EP2635785A1 - Kraftstoffeinspritzsystem sowie verfahren zur befüllung und/oder entlüftung eines kraftstoffeinspritzsystems - Google Patents
Kraftstoffeinspritzsystem sowie verfahren zur befüllung und/oder entlüftung eines kraftstoffeinspritzsystemsInfo
- Publication number
- EP2635785A1 EP2635785A1 EP11761060.0A EP11761060A EP2635785A1 EP 2635785 A1 EP2635785 A1 EP 2635785A1 EP 11761060 A EP11761060 A EP 11761060A EP 2635785 A1 EP2635785 A1 EP 2635785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- pump
- injection system
- valve
- fuel injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 238000013022 venting Methods 0.000 title claims abstract description 40
- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 239000002828 fuel tank Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
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
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
- F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
-
- 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
-
- 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
- F02D41/3082—Control of electrical fuel pumps
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- 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
- F02M59/46—Valves
- F02M59/462—Delivery valves
-
- 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
- F02M59/46—Valves
- F02M59/464—Inlet valves of the check valve type
-
- 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 injection system having the features of the preamble of claim 1. Furthermore, the invention relates to a method for filling and / or venting of a fuel injection system, for example, at a first start in the vehicle factory or at a restart after Tankleer mars.
- a generic fuel injection system is known for example from DE 199 54 695 A1.
- the disclosed herein system for fuel supply of internal combustion engines has a arranged in a low-pressure circuit low-pressure pump, by means of which fuel from a fuel tank of a high-pressure pump can be fed, which promotes the high-pressure fuel in a central high-pressure fuel storage.
- a device for targeted In order to facilitate the venting of the low-pressure circuit, for example, after empty fuel tank or after service work, a device for targeted
- the device preferably comprises a return line connected to the fuel tank, in which a throttle is formed.
- the throttle is used to bleed the low-pressure circuit into the tank.
- the proposed system has the advantage that the vent does not have to be made against the opening pressure of the suction valve of the high-pressure pump, which can take a long time.
- the venting process can be shortened by the proposed device and thus simplified.
- Another generic fuel injection system is apparent from DE 198 58 084 C1.
- at least one vent member is arranged for venting the low-pressure region between the feed pump and the high-pressure pump, which opens on the output side in a region with lower pressure than in the low pressure region and thus venting the low pressure region already at a pressure below that for operating the high pressure pump required pressure is.
- a vent member may be, for example, a throttle or a vent valve.
- the use of an electrically driven auxiliary pump for supporting the delivery pump is proposed.
- the present invention has the object to provide a fuel injection system that is quickly filled and / or vented at first start or restart. Furthermore, a method is to be specified which allows rapid filling and / or venting of such a fuel injection system.
- the proposed fuel injection system comprises a prefeed pump and a high pressure pump.
- the high-pressure pump is used to pressurize the fuel with high pressure and comprises at least one pump element with a first valve serving as an inlet valve and a second valve serving as an outlet valve.
- the prefeed pump is an electric fuel pump, by means of which a prefeed pressure can be achieved which is equal to or greater than the total opening pressure of the two valves of the pump element. In this way, a fast filling and / or venting at first start in the vehicle plant or at restart after Tankleer mars be effected.
- the venting therefore takes place via the high-pressure pump, that is to say via the high-pressure region, so that venting of the entire system can be achieved. Accordingly, it is ensured that the element space of a pump element of the high-pressure pump is completely filled or refilled, since the venting of the element space is ensured by the opening of the exhaust valve. Because a vent on the game between the pump piston and guide bore of the pump element is no longer readily possible due to the reduced game modern high-pressure pumps. The reduced clearance causes the trapped air can not or only very slowly escape from the element space.
- the prefeed pressure is set so high that the sum of the opening pressure of the valves of the high pressure pump is overcome, so that the high pressure path is released for venting. It is also ensured that particles located in the high-pressure region, which cause the valves to jam and thus cause a non-start, are flushed out. Thus, a restart after contamination is guaranteed.
- a quick filling at first start in the vehicle plant or at restart requires first a complete ventilation of the system. Due to its compressibility, existing air in the system counteracts rapid pressure build-up in the high-pressure accumulator.
- the complete venting is ensured by the use of the electric fuel pump as a prefeed pump and the prefeed pressure of the prefeed pump, which according to the invention is at least equal to the sum of the opening pressure of the valves of the high-pressure pump.
- an electric fuel pump as Vor fundamentalpumpe also makes the use of an electrically driven auxiliary pump unnecessary.
- a fast filling or venting can be effected with the already existing components of the fuel injection system.
- the electric fuel pump can be operated independently of a motor, so that the specified system is suitable in particular for filling or venting at a first start in the vehicle factory or at a restart after complete tank clearance. With a fast pressure build-up in the high-pressure accumulator, therefore, a fast engine start can also be effected.
- the prefetching pressure achievable by means of the prefeed pump is 4-6bar, for example 5bar.
- the opening pressure of the inlet valve and / or the outlet valve 1 -3bar for example 2bar.
- a prefeed pressure which is equal to or greater than the sum opening pressure of the valves of the high-pressure pump can be set.
- the inlet valve and / or the outlet valve is / are
- a high-pressure accumulator preferably in the form of a common storage line, connected, in which a pressure control valve is received.
- the pressure valve is at least temporarily closed during filling and / or venting to allow a pressure build-up in the element space and consequently in the high-pressure accumulator.
- a method for filling and / or venting of a fuel injection system as described above at first start in the vehicle plant or at restart after refueling is proposed, wherein according to the invention by means of the prefeed pump a prefeed pressure is set, which is greater than the sum of the opening pressure of the two valves of the high pressure pump ,
- the prefeed pressure of the prefeed pump can thus overcome the opening pressure of the valves and remove the air present in the system via the high-pressure area.
- optimized venting of the high-pressure pump at standstill as well as rapid pressure build-up in the high-pressure accumulator or rapid engine start can be effected.
- any existing, the starting ability hazardous particles can be flushed out of the high pressure area.
- a pressure regulating valve arranged in a high-pressure accumulator is closed.
- the closed pressure control valve allows a quick pressure build-up.
- the duration of the first phase of the filling or venting corresponds to a Vorbe bendllungs- and / or pre-venting time with the engine stopped. Preferably, this extends over a period of 10 to 15 seconds.
- the method is performed at a slightly tilted mounting position of the high-pressure pump.
- the opening pressure of the exhaust valve should be as low as possible.
- a pre-filling or a pre-bleeding was first carried out by means of the prefeed pump with a closed pressure control valve. After completion of the filling or venting phase, the high-pressure pump was started, which had a short time later, the pressure build-up in the high-pressure accumulator result.
- the optimum pre-filling time with the engine stopped is 10 seconds.
- the pre-bleed time can be slightly longer. The total ventilation time is not adversely affected.
- the air initially accumulates in the upper areas of the high-pressure pump, so far, the mounting position of the high pressure pump has an influence on the filling or starting time.
- the supplied fuel begins to mix with the air, it comes to foam in the return of the high-pressure pump, via which the removal of the air takes place.
- foaming in the pump return decreases until the high pressure pump is fully vented.
- the pressure build-up in the high-pressure accumulator could already be effected after 15 seconds with a 70 ° installation position of the high-pressure pump, a prefeed pressure of about 4 bar and an opening pressure of the outlet valve of 1.2 bar.
- the pressure regulating valve arranged in the high-pressure accumulator is opened again.
- FIG. 1 a, b show a schematic representation of a device according to the invention
- Fuel injection system, 2a, b each have a high pressure pump of a fuel injection system according to the invention in different mounting position,
- 3 to 6 are each a diagram illustrating the pressure curves and the
- the fuel injection system shown schematically in FIGS. 1 a and 1 b comprises in each case an electric fuel pump as a prefeed pump 1 and a high-pressure pump 2 for pressurizing the fuel at high pressure.
- the high-pressure pump 2 has at least one pump element with an element space 6, which is delimited by a pump piston 7.
- the fuel passes via an inlet valve 3 into the element space 6.
- the high-pressure fuel is supplied to a high-pressure accumulator 5 via an outlet valve 4.
- the element space 6 is filled with air.
- the element space 6 must first be vented.
- the venting can be done on the one hand via the outlet valve 4, on the other hand on the game between the pump piston 7 and the pump piston 6 receiving guide bore 9, the arrangement of an additional vent valve should be bypassed.
- the game is so small that an effective venting over this can not be achieved.
- the sum of the opening pressure of the two valves 3, 4 of the high pressure pump 2 is greater than the pre-feed pressure caused by the feed pump 1 selected.
- the inlet valve 3 opens while the outlet valve 4 remains closed.
- a partial filling of the element space 6 is due to the compressibility of the air contained 10 and possibly due to a small vent on the clearance between the pump piston 7 and the guide hole 9 while possible, However, there remains a residual air in the element space 6. Since the exhaust valve 4 remains closed, there is no pressure build-up in the high pressure accumulator. 5
- the total opening pressure of the valves 3, 4 of the high-pressure pump 2 is selected smaller than the prefeed pressure.
- the intake valve 3 not only the intake valve 3 but also the exhaust valve 4 opens, so that the air 10 contained in the element space 6 completely escape and the element space 6 can be filled with fuel.
- the opening of the exhaust valve 4 also causes a pressure build-up in the high pressure accumulator. 5
- a fast venting depends inter alia on the mounting position of the high-pressure pump 2.
- Two possible mounting positions are shown in FIGS. 2a and 2b. While Fig. 2a shows a 0 ° mounting position, wherein the angle refers to the inclination of a metering unit 8 of the high-pressure pump 2 with respect to a vertical, in Fig. 2b, a 70 ° mounting position is shown.
- the 70 ° mounting position proves to be advantageous due to the distribution of the air 10 within the high-pressure pump 2 with a view to rapid venting.
- FIGS. 3 to 6 Further requirements for rapid filling or venting of the high-pressure pump 2 can be explained with reference to the diagrams of FIGS. 3 to 6.
- the diagrams each show the pressure curve in the element space 6 (p_chamber space) and in the high-pressure reservoir 5 (p_Rail) as a function of the pre-feed pressure of the prefeed pump 1 (p_EKP). Furthermore, the speed of the high-pressure pump 2 can be taken from the diagrams (n_HDP).
- the prefeed pressure of the prefeed pump 1 is set to 5 bar for the preliminary venting of the high-pressure pump 2.
- the opening pressure of the intake valve 3 is 2bar and the opening pressure of the exhaust valve 4 is 4bar.
- the sum opening pressure of the valves 3, 4 is thus greater than the prefeed pressure.
- the exhaust valve 4 does not open and no effective venting of the high pressure pump 2 takes place.
- the opening pressure of the inlet valve 3 can be overcome, so that a low pressure builds up in the piston or element space 6, this, however, remains below the opening pressure of the outlet valve 4.
- the prefeeder pressure is again set to 5 bar.
- the opening pressure of the intake valve 3 is only 1 bar and that of the exhaust valve 4 3bar.
- the sum opening pressure of the valves 3, 4 is thus smaller than the prefeed pressure.
- the exhaust valve 4 opens the exhaust valve 4, so that in the high pressure accumulator 5 pressure can be built up (p_Rail).
- the high pressure pump 2 is vented.
- FIG. 5 and 6 respectively show the pressure curve in the element space 6 and the high-pressure accumulator 5 in dependence on Vor fundamentaldruck the prefeed pump 1 at a first start or restart after Tankleerfahrt
- the diagram of Figure 5 the arrangement of Fig. 3 and Diagram of FIG. 6, the arrangement of FIG. 4 is based. That is, in the example of FIG. 5, the sum opening pressure of the two valves 3, 4 is larger than the prefeed pressure and, in the example of FIG. 6, the sum opening pressure of the two valves 3, 4 is set smaller than the prefeed pressure.
- the air 10 present in the element space 6, which is highly compressible, causes the opening pressure of the outlet valve 4 to be reached late or never. This means that the engine does not start.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010043255A DE102010043255A1 (de) | 2010-11-03 | 2010-11-03 | Kraftstoffeinspritzsystem sowie Verfahren zur Befüllung und/oder Entlüftung eines Kraftstoffeinspritzsystems |
PCT/EP2011/066404 WO2012059268A1 (de) | 2010-11-03 | 2011-09-21 | Kraftstoffeinspritzsystem sowie verfahren zur befüllung und/oder entlüftung eines kraftstoffeinspritzsystems |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2635785A1 true EP2635785A1 (de) | 2013-09-11 |
EP2635785B1 EP2635785B1 (de) | 2015-04-08 |
Family
ID=44677884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11761060.0A Active EP2635785B1 (de) | 2010-11-03 | 2011-09-21 | Kraftstoffeinspritzsystem sowie verfahren zur befüllung und/oder entlüftung eines kraftstoffeinspritzsystems |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2635785B1 (de) |
CN (1) | CN103189631B (de) |
DE (1) | DE102010043255A1 (de) |
WO (1) | WO2012059268A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106194534A (zh) * | 2016-08-26 | 2016-12-07 | 哈尔滨东安汽车发动机制造有限公司 | 一种汽车油路快速排气装置及其使用方法 |
DE102017208713A1 (de) * | 2017-05-23 | 2018-11-29 | Robert Bosch Gmbh | Verfahren zur Entlüftung eines Kraftstoffversorgungssystems |
CN109113884B (zh) * | 2018-08-06 | 2020-06-02 | 东风汽车集团有限公司 | 基于油路系统排气的起动辅助控制方法 |
DE102019219733A1 (de) * | 2019-12-16 | 2021-06-17 | Robert Bosch Gmbh | Verfahren zum Entlüften eines Kraftstoffversorgungssystems |
CN112922733B (zh) * | 2021-01-29 | 2022-11-15 | 浙江吉利控股集团有限公司 | 一种车辆首次排气起动控制方法、装置及设备 |
CN114607517B (zh) * | 2022-03-11 | 2023-03-24 | 中国第一汽车股份有限公司 | 一种油泵状态控制方法、装置、车辆和存储介质 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5230613A (en) * | 1990-07-16 | 1993-07-27 | Diesel Technology Company | Common rail fuel injection system |
US5133645A (en) * | 1990-07-16 | 1992-07-28 | Diesel Technology Corporation | Common rail fuel injection system |
CH689281A5 (de) * | 1994-02-03 | 1999-01-29 | Christian Dipl-Ing Eth Mathis | Kraftstoffeinspritzanlage fuer eine Brennkraftmaschine, insbesondere fuer einen Dieselmotor, sowie ein Verfahren zur Ueberwachung derselben. |
JP2885076B2 (ja) * | 1994-07-08 | 1999-04-19 | 三菱自動車工業株式会社 | 蓄圧式燃料噴射装置 |
JP3842331B2 (ja) * | 1995-05-26 | 2006-11-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関の燃料供給のための燃料供給装置及び内燃機関を運転する方法 |
DE19539883B4 (de) * | 1995-05-26 | 2011-06-01 | Robert Bosch Gmbh | Kraftstoffversorgungsanlage und Verfahren zum Betreiben einer Brennkraftmaschine |
DE19858084C1 (de) | 1998-12-16 | 2000-04-20 | Siemens Ag | Einspritzsystem und zugehöriges Betriebsverfahren |
DE19954695A1 (de) | 1999-11-13 | 2001-05-23 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem |
DE10115324A1 (de) * | 2001-03-28 | 2002-10-17 | Bosch Gmbh Robert | Kraftstoffsystem |
JP3941667B2 (ja) * | 2002-11-07 | 2007-07-04 | 株式会社デンソー | 蓄圧式燃料噴射装置 |
DE102010002801A1 (de) * | 2010-03-12 | 2011-09-15 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem einer Brennkraftmaschine |
-
2010
- 2010-11-03 DE DE102010043255A patent/DE102010043255A1/de not_active Withdrawn
-
2011
- 2011-09-21 EP EP11761060.0A patent/EP2635785B1/de active Active
- 2011-09-21 CN CN201180052170.9A patent/CN103189631B/zh not_active Expired - Fee Related
- 2011-09-21 WO PCT/EP2011/066404 patent/WO2012059268A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012059268A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102010043255A1 (de) | 2012-05-03 |
CN103189631B (zh) | 2016-09-14 |
WO2012059268A1 (de) | 2012-05-10 |
EP2635785B1 (de) | 2015-04-08 |
CN103189631A (zh) | 2013-07-03 |
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