WO2003078828A1 - Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine - Google Patents
Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine Download PDFInfo
- Publication number
- WO2003078828A1 WO2003078828A1 PCT/DE2002/004606 DE0204606W WO03078828A1 WO 2003078828 A1 WO2003078828 A1 WO 2003078828A1 DE 0204606 W DE0204606 W DE 0204606W WO 03078828 A1 WO03078828 A1 WO 03078828A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control
- fuel injection
- chamber
- fuel
- connection
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 106
- 239000007924 injection Substances 0.000 title claims abstract description 106
- 239000000446 fuel Substances 0.000 title claims abstract description 87
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 27
- 230000015572 biosynthetic process Effects 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
- 239000002828 fuel tank Substances 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
- 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
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- 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
- F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
-
- 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
- F02M2200/28—Details of throttles in fuel-injection apparatus
Definitions
- the invention is based on one
- Such a fuel injection device is known from EP 0 987 431 A2.
- This fuel injection device has a high-pressure fuel pump and a fuel injection valve connected to it for each cylinder of the internal combustion engine.
- the high-pressure fuel pump has a pump piston which is driven by the internal combustion engine in a stroke movement and delimits a pump working space.
- the fuel injection valve has a pressure chamber connected to the pump work chamber and an injection valve member, through which at least one injection opening is controlled and which can be moved in the opening direction to release the at least one injection opening by the pressure prevailing in the pressure chamber against a closing force.
- a first electrically operated control valve is provided, by means of which a connection of the pump work space to a relief space is controlled.
- a second electrically actuated control valve is also provided, by means of which a connection of a control pressure chamber to a relief chamber is controlled.
- the control pressure chamber is connected to the pump work chamber via a throttling point.
- the control pressure chamber is delimited by a control piston which is supported on the injection valve member and which is in a closing direction by the pressure prevailing in the control pressure chamber of the injection valve member and.
- the first control valve is closed and the second control valve is opened, so that no high pressure can build up in the control pressure chamber and the fuel injection valve can open.
- the fuel injection device according to the invention with the features according to claim 1 has the advantage that when opened for Kra tscherin injection second control valve and thus open fuel injector with the bypass connection only a small
- Fuel injection device is increased. At the beginning or end of the fuel injection, a quick opening or closing of the
- Fuel injection valve achieved which is due to a controlled by the main connection with large
- FIG. 2 shows a detail designated by II in FIG. 1 in an enlarged representation with the valve closed
- Fuel injector Figure 3 shows the detail II with the fuel injector open and Figure 4 the
- the internal combustion engine is preferably a self-igniting internal combustion engine.
- the fuel injection device is preferably designed as a so-called pump-nozzle unit and has for each cylinder of the internal combustion engine a high-pressure fuel pump 10 and a fuel injection valve 12 connected to it, which form a common structural unit.
- the fuel injection device is preferably designed as a so-called pump-nozzle unit and has for each cylinder of the internal combustion engine a high-pressure fuel pump 10 and a fuel injection valve 12 connected to it, which form a common structural unit.
- Fuel injection device can also be designed as a so-called pump-line-nozzle system, in which the high-pressure fuel pump and the fuel injection valve of each cylinder are arranged separately from one another and above a line are connected.
- the high-pressure fuel pump 10 has a pump body 14 with a cylinder bore 16, in which a pump piston 18 is tightly guided, which is driven at least indirectly by a cam 20 of a camshaft of the internal combustion engine against the force of a return spring 19 in a lifting movement.
- the pump piston 18 delimits a pump working chamber 22 in the cylinder bore 16, in which fuel is compressed under high pressure during the delivery stroke of the pump piston 18.
- the pump working chamber 22 is supplied with fuel from a fuel tank 24 of the motor vehicle.
- the fuel injection valve 12 has a valve body 26 which is connected to the pump body 14 and which can be constructed in several parts and in which an injection valve member 28 is guided so as to be longitudinally displaceable in a bore 30.
- the valve body 26 has at least one, preferably a plurality of injection openings 32 on its end region facing the combustion chamber of the cylinder of the internal combustion engine.
- the injection valve member 28 has at its end region facing the combustion chamber an, for example, approximately conical sealing surface 34 which interacts with a valve seat 36 formed in the valve body 26 in its end region facing the combustion chamber, from or after which the injection openings 32 lead away.
- valve body 26 there is an annular space 38 between the injection valve member 28 and the bore 30 towards the valve seat 36, which in its end region facing away from the valve seat 36 merges into a pressure space 40 surrounding the injection valve member 28 by radial expansion of the bore 30.
- the injection valve member 28 has a pressure shoulder 42 at the level of the pressure chamber 40 by reducing the cross section.
- a prestressed closing spring 44 engages, 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, which adjoins the bore 30.
- a control piston 50 is tightly connected, which is connected to the injection valve member 28.
- a control pressure chamber 52 is delimited in the bore 48 by the control piston 50 as a movable wall.
- the control piston 50 is supported on the injection valve member 28 via a piston rod 51 which is smaller in diameter than this and can be connected to the injection valve member 28.
- the control piston 50 can be formed in one piece with the injection valve member 28, but is preferably connected to the injection valve member 28 as a separate part for reasons of assembly.
- a channel 60 leads from the pump work chamber 22 through the pump body 14 and the valve body 26 to the pressure chamber 40 of the fuel injection valve 12.
- a channel 62 leads from the pump work chamber 22 or from the channel 60 to the control pressure chamber 52 , which forms a connection to a relief chamber, which can serve at least indirectly as the fuel reservoir 24 or another area in which a low pressure prevails.
- a connection 66 leads from the pump work chamber 22 or from the channel 60 to a relief chamber 24, which is controlled by a first electrically operated control valve 68.
- the control valve 68 can, as shown in FIG. 1, be designed as a 2/2 way valve.
- connection 64 of the control pressure chamber 52 to the relief chamber 24 is controlled by a second electrically operated control valve 70, which can be designed as a 2/2-way valve.
- a throttle point 63 is provided in the connection 62 of the control pressure chamber 52 with the Pump work chamber 22, a throttle point 63 is provided.
- the control valves 68, 70 can have an electromagnetic actuator or a piezo actuator and are controlled by an electronic control device 72.
- a housing part in the form of an intermediate disk 54 is arranged, which forms a boundary of the control pressure chamber 52 on its side facing away from the injection valve member 28.
- the surface 53 of the intermediate disk 54 delimiting the control pressure space 52 is arranged transversely, preferably at least approximately perpendicular to the longitudinal axis 49 of the control piston 50.
- the channel 62 from the channel 60 to the control pressure chamber 52 is formed in the intermediate disk 54 and the throttle point 63 is designed as a throttle bore in the channel 62 in the intermediate disk 54. As shown in FIG.
- the throttle bore 63 opens into an edge region of the control pressure chamber 52 offset from the longitudinal axis 49 of the control piston 50.
- a bore 55 is arranged in the intermediate disk 54, which is a drain from the control pressure chamber 52 Forms part of the connection 64 of the control pressure chamber 52 to the relief chamber 24.
- the control piston 50 has an annular sealing surface 57 on its end face facing the intermediate disc 54, which forms a narrow ring web and is raised in relation to the end face of the control piston 50.
- the annular sealing surface 57 is arranged on a smaller diameter than the outer diameter of the control piston 50.
- the control piston 50 can be designed in such a way that its diameter decreases towards the end face with the sealing surface 57.
- a recess 58 can be formed within the sealing surface 57 in the end face of the control piston 50 can be formed by a blind bore.
- the sealing surface 57 is arranged at least approximately coaxially to the bore 55 in the intermediate disk 54 and is arranged on a larger diameter than the diameter of the bore 55.
- the throttle bore 63 in the intermediate disk 54 opens into the control pressure chamber 52 outside the sealing surface 57 of the control piston 50.
- the bore 55 in the intermediate disk 54 forms a discharge from the control pressure chamber 52 to the second control valve 70 and via this to the sealing surface 57 of the control piston 50 Relief chamber 24.
- the bore 55 is arranged at least approximately coaxially with the control piston 50.
- a bypass connection 80 leading from the control pressure chamber 52 is formed, which opens into the connection 64 to the relief chamber 24.
- the opening of the bypass connection 80 into the control pressure chamber 52 is, as shown in FIG. 4, viewed in the direction of the longitudinal axis 49 of the control piston 50 outside the sealing surface 57 of the control piston 50.
- a throttle point 82 is arranged in the bypass connection 80 and is designed as a throttle bore. The flow cross section of the bypass connection 80 with the throttle point 82 is substantially smaller than the flow cross section of the bore 55.
- the injection valve member 28 When the fuel injection valve 12 is closed, the injection valve member 28 is in a closed position, in which it rests with its sealing surface 34 on the valve seat 36 and closes the injection openings 32. Accordingly, the control piston 50 is then in a stroke position, in which it is arranged with its sealing surface 57 at a distance from the surface 53 of the intermediate disk 54 which forms the boundary of the control pressure space 52, as shown in FIG. 2. Between the sealing surface 57 of the control piston 50 and the surface 53 of the washer 54, a large flow cross-section 84 is released for the connection 64 of the control pressure chamber 52 to the second control valve 70. The inflow of fuel into the control pressure chamber 52 from the channel 60 via the channel 62 and the Throttle bore 63 is limited by the throttle bore 63.
- the injection valve member 28 When the fuel injection valve 12 is open, the injection valve member 28 is in an open position, in which it is arranged with its sealing surface 34 at a distance from the valve seat 36 and opens the injection openings 32.
- the control piston 50 is then in a stroke position, in which it rests with its sealing surface 57 on the surface 53 of the intermediate disk 54, as shown in FIG. 3.
- the surface 53 of the intermediate disk 54 thus forms a valve seat in the form of a flat seat, with which the sealing surface 57 of the control piston 50 interacts.
- the edge of the sealing surface 57 is essentially only in contact with the surface 53 of the intermediate disk 54, as a result of which line contact with high surface pressure and thus reliable sealing is achieved.
- the main connection 84 from the control chamber 52 to the bore 55 in the intermediate disk 54 is controlled as a connection between the control pressure chamber 52 and the second control valve 70 and the relief chamber 24.
- This main connection 84 is opened when the fuel injection valve 12 is closed and closed when the fuel injection valve 12 is open.
- the control piston 50 rests with its sealing surface 57 on the surface 53 of the intermediate plate 54 and closes the main connection 84, only the bypass connection 80 in the intermediate plate 54 is still open, the flow cross section of which is determined by the throttle bore 82 and which is significantly smaller than that Flow cross-section of the main connection 84 when it is open.
- the cross section of the throttle bore 63 of the connection 62 in the intermediate disk 54 and the throttle bore 82 in the bypass connection 80 in the intermediate disk 54 are matched to one another in a suitable manner for optimal functioning of the fuel injection device.
- Fuel injector explained. During the suction stroke of the pump piston 18, this fuel is supplied from the fuel reservoir 24. During the delivery stroke of the pump piston 18, the fuel injection begins with a pre-injection, the first control valve 68 being closed by the control device 72, so that the pump working chamber 22 is separated from the relief chamber 24. The control device 72 also opens the second control valve 70 so that the control pressure chamber 52 is connected to the relief chamber 24. In this case, no high pressure can build up in the control pressure chamber 52, since this is relieved towards the relief chamber 24. If the pressure in the pump work chamber 22 and thus in the pressure chamber 40 of the fuel injector 12 is so great that the pressure on the pressure shoulder 42 on it
- Injection valve member 28 is greater than the sum of the force of the closing spring 44 and the pressure force acting on the control piston 50 by the residual pressure acting in the control pressure chamber 52, the injection valve member 28 moves in the opening direction 29 and gives the at least one injection opening 32 free.
- the control piston 50 assumes its stroke position shown in FIG. 3, so that only the bypass connection 80 is released via the throttle bore 82 with a small flow cross section. Only a small portion of the fuel delivered by the pump piston 18 can flow out into the relief chamber 24 via the throttle bore 63 and the bypass connection 80 with the throttle bore 82 and the opened second control valve 70. It can also be provided that the fuel injection valve 12 for pre-injection only with a partial stroke of the
- Injection valve member 28 opens so that the control piston 50 with its sealing surface 57 does not come into contact with the intermediate disk 54 and does not completely close the main connection 84, but the flow cross section of the main connection is reduced.
- the second control valve 70 is closed by the control device, so that the control pressure chamber 52 is separated from the relief chamber 24.
- the first control valve 68 remains in its closed position. High pressure builds up in the control pressure chamber 52 as in the pump work chamber 22, so that a large pressure force acts in the closing direction on the control piston 50 and the injection valve member 28 is moved into its closed position.
- the second control valve 70 is opened by the control device 72 for a subsequent main injection.
- the fuel injection valve 12 then opens due to the reduced pressure force on the control piston 50 and the injection valve member 28 moves over its maximum opening stroke into its opening position.
- the large flow cross-section is first released through the main connection 84 through the control piston 50 until the Injection valve member 28 is opened with its maximum opening stroke and the control piston 50 with its sealing surface 57 bears against the surface 53 of the intermediate disk 54 and the main connection 84 closes and only the bypass connection 80 is released via the throttle bore 82.
- This enables the fuel injection valve 12 to be opened quickly.
- the fuel injection valve 12 is fully open, only a small amount of fuel can flow out to the relief chamber 24 via the throttle bore 63 and the throttle bore 82, so that only a small part of the fuel delivered by the pump piston 18 is not available for the injection.
- the second control valve 70 is brought into its closed switching position by the control device 72, so that the control pressure chamber 52 is separated from the relief chamber 24 and builds up in this high pressure and the fuel injection valve 12 is closed via the force acting on the control piston 50.
- the main connection 84 with a large flow cross section is released by the control piston 50, so that the pressure in the control pressure chamber 52 rises quickly and a high pressure force acts on the control piston 50, so that the fuel injection valve 12 closes quickly.
- the second control valve 70 is opened again by the control device 72, so that the fuel injection valve 12 opens as a result of the reduced pressure in the control pressure chamber 52.
- the second control valve 70 is closed and / or the first control valve 68 is opened.
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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
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/477,837 US6892955B2 (en) | 2002-03-15 | 2002-12-17 | Fuel injection device for an internal combustion engine |
JP2003576805A JP4173821B2 (ja) | 2002-03-15 | 2002-12-17 | 内燃機関用の燃料噴射装置 |
EP02795011A EP1490592B1 (de) | 2002-03-15 | 2002-12-17 | Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine |
BR0209654-4A BR0209654A (pt) | 2002-03-15 | 2002-12-17 | Conjunto injetor de combustìvel para motor de combustão |
DE50203649T DE50203649D1 (de) | 2002-03-15 | 2002-12-17 | Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10211439A DE10211439A1 (de) | 2002-03-15 | 2002-03-15 | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10211439.0 | 2002-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003078828A1 true WO2003078828A1 (de) | 2003-09-25 |
Family
ID=27797791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/004606 WO2003078828A1 (de) | 2002-03-15 | 2002-12-17 | Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6892955B2 (de) |
EP (1) | EP1490592B1 (de) |
JP (1) | JP4173821B2 (de) |
BR (1) | BR0209654A (de) |
DE (2) | DE10211439A1 (de) |
WO (1) | WO2003078828A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007100425A1 (en) * | 2006-02-28 | 2007-09-07 | Caterpillar Inc. | Fuel injector having recessed check top |
WO2008049665A1 (de) * | 2006-10-23 | 2008-05-02 | Robert Bosch Gmbh | Kraftstoffeinspritzventileinrichtung |
EP2085604A1 (de) * | 2008-02-04 | 2009-08-05 | Robert Bosch GmbH | Injektor zum Einspritzen von Kraftstoff |
WO2019068567A1 (en) * | 2017-10-04 | 2019-04-11 | Delphi Technologies Ip Limited | FUEL INJECTOR |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004028195A1 (de) * | 2004-06-09 | 2005-12-29 | Volkswagen Mechatronic Gmbh & Co. Kg | Einspritzventil mit Schließdruckbeaufschlagung der Ventilnadel |
DE502005010779D1 (de) * | 2004-12-03 | 2011-02-10 | Ganser Hydromag | Brennstoffeinspritzventil mit druckverstärkung |
DE102005014180A1 (de) * | 2005-03-29 | 2006-10-05 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE102006027330A1 (de) * | 2006-06-13 | 2007-12-20 | Robert Bosch Gmbh | Kraftstoffinjektor |
JP5043761B2 (ja) * | 2008-06-18 | 2012-10-10 | 本田技研工業株式会社 | 燃料噴射装置 |
JP5152220B2 (ja) * | 2010-02-18 | 2013-02-27 | 株式会社デンソー | 燃料噴射装置 |
JP5327117B2 (ja) * | 2010-03-24 | 2013-10-30 | 株式会社デンソー | 燃料噴射装置 |
JP5732834B2 (ja) * | 2010-03-31 | 2015-06-10 | 株式会社デンソー | 燃料噴射装置 |
JP5625837B2 (ja) | 2010-03-31 | 2014-11-19 | 株式会社デンソー | 燃料噴射装置 |
JP5375762B2 (ja) * | 2010-07-14 | 2013-12-25 | 株式会社デンソー | 燃料噴射装置 |
JP5304861B2 (ja) * | 2010-12-17 | 2013-10-02 | 株式会社デンソー | 燃料噴射装置 |
JP5752410B2 (ja) * | 2010-12-27 | 2015-07-22 | 株式会社 Acr | ディーゼルエンジン用のユニットインジェクタ |
JP5310806B2 (ja) * | 2011-01-07 | 2013-10-09 | 株式会社デンソー | 燃料噴射装置 |
US10982635B2 (en) * | 2012-05-29 | 2021-04-20 | Delphi Technologies Ip Limited | Fuel injector and method for controlling the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0745764A2 (de) * | 1995-06-02 | 1996-12-04 | Ganser-Hydromag Ag | Brennstoffeinspritzventil für Verbrennungskraftmaschinen |
US5860597A (en) * | 1997-03-24 | 1999-01-19 | Cummins Engine Company, Inc. | Injection rate shaping nozzle assembly for a fuel injector |
EP0987431A2 (de) * | 1998-09-18 | 2000-03-22 | Lucas Industries Limited | Kraftstoffeinspritzventil |
WO2001014712A1 (de) * | 1999-08-20 | 2001-03-01 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6189509B1 (en) * | 1997-07-16 | 2001-02-20 | Cummins Wartsila S.A. | Device for injecting fuel into a diesel engine |
DE19826791A1 (de) * | 1998-06-16 | 1999-12-23 | Bosch Gmbh Robert | Ventilsteuereinheit für ein Kraftstoffeinspritzventil |
DE10160263A1 (de) * | 2001-12-07 | 2003-06-18 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
-
2002
- 2002-03-15 DE DE10211439A patent/DE10211439A1/de not_active Withdrawn
- 2002-12-17 WO PCT/DE2002/004606 patent/WO2003078828A1/de active IP Right Grant
- 2002-12-17 DE DE50203649T patent/DE50203649D1/de not_active Expired - Lifetime
- 2002-12-17 US US10/477,837 patent/US6892955B2/en not_active Expired - Fee Related
- 2002-12-17 EP EP02795011A patent/EP1490592B1/de not_active Expired - Lifetime
- 2002-12-17 JP JP2003576805A patent/JP4173821B2/ja not_active Expired - Fee Related
- 2002-12-17 BR BR0209654-4A patent/BR0209654A/pt active Search and Examination
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0745764A2 (de) * | 1995-06-02 | 1996-12-04 | Ganser-Hydromag Ag | Brennstoffeinspritzventil für Verbrennungskraftmaschinen |
US5860597A (en) * | 1997-03-24 | 1999-01-19 | Cummins Engine Company, Inc. | Injection rate shaping nozzle assembly for a fuel injector |
EP0987431A2 (de) * | 1998-09-18 | 2000-03-22 | Lucas Industries Limited | Kraftstoffeinspritzventil |
WO2001014712A1 (de) * | 1999-08-20 | 2001-03-01 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007100425A1 (en) * | 2006-02-28 | 2007-09-07 | Caterpillar Inc. | Fuel injector having recessed check top |
US7415969B2 (en) | 2006-02-28 | 2008-08-26 | Caterpillar Inc. | Fuel injector having recessed check top |
GB2449014A (en) * | 2006-02-28 | 2008-11-05 | Caterpillar Inc | Fuel injector having recessed check top |
GB2449014B (en) * | 2006-02-28 | 2010-12-01 | Caterpillar Inc | Fuel injector having recessed check top |
WO2008049665A1 (de) * | 2006-10-23 | 2008-05-02 | Robert Bosch Gmbh | Kraftstoffeinspritzventileinrichtung |
EP2085604A1 (de) * | 2008-02-04 | 2009-08-05 | Robert Bosch GmbH | Injektor zum Einspritzen von Kraftstoff |
WO2019068567A1 (en) * | 2017-10-04 | 2019-04-11 | Delphi Technologies Ip Limited | FUEL INJECTOR |
Also Published As
Publication number | Publication date |
---|---|
DE10211439A1 (de) | 2003-10-02 |
DE50203649D1 (de) | 2005-08-18 |
BR0209654A (pt) | 2004-12-07 |
US6892955B2 (en) | 2005-05-17 |
EP1490592A1 (de) | 2004-12-29 |
JP4173821B2 (ja) | 2008-10-29 |
US20040144366A1 (en) | 2004-07-29 |
EP1490592B1 (de) | 2005-07-13 |
JP2005520968A (ja) | 2005-07-14 |
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