EP1312792A2 - Kraftstoffspritzeinrichtung für eine Brennkraftmaschine - Google Patents
Kraftstoffspritzeinrichtung für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP1312792A2 EP1312792A2 EP02022358A EP02022358A EP1312792A2 EP 1312792 A2 EP1312792 A2 EP 1312792A2 EP 02022358 A EP02022358 A EP 02022358A EP 02022358 A EP02022358 A EP 02022358A EP 1312792 A2 EP1312792 A2 EP 1312792A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- fuel injection
- pump
- chamber
- 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
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
- 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
- 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
-
- 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
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
-
- 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
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
-
- 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
- F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
Definitions
- the invention is based on one Fuel injection device for an internal combustion engine according to the preamble of claim 1.
- Such a fuel injector is through the EP 0 957 261 A.
- This fuel injector has one for each cylinder of the internal combustion engine High-pressure fuel pump and a connected to it Fuel injector on.
- the high pressure fuel pump has one by the internal combustion engine in one Stroke driven pump piston on one Pump working space limited. With the pump workspace is a pressure chamber of the fuel injector connected, the has an injection valve member through which at least one Injection opening is controlled by the in Pressure prevailing in a pressure chamber Opening direction to release the at least one Injection opening is movable.
- the high pressure fuel pump and the fuel injector are separate from each other arranged on the internal combustion engine and via a line connected with each other.
- the fuel injection device with the Features according to claim 1 has the advantage that through the control valve fuel into the storage space is scrapped from which during a subsequent suction stroke the pump piston fuel is removed so that the Pump workspace is only a part of the filling area required fuel quantity from the Fuel tank needs to suck. Moreover occur in the low pressure area of the Fuel injection device when switching off fuel no pressure surges through the control valve into the reservoir on.
- 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 pressure curve Injection openings of a fuel injector Fuel injector according to the first Embodiment
- Figure 3 the Fuel injector according to a second Embodiment.
- FIGs 1 and 3 is one Fuel injection device for an internal combustion engine shown a motor vehicle.
- the Fuel injection device is a so-called pump-line-nozzle system trained and assigns for each cylinder the internal combustion engine each have a fuel pump 10 Fuel injector 12 and one that Fuel injection valve 12 with the fuel pump 10 connecting line 14.
- the fuel pump 10 has one in a cylinder bore 16 of a pump body 15 tightly guided pump piston 18 by a cam 20 a camshaft of the internal combustion engine against the force a return spring 19 driven in one stroke becomes.
- the pump piston 18 delimits in the cylinder bore 16 a pump work chamber 22, in which the pump piston 18 Fuel is compressed under high pressure.
- the Pump workspace 22 becomes fuel from a Fuel tank 24 supplied, for example by means of a low pressure pump, not shown.
- the Pump work space 22 has a connection 17 to Fuel tank 24 in which one for Pump work chamber 22 non-return valve 21 is provided, which can be arranged in the pump body 15.
- the fuel injector 12 is separate from the Fuel pump 10 arranged and via line 14 with connected to the pump work space 22.
- the Fuel injection valve 12 has a valve body 26 on, which can be formed in several parts, in which a piston-shaped injection valve member 28 in a bore 30 is guided longitudinally.
- the valve body 26 instructs its the combustion chamber of the cylinder of the internal combustion engine facing end region at least one, preferably several Injection openings 32 on.
- the injection valve member 28 has at its end area facing the combustion chamber for example, approximately conical sealing surface 34, which with a valve seat 36 formed in the valve body 26 cooperates, from or after which the injection openings 32 lead away.
- valve body 26 In the valve body 26 is between the Injection valve member 28 and bore 30 to valve seat 36 an annular space 38 is present, through a radial Widening the bore 30 into the injection valve member 28 surrounding pressure chamber 40 passes.
- the Injection valve member 28 has in the area of pressure chamber 40 a pressure shoulder 42. At the end facing away from the combustion chamber of the injection valve member 28 engages a biased Closing spring 44 through which the injection valve member 28 is pressed towards the valve seat 36.
- the closing spring 44 is arranged in a spring chamber 46 of the valve body 26, the connects to the bore 30.
- Valve body 26 To the spring chamber 46 can at its end facing away from the bore 30 Valve body 26 connect another bore 48 in the a piston 50 is tightly guided with the Injection valve member 28 is connected.
- the piston 50 limited with its end face facing away from the spring chamber 46 a control pressure chamber 52 in the valve body 26.
- the line 14 opens into the valve body 26 and leads into this in a channel formed in the valve body 26 for Pressure chamber 40.
- Within the valve body 26 branches from the Line 14 from a channel 54 to one in the valve body 26th trained storage space 56 leads.
- the passage through the Channel 54 is controlled by an electrically operated control valve 58 controlled.
- Inside the valve body 26 can also branch off a line 60 from line 14, which leads to Control pressure chamber 52 leads.
- the control pressure chamber 52 is also via a channel 62 with the storage space 56 connected.
- the storage space 56 can, for example, in a bore in the Valve body 26 may be formed, which has a resilient limit in the form of a storage piston 64 which over supports a biased return spring 65.
- the Storage space 56 is dimensioned such that the volume, that can be accommodated in the storage space 56, at least is as large as the volume created by the pump piston 18 the high-pressure fuel pump 10 during a delivery stroke is promoted.
- Embodiment of the fuel injector is another electrically operated control valve 68 provided through which the passage through the channel 60 of the line 14 is controlled in the control pressure chamber 52.
- in the Channel 60 is preferably a first throttle point 61 provided and in the channel 62 from the control pressure chamber 52 to Storage space 56 is preferably a second throttle point 62 provided.
- the control pressure chamber 52 is via the channel 62 permanently connected to the storage space 56.
- the two control valves 58 and 68 can each have one electromagnetic actuator, a piezo actuator or one have another fast-switching actuator.
- the Control valves 58,68 are controlled by an electronic Control device 70 depending on the operating parameters of the Internal combustion engine controlled.
- the two control valves As shown in Figure 1, 58, 68 can each be a 2/2-way valve be formed between an open Switch position in which the passage through channel 60 or 62 is released, and a closed switching position, in which the passage through channels 60 and 62 is interrupted is switchable.
- Fuel injector according to the first Exemplary embodiment explained.
- the suction stroke of the Pump piston 18 is the first control valve 58 in its open switch position so that the connection of the Line 14 with the storage space 56 is open.
- the second Control valve 68 is in its closed Switch position, so the control pressure chamber 52 from line 14 is separated.
- In the storage space 56 existing and under Pressure stored fuel is the line 14 to the Pump working space 22 fed until the storage space 56th is emptied.
- the pressure in the storage space 56 is there preferably higher than the pressure in the low pressure range Fuel injector upstream of the Check valve 21 so that it is closed until the Storage space 56 is emptied. With another suction stroke through the pump piston 18 with the check valve 21 open Fuel drawn from the fuel reservoir 24.
- the check valve 21 and the pump piston 18 promotes Fuel via line 14 to the fuel injector 12.
- the first Control valve 58 in its open switching position, so that fuel is initially pumped into the storage space 56 and there is not sufficient high pressure for one Can build up fuel injection.
- the first control valve 58 through the controller 70 into its closed Switched position switched so that the line 14 from Storage space 56 is separated. It can also be provided that the first control valve 58 during the delivery stroke of the Pump piston 18 in its closed switching position is brought and the second control valve 68 in its open switch position is brought.
- the control pressure room 52 is then connected to line 14, so that in this there is an increased pressure, which over the control piston 50th keeps the fuel injector 12 closed. If the Fuel injection should start, so the second one Control valve 68 through the control device 70 in its brought closed switching position so that the Control pressure chamber 52 is separated from line 14 and in this only the pressure of the storage space 56 prevails. If the in the pressure chamber 40 of the fuel injection valve 12 prevailing pressure a the force of the closing spring 44 and the pressure force acting on the control piston 50 Generated force on the injector member 28 so moved this in opening direction 29 and gives the Injection ports 32 free.
- the Control device 70 the first control valve 58 in its brought open switch position, so that from Pump piston 18 delivers fuel into the storage space 56 arrives and the pressure in the pressure chamber 40 drops such that the fuel injection valve 12 closes.
- the Control device 70 To end the main injection, the Control device 70 the second control valve 68 in its brought open switch position, so that Fuel injection valve 12 through the in the control pressure chamber 52nd prevailing high pressure on the control piston 50 closed becomes. In the pressure chamber 40 there prevails in his closed switching position remaining first control valve 58 also high pressure.
- the Control device 70 For a post injection of Fuel in a phase designated III in FIG. 2 becomes the second control valve by the control device 70 68 closed again, so that the control pressure chamber 52nd is relieved and the fuel injection valve 12 opens.
- the Control device 70 the first control valve 58 in its opened switch position and the second Control valve 68 brought into its open switching position or leave it in its closed switch position.
- the pump piston 18 When the first control valve 58 is open, the pump piston 18 during its delivery stroke fuel delivered from the Line 14 shutdown in the storage space 56. With increasing entering the storage space The fuel piston moves against the storage piston 64 the force of the return spring 65 and the pressure in Storage space 56 increases. If during the Fuel injection only a small amount of fuel is injected, for example, when the idle Internal combustion engine or at low load is the case becomes a large amount of fuel in the storage space 56 shutdown and there is a high pressure in the Storage space 56 a. During the subsequent suction stroke of the Pump piston 18 therefore only needs a small one Amount of fuel from the fuel tank 24 to suck.
- the fuel injection device shown a second embodiment in which the basic structures the same as for the first Embodiment is and only the arrangement of the second control valve 168 is modified.
- the second Control valve 168 is arranged such that this Passage through the channel 62 from the control pressure chamber 52 in the Storage space 56 controls.
- the control pressure chamber 52 is over the Channel 60 with the throttling point 61 constantly with the line 14 connected.
- the second control valve 168 is controlled by the Controller 70 in fuel injection reversely controlled as the control valve 68 in the first Embodiment.
- the second Control valve 168 In the initial state is the second Control valve 168 opened so that the control pressure chamber 52 with the storage space 56 is connected.
- the second Control valve 168 through the control device 70 in its opened switch position.
- An interruption the fuel injection between the pre-injection and the main injection or between the main injection and the post injection becomes the second control valve 168 through the controller 70 into its closed Switch position brought so that the control pressure chamber 52 from Storage space 56 is separated and in this high pressure prevails.
- the Fuel injector can be the second Control valve 68 and 168 and the control piston 50 and the Control pressure chamber 52 is eliminated and it is only the first Control valve 58 is provided.
- the Fuel injection only through the first control valve 58 controlled during the delivery stroke of the pump piston 18 with open control valve 58 in the pump work space 22, in the line 14 and in the pressure chamber 40 no high pressure build up can and therefore no fuel injection takes place.
- at closed control valve 58 can be in the pressure chamber 40 Build up high pressure and the fuel injector 12 opens when the pressure in the pressure chamber 40 on the Injection valve member 28 generated force in the opening direction 29 is greater than the force of the closing spring 44. Zur Interruption or termination of fuel injection the control valve 58 is opened so that the pressure chamber 40th is relieved.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims (7)
- Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine mit einer Kraftstoffhochdruckpumpe (10) und einem mit dieser verbundenen Kraftstoffeinspritzventil (12) für jeden Zylinder der Brennkraftmaschine, wobei die Kraftstoffhochdruckpumpe (10) einen durch die Brennkraftmaschine in einer Hubbewegung angetriebenen Pumpenkolben (18) aufweist, der einen Pumpenarbeitsraum (22) begrenzt, welcher über eine Leitung (14) mit einem Druckraum (40) des getrennt von der Kraftstoffhochdruckpumpe (10) an der Brennkraftmaschine angeordneten Kraftstoffeinspritzventils (12) verbunden ist, das ein Einspritzventilglied (28) aufweist, durch das wenigstens eine Einspritzöffnung (32) gesteuert wird und das durch den im Druckraum (40) herrschenden Druck beaufschlagt gegen eine Schließkraft in Öffnungsrichtung (29) zur Freigabe der wenigstens einen Einspritzöffnung (32) bewegbar ist, wobei ein elektrisch betätigtes Steuerventil (58) vorgesehen ist, durch das zumindest mittelbar eine Verbindung (54) des Pumpenarbeitsraums (22) mit einem Entlastungsraum (56) gesteuert wird, dadurch gekennzeichnet, daß das Steuerventil (58) am Kraftstoffeinspritzventil (12) angeordnet ist und daß am Kraftstoffeinspritzventil (12) als Entlastungsraum ein Speicherraum (56) vorhanden ist, in dem bei geöffnetem Steuerventil (58) durch dieses abgesteuerter Kraftstoff unter Druck speicherbar ist.
- Kraftstoffeinspritzeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Volumen des Speicherraums (56) wenigstens so groß ist wie das durch den Pumpenkolben (18) während einem Förderhub geförderte Volumen.
- Kraftstoffeinspritzeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Speicherraum (56) eine nachgiebige Begrenzung (64) aufweist.
- Kraftstoffeinspritzeinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein weiteres elektrisch betätigtes Steuerventil (68;168) am Kraftstoffeinspritzventil (12) abgeordnet ist, durch das der in einem Steuerdruckraum (52) herrschende Druck gesteuert wird, wobei der Steuerdruckraum (52) durch einen Steuerkolben (50) begrenzt ist, der durch den im Steuerdruckraum (52) herrschenden Druck beaufschlagt in einer Schließrichtung auf das Einspritzventilglied (28) wirkt.
- Kraftstoffeinspritzeinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß durch das weitere Steuerventil (68) eine Verbindung (60) des Steuerdruckraums (52) zumindest mittelbar mit dem Pumpenarbeitsraum (22) gesteuert wird und daß der Steuerdruckraum (52) eine ständig geöffnete Verbindung (62) mit dem Speicherraum (56) aufweist, wobei in den Verbindungen (60;62) des Steuerdruckraums (52) vorzugsweise jeweils eine Drosselstelle (61;63) vorgesehen ist.
- Kraftstoffeinspritzeinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß durch das weitere Steuerventil (168) eine Verbindung (62) des Steuerdruckraums (52) mit dem Speicherraum (56) gesteuert wird und daß der Steuerdruckraum (52) eine ständig geöffnete Verbindung (60) zumindest mittelbar mit dem Pumpenarbeitsraum (22) aufweist, wobei in den Verbindungen (60;62) des Steuerdruckraums (52) vorzugsweise jeweils eine Drosselstelle (61;63) vorgesehen ist.
- Kraftstoffeinspritzeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Pumpenarbeitsraum (22) an der Kraftstoffhochdruckpumpe (10) eine Verbindung über einen Niederdruckbereich zu einem Kraftstoffvorratsbehälter (24) aufweist, in der ein zum Pumpenarbeitsraum (22) hin öffnendes Rückschlagventil (21) angeordnet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10155973A DE10155973A1 (de) | 2001-11-14 | 2001-11-14 | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
| DE10155973 | 2001-11-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1312792A2 true EP1312792A2 (de) | 2003-05-21 |
| EP1312792A3 EP1312792A3 (de) | 2004-09-01 |
| EP1312792B1 EP1312792B1 (de) | 2005-12-28 |
Family
ID=7705752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02022358A Expired - Lifetime EP1312792B1 (de) | 2001-11-14 | 2002-10-08 | Kraftstoffspritzeinrichtung für eine Brennkraftmaschine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6763809B2 (de) |
| EP (1) | EP1312792B1 (de) |
| DE (2) | DE10155973A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007059906A1 (de) * | 2005-11-23 | 2007-05-31 | L'orange Gmbh | Einspritzinjektor |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1359316B1 (de) * | 2002-05-03 | 2007-04-18 | Delphi Technologies, Inc. | Kraftstoffeinspritzeinrichtung |
| US7353805B2 (en) * | 2003-01-30 | 2008-04-08 | Robert Bosch Gmbh | Fuel injector pump with trapped volume |
| WO2004072470A1 (en) * | 2003-02-12 | 2004-08-26 | Robert Bosch Gmbh | Fuel injector pump system with high pressure post injection |
| DE10394151B4 (de) * | 2003-03-04 | 2015-01-08 | Robert Bosch Gmbh | Kraftstoff-Einspritzsystem mit einer Speicher-Füll-Ventilanordnung |
| ATE366359T1 (de) * | 2003-12-12 | 2007-07-15 | Delphi Tech Inc | Einspritzventil mit steuerungsventil, das den druck im steuerungsraum steuert |
| US7066151B1 (en) * | 2005-04-07 | 2006-06-27 | Robert Bosch Gmbh | Fuel injector with spill chamber |
| US10982635B2 (en) * | 2012-05-29 | 2021-04-20 | Delphi Technologies Ip Limited | Fuel injector and method for controlling the same |
| DE102024127639A1 (de) | 2024-09-24 | 2026-03-26 | Atlas Copco Ias Gmbh | Vorrichtung zum Steuern eines Ventils |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3521428A1 (de) * | 1985-06-14 | 1986-12-18 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzvorrichtung fuer brennkraftmaschinen |
| CH668621A5 (de) * | 1986-01-22 | 1989-01-13 | Dereco Dieselmotoren Forschung | Kraftstoffeinspritzanlage fuer eine brennkraftmaschine. |
| US5215060A (en) * | 1991-07-16 | 1993-06-01 | Stanadyne Automotive Corp. | Fuel system for rotary distributor fuel injection pump |
| US5732679A (en) * | 1995-04-27 | 1998-03-31 | Isuzu Motors Limited | Accumulator-type fuel injection system |
| GB9810327D0 (en) * | 1998-05-15 | 1998-07-15 | Lucas Ind Plc | Fuel system and pump suitable for use therein |
| DE19952512A1 (de) * | 1999-10-30 | 2001-05-10 | Bosch Gmbh Robert | Druckverstärker und Kraftstoffeinspritzsystem mit einem Druckverstärker |
| DE10109610A1 (de) * | 2001-02-28 | 2002-09-05 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
-
2001
- 2001-11-14 DE DE10155973A patent/DE10155973A1/de not_active Withdrawn
-
2002
- 2002-10-08 DE DE50205426T patent/DE50205426D1/de not_active Expired - Fee Related
- 2002-10-08 EP EP02022358A patent/EP1312792B1/de not_active Expired - Lifetime
- 2002-11-13 US US10/292,547 patent/US6763809B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007059906A1 (de) * | 2005-11-23 | 2007-05-31 | L'orange Gmbh | Einspritzinjektor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50205426D1 (de) | 2006-02-02 |
| EP1312792B1 (de) | 2005-12-28 |
| DE10155973A1 (de) | 2003-05-22 |
| US20030111053A1 (en) | 2003-06-19 |
| US6763809B2 (en) | 2004-07-20 |
| EP1312792A3 (de) | 2004-09-01 |
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