WO2017001067A1

WO2017001067A1 - Filter connection assembly, filter assembly, and connecting device for connecting a filter to a filter connection assembly

Info

Publication number: WO2017001067A1
Application number: PCT/EP2016/055863
Authority: WO
Inventors: Andreas Kloz; Ulrich Dehnen; Christopher Marc Sturgess; Christian Thalmann
Original assignee: Mann+Hummel Gmbh
Priority date: 2015-07-01
Filing date: 2016-03-17
Publication date: 2017-01-05
Also published as: CN107810035B; CN107810035A; DE112016002982A5; DE102015008328B4; DE102015008328A1

Abstract

Disclosed are: a filter connection assembly (12) of a filter assembly (10) for fluid, in particular oil, fuel, water, urea solution, hydraulic fluid or air, in particular of an internal combustion engine, in particular of a motor vehicle, said filter assembly for connecting at least one filter (16) to at least one filter connection assembly (12); a filter assembly (10); and a connecting device (14). The connecting device (14) comprises at least one connecting part (24). The connecting part (24) has at least one attachment section (26) with which the connecting part is or can be fixedly connected to a connection base body (18) of the filter connection assembly (12). The at least one connecting part (24) has at least one connecting section (34) to which at least one corresponding filter side connecting element (42) on the side of the filter (16) is or can be connected. The at least one connecting part (24) has mechanically reinforcing properties in comparison to at least the region of the connection base body (18) with which it is fixedly connected. The at least one attachment section (26) extends with respect to a connection axis (22) of the connection between the at least one filter (16) and the at least one filter connection assembly (12), in the direction of which axis connecting forces can act radially and circumferentially between the at least one filter (16) and the at least one filter connection assembly (12) by means of the connecting device (14). The at least one attachment section (26) is attached to the connection base body (18) along the extent of said section in a force transmitting manner. The at least one connection part (24) is embedded in the connection base body (18), at least by means of the at least one attachment section (26), such that forces introduced via the filter (16) can be absorbed by the at least one connection part (24).

Description

description

Filter connection device, filter device and connection device for connecting a

Filters with a Filteranschlusseinrichtung

Technical area

The invention relates to a filter connection device of a filter device for fluid, in particular oil or fuel, with at least one connecting part of a connecting device for connecting at least one filter with the Filteranschlusseinrichtung, wherein the at least one connecting part has at least one attachment portion, with which it is connected to a terminal body of the Filteran- closing device is firmly connected or can be, and the at least one connecting part has at least one connecting portion, with which at least one corresponding filter-side connecting element can be connected on the side of the filter, wherein the at least one connecting part compared at least to the region of the terminal body, with which it is firmly connected is or can be, has mechanically reinforcing properties.

Furthermore, the invention relates to a filter device for fluid, in particular oil, fuel, water, urea water solution, hydraulic fluid or air, in particular an internal combustion engine, in particular a motor vehicle, with at least one filter, in particular a replaceable filter, with at least one filter connection device, in particular a filter head, and with at least one connection device for the particular releasable connection of the at least one filter to the at least one filter connection device, wherein the connection device comprises at least one connection part having at least one attachment portion with which it is or can be fixedly connected to a connection main body of the filter connection device; at least one connecting part having at least one connecting portion, with the at least one corresponding filter-side connecting element on the side of the filter in particular releasably indirectly ode r is directly connected or can be, wherein the at least one connecting part compared to at least to the region of the terminal body, with which it is firmly connected, has mechanically reinforcing properties. In addition, the invention relates to a connecting device of a filter device for fluid, in particular oil or fuel, in particular an internal combustion engine, in particular a motor vehicle, for connecting at least one filter with at least one Filteranschlusseinrichtung, wherein the connecting device comprises at least one connecting part having at least one attachment portion, with the it is or can be fixedly connected to a connection body of the filter connection device, and the at least one connection part has at least one connection section to which at least one corresponding filter-side connection element is or can be connected on the side of the filter, wherein the at least one connection part is at least in relation to the region the terminal body, with which it is or can be firmly attached, has mechanically reinforcing properties. State of the art

From US 201401 10321 A1 a connection-holding device for a filter housing is known. The port-holding device comprises a lower part, which is connected to an oil circuit of an internal combustion engine, and a fastening adapter for the filter housing. The lower part is made of plastic. The lower part has a liquid inlet and a liquid outlet. The attachment spacer is in one piece, preferably made of metal. The attachment spacer has an axial sleeve for connection to the filter housing and a first annular sealing portion formed between the base and the axial sleeve. The attachment spacer further includes an annular outer portion which is integral with the sleeve and which is connected to the base, forming a second annular sealing area.

The invention has for its object to make a Filteranschlusseinrichtung, a filter device and a connecting device of the type mentioned in which simply an even more robust, especially against pressure and / or pressure differences more stable, connection between the at least one filter and the at least one Filter connection device can be realized. In particular, a tightness of the connection is to be improved, in particular ensured over the service life.

Disclosure of the invention

This object is achieved in that the at least one mounting portion with respect to a connection axis of the connection between the at least one filter and the at least one Filteranschlusseinrichtung, in the direction of connecting forces by means of the connecting device between the at least one filter and the at least one Filteranschlusseinrichtung can act radially and extends circumferentially and is connected along its extension force-transmitting to the Anschlussgrundkorper, wherein the at least one connecting part is embedded at least with the at least one attachment portion in the Anschlußgrundkorper that introduced via the filter forces can be absorbed by the at least one connecting part. According to the invention, at least one mechanically reinforcing connecting part is provided, with which connection forces of the at least one filter can be better introduced into the connecting base body and vice versa. In this case, at least one attachment portion of the at least one connecting part extends transversely or laterally to the connection axis. The at least one fastening section is connected in a force-transmitting manner to the connection body along its extension. The attachment of the at least one connecting part to the Anschlußgrundkorper extends along the at least one attachment portion. In this way, connection forces can be introduced evenly over a correspondingly large area extending transversely to the direction of the connection forces in the Anschlußgrundkorper. The at least one connecting part reinforces the connection body over a large area transversely to the connection axis. Thus, a mechanical load on the connection body in the connection area can be reduced. Accordingly, the requirements for the mechanical strength of the connection body may be lower. A Danger of a functional impairment, in particular with regard to a holding function and / or sealing function, of the connection base body, in particular of the at least one filter connection device, can be reduced. Thus, the operability of the connecting device, the filter device and the filter connection device can be ensured, in particular also under operational loads, in particular pulsating forces and / or temperature influences.

The connection forces may advantageously be tensile forces and / or compressive forces.

Advantageously, the at least one attachment portion may comprise at least one support portion, which extends radially and circumferentially and is connected in a force-transmitting manner to the connection base body along its extension. The support portion may be realized as a collar on an edge of the at least one fastening portion. The support portion may extend circumferentially and radially outward and / or radially inward. In this way, a larger circumferential radial surface can be realized. Thus, relatively thin sheets can be used to realize at least one connecting part. Due to the greater extent of the support section, it is possible to prevent the support section from working through the plastic material of the connection main body as a result of correspondingly large axial pressure forces.

Advantageously, the at least one connecting part can have at least one connecting section, with which at least one corresponding filter-side connecting element can not be connected on the filter non-destructively releasably or detachably, indirectly or directly.

At least one connecting part may be or at least partially encapsulated insert, in particular metal insert. The at least one connecting part can be integrated into the connection body. In this way, no seals are required between the at least one connecting part and the connecting base body. The assembly or production of the filter connection device can thus be simplified.

Advantageously, portions of the at least one connecting part, which are not covered by the material of the terminal body and / or molded, have no connection to the environment, in particular to an engine compartment. In this way, can be dispensed with an additional seal to the environment. Such uncovered sections of the at least one connecting part may advantageously have a connection, in particular exclusively, to at least one fluid-conducting region of the filter device.

At least one connecting part can advantageously be prefabricated as a separate component. At least one connecting part may advantageously be in one piece. At least one attachment portion and at least one connection portion may be integrally connected with each other. In this way, the at least one connecting part can be easily and stably prefabricated. Alternatively, at least one connection part can consist of several pieces. Advantageously, the connecting device, in particular at least one connecting part, can have or consist of deep-drawn sheet metal and / or extruded profile. For example, attachment portion and connecting portion are made in one piece from a deep-drawn sheet metal. Advantageously, at least one fastening section may have a disk section or annular disk section which extends radially and peripherally with respect to the connecting axis. The disc portion or annular disc portion may be closed throughout or have openings. Advantageously, the disk section or annular disk section may have a central opening which at least can form and / or receive a fluid passage and / or at least one connecting section.

Advantageously, at least one connecting portion with respect to the connecting axis in the center, in particular in the middle of the at least one connecting part. Advantageously, the at least one attachment portion may extend radially outward from the at least one central connection portion with respect to the connection axis. Advantageously, the at least one attachment portion may realize or at least co-form with respect to the connection axis radially outer circumference of the at least one connection part. Advantageously, the at least one connecting part can be connected by means of the at least one fastening section from the at least one central connecting section to the radially outer circumference of the at least one connecting part, in particular continuously circumferentially and radially in a force-transmitting manner with the connecting base body.

Advantageously, the at least one connecting part may be cup-shaped or funnel-shaped. Advantageously, the open side of the at least one cup-shaped or funnel-shaped connecting part can point to the connection side of the filter. Overall, a force introduction between the at least one connecting part and the at least one connecting base body can be improved.

Advantageously, the at least one filter may be a so-called replaceable filter. In the replaceable filter, at least one filter element can be arranged in a housing pot of a filter housing. The replaceable filter can be exchanged completely with the filter housing and at least one filter element contained therein. Such replaceable filters can be configured and / or designated as spin-on filters, spin-on filters, in particular screw-on filters.

Advantageously, the at least one filter element can be fixedly arranged in the filter housing. Alternatively, at least one filter element can be arranged exchangeably in the filter housing.

The filter can be easily connected to the connecting device to the at least one filter connection device. In this case, the connecting device can be releasably, in particular non-destructively releasable. Advantageously, it may be a rotatable and / or pluggable with respect to the connection axis, in particular a screw-type or a bayonet-type, connecting device. The at least one filter connection device can advantageously have at least one fluid line for the fluid to be cleaned. Advantageously, the at least one filter connection device can have a fluid inlet line for fluid to be cleaned and / or a fluid outlet line for purified fluid. Advantageously, the at least one filter connection device may be part of a filter module, in particular an oil filter module. Alternatively or additionally, the at least one filter connection device can be firmly connected to a holding part, in particular a frame part, of a liquid system. The filter device, in particular an oil filter module, can advantageously be part of an engine oil circuit of an internal combustion engine of a motor vehicle. The at least one filter may be an engine oil filter for purifying engine oil supplied to the internal combustion engine. Alternatively, the filter device, in particular a fuel filter module, advantageously be part of a fuel system of an internal combustion engine of a motor vehicle. The filter connection device can be attached to the internal combustion engine or to a frame part of the internal combustion engine or of the motor vehicle. However, the invention is not limited to a filter device of an engine oil circuit or of a fuel system of an internal combustion engine of a motor vehicle. Rather, it can also be used in other types of fluid systems, in particular water-bearing systems, hydraulic systems, systems for urea-water solution or air-conducting systems, of motor vehicles or other machines. The filter device can also be used outside of motor vehicle technology, in particular in industrial engines.

In an advantageous embodiment, at least the connection base body of the at least one filter connection device may comprise or consist of plastic.

Plastic parts can easily be made with complex shapes. Plastic parts can be realized with a low weight compared to metal parts.

In a further advantageous embodiment, at least one connecting part can have or consist of at least one material reinforcing compared to the material of the connecting base body.

By using at least one reinforcing connecting part, the filter connecting device, in particular the connecting device with the connecting base body, can be realized as a hybrid component in which the respective properties, in particular stability and weight, of the materials used can be combined as needed.

Advantageously, at least one connecting part may comprise or consist of at least metal, preferably aluminum or steel, and / or reinforced plastic, preferably high-performance thermoplastic and / or duroplastic, or glass-fiber reinforced plastic, or a mixture of different reinforcing materials. In a further advantageous embodiment, at least one fastening section of the at least one connecting part can at least partially be penetrated by a material of the connecting base body and / or vice versa. In this way, a stable, uniform and surface force-transmitting attachment of the at least one fastening portion in / on the at least one connecting base body can be realized. Furthermore, the at least one connecting part can thus mechanically stabilize the at least one connecting body.

The materials and / or structures of the at least one connecting part on the one hand and the connecting base body on the other hand can penetrate each other for connection. Advantageously, one of the components, in particular at least one connecting part, at least partially embedded in the material of the other component, in particular the terminal body, in particular injected and / or cast, or sheathed by this, in particular encapsulated or encapsulated, be. In particular, at least one fastening section can at least partially be cast or injected into the material of the connecting base body and / or be encapsulated or encapsulated by the material

Advantageously, the at least one connecting part, in particular the at least one fastening section, have at least one opening into or through which the material of the at least one connecting base body can engage.

Advantageously, the at least one connecting part, in particular the at least one fixing portion, a plurality of webs, in particular with respect to the connecting axis radially extending webs, between which openings for the material of the at least one connecting base body are realized.

Alternatively, advantageously between at least one support section and at least one connecting section a continuous connection with holes exist. The holes can be sufficiently large so that the still flowable plastic can flow through during molding of the connecting base body and thus embed the connecting part. In this way, an attack surface for transmitting power between the at least one connecting base body and the connecting part can be increased.

In a further advantageous embodiment, at least one connecting part can have at least one head-side connecting element of a connection that can be rotated and / or plugged in with respect to the connecting axis. The at least one head-side connecting element can be easily connected by means of a rotary and / or plug-in movement with the corresponding filter-side connecting element or separated from it. By means of a rotatable and / or pluggable connection, connection forces, in particular tensile forces and / or compressive forces, can easily and reliably be transmitted in the direction of the connection axis between the at least one connecting part and the filter. Advantageously, at least one connecting section may have at least one head-side connecting element of a connection rotatable and / or pluggable with respect to the connecting axis.

The at least one head-side connecting element can be realized as a male or female part of the rotatable and / or plug-in connection.

Advantageously, the head-side connecting element can be realized as a threaded opening with an internal thread or as a threaded bolt with an external thread. The at least one head-side connecting element can advantageously be realized in one piece or in several pieces with at least one connecting portion of the at least one connecting part. The at least one connecting section, in particular the at least one head-side connecting element, can serve as an interface for connection to the filter. The rotatable and / or pluggable connection can advantageously be a screw connection, a plug connection, a latching connection and / or a bayonet connection.

The at least one head-side connecting element can advantageously be a thread or a part of a bayonet-type connection. Screw connections and bayonet-type connections can be realized in a particularly resilient manner against connection forces, in particular tensile forces, in the direction of the connection axis.

With the at least one head-side connecting element, a corresponding filter-side connecting element can be connected directly or indirectly, in particular by means of an adapter part.

In a further advantageous embodiment, at least one connecting part may have at least one receptacle for at least one adapter part for connecting the at least one connecting part to at least one filter-side connecting element. The at least one adapter part can be replaced if necessary. Different adapter parts may be provided for connecting filters with different filter-side connecting elements.

The at least one receptacle can be designed as a female part for receiving a male part of the adapter part or as a male part for receiving a female part of the adapter part.

At least one receptacle may alternatively be suitable for directly receiving at least one corresponding filter-side connecting element. In this way, it is possible to dispense with a corresponding adapter part.

Optionally, at least one receptacle can advantageously be made in one piece or in several pieces with at least one connecting part, in particular at least one connecting section and / or less least one head-side connecting element, be realized. Advantageously, at least one receptacle can be an opening or a threaded opening.

Advantageously, at least one connecting portion may comprise at least one receptacle for at least one adapter part for connecting the at least one connecting part to at least one filter-side connecting element.

In a further advantageous embodiment, at least one connecting nipple may be connected in one piece or in several pieces to at least one connecting section of at least one connecting part. On the at least one connecting nipple, a corresponding receptacle on the side of the at least one filter by means of a rotary and / or plugging movement can be applied.

Advantageously, at least one connecting nipple can have or be at least one screw nipple.

Advantageously, at least one adapter part can have or be at least one connecting nipple, in particular screw nipples.

A connecting nipple, in particular a screw nipple, can easily be introduced, in particular screwed in, with one end into a receptacle configured as an opening, in particular a threaded opening, on the side of the at least one connecting part by means of a rotary and / or plugging movement. With the opposite end of the connecting nipple, in particular screw nipple, are simply screwed into a corresponding as an opening, in particular threaded opening, designed filter-side connecting element. The connection nipple can be connected first to the at least one connection part or first to the filter. Accordingly, the connection nipple can remain on the filter connection device or on the filter when the filter is separated from the filter connection device.

Advantageously, at least one adapter part can be prefixed in particular by means of a press fit on the side of the at least one connecting part. The at least one adapter part can have a head at its end that is axially opposite the connection side for the filter. The at least one adapter part can be inserted from the connection side for the filter axially opposite side into a corresponding receptacle of at least one connecting portion and be pressed at the level of the head in this. The head can stabilize the press fit and increase the strength. A press fit can also be realized easily and inexpensively.

Advantageously, the at least one adapter part or at least one connecting nipple inside hollow, in particular tubular, be. In this way, the adapter part or the connecting nipple can at least form a fluid line, in particular a fluid outlet or a fluid inlet. With the at least one adapter part or the at least one connecting nipple, a fluid passage, in particular a fluid outlet or a fluid inlet, of the filter with a fluid line, in particular one Fluid outlet or a fluid inlet line, the Filteranschlusseinrichtung be connected.

In a further advantageous embodiment, at least one connecting part, in particular at least one fastening section, at least one support section for supporting at least one sealing element of a sealing device between the filter and the at least one filter connection device. In this way, a correspondingly greater sealing force can be transmitted to the sealing element or from this to the connection base body and / or the at least one filter. Connecting forces between the at least one filter and the filter connection device, in particular at least one connecting part, can thus be initiated directly into the sealing device, so that the corresponding sealing forces can be increased. In this case, the forces acting thereby are for the most part transmitted by the at least one connecting part, so that the connecting base body is thereby virtually not mechanically stressed. Also, corresponding forces acting through operational pressure differences in the region between the connection base body and the filter can largely be taken over by the at least one connection part.

Advantageously, at least one support section can be located in the region of a radially outer edge of the at least one connecting part, in particular at least one connecting section, with respect to the connecting axis. In this way, the sealing device can seal radially on the outside. It can thus seal off all the fluid lines located radially inside the at least one support section to the outside, in particular towards the surroundings.

Advantageously, at least one fastening section may at least form at least one supporting section for supporting at least one sealing element of a sealing device between the filter and the at least one filter connecting device.

Advantageously, at least one sealing element can have or be at least one seal.

Furthermore, the technical problem is solved in the filter device, characterized in that the at least one attachment portion with respect to a connection axis of the connection between the at least one filter and the at least one Filteranschlusseinrichtung, in the direction of connecting forces, in particular tensile forces, by means of the connecting device between the at least one filter and the at least one filter connection device can act, extends radially and circumferentially and is connected in a force-transmitting manner along its extension to the connection base body. In addition, the technical problem in the connection device is achieved in that the at least one attachment portion with respect to a connection axis of the connection between the at least one filter and the at least one Filteranschlusseinrichtung, in the direction connecting forces by means of the connecting device between the at least one filter and the at least one Filteranschlusseinrichtung can act radially and circumferentially extending and is connected along its extension force-transmitting to the terminal body or can be, wherein the at least one connecting part at least with the at least one attachment portion is embedded in the terminal body or can be so that introduced via the filter forces can be absorbed by the at least one connecting part.

Incidentally, the features and advantages shown in connection with the connecting device according to the invention, the filter device according to the invention and the filter connection device according to the invention and their respective advantageous embodiments apply mutatis mutandis and vice versa. The individual features and advantages can, of course, be combined with one another, whereby further advantageous effects can be achieved that go beyond the sum of the individual effects.

Brief description of the drawings

Further advantages, features and details of the invention will become apparent from the following description, are explained in more detail in the embodiments of the invention with reference to the drawing. The person skilled in the art will expediently also individually consider the features disclosed in combination in the drawing, the description and the claims in combination and combine these with meaningful further combinations. They show schematically:

1 shows an isometric view of a fluid filter module according to a first exemplary embodiment of a fluid system of an internal combustion engine, with a filter head and a spin-on filter mounted thereon in an exchangeable manner;

Figure 2 is a longitudinal section of the fluid filter module of Figure 1;

FIG. 3 shows a detailed representation of a connecting part of a connecting device of the fluid filter module from FIGS. 1 and 2 for connecting the spin-on filter to the filter head;

Figure 4 is a further detail of the connecting part of Figure 3;

Figure 5 is a plan view of the connecting part of Figures 3 and 4;

FIG. 6 shows a detailed representation of a connecting part of a connecting device of the fluid filter module from FIGS. 1 and 2 for connecting the spin-on filter to the filter head according to an alternative embodiment;

FIG. 7 shows an isometric illustration of a fluid filter module according to a second exemplary embodiment of a fluid system of an internal combustion engine, with a filter head and a spin-on filter mounted thereon in an exchangeable manner;

FIG. 8 shows a longitudinal section of the fluid filter module from FIG. 7;

FIG. 9 shows the filter head of the fluid filter module from FIGS. 7 and 8;

FIG. 10 shows a detailed representation of a connecting part with an adapter part of a connecting device of the fluid filter module from FIGS. 7 and 8 for connecting the spin-on filter to the filter head;

Figure 1 1 is a further detail of the connecting part with the adapter part of Figure 10;

FIG. 12 shows a detailed representation of the connecting part from FIGS. 10 and 11 without adapter part;

13 shows a detailed representation of the adapter part from FIGS. 10 and 11 without connecting part.

In the figures, the same components are provided with the same reference numerals. Embodiment (s) of the invention

FIG. 1 shows a fluid filter module 10 for cleaning fluid, for example engine oil, fuel or another operating fluid or air, of an internal combustion engine of a motor vehicle according to a first exemplary embodiment. FIG. 2 shows a longitudinal section through the fluid filter module 10. The fluid filter module 10 is arranged in an otherwise not shown fluid system, for example an engine oil circuit or a fuel system, of the internal combustion engine.

The fluid filter module 10 comprises a filter head 12, in Figures 1 and 2 below, to which by means of a releasable connection means 14, a filter 16, above, is interchangeably connected.

The filter head 12 is connected to the internal combustion engine and serves as Filteranschlusseinrichtung for the filter 16. The filter head 12 comprises a connection body 18 made of plastic, having a concealed in the figures inlet channel and an outlet channel 20 for the fluid. The outlet channel 20 is coaxial with an axis 22 in the region of its end facing the filter 16. The inlet channel and the outlet channel 20 are connected outside the fluid filter module 10 in a manner not of further interest with corresponding fluid lines of the fluid system.

In the exemplary embodiment, the axis 22 coincides with a filter axis of the filter 16, an attachment / disassembly axis of the filter 16 to the filter head 12 and a connection axis of the connection device 14. Connecting forces act in the direction of the connection axis, in the exemplary embodiment essentially tensile forces and Compressive forces, from the filter 16 via the connecting device 14 to the filter head 12th

For better clarity, the filter axis, the attachment / disassembly axis and the connection axis are provided with the same reference numeral 22 below and are referred to as axis 22 for short. It is understood that with degraded filter 16, depending on the context, the filter axis, the attachment / disassembly axis and / or the connection axis is meant. In the following, if "radial", "coaxial", "axial", "circumferential" or the like is mentioned, this refers to the axis 22 unless otherwise stated.

The filter 16 is configured as an exchangeable filter, which can also be referred to as a spin-on filter or spin-on filter. The filter 16 may be connected to and disconnected from the filter head 12 by a combined rotary / plugging motion, in the illustrated embodiment with a screwing motion, about the axis 22 by means of the connecting device.

The connecting device 14 comprises a coaxial head-side connecting part 24 shown in detail in FIGS. 3 to 5. The connecting part 24 is approximately cup-shaped. The open side of the "cup" points to the filter 16. The connecting part 24 is connected as a separate component fixed to the terminal body 18. The connecting part 24 is made of metal, for example aluminum or steel, which has a reinforcing effect in comparison to the plastic of the connecting base body 18. The connecting part 24 can be a deep-drawn sheet metal or an extruded profile by way of example. The connecting part 24 has a fastening section 26, which is enclosed by the plastic of the connecting base body 18 and embedded in it. Portions of the connecting part 24 which are not covered and / or encapsulated by the material of the connecting base body 18 have no connection to the environment, for example to an engine compartment. Such uncovered portions of the connection part 24 are exclusively connected to a fluid-carrying region of the fluid filter module 10 on the raw fluid side between the filter head 12 and the filter 16.

By means of the fastening portion 26, the connecting part 24 with the terminal body 18 of the filter head 12 is firmly connected.

The attachment portion 26 has radially outward on a coaxial outer cylindrical portion 28 which merges at its end remote from the filter 16 radially inwardly integrally into a coaxial annular disc portion 30 of the mounting portion 26. The coaxial annular disc section 30 is connected via radially extending webs 32 of the mounting portion 26 with a coaxial hollow cylindrical connecting portion 34 of the connecting part 24. The attachment portion 26 extends generally with respect to the axis 22, here the connection axis, from the connecting portion 34 radially outwardly and circumferentially contiguous. The attachment portion 26 of the connecting part 24 is encapsulated and enclosed by the plastic of the connecting base body 18. In this case, the plastic penetrates the openings between the radially extending webs 32. The attachment portion 26 is over its entire radial and circumferential extent, ie from the connecting portion 34 to the radially outer side of the radially outer cylindrical portion 28 and over the entire circumference force transmitting to the terminal body 18th connected. The inside of the connecting portion 34 is free of the plastic of the terminal body 18.

The connecting portion 34 has a coaxial head-side internal thread 36. The head-side internal thread 36 forms a head-side connecting element.

The connecting portion 34 forms a coaxial receptacle 38 for a hollow, tubular, coaxial adapter part 40. The adapter part 40 is realized as a screw nipple. The adapter part 40 is integrally connected to the connecting portion 34 at one end. At the other end, the adapter part 40 is screwed into a filter-side coaxial threaded opening 42 of a housing cover 44 of the filter 16. The filter-side threaded opening 42 serves as a filter-side connecting element. The adapter part 40 thus indirectly connects the connecting part 24 and thus the filter head 12 via the connecting portion 34 releasably connected to the filter 16.

The adapter part 40 has, in addition to its end facing the connection part 24, a head-side external thread 46, which fits to the internal thread 36 of the connection section 34. In addition to its opposite, the connecting part 24 facing away from the adapter part 40 has a filter-side external thread 48, which matches the internal thread of the filter-side threaded opening 42 of the filter 16. Axially between the head-side external thread 46 and the filter-side external thread 48, a coaxial hexagonal section 50 is arranged radially on the outside, on which a corresponding tool for screwing or unscrewing the adapter part 40 can be attached.

The free end edge of the coaxial outer cylindrical portion 28 of the attachment portion 26 forms an annular coaxial support portion 52 for supporting a seal ring seal 54 between the filter 16 and the filter head 12. The diameter of the ring seal 54 corresponds to the diameter of the support portion 52nd

The filter 16 has a coaxial filter housing 56 with a housing pot 58, in Figures 1 and 2 above, which is closed with the housing cover 44. The housing cover 44 and the housing pot 58 are made of metal. The housing cover 44 is connected radially on the outside by means of a flange with the edge of the housing pot 58.

The housing cover 44 has the coaxial filter-side threaded opening 42, which also forms an outlet of the filter 16 for purified fluid. Furthermore, the housing cover 44 has a plurality of eccentric inlet openings concealed in FIG. 2, through which fluid to be cleaned can flow into the filter housing 56.

Fluidically, between the threaded opening 42 and the inlet openings, a filter element 60 in the form of a round filter element, which is of no further interest, is arranged coaxially so as to separate the threaded opening 42 from the inlet openings. An element interior 62 of the filter element 60 is connected to the filter-side threaded opening 42, with the filter 16 attached to the interior of the adapter part 40. Radially outwardly of the inlet openings, the coaxial annular seal 54 is disposed in a corresponding sealing groove of the housing cover 44, thus surrounding the threaded opening 42 and the inlet openings.

For the production of the fluid filter module 10, the filter head 12 and the filter 16 are prefabricated separately.

The terminal body 18 of the filter head 12 is molded or molded from plastic. In this case, the connecting part 24 is poured with its attachment portion 26 in the plastic with. The interior of the connecting portion 34 with the receptacle 38 remains free. The receptacle 38 for the adapter part 40 merges into the outlet channel 20 of the connection body 18.

The adapter part 40 is screwed with its head-side external thread 46 ahead in the internal thread 36 of the connecting portion 34. There it remains even with an exchange of the filter 16. Subsequently, the filter 16 is screwed with the housing cover 44 ahead with the internal thread of the threaded opening 42 on the filter-side external thread 48 of the adapter part 40. The interior of the Adapter part 40 fluidly connects the element interior 62 of the filter 16 with the outlet channel 20 of the connection body 18. The adapter part 40 thus forms part of the fluid outlet line of the fluid filter module 10. In the correct installation position, the side of the ring seal 54 facing the filter head 12 lies sealingly against a corresponding circumferential one Seal surface of the filter head 12, which is formed by the plastic of the terminal body 18 axially between the support portion 52 of the connecting part 24 and the ring seal 54. The mechanical connection forces acting on the connection device 14 are introduced uniformly via the attachment section 26 of the connection part 24 into the connection base body 18. The axial sealing forces on the ring seal 54 are largely taken over by the connecting part 24 and the adapter part 40 and kept away from the connection body 18. Furthermore, corresponding forces, which arise as a result of operational pressure differences, are largely taken over by the connecting part 24 in the region between the connecting base body 18 and the filter 16.

FIG. 6 shows an alternative embodiment of the connecting part 24 which is an alternative to the multipart embodiment of FIGS. 3-5. It is discussed here only on the differences of the components, the same features are not repeated. Integrally formed with the attachment portion 26 is a connection portion 34 which forms a connection nipple for connection to the filter 16. The connecting portion 34 has corresponding to the adapter part 40 via an external thread 48, which fits to the internal thread of the filter-side threaded opening 42 of the filter 16. Such a one-piece connecting part 24 can be produced, for example, from a deep-drawn sheet metal, wherein the thread is then cut into the connecting piece subsequent to the deep-drawing process.

FIGS. 7 to 13 show a second exemplary embodiment of a fluid filter module 10 in different perspectives, sections and detailed views. Those elements that are similar to those of the first embodiment of Figures 1 to 5 are provided with the same reference numerals. The second embodiment differs from the first embodiment in that the adapter part 40 is pre-fixed in the annular disk-shaped connecting portion 34 of the connecting part 24 by means of a press fit 164. The adapter part 40 has at its the connection side for the filter 16 axially opposite end of a head 166. The head 166 projects beyond the remaining adapter part 40 radially outward. The outer diameter of the head is greater than the inner diameter of the receptacle 38 for the adapter part. The adapter part 40 is inserted from the connection side for the filter 16 axially opposite side into the receptacle 38 of the connecting portion 34 and pressed at the height of the head 166 in this. The head 166 stabilizes the interference fit 164 and increases strength. A press fit 164 can also be realized easily and inexpensively. Further, the second embodiment differ from the first embodiment in that the support portion 52 is realized as a collar on the edge of the attachment portion 26. From the- support portion 52 extends circumferentially and radially outward. In this way, a larger circumferential and radial surface can be realized. So thin sheets can be used to realize the connecting part 24. Due to the greater extent of the support portion 52 can be prevented that the support portion 52 as a result of correspondingly large axial compressive forces by the plastic material of the terminal body 18 through works.

In addition, the second embodiment differs from the first embodiment in that the attachment portion 26 is funnel-shaped. The open side of the "funnel" points to the connection side of the filter 16. In this way, the introduction of force into the connection base body 18 can be improved.

In addition, the second embodiment differs from the first embodiment in that between the support portion 52 and the connecting portion 34 is a flat continuous connection with holes 168. The holes 168 are significantly smaller than in the first embodiment, the corresponding openings between the webs 32. In this way, a contact surface for transmitting power between the terminal body 18 and the connecting part 24 can be increased.

Claims

claims

Filter connection device (12) of a filter device (10) for fluid, in particular oil or fuel, with at least one connection part (24) of a connection device (14) for connecting at least one filter (16) to the filter connection device (12), wherein the at least one connection part ( 24) has at least one attachment portion (26) with which it is or can be fixedly connected to a connection base body (18) of the filter connection device (12), and the at least one connection part (24) has at least one connection section (34) with which at least a corresponding filter-side connecting element (42) on the side of the filter (16) can be connected, wherein the at least one connecting part (24) compared to at least the region of the terminal body (18), with which it is or can be fixed, mechanically reinforcing properties characterized in that the at least one Befestigungsab section (26) with respect to a connection axis (22) of the connection between the at least one filter (16) and the at least one filter connection device (12), in the direction of which connecting forces by means of the connection device (14) between the at least one filter (16) and the at least a filter connection device (12) can act, extends radially and circumferentially and is connected along its extension in a force-transmitting manner to the connection base body (18), wherein the at least one connection part (24) at least with the at least one attachment section (26) into the connection base body (18) embedded, that on the filter (16) initiated forces of the at least one connecting part (24) can be accommodated.

Filter connection device according to claim 1, characterized in that at least the connection base body (18) of the at least one filter connection device (12) comprises plastic or consists thereof.

Filter connection device according to claim 1 or 2, characterized in that at least one connecting part (24) has at least one compared to the material of the terminal body (18) reinforcing material or consists thereof.

Filter connection device according to one of the preceding claims, characterized in that at least one fastening section (26) of the at least one connecting part (24) is at least partially penetrated by a material of the connecting base body (18) and / or vice versa.

Filter connection device according to one of the preceding claims, characterized in that at least one connecting part (24) at least one head-side connecting element (36) with respect to the connecting axis (22) rotatable and / or pluggable connection.

Filter connection device according to one of the preceding claims, characterized in that at least one connecting part (24) has at least one receptacle (38) for at least one adapter part (40) for connecting the at least one connecting part (24) with at least one filter-side connecting element (42).

Filter connection device according to one of the preceding claims, characterized in that at least one connecting nipple (40) is integral or multi-piece with at least one connector. section (34) of at least one connecting part (24) is or can be connected.

Filter connection device according to one of the preceding claims, characterized in that at least one connecting part (24) at least forms at least one support section (52) for supporting at least one sealing element (54) of a sealing device between the filter (16) and the at least one filter connection device (12) ,

Filter device (10) for fluid, in particular oil or fuel, in particular an internal combustion engine, in particular of a motor vehicle, with at least one filter, with at least one Filteranschlusseinrichtung according to one or more of the preceding claims and at least one connecting device (14) for connecting the at least one filter (16) with the at least one filter connection device (12), wherein the connection device (14) comprises at least one connection part (24) having at least one attachment portion (26) with which it is fixed to a connection base body (18) of the filter connection device (12) or at least one connecting part (24) has at least one connecting section (34) to which at least one corresponding filter-side connecting element (42) is or can be connected on the side of the filter (16), the at least one connecting part (24) 24) compared to at least de m area of the terminal body (18) to which it is firmly connected, has mechanically reinforcing properties, characterized in that the at least one mounting portion (26) with respect to a connection axis (22) of the connection between the at least one filter (16) and at least one filter connection device (12) in the direction of which connection forces can act radially and circumferentially between the at least one filter (16) and the at least one filter connection device (12) by means of the connection device (14) and along its extension force-transmitting with the connection main body (18 ), wherein the at least one connecting part (24) is embedded in the connecting base body (18) at least with the at least one fastening section (26) such that forces introduced via the filter (16) are picked up by the at least one connecting part (24) can.

Connecting device (14) of a filter device (10) for fluid, in particular oil or fuel, in particular an internal combustion engine, in particular of a motor vehicle, in particular according to the previous claim, for connecting at least one filter (16) with at least one filter connection device (12), wherein the connecting device (14) at least one connecting part (24) having at least one fastening portion (26) with which it is or can be fixedly connected to a connecting base body (18) of the filter connection device (12) and the at least one connecting part (24) at least a connecting portion (34) to which at least one corresponding filter-side connecting element (42) on the side of the filter (16) is or can be connected, wherein the at least one connecting part (24) compared to at least to the region of the terminal body (18), with to which it is firmly connected or can be mechanically strengthened characterized in that the at least one fastening portion (26) with respect to a connection axis (22) of the connection between the at least one filter (16) and the at least one filter connection device (12), in the direction connecting forces by means of the connecting device (14 ) between the at least one filter (16) and the at least one filter connection device (12) can act radially and circumferentially extending and along its extension force-transmitting connected to the terminal body (18) or can be, wherein the at least one connecting part (24) at least with the at least one fastening section (26) is or can be embedded in the connection base (18) in such a way that it is introduced via the filter (16)

Forces can be absorbed by the at least one connecting part (24).