WO2004059160A1 - Kraftstoffversorgungssystem für verbrennungsmotoren mit direkteinspritzung - Google Patents
Kraftstoffversorgungssystem für verbrennungsmotoren mit direkteinspritzung Download PDFInfo
- Publication number
- WO2004059160A1 WO2004059160A1 PCT/EP2003/013069 EP0313069W WO2004059160A1 WO 2004059160 A1 WO2004059160 A1 WO 2004059160A1 EP 0313069 W EP0313069 W EP 0313069W WO 2004059160 A1 WO2004059160 A1 WO 2004059160A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- pump
- line
- hydraulic transmission
- pressure
- 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
Links
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
- 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
- F02M63/0275—Arrangement of common rails
- F02M63/028—Returnless common rail system
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/447—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine
-
- 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
-
- 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
- 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
Definitions
- the invention relates to a fuel supply system for internal combustion engines according to the preamble of claim 1 and a method for starting and operating internal combustion engines according to the preamble of claim 14.
- the electric pre-feed pump known from the prior art cannot generate the necessary fuel injection pressure.
- the necessary pressure is usually built up by a high-pressure pump sitting on the camshaft and is available after about 1 camshaft revolution, i.e. 2 crankshaft revolutions.
- Direct-injection engines cannot start optimally before the above-mentioned minimum fuel pressure is reached. This leads to relatively long start times and is particularly noticeable in start / stop operation. So that the minimum fuel injection pressure can be made available at an early stage, the use of pressure accumulators or electrically controllable high-pressure pumps is known from practice.
- DE 38 33 430 AI describes a fuel delivery system for internal combustion engines with a fuel pump driven by the internal combustion engine and a hydraulic pump. formed feed pump known, which is driven by returned fuel from the fuel pump.
- a pressure accumulator with compensation chamber is arranged between the lines connecting the fuel and the hydraulic pump.
- the fuel inflow from the hydraulic pump into the pressure accumulator is controlled by a valve which is opened when the compensation chamber of the pressure accumulator is empty and remains open for as long as the fuel inflows thereafter.
- the fuel returned via a pressure line is introduced into a chamber of the pressure accumulator between the valve and the hydraulic pump or line.
- DE 199 52 782 A1 discloses a system for reducing the aerosol in a fuel contained in a liquid storage state in a fuel storage unit, one for operating an internal combustion engine operating according to the common rail principle for fuel delivery in addition to a rail and a plurality Injectors, a fuel storage unit, which is connected via a line element with a fuel filter, a prefeed pump and a high pressure pump.
- the object of the invention is to provide a method or a fuel supply system for internal combustion engines with direct injection, with which the generation and maintenance of a fuel pressure required for injection in the start and standstill phases of the internal combustion engine is possible in a particularly simple manner.
- This object is achieved by a fuel supply system with the features of patent claim 1 and by a method with the features of patent claim 14.
- a pressure accumulator or an electrically controllable high-pressure pump for the early provision of the fuel injection pressure can be dispensed with.
- the delivery rate of the preliminary pump also known as EKP (electric fuel pump) is designed so that the internal combustion engine is supplied with sufficient fuel at full load and high speeds. Because only a fraction of the delivered fuel quantity is required at the start, it is possible to generate the fuel pressure at the start according to the invention by means of a standard pre-pump and a pressure increase stage, hereinafter referred to as hydraulic transmission.
- the high-pressure pump also known as the HDP, takes over the pressure build-up. It is advantageous here that there is neither a problem with gas bubbles in the intake line of the internal combustion engine nor an uneven application of fuel.
- the entire system can be provided more cost-effectively than conventional solutions.
- the method according to the invention and by dispensing with an electric high-pressure pump, it is also possible to achieve a higher overall energy efficiency than would have been achievable using an electric high-pressure pump.
- a fuel supply system for internal combustion engines with direct injection comprises a preliminary pump that sucks off a fuel tank, a high pressure pump and a parallel connection of a plurality of injectors or injection nozzles connected downstream of the high pressure pump.
- a hydraulic translation connected in parallel to the high-pressure pump is provided between the pre-supply pump and the plurality of injectors or injection nozzles, which in order to generate and maintain a high fuel pressure required for injection in the starting or shutdown Stance phases of the internal combustion engine is designed.
- the high fuel pressure required for injection can be generated and maintained in the starting or standstill phases of the internal combustion engine. This advantageously leads to a reduction in the starting time of the engine in these phases.
- the invention thus enables the internal combustion engine to be started quickly or directly. The process steps required for this are described in more detail in the following drawings.
- Fig. 1 shows a preferred embodiment of a fuel supply system according to the invention
- the fuel supply system 1 shown in FIG. 1 has a fuel tank 2 which is connected to a preliminary pump 4 or low-pressure pump, with a hydraulic transmission 9 or pressure increase stage and with a high-pressure pump 6.
- the preliminary pump 4 is connected on the input side to the fuel tank 2 via a line 3a, on the output side on the one hand via a line 3b to the hydraulic transmission 9 and on the other hand via a branch line 5a to the high-pressure pump 6.
- Fig.l also shows a high-pressure rail 11, with which the injectors 13 or injectors are connected in parallel.
- the high pressure pump 6 itself is connected via a line 5b, the hydraulic transmission 9 via a line 10 to the high pressure rail 11.
- a check valve 7 can also be arranged in the connecting line 5b of the outlet of the high-pressure pump 6 to the high-pressure rail 11.
- a first control valve 8 is provided in the connecting line 3b of the outlet of the preliminary pump 4 for the hydraulic transmission 9 downstream of the branch of the branch line 5a. Furthermore, a second control valve 15 is connected on the inlet side via a line 14a to a volume space 9b of the hydraulic transmission 9, on the outlet side it opens into the outlet side line 3b of the preliminary pump 4 via a line 14b. A third control valve 17 is connected on the input side via a line 16a to the volume space 9b of the hydraulic transmission 9 and on the output side via a return line 16b to the fuel tank 2.
- the fuel flow between the output of the preliminary pump 4 and the input side of the hydraulic transmission 9 is controlled by means of a first control valve 8.
- Fuel can be supplied to the outlet side of the preliminary pump 4 via a line 14 a, b and via a second control valve 15.
- fuel can be supplied to the fuel tank 2 via a line 16 a, b and a third control valve 17 from the volume space 9 b of the hydraulic transmission 9.
- the fuel injection pressure p 2 required for starting is generated via the hydraulic transmission 9.
- the first and third control valves 8, 17 are open and the second control valve 15 is closed.
- the pre-pump 4 delivers fuel via the opened valve 8 into the volume space 9a.
- the fuel pressure of the preliminary pump 4 with the pressure p x acts on the piston K 1 of the hydraulic transmission 9, which is loaded with a agreed piston surface AI includes the low-pressure volume space 9a, and pushes the piston Kl from position I to position II.
- the pressure force of the piston Kl acts on a second piston K2, which is connected to the first piston Kl and which has a specific piston surface A2 encloses the high pressure volume space 9c.
- the pressure p 2 is then greater than the pressure pi by the ratio A1 / A2.
- the high pressure pump is not in operation in this start phase.
- the high-pressure volume space 9c is connected to the high-pressure rail 11 via a line 10.
- the high-pressure pump which is mechanically driven on the camshaft, generates a pressure p 3 .
- the pressure p 3 building up on the outlet side of the high-pressure pump 6 propagates via the high-pressure rail 11 and via the line 10 into the volume space 9 c.
- FIG. 2 shows a variant of the fuel supply system according to the invention, the same reference numerals being used for functionally identical components for the sake of clarity and in this respect reference can be made to the above description of FIG. 1.
- the fuel supply system of FIG. 2 differs from that of FIG. 1 in that the hydraulic transmission 9 is integrated in the high pressure rail 11.
- an expansion tank 18 is connected via a line 19a to the volume space 9b of the hydraulic one Ratio 9 and the output side connected to the fuel tank 2 via a return line 19b.
- the expansion tank 18 can absorb excess fuel that has entered the volume space 9b of the hydraulic transmission 9, for example by leakage, from the volume space 9b of the hydraulic transmission 9 and, if necessary, return it to the fuel tank 2 via a return line 19b.
- a throttle valve 20 is provided in the connecting line 3b of the output of the preliminary pump 4 for hydraulic transmission 9 downstream of the branch of the branch line 5a and before the control valve 8.
- the pushing back of the piston can be adapted to the performance requirements of the internal combustion engine by means of a throttle 20.
- control valve A When starting, the valve 8 is open, the piston K1, K2 moves from position I to position II. At idle, the pressure p 3 that the high-pressure pump 6 generates is greater than the pressure p 2 that is generated by the hydraulic transmission ratio Piston K1, K2 changes its position from II to I. In order to prevent a pressure drop at the high pressure rail, the control valve 8 is then closed. In this case too, the process can be throttled by a throttle 20.
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
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03813879A EP1588045A1 (de) | 2002-12-23 | 2003-11-21 | Kraftstoffversorgungssystem für verbrennungsmotoren mit direkteinspritzung |
| US11/159,090 US7201128B2 (en) | 2002-12-23 | 2005-06-22 | Fuel supply system for internal combustion engine with direct fuel injection |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10260775.3 | 2002-12-23 | ||
| DE10260775A DE10260775A1 (de) | 2002-12-23 | 2002-12-23 | Kraftstoffversorgungssystem für Verbrennungsmotoren mit Direkteinspritzung |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/159,090 Continuation-In-Part US7201128B2 (en) | 2002-12-23 | 2005-06-22 | Fuel supply system for internal combustion engine with direct fuel injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004059160A1 true WO2004059160A1 (de) | 2004-07-15 |
Family
ID=32404224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/013069 Ceased WO2004059160A1 (de) | 2002-12-23 | 2003-11-21 | Kraftstoffversorgungssystem für verbrennungsmotoren mit direkteinspritzung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7201128B2 (de) |
| EP (1) | EP1588045A1 (de) |
| DE (1) | DE10260775A1 (de) |
| WO (1) | WO2004059160A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008135339A1 (de) * | 2007-05-07 | 2008-11-13 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem mit druckverstärkung |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006091392A1 (en) * | 2005-02-22 | 2006-08-31 | Siemens Vdo Automotive Corporation | Common rail system with pressure amplification |
| DE102005059831B3 (de) * | 2005-12-14 | 2007-06-21 | Siemens Ag | Hochdruckpumpe |
| DE102006037174A1 (de) * | 2006-08-09 | 2008-02-14 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Regelung eines Kraftstoffvolumenstroms in einem Niederdruckkreislaufsystem für eine Verbrennungskraftmaschine |
| US7448361B1 (en) * | 2007-10-23 | 2008-11-11 | Ford Global Technologies, Llc | Direct injection fuel system utilizing water hammer effect |
| DE102009029573A1 (de) * | 2009-09-18 | 2011-03-24 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem |
| DE102010002801A1 (de) * | 2010-03-12 | 2011-09-15 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem einer Brennkraftmaschine |
| DE102010064172A1 (de) * | 2010-12-27 | 2012-06-28 | Robert Bosch Gmbh | Hydraulischer Druckübersetzer |
| DE102011007352A1 (de) * | 2011-04-14 | 2012-10-18 | Robert Bosch Gmbh | Kraftstoffhochdruckpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
| WO2012171593A1 (en) * | 2011-06-14 | 2012-12-20 | Volvo Lastvagnar Ab | Fuel system and method for reducing fuel leakage from a fuel system |
| US20140048042A1 (en) * | 2011-08-15 | 2014-02-20 | Helpful Technologies, Inc | Method of fuel activation and system to deliver it to a diesel engine |
| CA2758246C (en) * | 2011-11-16 | 2013-02-12 | Westport Power Inc. | Method and apparatus for pumping fuel to a fuel injection system |
| DE102017213120A1 (de) | 2017-07-31 | 2019-01-31 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine mit einer Kraftstoffeinspritzung |
| JP2020143621A (ja) * | 2019-03-06 | 2020-09-10 | 本田技研工業株式会社 | 内燃機関の燃料供給構造 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028620A1 (de) * | 1997-11-29 | 1999-06-10 | Mannesmann Rexroth Ag | Schnellstart einer hochdruckpumpe mittels druckübersetzungskolben |
| WO2001014713A1 (de) * | 1999-08-20 | 2001-03-01 | Robert Bosch Gmbh | Kombiniertes hub-/druckgesteuertes kraftstoffeinspritz verfahren und -system für eine brennkraftmaschine |
| WO2001052916A2 (de) * | 2000-01-20 | 2001-07-26 | Robert Bosch Gmbh | Einspritzeinrichtung und verfahren zum einspritzen von fluid |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3833430A1 (de) * | 1987-12-24 | 1989-07-06 | Pierburg Gmbh | Brennstoffoerdersystem |
| DE4313852B4 (de) * | 1993-04-28 | 2004-11-25 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
| US5598817A (en) * | 1993-09-10 | 1997-02-04 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Fuel feeding system for internal combustion engine |
| GB2308157B (en) * | 1995-12-11 | 1999-06-02 | Caterpillar Inc | Fuel system having actuating fluid accumulator reservoir |
| JPH09310661A (ja) * | 1996-05-20 | 1997-12-02 | Denso Corp | 直噴式ガソリンエンジンの燃料供給装置 |
| JPH11132124A (ja) * | 1997-10-24 | 1999-05-18 | Nippon Soken Inc | 燃料噴射装置 |
| FR2791093B1 (fr) * | 1999-03-18 | 2001-05-04 | Inst Francais Du Petrole | Systeme d'alimentation en carburant liquide sous pression d'un moteur a combustion interne |
| DE19949514C2 (de) * | 1999-10-14 | 2001-10-18 | Bosch Gmbh Robert | Vorrichtung zum schnellen Druckaufbau in einer durch eine Förderpumpe mit einem Druckmedium versorgten Einrichtung eines Kraftfahrzeugs |
| DE19952782C2 (de) * | 1999-11-03 | 2003-04-24 | Daimler Chrysler Ag | System zur Reduzierung eines Aerosols |
| US6234128B1 (en) * | 2000-03-13 | 2001-05-22 | General Motors Corporation | Fuel accumulator with pressure on demand |
| JP2002089405A (ja) * | 2000-09-11 | 2002-03-27 | Toyota Motor Corp | 高圧燃料供給装置 |
| DE10106095A1 (de) * | 2001-02-08 | 2002-08-29 | Bosch Gmbh Robert | Kraftstoffsystem, Verfahren zum Betreiben des Kraftstoffsystems, Computerprogramm sowie Steuer- und/oder Regelgerät zur Steuerung des Kraftstoffsystems |
| JP4442048B2 (ja) * | 2001-04-12 | 2010-03-31 | トヨタ自動車株式会社 | 内燃機関の高圧燃料供給装置 |
-
2002
- 2002-12-23 DE DE10260775A patent/DE10260775A1/de not_active Withdrawn
-
2003
- 2003-11-21 WO PCT/EP2003/013069 patent/WO2004059160A1/de not_active Ceased
- 2003-11-21 EP EP03813879A patent/EP1588045A1/de not_active Withdrawn
-
2005
- 2005-06-22 US US11/159,090 patent/US7201128B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028620A1 (de) * | 1997-11-29 | 1999-06-10 | Mannesmann Rexroth Ag | Schnellstart einer hochdruckpumpe mittels druckübersetzungskolben |
| WO2001014713A1 (de) * | 1999-08-20 | 2001-03-01 | Robert Bosch Gmbh | Kombiniertes hub-/druckgesteuertes kraftstoffeinspritz verfahren und -system für eine brennkraftmaschine |
| WO2001052916A2 (de) * | 2000-01-20 | 2001-07-26 | Robert Bosch Gmbh | Einspritzeinrichtung und verfahren zum einspritzen von fluid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008135339A1 (de) * | 2007-05-07 | 2008-11-13 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem mit druckverstärkung |
| US8245694B2 (en) | 2007-05-07 | 2012-08-21 | Robert Bosch Gmbh | Fuel injection system with pressure boosting |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050235962A1 (en) | 2005-10-27 |
| EP1588045A1 (de) | 2005-10-26 |
| DE10260775A1 (de) | 2004-07-01 |
| US7201128B2 (en) | 2007-04-10 |
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