EP1148243A3 - Plastic pump rotor with protection surface - Google Patents

Plastic pump rotor with protection surface Download PDF

Info

Publication number
EP1148243A3
EP1148243A3 EP01710019A EP01710019A EP1148243A3 EP 1148243 A3 EP1148243 A3 EP 1148243A3 EP 01710019 A EP01710019 A EP 01710019A EP 01710019 A EP01710019 A EP 01710019A EP 1148243 A3 EP1148243 A3 EP 1148243A3
Authority
EP
European Patent Office
Prior art keywords
plastic
pump rotor
protection surface
plastic pump
top layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01710019A
Other languages
German (de)
French (fr)
Other versions
EP1148243A2 (en
EP1148243B1 (en
Inventor
Horst Heinz Höschele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Netzsch Pumpen and Systeme GmbH
Original Assignee
Netzsch Pumpen and Systeme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10024849A external-priority patent/DE10024849C1/en
Application filed by Netzsch Pumpen and Systeme GmbH filed Critical Netzsch Pumpen and Systeme GmbH
Publication of EP1148243A2 publication Critical patent/EP1148243A2/en
Publication of EP1148243A3 publication Critical patent/EP1148243A3/en
Application granted granted Critical
Publication of EP1148243B1 publication Critical patent/EP1148243B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type

Abstract

Die Erfindung betrifft Kunststoffteile mit einer Schutzoberfläche, insbesondere Pumpenrotoren, Gelenkteile, oder ähnliches. Erfindungsgemäße Kunststoffteile haben einen Kunststoffkern, auf den eine Verbindungsschicht aus einer Aluminium-Silizium-Legierung aufgebracht ist, auf die wiederum eine verschleiß- und/oder korrosionsbeständige Deckschicht aufgebracht ist. Die Verbindungsschicht haftet zum einen gut an dem Kunststoffkern und stellt zum anderen einen hervorragenden Haftgrund für die Deckschicht dar.The invention relates to plastic parts with a protective surface, in particular pump rotors, joint parts, or the like. Plastic parts according to the invention have a plastic core, on the one connection layer made of an aluminum-silicon alloy is applied, in turn a wear and / or corrosion resistant top layer applied is. The connection layer adheres well to the one Plastic core and on the other hand provides an excellent Is the basis for the top layer.

EP20010710019 2000-04-17 2001-04-12 Plastic pump part with protection surface Expired - Fee Related EP1148243B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10018977 2000-04-17
DE10018977 2000-04-17
DE10024849 2000-05-19
DE10024849A DE10024849C1 (en) 2000-04-17 2000-05-19 Plastic pump part with protective surface

Publications (3)

Publication Number Publication Date
EP1148243A2 EP1148243A2 (en) 2001-10-24
EP1148243A3 true EP1148243A3 (en) 2002-12-18
EP1148243B1 EP1148243B1 (en) 2004-06-23

Family

ID=26005347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010710019 Expired - Fee Related EP1148243B1 (en) 2000-04-17 2001-04-12 Plastic pump part with protection surface

Country Status (2)

Country Link
EP (1) EP1148243B1 (en)
JP (1) JP2001355057A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006077873A (en) * 2004-09-09 2006-03-23 Jtekt Corp Universal joint
DE102018222516A1 (en) * 2018-12-20 2020-06-25 Audi Ag Drive device for a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1678476B1 (en) * 1963-08-06 1970-02-12 Eugen Soeding Eccentric screw pump
US5120204A (en) * 1989-02-01 1992-06-09 Mono Pumps Limited Helical gear pump with progressive interference between rotor and stator
EP0627556A1 (en) * 1993-03-18 1994-12-07 Praxair S.T. Technology, Inc. Carbide or boride coated rotor for a positive displacement motor or pump
US5498142A (en) * 1995-05-30 1996-03-12 Kudu Industries, Inc. Hardfacing for progressing cavity pump rotors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203988A (en) 1986-02-28 1987-09-08 Inoue Japax Res Inc Pump
DE4039352A1 (en) 1990-12-10 1992-06-11 Leybold Ag METHOD AND DEVICE FOR PREPARING LAYERS ON SURFACES OF MATERIALS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1678476B1 (en) * 1963-08-06 1970-02-12 Eugen Soeding Eccentric screw pump
US5120204A (en) * 1989-02-01 1992-06-09 Mono Pumps Limited Helical gear pump with progressive interference between rotor and stator
EP0627556A1 (en) * 1993-03-18 1994-12-07 Praxair S.T. Technology, Inc. Carbide or boride coated rotor for a positive displacement motor or pump
US5498142A (en) * 1995-05-30 1996-03-12 Kudu Industries, Inc. Hardfacing for progressing cavity pump rotors

Also Published As

Publication number Publication date
EP1148243A2 (en) 2001-10-24
JP2001355057A (en) 2001-12-25
EP1148243B1 (en) 2004-06-23

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