DE10340160A1 - Method for controlling a high pressure fuel injection system as a common rail injection system and high pressure fuel injection system - Google Patents
Method for controlling a high pressure fuel injection system as a common rail injection system and high pressure fuel injection system Download PDFInfo
- Publication number
- DE10340160A1 DE10340160A1 DE2003140160 DE10340160A DE10340160A1 DE 10340160 A1 DE10340160 A1 DE 10340160A1 DE 2003140160 DE2003140160 DE 2003140160 DE 10340160 A DE10340160 A DE 10340160A DE 10340160 A1 DE10340160 A1 DE 10340160A1
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- Germany
- Prior art keywords
- fuel
- pressure
- injection system
- injection
- heating element
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/02—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means with fuel-heating means, e.g. for vaporising
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
-
- 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
- F02M2200/60—Fuel-injection apparatus having means for facilitating the starting of engines, e.g. with valves or fuel passages for keeping residual pressure in common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Steuerung eines Kraftstoff-Hochdruckeinspritzsystems (1) einer Brennkraftmaschine (2), wobei das Kraftstoff-Hochdruckeinspritzsystem (1) wenigstens einen Kraftstoff-Hochdruckspeicher als Kraftstoff-Rail (3) aufweist. Kraftstoff wird dabei mit einer motormechanisch gekoppelten Kraftstoff-Hochdruckpumpe (4) in den Kraftstoff-Rail (3) gefördert, der von dort gesteuert jeweils einem Zylinder zugeordneten Einspritzventil (10) zugeführt wird. Wenigstens ein steuerbares Heizelement (12) ist im Kraftstoff-Hochdruckspeicher (3) zur steuerbaren Erwärmung des Kraftstoffs angeordnet. Erfindungsgemäß wird zum Brennkraftmaschinenstart vor dem Brennkraftmaschinenanlauf bei noch nicht laufender Kraftstoff-Hochdruckpumpe (4) der Kraftstoff im hermetisch geschlossenen Raum des Kraftstoff-Hochdruckspeichers (3) mittels des wenigstens einen Heizelements (12) für einen thermischen Druckaufbau im Kraftstoff vorerwärmt und anschließend wird der Brennkraftmaschinenanlauf aktiviert. Mittels dem Kraftstoff-Hochdruckeinspritzsystem (1) als Common-Rail-Einspritzsystem ist das erfindungsgemäße Verfahren durchführbar.The invention relates to a method for controlling a high-pressure fuel injection system (1) of an internal combustion engine (2), wherein the high-pressure fuel injection system (1) has at least one fuel high-pressure accumulator as a fuel rail (3). In this case, fuel is delivered to the fuel rail (3) with a motor-mechanically coupled high-pressure fuel pump (4), which is fed from there to a respective injection valve (10) assigned to a cylinder. At least one controllable heating element (12) is arranged in the fuel high-pressure accumulator (3) for the controllable heating of the fuel. According to the invention, the fuel in the hermetically sealed space of the fuel high-pressure accumulator (3) by means of the at least one heating element (12) preheated for a thermal pressure build-up in the fuel and then the engine start-up before the engine startup at not running fuel high-pressure pump (4) activated. By means of the high pressure fuel injection system (1) as a common rail injection system, the inventive method is feasible.
Description
Die Erfindung betrifft ein Verfahren zur Steuerung eines Kraftstoff-Hochdruckeinspritzsystems als Common-Rail Einspritzsystem nach dem Oberbegriff des Anspruchs 1 sowie ein Kraftstoff-Hochdruckeinspritzsystem als Common-Rail Einspritzsystem nach dem Oberbegriff des Anspruchs 6.The The invention relates to a method for controlling a high-pressure fuel injection system Common rail injection system according to the preamble of claim 1 and a high pressure fuel injection system as a common rail injection system the preamble of claim 6.
In einer bekannten Anordnung (US Statutory Invention Registration H1,820) ist an einer Mehrzylinder-Brennkraftmaschine ein Kraftstoff-Hochdruckspeicher als Kraftstoff-Rail angebracht. Der Kraftstoff-Hochdruckspeicher ist einerseits mit einer in üblicher Weise motormechanisch gekoppelten Kraftstoff-Hochdruckpumpe verbunden und andererseits über Einspritzleitungen mit den Zylindern zugeordneten, steuerbaren Einspritzventilen hydraulisch verbunden. Zudem sind im Kraftstoff-Hochdruckspeicher ein steuerbares elektrisches Heizelement sowie ein Temperatursensor angebracht, welcher an eine Steuereinheit zur Steuerung des Heizelements angeschlossen ist.In a known arrangement (US Statutory Invention Registration H1,820) is on a multi-cylinder internal combustion engine, a high-pressure fuel storage attached as a fuel rail. The fuel high-pressure accumulator is on the one hand with one in usual Way motor mechanically coupled fuel high-pressure pump connected and then again Injection lines with the cylinders associated, controllable injectors hydraulically connected. In addition, in the fuel high-pressure accumulator a controllable electrical heating element and a temperature sensor attached, which to a control unit for controlling the heating element connected.
Das Heizelement wird hier bei niedrigen Umgebungstemperaturen während der Warmlaufphase der Brennkraftmaschine aktiviert, um durch eine Temperaturerhöhung des Kraftstoffs dessen Viskosität zu reduzieren. Damit können das Einspritzverhalten und die Verbrennung verbessert werden, was in der Warmlaufphase der Brennkraftmaschine zu höherer Motorleistung und qualitativ verbesserten Abgasen führen kann.The Heating element is used here at low ambient temperatures during the Warm-up phase of the internal combustion engine is activated to a temperature increase of Fuel's viscosity to reduce. With that you can the injection behavior and the combustion are improved, what in the warm-up phase of the engine to higher engine power and quality lead to improved exhaust gases can.
Problematisch ist sowohl bei einer solchen Anordnung als auch bei Common-Rail Einspritzsystemen ohne Heizelement im Kraftstoff-Rail der Start der Brennkraftmaschine insbesondere bei tiefen Umgebungstemperaturen: Die Brennkraftmaschine kann ersichtlich nur anspringen, wenn im Kraftstoff-Hochdruckspeicher, d. h. im Kraftstoff-Rail der Kraftstoff-Hochdruck aufgebaut ist. Dazu muss die motormechanisch gekoppelt angetriebene Kraftstoff-Hochdruckpumpe durch eine Ansteuerung des elektrischen Anlassers und einen Motoranlauf über eine bestimmte Zeit aktiviert werden, bis der erforderliche Hochdruck erreicht ist. Diese Vorlaufzeit vor dem Anspringen der Brennkraftmaschine zum Druckaufbau mit Hilfe der motormechanisch gekoppelten Kraftstoff-Hochdruckpumpe war bisher zwangsläufig erforderlich, wobei das Anspringverhalten bei tiefen Temperaturen durch hohe Kraftstoffviskositäten in bekannter Weise ohnehin problematisch ist.Problematic is both in such an arrangement as well as common-rail injection systems without heating element in the fuel rail the start of the internal combustion engine especially at low ambient temperatures: the internal combustion engine can obviously only start when in high-pressure fuel storage, d. H. in the fuel rail the fuel high pressure is built up. For this purpose, the engine mechanically coupled driven high-pressure fuel pump by a control of the electric starter and a motor start via a certain time to be activated until the required high pressure is reached. This lead time before the start of the internal combustion engine for pressure build-up with the aid of the engine mechanically coupled high-pressure fuel pump was previously inevitable required, with the light-off at low temperatures through high fuel viscosities in a known way is problematic anyway.
Bei
einer weiter bekannten Brennkraftmaschine mit einem Common-Rail
Einspritzsystem (
Aufgabe der Erfindung ist es ein Verfahren und ein Kraftstoff-Hochdruckeinspritzsystem als Common-Rail Einspritzsystem zur Verfügung zu stellen, womit ein vereinfachter und besserer Brennkraftmaschinenstart ermöglicht wird. Diese Aufgabe wird hinsichtlich des Verfahrens mit den Merkmalen des Anspruchs 1 gelöst.task The invention is a method and a high-pressure fuel injection system as a common-rail injection system to provide, with a Simplified and better engine start possible. This object is achieved with regard to the method with the features of claim 1.
Gemäß Anspruch 1 wird zum Brennkraftmaschinenstart vor dem Brennkraftmaschinenanlauf bei noch nicht angelaufener Brennkraftmaschine und damit noch nicht laufender Kraftstoff-Hochdruckpumpe der Kraftstoff im hermetisch geschlossenen Raum des Kraftstoff-Hochdruckspeichers mittels des wenigstens einen Heizelements für einen thermischen Druckaufbau im Kraftstoff vorerwärmt und vorgeheizt. Anschließend wird dann der Brennkraftmaschinenanlauf aktiviert. Damit werden bereits vor dem Anlauf der Brennkraftmaschine optimale Bedingungen für einen Brennkraftmaschinenstart im Kraftstoff-Hochdruckspeicher hergestellt, in dem eine thermische Druckerhöhung aufgebaut wird. Diese Druckerhöhung muss nicht wie bisher durch einen ungünstigen Brennkraftmaschinenvorlauf und einen Anlauf der motormechanisch gekoppelten Kraftstoff-Hochdruckpumpe vor dem Anspringen der Brennkraftmaschine herbeigeführt werden. Zudem wird durch die Aufheizung des Kraftstoffs dessen Viskosität schon vor der ersten Einspritzung reduziert, so dass bereits bei der ersten Einspritzung durch hohen Kraftstoffdruck und vorgeheizten Kraftstoff optimierte Verbrennungsverhältnisse vorliegen. Dadurch springt die Brennkraftmaschine beim Start sofort auch bei tiefen Umgebungstemperaturen an mit sofortiger guter Motorleistung und guter Abgasqualität.According to claim 1 becomes the engine start before the engine startup not yet started up internal combustion engine and thus not yet hermetically running fuel high pressure pump the fuel closed space of high-pressure fuel storage by means of at least one heating element for preheated a thermal pressure buildup in the fuel and preheated. Subsequently then the engine start is activated. With that even before the start of the engine optimal conditions for one Engine start in high-pressure fuel storage produced in the a thermal pressure increase is built. This pressure increase does not have to be like before due to an unfavorable internal combustion engine flow and a start of the engine mechanically coupled high-pressure fuel pump be brought about before the start of the internal combustion engine. In addition, by the heating of the fuel whose viscosity is already reduced before the first injection, so that already at the first Injection by high fuel pressure and preheated fuel optimized combustion conditions available. As a result, the internal combustion engine jumps immediately at startup at low ambient temperatures with immediate good engine performance and good exhaust quality.
Gemäß Anspruch 2 soll nach der Kraftstoff-Vorerwärmung der Brennkraftmaschinenanlauf und -start durch eine Ansteuerung des elektrischen Anlassers und einer entsprechenden Einspritzventilansteuerung erfolgen. Da durch die Kraftstoff-Vorerwärmung der Hochdruckaufbau im Kraftstoff erfolgt ist und insbesondere bei tiefen Temperaturen die Viskosität des Kraftstoffs reduziert ist, kann bei guten Startverhalten der elektrische Anlasser vergleichsweise weniger stark dimensioniert werden, was zu Gewichts- und Kostenvorteilen führt.According to claim 2 is after the fuel preheating the engine start and Start by a control of the electric starter and a corresponding injection valve control done. Because of the Fuel preheating the high pressure build-up in the fuel has taken place and in particular at low temperatures the viscosity the fuel is reduced, with good starting behavior of the Electric starter comparatively less dimensioned which leads to weight and cost advantages.
Gemäß Anspruch 3 ist es in einer besonders bevorzugten Ausführung gegebenenfalls auch möglich auf den elektrischen Anlasser ganz zu verzichten und den Brennkraftmaschinenstart ausschließlich durch Ansteuerung der Einspritzventile nach der Kraftstoff-Verwärmung durchzuführen. Durch die mittels der Kraftstoff-Vorerwärmung optimale Startvorbereitung kann die Brennkraftmaschine ohne zusätzliche Anlasserhilfe sofort anspringen.According to claim 3, it is possibly also possible in a particularly preferred embodiment completely dispense with the electric starter and the engine start exclusively by Activation of the injectors after the fuel has been quenched. By the optimal start preparation by means of the fuel preheating can the engine without additional starter help immediately start an engine.
Um sicherzustellen, dass während der Kraftstoff-Vorerwärmung der Kraftstoff-Hochdruckspeicher für den Hochdruckaufbau sicher hermetisch geschlossen ist und kein Druckverlust gegebenenfalls über die (noch nicht laufende) Kraftstoff-Hochdruckpumpe erfolgt soll gemäß Anspruch 4 dieser in der Verbindung zur Kraftstoff-Rail ein steuerbares Absperrventil und/oder ein Rückschlagventil zugeordnet werden.Around make sure while the fuel preheating the high-pressure fuel storage for the High-pressure construction is securely closed hermetically and no pressure loss optionally via the (not yet running) high-pressure fuel pump is to be made according to claim 4 of these in connection with the fuel rail, a controllable shut-off valve and / or a check valve be assigned.
Gemäß Anspruch 5 wird bei einem Startvorgang ein Startbetätigungselement, insbesondere ein Zündschlüssel betätigt, wodurch zuerst während der Kraftstoffvorheizzeit das wenigstens eine Heizelement angesteuert wird. Danach werden der Anlasser und/oder die Einspritzventile über die Steuereinheit selbsttätig angesteuert. Das Ende der Aufheizzeit kann dabei zeitgesteuert oder in Abhängigkeit vorgebbarer Schwellwerte für die Kraftstofftemperatur und/oder den Kraftstoffdruck gesteuert werden.According to claim 5 is at a startup operation, a start operation element, in particular an ignition key is actuated, causing first during the fuel preheating the at least one heating element driven becomes. Thereafter, the starter and / or the injection valves on the Control unit automatically driven. The end of the heating time can be timed or dependent on predefinable thresholds for controlling the fuel temperature and / or the fuel pressure become.
Die erfindungsgemäße Aufgabe wird hinsichtlich des Kraftstoffhochdruckeinspritzsystems als Common-Rail Einspritzsystem mit den Merkmalen des Anspruchs 6 gelöst, wobei die weiteren Unteransprüche zweckmäßige Weiterbildungen beinhalten.The inventive task becomes common rail with respect to the high-pressure fuel injection system Injection system solved with the features of claim 6, wherein the further subclaims appropriate training include.
Anhand einer Zeichnung wird die Erfindung näher erläutert.Based a drawing, the invention is explained in detail.
Es zeigen:It demonstrate:
In
Jeden
Zylinder der Brennkraftmaschine
Des
weiteren sind an der Kraftstoff-Rail
In
Bei
dem erfindungsgemäßen Verfahren
wird zum Brennkraftmaschinenstart vor dem Brennkraftmaschinenanlauf
der Kraftstoff im hermetisch geschlossenen Raum des Kraftstoff-Hochdruckspeichers
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003140160 DE10340160B4 (en) | 2003-09-01 | 2003-09-01 | Method for controlling a high pressure fuel injection system as a common rail injection system and high pressure fuel injection system |
PCT/EP2004/009602 WO2005024224A1 (en) | 2003-09-01 | 2004-08-28 | Method for controlling a fuel high-pressure injection system serving as a common rail injection system, and a fuel high-pressure injection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003140160 DE10340160B4 (en) | 2003-09-01 | 2003-09-01 | Method for controlling a high pressure fuel injection system as a common rail injection system and high pressure fuel injection system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10340160A1 true DE10340160A1 (en) | 2005-04-07 |
DE10340160B4 DE10340160B4 (en) | 2013-08-01 |
Family
ID=34258306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003140160 Expired - Fee Related DE10340160B4 (en) | 2003-09-01 | 2003-09-01 | Method for controlling a high pressure fuel injection system as a common rail injection system and high pressure fuel injection system |
Country Status (2)
Country | Link |
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DE (1) | DE10340160B4 (en) |
WO (1) | WO2005024224A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020107988A1 (en) | 2020-03-24 | 2021-09-30 | Bayerische Motoren Werke Aktiengesellschaft | System and method for preheating a fuel in an internal combustion engine of a motor vehicle |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0504047C1 (en) | 2005-09-12 | 2007-07-31 | Fiat Automoveis Sa | cold start auxiliary system for alcohol and flex engines with inlet air and alcohol heating |
DE602008004642D1 (en) | 2008-07-03 | 2011-03-03 | Continental Automotive Gmbh | Liquid injection arrangement |
DE102014215433A1 (en) * | 2014-08-05 | 2016-02-11 | Mahle International Gmbh | Starting method for an internal combustion engine |
CN104405549B (en) * | 2014-09-28 | 2017-09-29 | 长城汽车股份有限公司 | Engine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2846995A (en) * | 1957-04-08 | 1958-08-12 | United Aircraft Prod | Engine starting system |
DE3919589C1 (en) * | 1989-06-15 | 1990-05-10 | Georg 8227 Siegsdorf De Koch-Theinl | Diesel motor fuel transport arrangement - has viscosity measuring appts. between fuel injection and delivery pumps and switches on heaters according to viscosity-dependent temp. |
DE19714488C1 (en) * | 1997-04-08 | 1998-09-03 | Siemens Ag | Fuel injection system for IC engine, particularly diesel engine |
USH1820H (en) * | 1998-12-22 | 1999-12-07 | Caterpillar Inc. | Method for heating actuating fluid in a fuel system |
DE19949812A1 (en) * | 1999-10-15 | 2001-04-19 | Daimler Chrysler Ag | Procedure for operation of common rail IC engine has by supply of thermal energy, temperature of fuel increased above boiling point of fuel when piston is at TDC |
DE10045753A1 (en) * | 2000-09-15 | 2002-03-28 | Daimler Chrysler Ag | Heating device for preheating IC engine intake air, has housing with a cylindrical portion provided with slits along the flow direction of suction air and the transition region leading to the base |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4665881A (en) * | 1981-12-28 | 1987-05-19 | Ford Motor Company | Heated fuel injection system |
JPH08338339A (en) * | 1995-06-15 | 1996-12-24 | Isuzu Motors Ltd | Diesel engine |
DE19918227B4 (en) * | 1999-04-22 | 2006-04-06 | Daimlerchrysler Ag | Otto-direct-injection engine |
-
2003
- 2003-09-01 DE DE2003140160 patent/DE10340160B4/en not_active Expired - Fee Related
-
2004
- 2004-08-28 WO PCT/EP2004/009602 patent/WO2005024224A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2846995A (en) * | 1957-04-08 | 1958-08-12 | United Aircraft Prod | Engine starting system |
DE3919589C1 (en) * | 1989-06-15 | 1990-05-10 | Georg 8227 Siegsdorf De Koch-Theinl | Diesel motor fuel transport arrangement - has viscosity measuring appts. between fuel injection and delivery pumps and switches on heaters according to viscosity-dependent temp. |
DE19714488C1 (en) * | 1997-04-08 | 1998-09-03 | Siemens Ag | Fuel injection system for IC engine, particularly diesel engine |
USH1820H (en) * | 1998-12-22 | 1999-12-07 | Caterpillar Inc. | Method for heating actuating fluid in a fuel system |
DE19949812A1 (en) * | 1999-10-15 | 2001-04-19 | Daimler Chrysler Ag | Procedure for operation of common rail IC engine has by supply of thermal energy, temperature of fuel increased above boiling point of fuel when piston is at TDC |
DE10045753A1 (en) * | 2000-09-15 | 2002-03-28 | Daimler Chrysler Ag | Heating device for preheating IC engine intake air, has housing with a cylindrical portion provided with slits along the flow direction of suction air and the transition region leading to the base |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020107988A1 (en) | 2020-03-24 | 2021-09-30 | Bayerische Motoren Werke Aktiengesellschaft | System and method for preheating a fuel in an internal combustion engine of a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
WO2005024224A1 (en) | 2005-03-17 |
DE10340160B4 (en) | 2013-08-01 |
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