WO2006086971A1 - Device and method for supplying a secondary fuel to a fuel-driven or internal combustion engine - Google Patents

Device and method for supplying a secondary fuel to a fuel-driven or internal combustion engine Download PDF

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Publication number
WO2006086971A1
WO2006086971A1 PCT/DE2006/000290 DE2006000290W WO2006086971A1 WO 2006086971 A1 WO2006086971 A1 WO 2006086971A1 DE 2006000290 W DE2006000290 W DE 2006000290W WO 2006086971 A1 WO2006086971 A1 WO 2006086971A1
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WO
WIPO (PCT)
Prior art keywords
fuel
valve
internal combustion
flow channel
combustion engine
Prior art date
Application number
PCT/DE2006/000290
Other languages
German (de)
French (fr)
Inventor
Klaus Peter Broeker
Original Assignee
Klaus Peter Broeker
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
Application filed by Klaus Peter Broeker filed Critical Klaus Peter Broeker
Publication of WO2006086971A1 publication Critical patent/WO2006086971A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0281—Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/066—Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0686—Injectors
    • F02D19/0692—Arrangement of multiple injectors per combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/04—Injectors peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/44—Valves, e.g. injectors, with valve bodies arranged side-by-side
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

  • the invention relates to a method for operating a fuel engine and to an apparatus for carrying out the method.
  • an internal combustion engine which has an injection system with which in addition to a diesel fuel methane can be injected. This is done by an opening into the intake passage, so attached to the actual intake passage, additional valve.
  • the object of the invention is to provide a method and a device which allows an improved feed of additional fuels and on the other hand improves the efficiency of the internal combustion engine, taking into account a variable fuel use.
  • a primary fuel is gasoline, diesel and / or another fossil fuel and as a secondary fuel hydrogen and / or methane gas in question.
  • the device or the method uses the already existing on a fuel motor and specially trained fuel valve ports to perform the secondary fuel to the combustion chambers in addition to the primary fuel.
  • entry point or access point The location leading to combustion chambers is referred to generally as an entry point or access point
  • the device has the same mechanical design at the entry point side and corresponds to the installation and installation specifications of the valve provided at the same location, so that installation without further measures, tools or machining is ensured.
  • the device acts as an extension and displaces the responsible for the primary supply valve spatially. By means of a flow-optimized bore, the main flow channel establishes the connection from the primary valve to the feed point.
  • the secondary feed takes place through a secondary flow channel.
  • this bypass duct leads essentially tangentially into the main flow channel and thus to the same feed point as that of the primary fuel.
  • Each of the valves is mechanically sealed to the device according to its technical requirements and if necessary also fixed.
  • the method or apparatus is / are applicable to all fuel and internal combustion engines, but especially intended for engines with a sequential feed-in control.
  • the drawing shows a simplified representation of the device shown as an adapter
  • the upper drawing ( Figure 1) shows a feed point (6) with a primary valve (4) without application of the method or the device.
  • the middle drawing ( Figure 2) shows a feed point (6) with a device (1) as a double valve arrangement with a primary valve (4) and a secondary valve (5).
  • the lower drawing ( Figure 3) shows a device (1) as an adapter for receiving the valves 4 and 5. Shown are the main flow channel (2) as a direct passage to the feed point and a secondary flow channel (3) of the tangentially into the main flow channel (2) opening

Abstract

The invention relates to a method and a device for operating a fuel-driven motor. According to said method, a secondary fuel is supplied to the combustion chamber in addition to, or instead of a primary fuel.

Description

Vorrichtung und Verfahren zur Einspeisung eines Sekundärkraftstoffes bei Kraftstoff- und VerbrennungsmotorenApparatus and method for feeding a secondary fuel in fuel and internal combustion engines
Die Erfindung betrifft ein Verfahren zum Betrieb eines Kraftstoffmotors sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for operating a fuel engine and to an apparatus for carrying out the method.
Aus der DE 696 00 267 T2 ist eine Brennkraftmaschine bekannt, die ein Einspritzsystem aufweist, mit dem zusätzlich zu einem Dieselkraftstoff Methan einspritzbar ist. Dies erfolgt durch ein in den Ansaugkanal mündendes, also an den eigentlichen Ansaugkanal angesetztes, Zusatzventil.From DE 696 00 267 T2, an internal combustion engine is known, which has an injection system with which in addition to a diesel fuel methane can be injected. This is done by an opening into the intake passage, so attached to the actual intake passage, additional valve.
Eine derartige Anordnung ist aus strömungstechnischer Sicht ungünstig.Such an arrangement is unfavorable from a fluidic point of view.
Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zu schaffen, das bzw. die eine verbesserte Einspeisung von Zusatztreibstoffen ermöglicht und andererseits den Wirkungsgrad des Verbrennungsmotors unter Berücksichtigung eines variablen Treibstoff Einsatzes verbessert.The object of the invention is to provide a method and a device which allows an improved feed of additional fuels and on the other hand improves the efficiency of the internal combustion engine, taking into account a variable fuel use.
Hierzu werden erfindungsgemäss neben oder statt dem Primärtreibstoff weitere Treibstoffe, nämlich Sekundärtreibstoffe, dem Verbrennungsmotor zugeführtFor this purpose, according to the invention, in addition to or instead of the primary fuel, further fuels, namely secondary fuels, are supplied to the internal combustion engine
Als Primärtreibstoff kommt Benzin, Diesel und / oder ein anderer fossiler Treibstoff und als Sekundärtreibstoff Wasserstoff und / oder Methangas in Frage.As a primary fuel is gasoline, diesel and / or another fossil fuel and as a secondary fuel hydrogen and / or methane gas in question.
Die Vorrichtung bzw. das Verfahren nutzt dabei die bereits an einem Kraftstoffmotor vorhandenen und dafür eigens ausgebildeten Treibstoff-Ventilzugänge, um zusätzlich zu dem Primärtreibstoff den Sekundärtreibstoff den Verbrennungsräumen zu zuführen.The device or the method uses the already existing on a fuel motor and specially trained fuel valve ports to perform the secondary fuel to the combustion chambers in addition to the primary fuel.
Der Ort, der zu Verbrennungsräumen bzw. einem Verbrennungsraum führt, wird allgemein als Einspeisepunkt oder Zugangspunkt bezeichnet bzw. definiertThe location leading to combustion chambers is referred to generally as an entry point or access point
Es ist dabei vorrangig, das die Vorrichtung die Entfernung zum ursprünglichen Einspeisepunkt sich nur unwesentlich verändert.It is paramount that the device changes the distance to the original feed point only insignificantly.
Das Vorrichtung verfügt an der Einspeisepunktseite über die gleiche mechanische Ausbildung und entspricht den An- und Einbauspezifikationen des am gleichen Ort voran vorgesehenen Ventils, so das ein Einbau ohne weitere Massnahmen, Werkzeuge oder Bearbeitung gewährleistet ist. Die Vorrichtung wirkt als Verlängerung und versetzt das für die Primäreinspeisung zuständige Ventil räumlich. Mittels einer strömungstechnisch optimierten Bohrung stellt der Hauptströmungskanal die Verbindung vom Primärventil zum Einspeispunkt her.The device has the same mechanical design at the entry point side and corresponds to the installation and installation specifications of the valve provided at the same location, so that installation without further measures, tools or machining is ensured. The device acts as an extension and displaces the responsible for the primary supply valve spatially. By means of a flow-optimized bore, the main flow channel establishes the connection from the primary valve to the feed point.
Um die Strömungscharakteristik nur unwesentlich zu beeinflussen, darf der Abstand des Primärventils zum Einspeisepunkt nur eine geringfügige Wegverlängerung aufweisen. Diese Veränderungen werden durch steuerungstechnische Massnahmen später elektronisch ausgeglichen.In order to influence the flow characteristics only insignificantly, the distance of the primary valve to the feed point may only have a slight extension of the path. These changes will later be electronically compensated by control measures.
Die Sekundäreinspeisung erfolgt durch einen Nebenströmungskanal.The secondary feed takes place through a secondary flow channel.
Bedingt durch eine Y-Anordnung der Bohrungen führt dieser Nebenströmungskanal im wesentlichen tangential in den Hauptströmungskanal und somit zum gleichen Einspeisepunkt wie dem des Primärtreibstoffes.Due to a Y-arrangement of the bores, this bypass duct leads essentially tangentially into the main flow channel and thus to the same feed point as that of the primary fuel.
Jedes der Ventile ist an der Vorrichtung seinen technischen Anforderungen entsprechend mechanisch abgedichtet und bei Bedarf auch befestigt.Each of the valves is mechanically sealed to the device according to its technical requirements and if necessary also fixed.
Das Verfahren bzw. die Vorrichtung ist / sind anwendbar auf alle Kraftstoff- und Verbrennungsmotoren, besonders aber gedacht für Motoren mit einer sequentiellen Einspeisesteuerung.The method or apparatus is / are applicable to all fuel and internal combustion engines, but especially intended for engines with a sequential feed-in control.
Der Vorteil gegenüber anderen Systemen liegt nun In der nur geringfügig veränderten Einspeisepunktposition der Ventile zum der des ursprünglichen Einspeisepunkt. Dadurch ergibt sich die Möglichkeit, innerhalb der üblichen Toleranzwerte der Regelcharakteristik einer Motorensteuerung, einer wirkungsvollen Schadstoffaustoss Reduzierung. Dies ist besonders interessant für ältere Motorsysteme die auch nur über eingeschränkte Regelmechanismen verfügen. The advantage over other systems now lies in the only slightly changed entry point position of the valves to that of the original entry point. This results in the possibility, within the usual tolerance values of the control characteristics of an engine control, an effective Schadstoffaustoss reduction. This is particularly interesting for older engine systems which have only limited control mechanisms.
Die Zeichnung zeigt eine vereinfachte Darstellung der Vorrichtung als Adapter dargestelltThe drawing shows a simplified representation of the device shown as an adapter
Die obere Zeichnung (Figur 1) zeigt einen Einspeisepunkt (6) mit einem Primärventil (4) ohne Anwendung des Verfahren bzw. der Vorrichtung.The upper drawing (Figure 1) shows a feed point (6) with a primary valve (4) without application of the method or the device.
Die mittlere Zeichnung (Figur 2) zeigt einen Einspeisepunkt(6) mit einer Vorrichtung (1) als Doppelventilanordnung mit einem Primärventil (4) und einem Sekundärventil (5).The middle drawing (Figure 2) shows a feed point (6) with a device (1) as a double valve arrangement with a primary valve (4) and a secondary valve (5).
Die untere Zeichnung (Figur 3) zeigt eine Vorrichtung (1) als Adapter zur Aufnahme der Ventile 4 und 5. Dargestellt sind der Hauptströmungskanal (2) als direkter Durchlass zum Einspeisepunkt und ein Nebenströmungskanal (3) der tangential in den Hauptströmungskanal (2) einmündender The lower drawing (Figure 3) shows a device (1) as an adapter for receiving the valves 4 and 5. Shown are the main flow channel (2) as a direct passage to the feed point and a secondary flow channel (3) of the tangentially into the main flow channel (2) opening

Claims

Ansprüche claims
1. Verfahren zum Betrieb eines Verbrennungsmotors, dadurch gekennzeichnet, dass zusammen mit einem Primärtreibstoff oder statt eines solchen ein Sekundärtreibstoff dem Motoreinspeisepunkt direkt zugeführt wird.1. A method for operating an internal combustion engine, characterized in that, together with a primary fuel or instead of such a secondary fuel to the motor feed point is fed directly.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der Primärtreibstoff Benzin, Diesel oder ein anderer fossiler Brennstoff ist.2. The method according to claim 1, characterized in that the primary fuel is gasoline, diesel or another fossil fuel.
3. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der Sekundärtreibstoff Wasserstoff oder Methangas ist.3. The method according to claim 1, characterized in that the secondary fuel is hydrogen or methane gas.
4. Vorrichtung zur Durchführung des Verfahrens nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass an dem Einspeisepunkt eines Verbrennungsmotors eine Doppelventilanordnung vorgesehen ist, durch deren einen Ventilanschluss ein Primärtreibstoff und durch deren anderen Ventilanschluss ein Sekundärtreibstoff zuführbar ist, wobei die Ventile einzeln und/oder zusammen betätigbar sind.4. A device for carrying out the method according to any one of the preceding claims, characterized in that at the feed point of an internal combustion engine, a double valve arrangement is provided, through which a valve port, a primary fuel and through the other valve port, a secondary fuel can be supplied, wherein the valves individually and / or are operable together.
5. Vorrichtung nach Anspruch 4,l dadurch gekennzeichnet, dass die Ventilanordnung als Austauschadapter ausgebildet ist.5. Apparatus according to claim 4, l characterized in that the valve arrangement is designed as a replacement adapter.
6. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Ventil für die Zuführung zum Einspeisepunkt des Primärtreibstoffes in einen Hauptströmungskanal mündet, während das Ventil für die Zuführung des Sekundärtreibstoffes über einen Nebenströmungskanal an den Hauptströmungskanal angeschlossen ist.6. Device according to one of the preceding claims, characterized in that the valve for feeding to the feed point of the primary fuel opens into a main flow channel, while the valve for the supply of the secondary fuel is connected via a bypass duct to the main flow channel.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Nebenströmungskanal im Wesentlichen tangential in den Hauptströmungskanal einmündet. 7. Apparatus according to claim 6, characterized in that the secondary flow channel opens substantially tangentially into the main flow channel.
PCT/DE2006/000290 2005-02-18 2006-02-14 Device and method for supplying a secondary fuel to a fuel-driven or internal combustion engine WO2006086971A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202005003180 2005-02-18
DE202005003180.1 2005-02-18
DE102005052285A DE102005052285A1 (en) 2005-02-18 2005-10-28 Method and device for operating an internal combustion engine
DE102005052285.8 2005-10-28

Publications (1)

Publication Number Publication Date
WO2006086971A1 true WO2006086971A1 (en) 2006-08-24

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WO (1) WO2006086971A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243176A1 (en) * 1982-11-23 1984-05-24 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln INJECTION DEVICE FOR ALCOHOL FUELS, ESPECIALLY FOR DIRECT INJECTING DIESEL ENGINES
EP0725208A1 (en) * 1995-02-03 1996-08-07 CENTRO RICERCHE FIAT Società Consortile per Azioni Internal combustion engine adapted to operate selectively with injection of gasoline or LPG
DE69600267T2 (en) 1996-02-16 1998-08-27 Fiat Ricerche Internal combustion engine with methane injection system
US6367443B1 (en) * 1997-10-24 2002-04-09 C.R.F. SOCIETá CONSORTILE PER AZIONI Controlling the injection in a fuel injection system selectively operable with petrol or fuel gas
US6382182B1 (en) * 1999-07-30 2002-05-07 Gfi Control Systems Inc. Fuel injector adaptor for conversion of single engines to dual fuel engines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243176A1 (en) * 1982-11-23 1984-05-24 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln INJECTION DEVICE FOR ALCOHOL FUELS, ESPECIALLY FOR DIRECT INJECTING DIESEL ENGINES
EP0725208A1 (en) * 1995-02-03 1996-08-07 CENTRO RICERCHE FIAT Società Consortile per Azioni Internal combustion engine adapted to operate selectively with injection of gasoline or LPG
DE69600267T2 (en) 1996-02-16 1998-08-27 Fiat Ricerche Internal combustion engine with methane injection system
US6367443B1 (en) * 1997-10-24 2002-04-09 C.R.F. SOCIETá CONSORTILE PER AZIONI Controlling the injection in a fuel injection system selectively operable with petrol or fuel gas
US6382182B1 (en) * 1999-07-30 2002-05-07 Gfi Control Systems Inc. Fuel injector adaptor for conversion of single engines to dual fuel engines

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