EP0959243A1 - Steuerventil für Kraftstoffeinspritzventil - Google Patents
Steuerventil für Kraftstoffeinspritzventil Download PDFInfo
- Publication number
- EP0959243A1 EP0959243A1 EP99109650A EP99109650A EP0959243A1 EP 0959243 A1 EP0959243 A1 EP 0959243A1 EP 99109650 A EP99109650 A EP 99109650A EP 99109650 A EP99109650 A EP 99109650A EP 0959243 A1 EP0959243 A1 EP 0959243A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- control
- valve body
- chamber
- throttle
- 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 16
- 238000002347 injection Methods 0.000 claims abstract description 43
- 239000007924 injection Substances 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000002828 fuel tank Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition 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
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
Definitions
- the invention relates to a control valve for an injection valve the type mentioned in the preamble of claim 1 for fuel injection in internal combustion engines.
- a control valve is known from EP-A-0 826 876.
- injection systems are increasingly used, where with very high injection pressures.
- Such ice spray systems are as common rail systems (for diesel engines) and HPDI injection systems (for gasoline engines) known. These injection systems are characterized by the fact that the fuel with a high pressure pump in all cylinders of the engine common pressure reservoir is promoted from which the Injectors are supplied to the individual cylinders.
- the opening and closing of the injection valves is usually Electromagnetically controlled, possibly with the help of piezo elements.
- the control valve serves to open and hydraulically Causing the actual fuel injector to close, that means in particular the beginning and the end of the Determine the injection process exactly in time.
- the injector e.g. open in a controlled manner and at the end of the injection process close quickly.
- the injection should also smallest fuel quantities for pre-injection (pilot injection) be possible before the actual injection, with which the combustion process can be optimized.
- EP-A-0 826 876 and EP-A-0 778 411 becomes a 2/2-way valve as a control valve for a common rail system used.
- a common rail system the system pressure fuel from a high pressure accumulator (not shown) via a high pressure bore 1 and an inlet bore 2 with an inlet throttle 3 to a control chamber 4 out in the injection valve body 5.
- the pressure there acts on the rear end of a movable nozzle body 6 with a nozzle needle 13 on the front End that has 6 injection holes when moving the nozzle body 7 in the injector body 5 opens and closes lead to the combustion chamber of the internal combustion engine.
- a nozzle chamber 8 which is at the front end of the nozzle body 6 is formed in the injection valve body 5.
- a bore 9 leads from the control chamber 4 in the injection valve body 5 with a discharge throttle 10 to one in the injection valve body 5 integrated control valve 12 in the form of a 2/2-way valve. From the control valve 12 there is no pressure Fuel return 14 to the fuel tank.
- the control valve 12 is via a plunger 16 from an electromagnetic and / or piezoelectric actuator 18 controlled and actuated.
- the control valve 12 controls the pressure in the control chamber 4 is exerted on the movable nozzle body 6. Is the control valve 12 is closed, is in the control chamber 4th essentially the full system pressure so that the nozzle needle 13 at the front end of the nozzle body 6, the injection holes 7 closes, which lead into the burning chamber. Becomes the actuator 18 electrically controlled, the plunger 16 exerts a force on the spring-loaded control valve 12. As a consequence of this the control valve 12 opens. With the control valve 12 open stands between high pressure accumulator, control chamber 4, control valve 12 and return 14 a steady flow. This flow leads to the individual throttles, the inlet throttle 3 and the outlet throttle 10, to a defined Pressure drop.
- the pressure drop across the inlet throttle 3 and Flow restrictor 10 are each dimensioned so that the pressure reduced in the control chamber 4. This takes the in the Control chamber 4 force acting on the nozzle body 6 while the pressure in the nozzle chamber 8 is equal to the system pressure remains, so that the injection valve hydraulically through the force exerted on the nozzle body 6 in the nozzle chamber 8 opens. This connects the nozzle chamber 8 with the Injection holes 7 made and the fuel in the Injected combustion chamber.
- EP-A-0 778 411 proposed the control valve with a pressure compensation chamber and to provide a pressure compensation piston.
- the control valve is still a hole in the injector body with a flow restrictor with the control chamber in Connection.
- a further development of this arrangement is the drain hole in a movable, spring-loaded throttle piston attached, between the control chamber and control valve is arranged.
- the arrangement for controlling the nozzle body the injection valve is extremely expensive.
- the invention is based, so the control valve to design that the control forces to be applied with simple Structure of the valve are small.
- the invention accordingly places in the injection valve body Integrated 2/2-way valve.
- the control valve according to the invention is very simple, completely in the injector body integrates and requires little control force.
- the special construction of the invention Control valve enables a minimization of the valve space volume. Form the control valve, throttles and injector body a compact unit. There are no springs or on the control valve Similar devices for the generation of prestressing are necessary.
- the control valve according to the invention can be used for the smallest stroke movements lay out with a stroke of only 20 to 40 ⁇ m.
- 2 is an injection valve with an inventive 2/2-way valve shown as a control valve.
- the control chamber 4 of the injection valve via a high pressure bore 1 and an inlet bore 2 with an inlet throttle 3 in the injection valve body 5 with the High-pressure accumulator in connection, which is at system pressure.
- the high pressure bore 1 continues to a nozzle chamber at the front end of the movable nozzle body 6, with its protrudes rear end into the control chamber 4 or one side the control chamber 4 forms.
- FIG. 2 In the embodiment of FIG. 2 according to the invention that is Control valve 12 immediately adjacent to the control chamber 4 arranged. There is a recess in the injection valve body 5 for this purpose 30 is formed, which is opposite the nozzle body 6 or the bore intended for receiving the nozzle body 6 in the longitudinal direction of the injection valve body 5 from the Control chamber 4 extends away. In the recess 30 is a Valve body 20 used. Similar to the nozzle body 6 also the valve body 20 of the control valve 12 in the longitudinal direction of the injector body 5 movable, but sealing fitted into the recess 30.
- the recess 30 is open to the control chamber 4, so that the valve body 20 inserted into the recess 30 projects into the control chamber 4 with a surface A 1 (its bottom surface) or forms a side of the control chamber 4 with this surface A 1 . As a rule, this side lies opposite the side of the control chamber 4 which is formed by the nozzle body 6.
- a bore 40 is provided through which the plunger 16 of the electromagnetic and / or piezoelectric actuator (in 2 not shown).
- the diameter of the Ram 16 is smaller than that of bore 40, and the bore 40 forms part of the unpressurized return through which the fuel from the control chamber 4 when the control valve is open 12 flows back into the fuel tank.
- the bore 40 in turn has a smaller diameter than the recess 30.
- the transition from the bore 40 in the Recess 30 is a valve seat 24 for the control valve 12 formed, on which when the control valve 12 is closed Sealing surface 22 on the top of the valve body 20, the on the side facing away from the control chamber 4 Valve body 20, comes to seal.
- valve body 20 Subsequent to the sealing surface corresponding to the valve seat 24 22 has the valve body 20 on its outer circumference radial shoulder or a radial constriction 25.
- the Constriction 25 widens in steps at a distance from the top of the valve body 20 and from the sealing surface 22 on the outer diameter of the valve body 20, the Corresponds to the inner diameter of the recess 30.
- the constriction 25 together with a radial shoulder 32 on upper end of the recess 30 at the upper end of the control valve 12 a valve chamber 26 arise.
- the constriction 25 has an annular active surface A 2 , which is opposite the active surface A 1 on the underside of the valve body 20 and which is smaller than this active surface A 1 .
- the conditions are thus similar to that of the nozzle body 6, which moves up and down in consideration of the different active surfaces at its upper or lower end depending on the pressures in the control chamber 4 and the nozzle chamber 8.
- a drain hole 27 with a Flow restrictor 28 integrated in the valve body 20.
- the drain hole 27 with the drain throttle 28 extends from the control chamber 4 to the valve chamber 26, that is to say from that adjoining the control chamber 4 or in this projecting side of the valve body 20 the constriction 25.
- valve body 20 of the control valve 12 is pressed against the valve seat 24 by the pressure in the control chamber 4, which practically corresponds to the system pressure, so that between the valve chamber 26 and the bore 40, the part of the unpressurized return to the fuel tank, there is no connection.
- the pressure in the control chamber 4 which practically corresponds to the system pressure, so that between the valve chamber 26 and the bore 40, the part of the unpressurized return to the fuel tank, there is no connection.
- the area A 1 over which the pressure acts on the valve body 20 from the side of the control chamber 4 is greater than the area A 2 over which the pressure in the valve chamber 26 acts in the opposite direction, the resulting force is directed towards the valve seat.
- the system pressure is also in the control chamber 4 on the nozzle body 6 so that the nozzle needle at the front end of the nozzle body 6 is pressed into its seat and the connection to the injection holes 7 is interrupted. Consequently, none Fuel injected into the combustion chamber.
- the stroke of the valve body 20 when lifting off the valve seat 24 and the stroke of the nozzle body opposite to this movement 6 can be adjusted so that the underside of the valve body 20 on the top of the nozzle body 6 to the system is coming. Since both are flat surfaces, the Bottom of the valve body 20 outlet bore 27 locked. As a result, essentially none flows More fuel through the return flow. Increased at the same time the pressure in the control chamber 4.
- This measure has the advantage that the leakage current of the Injector and thus the unnecessarily delivered fuel quantity reduced. However, it does not have to be provided in every case become.
- valve body 20 by the pressure in the control chamber 4, which is always is greater than the pressure in the unpressurized return connected valve chamber 26 to the valve seat 24 pressed. So that the connection to the bore 40 and unpressurized return flow interrupted, so that in the control chamber 4 can build up the full pressure again.
- the pressure in the control chamber 4 leads to a force on the nozzle body 6 Direction to the seat of the nozzle needle, which is the nozzle needle again presses into its seat and ends the injection process.
- the drain hole 27 runs with the drain throttle 28 from the bottom of the valve body 20, which to the Control chamber 4 adjoins, obliquely through the valve body 20 and opens directly into the constriction 25 below the sealing surface 22.
- valve body 20 shows an alternative embodiment of the valve body 20.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims (7)
- Steuerventil für ein Einspritzventil für die Einspritzung von Kraftstoff in eine Verbrennungskraftmaschine mit einer Steuerkammer (4), die über eine Zulaufdrossel (3) mit einem Hochdruckspeicher in Verbindung steht und die über eine Ablaufdrossel (10, 28) und das Steuerventil (12), das einen axial beweglichen Ventilkörper (20) aufweist, mit einem drucklosen Rücklauf (14) zu einem Kraftstofftank in Verbindung gebracht werden kann,
wobei die Zulaufdrossel (3) und die Ablaufdrossel (10, 28) so dimensioniert sind, daß der Druckabfall an der Zulaufdrossel (3) größer als der Druckabfall an der Ablaufdrossel (10, 28) ist,
wobei das Steuerventil (12) angrenzend an die Steuerkammer ausgebildet ist und der Ventilkörper (20) des Steuerventils (12) mit einer ersten Wirkfläche (A1) an die Steuerkammer angrenzt,
wobei der Ventilkörper (20) an einer der Steuerkammer (4) und der ersten Wirkfläche (A1) entgegengesetzten Seite eine mit einem Ventilsitz (24) zusammenwirkende Dichtfläche (22) aufweist und die Steuerkammer (4) mit dem Rücklauf (14) durch Abheben des Ventilkörpers (20) mit seiner Dichtfläche (22) von dem Ventilsitz (24) in Verbindung gebracht werden kann,
wobei der in der Steuerkammer (4) herrschende Druck auf einen beweglichen Düsenkörper (6) wirkt, der mit einer Düsennadel (13) versehen ist, die bei der Bewegung des Düsenkörpers (6) Einspritzlöcher (7) freigibt und verschließt,
dadurch gekennzeichnet,daß das Steuerventil (12) eine Ventilkammer (26) umfaßt, die entgegengesetzt zur Steuerkammer (4) angeordnet ist und mit der Steuerkammer (4) über die Ablaufdrossel (28) in Verbindung steht und eine zweite der ersten entgegengesetz wirkende Wirkfläche (A2) am Ventilkörper (20) aufweist, die kleiner ist als die erste Wirkfläche (A1), unddaß die Ventilkammer (26) in Strömungsrichtung hinter der Ablaufdrossel (28) und vor der Dichtfläche (22) mit dem zugehörigen Ventilsitz (24) angeordnet ist. - Steuerventil nach Anspruch 1, dadurch gekennzeichnet, daß die Ablaufdrossel (28) in den Ventilkörper (20) des Steuerventils (12) integriert ist.
- Steuerventil nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Wirkfläche (A2) der Ventilkammer (26) durch eine Einschnürung (25) an der Oberseite des Ventilkörpers (20) gebildet wird.
- Steuerventil nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß eine Ablaufbohrung (27) mit der Ablaufdrossel (28) im Ventilkörper (20) von der Unterseite des Ventilkörpers (20), die an die Steuerkammer (4) angrenzt, direkt zur Einschnürung (25) an der Oberseite des Ventilkörpers (20) verläuft.
- Steuerventil nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß eine Ablaufbohrung (27) mit der Ablaufdrossel (28) von der Unterseite des Ventilkörpers (20), die an die Steuerkammer (4) angrenzt, zu einer Querbohrung (29) führt, die in Höhe der Einschnürung (25) an der Oberseite des Ventilkörpers (20) senkrecht zur Längsachse des Ventilkörpers (20) verläuft und in die Einschnürung (25) einmündet.
- Steuerventil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß durch Abheben des Ventilkörpers (20) vom Ventilsitz (24) und durch Abheben der Düsennadel (13) von einem zugeordneten Sitz (15) der Düsenkörper (6) und der Ventilkörper (20) aufeinander zubewegt werden, so daß der Abfluß über die Ablaufdrossel (28) reduziert wird.
- Steuerventil nach Anspruch 6, dadurch gekennzeichnet, daß die Oberseite des Düsenkörpers (6), die der ersten Wirkfläche (A1) des Ventilkörpers (20) zugewandt ist, mindestens teilweise als Dichtfläche ausgebildet ist, wobei bei abgehobener Düsennadel (13) und abgehobenem Ventilkörper (20) die Unterseite des Ventilkörper auf der Oberseite des Düsenkörper anliegt und ein Abfluß über die Ablaufdrossel (28) unterbunden wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19822503A DE19822503C1 (de) | 1998-05-19 | 1998-05-19 | Steuerventil für Kraftstoffeinspritzventil |
DE19822503 | 1998-05-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0959243A1 true EP0959243A1 (de) | 1999-11-24 |
EP0959243B1 EP0959243B1 (de) | 2003-11-12 |
Family
ID=7868319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99109650A Expired - Lifetime EP0959243B1 (de) | 1998-05-19 | 1999-05-12 | Steuerventil für Kraftstoffeinspritzventil |
Country Status (4)
Country | Link |
---|---|
US (1) | US6145492A (de) |
EP (1) | EP0959243B1 (de) |
JP (1) | JP2000008988A (de) |
DE (2) | DE19822503C1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1091217C (zh) * | 2000-02-17 | 2002-09-18 | 上海交通大学 | 仅控制喷油开始时刻的柴油机电控燃油喷射装置 |
FR2897396A1 (fr) * | 2006-02-16 | 2007-08-17 | Renault Sas | Vanne de commande pour chambre de commande d'un injecteur a aiguille pour moteur a combustion interne |
EP2025918A1 (de) * | 2007-07-30 | 2009-02-18 | Robert Bosch GmbH | Kraftstoffeinspritzventileinrichtung |
WO2016020469A1 (de) * | 2014-08-08 | 2016-02-11 | Continental Automotive Gmbh | Drosseleinrichtung zum steuern einer einer kraftstoff-einspritzdüse zuzuführenden kraftstoffmenge sowie einspritzeinrichtung |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19859537A1 (de) * | 1998-12-22 | 2000-07-06 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
DE19901057A1 (de) * | 1999-01-14 | 2000-07-27 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE19930530B4 (de) * | 1999-07-01 | 2005-08-18 | Siemens Ag | Vorrichtung und Verfahren zum Regeln der Einspritzung von Kraftstoff durch einen Kraftstoffinjektor in einer Brennkraftmaschine |
DE19940292B4 (de) * | 1999-08-25 | 2008-03-06 | Robert Bosch Gmbh | Steuerventil für ein Kraftstoffeinspritzventil |
DE10002705A1 (de) * | 2000-01-22 | 2001-08-02 | Bosch Gmbh Robert | Vorrichtung und Verfahren zum Bereitstellen eines Systemdrucks in einer Einspritzeinrichtung |
DE10024662B4 (de) * | 2000-05-18 | 2005-12-15 | Siemens Ag | Verfahren zum Betreiben eines Einspritzventils |
DE10148874C2 (de) * | 2001-10-04 | 2003-12-24 | Siemens Ag | Düseneinrichtung, insbesondere zur Kraftstoffeinspritzung |
DE10149286C2 (de) * | 2001-10-05 | 2003-12-11 | Siemens Ag | Düseneinrichtung, insbesondere zur Kraftstoffeinspritzung |
WO2003040544A1 (de) * | 2001-11-09 | 2003-05-15 | Siemens Aktiengesellschaft | Steuermodul für einen injektor eines speichereinspritzsystems |
US6837221B2 (en) * | 2001-12-11 | 2005-01-04 | Cummins Inc. | Fuel injector with feedback control |
DE10218219A1 (de) * | 2002-04-24 | 2003-11-06 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
EP1518050B1 (de) * | 2002-07-02 | 2011-10-05 | Continental Automotive GmbH | Injektor für ein einspritzsystem |
DE10355411B3 (de) * | 2003-11-27 | 2005-07-14 | Siemens Ag | Einspritzanlage und Einspritzverfahren für eine Brennkraftmaschine |
DE102004024527A1 (de) * | 2004-05-18 | 2005-12-15 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung |
JP2006090176A (ja) * | 2004-09-22 | 2006-04-06 | Denso Corp | インジェクタ |
DE102005024870A1 (de) * | 2005-05-31 | 2006-12-07 | Siemens Ag | Injektor für eine Brennkraftmaschine |
DE102005025139A1 (de) * | 2005-06-01 | 2006-12-07 | Siemens Ag | Injektor für eine Brennkraftmaschine |
DE102005026967B4 (de) * | 2005-06-10 | 2014-09-25 | Siemens Aktiengesellschaft | Ventil, insbesondere Servoventil |
US7464697B2 (en) * | 2005-08-19 | 2008-12-16 | The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency | High-pressure fuel intensifier system |
US7415969B2 (en) * | 2006-02-28 | 2008-08-26 | Caterpillar Inc. | Fuel injector having recessed check top |
CN104612873A (zh) * | 2014-12-29 | 2015-05-13 | 沪东重机有限公司 | 船用低速机双电磁阀控制的重油高压共轨燃油喷射系统 |
JP6962039B2 (ja) * | 2017-07-12 | 2021-11-05 | 株式会社デンソー | 燃料噴射装置 |
US11933257B2 (en) * | 2022-03-18 | 2024-03-19 | Caterpillar Inc. | Fuel injector lift control |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0778411A2 (de) | 1995-12-05 | 1997-06-11 | Denso Corporation | Elektromagnetventil und Kraftstoffeienspritzventil für Brennkraftmaschinen |
DE19624001A1 (de) * | 1996-06-15 | 1997-12-18 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
EP0826876A1 (de) | 1996-08-31 | 1998-03-04 | Isuzu Motors Limited | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
DE19740997A1 (de) * | 1996-09-17 | 1998-03-19 | Nippon Soken | Speicher-Kraftstoffeinspritzsystem für eine Brennkraftmaschine mit innerer Verbrennung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4899935A (en) * | 1988-03-14 | 1990-02-13 | Yamaha Hatsudoki Kabushiki Kaisha | Valve support for accumulator type fuel injection nozzle |
US5301875A (en) * | 1990-06-19 | 1994-04-12 | Cummins Engine Company, Inc. | Force balanced electronically controlled fuel injector |
US5647536A (en) * | 1995-01-23 | 1997-07-15 | Cummins Engine Company, Inc. | Injection rate shaping nozzle assembly for a fuel injector |
US5860597A (en) * | 1997-03-24 | 1999-01-19 | Cummins Engine Company, Inc. | Injection rate shaping nozzle assembly for a fuel injector |
DE29708369U1 (de) * | 1997-05-09 | 1997-07-10 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Steuerbares Einspritzventil für die Kraftstoffeinspritzung an Brennkraftmaschinen |
-
1998
- 1998-05-19 DE DE19822503A patent/DE19822503C1/de not_active Expired - Fee Related
-
1999
- 1999-05-12 DE DE59907682T patent/DE59907682D1/de not_active Expired - Lifetime
- 1999-05-12 EP EP99109650A patent/EP0959243B1/de not_active Expired - Lifetime
- 1999-05-19 US US09/314,191 patent/US6145492A/en not_active Expired - Lifetime
- 1999-05-19 JP JP11139117A patent/JP2000008988A/ja not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0778411A2 (de) | 1995-12-05 | 1997-06-11 | Denso Corporation | Elektromagnetventil und Kraftstoffeienspritzventil für Brennkraftmaschinen |
DE19624001A1 (de) * | 1996-06-15 | 1997-12-18 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
EP0826876A1 (de) | 1996-08-31 | 1998-03-04 | Isuzu Motors Limited | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
DE19740997A1 (de) * | 1996-09-17 | 1998-03-19 | Nippon Soken | Speicher-Kraftstoffeinspritzsystem für eine Brennkraftmaschine mit innerer Verbrennung |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1091217C (zh) * | 2000-02-17 | 2002-09-18 | 上海交通大学 | 仅控制喷油开始时刻的柴油机电控燃油喷射装置 |
FR2897396A1 (fr) * | 2006-02-16 | 2007-08-17 | Renault Sas | Vanne de commande pour chambre de commande d'un injecteur a aiguille pour moteur a combustion interne |
EP2025918A1 (de) * | 2007-07-30 | 2009-02-18 | Robert Bosch GmbH | Kraftstoffeinspritzventileinrichtung |
WO2016020469A1 (de) * | 2014-08-08 | 2016-02-11 | Continental Automotive Gmbh | Drosseleinrichtung zum steuern einer einer kraftstoff-einspritzdüse zuzuführenden kraftstoffmenge sowie einspritzeinrichtung |
CN106662056A (zh) * | 2014-08-08 | 2017-05-10 | 大陆汽车有限公司 | 用于控制待供给至燃料喷嘴的燃料的量的节流装置以及喷射装置 |
US10240566B2 (en) | 2014-08-08 | 2019-03-26 | Continental Automotive Gmbh | Throttle device for controlling an amount of fuel to be supplied to a fuel injection nozzle, as well as an injection device |
CN106662056B (zh) * | 2014-08-08 | 2020-03-27 | 大陆汽车有限公司 | 控制待供给至燃料喷嘴的燃料量的节流装置以及喷射装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0959243B1 (de) | 2003-11-12 |
JP2000008988A (ja) | 2000-01-11 |
US6145492A (en) | 2000-11-14 |
DE59907682D1 (de) | 2003-12-18 |
DE19822503C1 (de) | 1999-11-25 |
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