DE102005052285A1 - Method and device for operating an internal combustion engine - Google Patents

Method and device for operating an internal combustion engine Download PDF

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Publication number
DE102005052285A1
DE102005052285A1 DE102005052285A DE102005052285A DE102005052285A1 DE 102005052285 A1 DE102005052285 A1 DE 102005052285A1 DE 102005052285 A DE102005052285 A DE 102005052285A DE 102005052285 A DE102005052285 A DE 102005052285A DE 102005052285 A1 DE102005052285 A1 DE 102005052285A1
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DE
Germany
Prior art keywords
valve
primary fuel
combustion engine
internal combustion
hydrogen
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.)
Ceased
Application number
DE102005052285A
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German (de)
Inventor
Klaus Peter Broeker
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.)
Broeker Klaus Peter Dipl-Ing
Original Assignee
Broeker Klaus Peter Dipl-Ing
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 Broeker Klaus Peter Dipl-Ing filed Critical Broeker Klaus Peter Dipl-Ing
Priority to DE102005052285A priority Critical patent/DE102005052285A1/en
Priority to PCT/DE2006/000290 priority patent/WO2006086971A1/en
Publication of DE102005052285A1 publication Critical patent/DE102005052285A1/en
Ceased legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248Injectors
    • F02M21/0281Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/0639Controlling 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
    • F02D19/0642Controlling 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/066Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/0663Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0686Injectors
    • F02D19/0692Arrangement of multiple injectors per combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/08Controlling 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
    • F02D19/081Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M43/00Fuel-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
    • F02M43/04Injectors peculiar thereto
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14Arrangements of injectors with respect to engines; Mounting of injectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/44Valves, e.g. injectors, with valve bodies arranged side-by-side
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Betrieb eines Verbrennungsmotors für Kraftfahrzeuge, wobei zusammen mit einem Primärtreibstoff oder statt eines solchen Wasserstoff dem Verbrennungsraum direkt zugeführt wird.The invention relates to a method and a device for operating an internal combustion engine for motor vehicles, wherein the combustion chamber is fed directly together with a primary fuel or instead of such hydrogen.

Description

Die Erfindung betrifft ein Verfahren zum Betrieb eines Verbrennungsmotors für Kraftfahrzeuge sowie eine Vorrichtung zur Durchführung des Verfahrens.The The invention relates to a method for operating an internal combustion engine for motor vehicles as well a device for carrying out of the procedure.

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 the 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.A Such an arrangement is fluidic View unfavorable.

Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zu schaffen, das bzw. die eine verbesserte Einspeisung eines Zusatzbrennstoffes ermöglicht und andererseits den Wirkungsgrad des Verbrennungsmotors unter Berücksichtigung eines variablen Treibstoff Einsatzes verbessert.task the invention is to provide a method and a device the one or the improved feed of an additional fuel allows and On the other hand, the efficiency of the internal combustion engine under consideration a variable fuel use improved.

Hierzu wird erfindungsgemäß neben oder statt des Primärtreibstoffes ein zusätzlicher Treibstoff eingesetzt, und zwar Wasserstoff.For this is in accordance with the invention or instead of the primary fuel an additional one Fuel used, namely hydrogen.

Als Primärtreibstoff kommen hier Benzin oder Dieseltreibstoff in Frage.When primary fuel come here gasoline or diesel fuel in question.

Verglichen mit der relativ problemlosen Handhabung dieser Treibstoffe stellt der Einsatz von Wasserstoff sich erheblich problematischer dar.Compared with the relatively problem-free handling of these fuels the use of hydrogen is much more problematic.

Wesentlich ist dabei die hohe Flüchtigkeit des Wasserstoffgases, und zwar auch unter dem Gesichtspunkt der Mischungsmöglichkeit des flüssigen Treibstoffes mit Wasserstoff, wenn dieser beigemengt eingesetzt werden soll.Essential is the high volatility of the Hydrogen gas, and indeed from the point of view of the possibility of mixing of the liquid fuel with hydrogen, if this is added to be used.

Konstruktiv wichtig ist bei der Lösung dieser Probleme, dass ein Mehrfachventil in den Ansaugkanal eingesetzt ist. Vorzugsweise handelt es sich dabei um ein Doppelventil. Bei einem Doppelventil, also der Einspeisungsmöglichkeit von zwei Stoffen ergibt sich somit, dass einer dieser Stoffe – in diesem Fall der Primärtreibstoff – direkt in den Ansaugkanal zum Verbrennungsraum geführt wird, das Ventil ist somit mit einem Durchlass quasi Bestandteil des Ansaugkanals und wird als Hauptströmungskanal bezeichnetconstructive important in the solution These problems that a multiple valve used in the intake is. Preferably, this is a double valve. at a double valve, so the possibility of feeding two substances Thus it follows that one of these substances - in this case the primary fuel - is direct is guided into the intake passage to the combustion chamber, the valve is thus with a passage quasi part of the intake duct and is called Main flow channel designated

Das zweite Ventil mündet mit einem Nebenströmungskanal in diesen Ansaugkanal ein, wobei es von besonderer Bedeutung ist, dass die Einmündung im Wesentlichen tangential erfolgt.The second valve opens with a bypass duct into this intake channel, where it is of particular importance that the confluence in Essentially tangential occurs.

Durch spezielle Oberflächenkonstruktionen oder- formen sowie die Oberflächengüte, insbesondere der Innenwandung des Nebenströmungskanals, können die Einströmstrukturen und -formen beeinflusst und optimiert werden.By special surface constructions or shapes and the surface quality, in particular the inner wall of the bypass duct, the Einströmstrukturen and shapes are influenced and optimized.

Das Ventil kann nun sowohl als solches benutzt werden, d.h. bei einem Doppelventil zur Zuführung von zwei Treibstoffen dienen oder es kann wahlweise auch nur ein Treibstoff für den Antrieb des Verbrennungsmotors eingespeist werden.The Valve can now be used both as such, i. at a Double valve for feeding Serve of two fuels or it may optionally only one Fuel for be fed to the drive of the internal combustion engine.

Ein Treibstoff heißt in diesem Fall, für den Antrieb wird entweder der übliche Primärtreibstoff Benzin oder Diesel verwendet, oder aber, der Verbrennungsmotor wird zusätzlich mit Wasserstoff oder ausschließlich mit diesem angetrieben.One Fuel is called in this case, for the drive is either the usual Primary fuel gasoline or diesel used, or else, the internal combustion engine is additionally with Hydrogen or exclusively powered by this.

Durch die im Wesentlichen tangentiale Einspeisung des Wasserstoffs erfolgt eine sehr gute Vermischung mit dem Primärtreibstoff.By the substantially tangential feed of the hydrogen takes place a very good mixing with the primary fuel.

Wird andererseits an Stelle des üblichen Primärtreibstoffes nur Wasserstoff für die Verbrennung eingesetzt, so kann die Umstellung ebenfalls ohne Schwierigkeiten erfolgen, weil die Ventilanordnung unverändert bleibt und die tangentiale Zuführung des Wasserstoffgases strömungsmäßig optimal ist.Becomes on the other hand, instead of the usual primary fuel only hydrogen for the combustion used, the conversion can also without difficulty take place because the valve assembly remains unchanged and the tangential feed the hydrogen gas is optimally fluid is.

Die Zeichnung zeigt eine vereinfachte Darstellung eines als Adapter ausgebildeten Doppelventils.The Drawing shows a simplified representation of an adapter trained double valve.

In der linken Teilansicht ist der Adapter als Ventilkörper 1 dargestellt. Bei diesem ist der direkte Durchlass der Hauptströmungskanal 2, der an der linken Seite in den Ansaugkanal – der zum Verbrennungsraum führt – übergeht. In diesen mündet der Nebenströmungskanal 3 ein.In the left partial view, the adapter is as a valve body 1 shown. In this case, the direct passage is the main flow channel 2 , which merges on the left side into the intake duct - which leads to the combustion chamber. In these opens the bypass duct 3 one.

Bei der rechten Teildarstellung sind in diesen Ventilkörper 1 die Ventile 4 und 5 eingesetzt.In the right partial view are in this valve body 1 the valves 4 and 5 used.

Claims (7)

Verfahren zum Betrieb eines Verbrennungsmotor für Kraftfahrzeuge, dadurch gekennzeichnet, dass zusammen mit einem Primärtreibstoff oder statt eines solchen Wasserstoff dem Verbrennungsraum direkt zugeführt wird.Method for operating an internal combustion engine for motor vehicles, characterized in that is supplied directly to the combustion chamber together with a primary fuel or instead of such hydrogen. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Primärtreibstoff Benzin mit normaler oder hoher Oktanzahl ist.Method according to claim 1, characterized in that that the primary fuel Is normal or high octane gasoline. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Primärtreibstoff Dieselkraftstoff ist.A method according to claim 1, characterized gekenn records that the primary fuel is diesel fuel. Vorrichtung zur Durchführung des Verfahrens nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass in dem Ansaugkanal eines Verbrennungsmotors eine Mehrtachventilanordnung, insbesondere Doppelventilanordnung vorgesehen ist, durch deren einen Ventilanschluss ein Primärtreibstoff und durch deren anderen Ventilanschluss Wasserstoff zuführbar ist, wobei die Ventile einzeln und/oder zusammen betätigbar sind.Apparatus for carrying out the method according to one the preceding claims, characterized in that in the intake passage of an internal combustion engine a multi-valve arrangement, in particular double valve arrangement is provided, through whose one valve connection a primary fuel and through whose other valve connection hydrogen can be supplied, wherein the valves are actuated individually and / or together. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Ventilanordnung als Austauschadapter ausgebildet ist.Device according to claim 4, characterized in that that the valve arrangement is designed as an exchange adapter. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Ventil für die Zuführung des Primärtreibstoffes in einen Hauptströmungskanal mündet, während das Ventil für die Zuführung von Wasserstoff an einen in den Hauptströmungskanal mündenden Nebenströmungskanal angeschlossen ist.Device according to one of the preceding claims, characterized characterized in that the valve for the supply of the primary fuel into a main flow channel opens while the valve for the feeder from hydrogen to an opening into the main flow channel Auxiliary channel connected. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Nebenströmungskanal im Wesentlichen tangential in den Hauptströmungskanal einmündet.Device according to claim 6, characterized in that that the bypass duct essentially tangentially opens into the main flow channel.
DE102005052285A 2005-02-18 2005-10-28 Method and device for operating an internal combustion engine Ceased DE102005052285A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102005052285A DE102005052285A1 (en) 2005-02-18 2005-10-28 Method and device for operating an internal combustion engine
PCT/DE2006/000290 WO2006086971A1 (en) 2005-02-18 2006-02-14 Device and method for supplying a secondary fuel to a fuel-driven or internal combustion engine

Applications Claiming Priority (3)

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

Publications (1)

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DE102005052285A1 true DE102005052285A1 (en) 2006-08-31

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DE102005052285A Ceased DE102005052285A1 (en) 2005-02-18 2005-10-28 Method and device for operating an internal combustion engine

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WO (1) WO2006086971A1 (en)

Family Cites Families (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
EP0725208B1 (en) * 1995-02-03 1997-07-09 CENTRO RICERCHE FIAT Società Consortile per Azioni Internal combustion engine adapted to operate selectively with injection of gasoline or LPG
EP0801223B1 (en) 1996-02-16 1998-04-29 CENTRO RICERCHE FIAT Società Consortile per Azioni Internal combustion engine with methane injection system
IT1295770B1 (en) * 1997-10-24 1999-05-27 Fiat Ricerche METHOD OF INJECTION CONTROL IN AN INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE SUITABLE TO OPERATE SELECTIVELY WITH
CA2279149C (en) * 1999-07-30 2003-04-22 James Mancuso Fuel injector adaptor for conversion of single fuel engines to dual fuel engines

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