EP1260700B1 - Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine - Google Patents
Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP1260700B1 EP1260700B1 EP02008447A EP02008447A EP1260700B1 EP 1260700 B1 EP1260700 B1 EP 1260700B1 EP 02008447 A EP02008447 A EP 02008447A EP 02008447 A EP02008447 A EP 02008447A EP 1260700 B1 EP1260700 B1 EP 1260700B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- pressure
- control 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.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 title claims description 84
- 239000007924 injection Substances 0.000 title claims description 84
- 239000000446 fuel Substances 0.000 title claims description 65
- 238000002485 combustion reaction Methods 0.000 title claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Images
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
- F02M63/0012—Valves
- F02M63/0059—Arrangements of valve actuators
- F02M63/0061—Single actuator acting on two or more valve bodies
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing 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
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- 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
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
- F02M59/468—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means using piezoelectric operating means
-
- 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
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
Definitions
- the invention relates to a fuel injection device for Internal combustion engine according to the preamble of claim 1.
- Such a fuel injection device is described by DE 199 39 421 A known.
- this fuel injection device is a common fuel pump for all cylinders of the internal combustion engine provided in the usual way by the internal combustion engine Having in a lifting movement driven pump piston, the one Pump work space limited to the fuel from one Fuel tank is supplied and the on a Distributor device on the cylinders of the internal combustion engine arranged fuel injection valves is connectable.
- each Fuel injection valve has an injection valve member, is controlled by the at least one injection opening and the through the pressure space connectable to the pump working space of the fuel injection valve against a closing force in a Opening direction is movable. It is a first electric controlled control valve provided by a connection of the Pump work space is controlled with a discharge space.
- a second electrically controlled control valve provided by the in a control pressure chamber of the Fuel injection valve is controlled by prevailing pressure the injection valve member at least indirectly in the closing direction is charged.
- the third Control valve is a fuel injection, such as a Pre-injection and / or a post-injection, with a through the Pressure relief valve allows certain pressure level.
- a separate actuator is required, causing the Structure of the fuel injection device is very expensive.
- the fuel injection device according to the invention with the Features according to claim 1 has the advantage that the Structure of the fuel injection device is simplified as for the first and the third control valve requires only one actuator is.
- FIG. 1 shows a Fuel injection device for an internal combustion engine in a schematic representation according to a first Embodiment
- Figure 2 shows a curve of a pressure Injection openings of a fuel injection valve of Fuel injection device
- Figure 3 in part a modified version of Fuel injector.
- FIG. 1 and 3 is a Fuel injection device for an internal combustion engine a motor vehicle shown.
- the internal combustion engine is preferably a self-igniting internal combustion engine.
- the Fuel injection device is preferably as trained so-called pump-line-nozzle system and has one for each cylinder of the internal combustion engine Fuel pump 10, a fuel injection valve 12 and a the fuel injection valve 12 with the Fuel pump 10 connecting line 14.
- the Fuel pump 10 has one in a cylinder 16 tight guided pump piston 18, which by a cam 20 a camshaft of the internal combustion engine against the force a return spring 19 driven in a lifting movement becomes.
- the pump piston 18 limited in the cylinder 16 a Pump work chamber 22, in which the delivery stroke of Pump piston 18 fuel is compressed under high pressure.
- the pump working chamber 22 is by means of a feed pump 21st Fuel from a fuel tank 24 of the Motor vehicle supplied. Between the feed pump 21 and the pump working space 22 is a pump working space 22nd opening check valve 23 is arranged. In the line 14 may be another opening from the pump working chamber 22 Check valve 25 may be arranged. The delivery line 13 from the feed pump 21 opens between the pump working space 22 and the further check valve 25th
- the fuel injection valve 12 is separate from the Fuel pump 10 is arranged and via the line 14 with connected to the pump working space 22.
- the Fuel injection valve 12 has a valve body 26 on, which may be formed in several parts, in the one Injection valve member 28 in a bore 30th is guided longitudinally displaceable.
- the valve body 26 indicates its the combustion chamber of the cylinder of the internal combustion engine facing end region at least one, preferably a plurality Injection openings 32.
- the injection valve member 28 has at its the combustion chamber end facing a For example, about conical sealing surface 34, which with one in the valve body 26 in the combustion chamber facing End region formed valve seat 36 cooperates, from or after which the injection openings 32 dissipate.
- valve body 26 is between the injection valve member 28 and the bore 30 to the valve seat 36 toward an annular space 38th present, in its the valve seat 36 facing away End region by a radial extension of the bore 30 in a pressure chamber 40 surrounding the injection valve member 28 passes.
- the injection valve member 28 has the height of the Pressure chamber 40 by a cross-sectional reduction a Pressure shoulder 42 on.
- a biased Closing spring 44 At the end of the combustion chamber facing away from the Injector member 28 engages a biased Closing spring 44, through which the injection valve member 28th is pressed toward the valve seat 36.
- the closing spring 44 is arranged in a spring chamber 46 of the valve body 26, the adjoins the bore 30.
- a further bore 48 in which a Piston 50 is tightly guided, with the Injection valve member 28 is connected.
- the piston 50 limited with its the injection valve member 28 facing away Front side a control pressure chamber 52 in the valve body 26.
- Im Valve body 26, a channel 54 is formed, in which the Line 14 to the fuel pump 10 opens and in the Pressure chamber 40 opens.
- the Fuel injector has a near the Fuel pump 10 arranged first control valve 60, for example, be integrated into the fuel pump 10 can.
- first control valve 60 Through the first control valve 60 is a connection 59 of the pump working chamber 22 of the fuel pump 10 with controlled a discharge space, as the at least indirectly the fuel tank 24 may serve.
- the connection 59 branches downstream of the check valve 25 of the Line 14 off.
- the first control valve 60 may be pressure compensated or not be formed pressure balanced.
- the first control valve 60 is formed as a 2/2-way valve and by this In a first switching position, the connection 59 to Relief space 24 opened and in a second Switching position is the connection 59 to the discharge space 24th separated.
- a second control valve 68 is provided, through which a Connection 70 of the control pressure chamber 52 with a Relief space, such as the Fuel tank 24, is controlled.
- the second Control valve 68 is electrically controllable and has a Actuator 69, which may be an electromagnet or a piezoelectric actuator can, by a control device 66 electrically is controlled and by a valve member of the Control valve 68 is movable.
- the second control valve 68 is preferably formed pressure balanced.
- the second Control valve 68 is designed as a 2/2-way valve, by the connection 70 in a first switching position the control pressure chamber 52 with the fuel tank 24th is separated and by that in a second switching position the connection 70 of the control pressure chamber 52 with the Fuel tank 24 is open.
- a Throttle 58 In the connection 59 of the control pressure chamber 52 with the line 14 is a Throttle 58 and provided in the connection 70 of the Control pressure space 52 with the fuel tank 24 is between the control pressure chamber 52 and the second control valve 68 another throttle point 71 is provided.
- the second Control valve 68 is also controlled by the controller 66 controlled.
- the control of the control valves 60,68 through the controller 66 is dependent on Operating parameters of the internal combustion engine, such as For example, speed, load and temperature.
- a third control valve 74 through the another connection 75 of the pump working space 22 is controlled with a discharge space, as the in turn, the fuel tank 24 may serve.
- connection 75 is a to the fuel tank 24th opening pressure relief valve 76 arranged.
- the Pressure relief valve 76 for example, by a closing spring 77 loaded valve member 78, the against the force of the closing spring 77 to Fuel tank 24 toward the opening direction is movable.
- the pressure limiting valve 76 is preferably as shown in Figure 1 upstream of the third Control valve 74 disposed, wherein the third control valve 74th this does not need to be pressure balanced.
- pressure relief valve 76 may also as in Figure 3 shown downstream of the third control valve 74th be arranged, in which case the third control valve 74th is preferably formed pressure balanced.
- the third Control valve 74 is designed as a 2/2-way valve and by this is in a first switching position the Connection 75 to the relief space 24 is opened and in one second switching position, the connection 75 to Relief space 24 separated.
- the first control valve 60 and the third control valve 74 are preferably by a common through the Control device 66 electrically actuated actuator 80th controlled.
- the first control valve 60 and the third Control valve 74 may be disposed on the fuel pump 10 be.
- the control valves 60,74 can, for example be arranged side by side.
- the actuator 80 is the Controlled in a Aktor horrraum 82 prevailing pressure, wherein the actuator pressure chamber 82 with a hydraulic fluid, especially fuel is filled.
- the actuator 80 is preferably designed as a piezoelectric actuator, depending on the height of an electrical voltage applied to this its length changes.
- the two control valves 60, 74 have in each case a control valve member 62,86, the pressure in the Aktordruckraum 82 is acted upon and against the force of a Return spring 63,87 is movable.
- the bias of Return spring 87 of the third control valve 74 is larger as the bias of the return spring 63 of the first Control valve 60.
- the first control valve 60 and the third Control valve 74 is at low pressure in Aktordruckraum 82nd opened, so that both compounds 59 and 75 of Pump workspace 22 with the discharge chamber 24 is opened are.
- the third control valve 74 switches to its closed position, so that the pump working space 22nd is completely separated from the relief space 24.
- the first Control valve 60 remains in increasing the pressure in Actuator pressure chamber 82 in its closed position.
- the pressure relief valve 76 opens and fuel flows through the opened third Control valve 74 and the connection 75 in the discharge space 24. Subsequently, the remains in the line 14 and the Pressure chamber 40 prevailing pressure at least approximately constant.
- the opening pressure of the pressure relief valve 76 is through the bias of its closing spring 77 determined.
- the Pre-injection takes place with a through the Pressure relief valve 76 limited pressure.
- the second Control valve 68 is controlled by a corresponding control of the actuator 69 is opened, so that the control pressure chamber 52 with the discharge space 24 is connected.
- the opened second control valve 68 may be in the control pressure chamber 52nd despite its connection 56 with the line 14 no increased Build up pressure, but this becomes the Fuel tank 24 reduced down.
- the Throttle points 58 and 71 is achieved that from the channel 54th only a small amount of fuel in the Fuel tank 24 can drain.
- the second Control valve 68 closed by the control device 66, so that the control pressure chamber 52 from the fuel tank 24 is separated and in the control pressure chamber 52 via the Compound 56 with the line 14 builds up an increased pressure.
- a force of the closing spring 44th generates supportive force so that the Injection valve member 28 against its opening direction 29th moved and with its sealing surface 34 on the valve seat 36 to. Plant comes and the pre-injection is finished.
- the first control valve 60 is opened be so that in the pump working chamber 22, the line 14th and the pressure chamber 40 can no longer build high pressure and the fuel injection valve 12 by the force of Closing spring 44 closes.
- the second Control valve 68 opened by the controller 66, so that the control pressure chamber 52 is relieved again and the Fuel injection valve 12 opens.
- the first control valve 60 is closed by the control device 66, so that the connection 59 of the pump working chamber 22 with the Relief space 24 is disconnected.
- the third control valve 74 remains open at the beginning of the main injection, so that the connection 75 is open to the relief space 24 and in the conduit 14 and the pressure chamber 40 of the Fuel injection valve 12 by the Pressure relief valve 76 establishes predetermined pressure.
- the Main injection then starts with a pressure level like also the pre-injection is done.
- the main injection starts with a closed third control valve 74 with a higher pressure level than at first open third Control valve 74.
- the third control valve 74 closed by the control device 66, so that the Compound 75 is separated with the discharge space 24 and the main injection continues with a pressure like he did according to the profile of the cam 20 in the pump working space 22 is generated. It can also be provided that first the third control valve 74 is closed, but that second control valve 68 still remains closed, so that still no injection takes place. The second control valve 68 is then only delayed opening, whereby the beginning of the Main injection is delayed and also the Main injection starts at a higher pressure.
- the Main injection corresponds in Figure 2 one with II designated injection phase, wherein the pressure curve with shown by the solid line in the event that the third control valve 74 is opened at the beginning, and the Pressure curve with dashed line in case is shown that the third control valve 74 already closed Beginning is closed.
- the second Control valve 68 closed by the control device 66, so that the control pressure chamber 52 from the fuel tank 24 is separated and in the control pressure chamber 52 by the Connection with the line 14 and thus the Pump work space 22 builds high pressure, through which the Fuel injection valve 12 is closed.
- the first Control valve 60 and the third control valve 74 remain there closed so that the connections 59 and 75 to Relief space 24 are separated.
- the second control valve 68 by the controller 66 opened again, so that the control pressure chamber 52 again is relieved and the fuel injection valve 12 opens.
- the post-injection takes place with a pressure curve according to the profile of the cam 20.
- the Post-injection corresponds to one in Figure 2 with III designated injection phase.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims (3)
- Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen mit wenigstens einer Kraftstoffpumpe (10), die einen durch die Brennkraftmaschine in einer Hubbewegung angetriebenen Pumpenkolben (18) aufweist, der einen Pumpenarbeitsraum (22) begrenzt, dem Kraftstoff aus einem Kraftstoffvorratsbehälter (24) zugeführt wird und der mit einem Kraftstoffeinspritzventil (12) verbunden ist, das ein Einspritzventilglied (28) aufweist, durch das wenigstens eine Einspritzöffnung (32) gesteuert wird und das durch den in einem mit dem Pumpenarbeitsraum (22) verbundenen Druckraum (40) herrschenden Druck gegen eine Schließkraft in einer Öffnungsrichtung (29) bewegbar ist, mit einem ersten elektrisch gesteuerten Steuerventil (60), durch das eine Verbindung (59) des Pumpenarbeitsraums (22) mit einem Entlastungsraum (24) gesteuert wird, mit einem zweiten elektrisch gesteuerten Steuerventil (68), durch das der in einem Steuerdruckraum (52) des Kraftstoffeinspritzventils (12) herrschende Druck gesteuert wird, durch den das Einspritzventilglied (28) zumindest mittelbar in Schließrichtung beaufschlagt ist, und mit einem dritten elektrisch gesteuerten Steuerventil (74), durch das eine Verbindung (75) des Pumpenarbeitsraums (22) mit einem Entlastungsraum (24) gesteuert wird, in der ein zum Entlastungsraum (24) hin öffnendes Druckbegrenzungsventil (76) angeordnet ist, dadurch gekennzeichnet, dass für jeden Zylinder der Brennkraftmaschine eine Kraftstoffpumpe (10) mit jeweils einem ersten Steuerventil (60) und einem dritten Steuerventil (74) vorgesehen ist und dass das erste Steuerventil (60) und das dritte Steuerventil (74) der Kraftstoffpumpe (10) durch einen gemeinsamen elektrisch angesteuerten Aktor (80) gesteuert werden.
- Kraftstoffeinspritzeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß durch den Aktor (80) der in einem Aktordruckraum (82) herrschende Druck gesteuert wird, durch den das erste Steuerventil (60) und das dritte Steuerventil (74) beaufschlagt sind.
- Kraftstoffeinspritzeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Druckbegrenzungsventil (76) in der Verbindung (75) stromaufwärts des dritten Steuerventils (74) angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123995A DE10123995A1 (de) | 2001-05-17 | 2001-05-17 | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10123995 | 2001-05-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1260700A1 EP1260700A1 (de) | 2002-11-27 |
EP1260700B1 true EP1260700B1 (de) | 2005-02-02 |
Family
ID=7685112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02008447A Expired - Lifetime EP1260700B1 (de) | 2001-05-17 | 2002-04-13 | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
Country Status (3)
Country | Link |
---|---|
US (1) | US6540160B2 (de) |
EP (1) | EP1260700B1 (de) |
DE (2) | DE10123995A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10014451A1 (de) * | 2000-03-23 | 2001-09-27 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Formung des Einspritzdruckverlaufs an Injektoren |
DE10158660A1 (de) * | 2001-11-30 | 2003-06-12 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10205750A1 (de) * | 2002-02-12 | 2003-08-21 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
EP1359316B1 (de) * | 2002-05-03 | 2007-04-18 | Delphi Technologies, Inc. | Kraftstoffeinspritzeinrichtung |
US7281523B2 (en) | 2003-02-12 | 2007-10-16 | Robert Bosch Gmbh | Fuel injector pump system with high pressure post injection |
US7146973B2 (en) * | 2003-09-09 | 2006-12-12 | James Pneumatics, Llc | Launching device |
US20060196974A1 (en) * | 2005-03-01 | 2006-09-07 | Caterpillar Inc. | Fuel injector having a gradually restricted drain passageway |
US7762478B1 (en) * | 2006-01-13 | 2010-07-27 | Continental Automotive Systems Us, Inc. | High speed gasoline unit fuel injector |
DE102016015037B3 (de) * | 2016-12-16 | 2018-05-30 | L'orange Gmbh | Kraftstoffinjektoranordnung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3823827A1 (de) * | 1988-07-14 | 1990-01-18 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen, insbesondere pumpeduese |
DE19504849A1 (de) * | 1995-02-15 | 1996-08-22 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
GB9810327D0 (en) * | 1998-05-15 | 1998-07-15 | Lucas Ind Plc | Fuel system and pump suitable for use therein |
DE69905685T2 (de) * | 1998-11-19 | 2003-10-02 | Mitsubishi Motors Corp | Kraftstoffeinspritzvorrichtung der Akkumulatorgattung |
DE19939421A1 (de) * | 1999-08-20 | 2001-03-01 | Bosch Gmbh Robert | Kombiniertes hub-/druckgesteuertes Kraftstoffeinspritzverfahren und -system für eine Brennkraftmaschine |
-
2001
- 2001-05-17 DE DE10123995A patent/DE10123995A1/de not_active Withdrawn
-
2002
- 2002-04-13 DE DE50202158T patent/DE50202158D1/de not_active Expired - Fee Related
- 2002-04-13 EP EP02008447A patent/EP1260700B1/de not_active Expired - Lifetime
- 2002-05-17 US US10/147,084 patent/US6540160B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE10123995A1 (de) | 2002-11-21 |
US20030010846A1 (en) | 2003-01-16 |
US6540160B2 (en) | 2003-04-01 |
DE50202158D1 (de) | 2005-03-10 |
EP1260700A1 (de) | 2002-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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