DE19732070A1 - Direct-injection fuel injector with solenoid valve control for a multi-cylinder internal combustion engine - Google Patents
Direct-injection fuel injector with solenoid valve control for a multi-cylinder internal combustion engineInfo
- Publication number
- DE19732070A1 DE19732070A1 DE19732070A DE19732070A DE19732070A1 DE 19732070 A1 DE19732070 A1 DE 19732070A1 DE 19732070 A DE19732070 A DE 19732070A DE 19732070 A DE19732070 A DE 19732070A DE 19732070 A1 DE19732070 A1 DE 19732070A1
- Authority
- DE
- Germany
- Prior art keywords
- valve body
- valve
- control piston
- fuel injection
- 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
- 238000002347 injection Methods 0.000 title claims description 28
- 239000007924 injection Substances 0.000 title claims description 28
- 239000000446 fuel Substances 0.000 title claims description 14
- 238000002485 combustion reaction Methods 0.000 title claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003936 working memory Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
- F02M63/0005—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using valves actuated by fluid 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
- 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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
- F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
Landscapes
- 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)
Description
Die Erfindung betrifft ein direkteinspritzendes Kraftstoffein spritzventil mit Magnetventilsteuerung für eine mehrzylindrige Brennkraftmaschine, mit einem Steuerkolben und einem mit diesem zusammenwirkenden Ventilkörper in einem Ventilgehäuse, mit ei ner zum Ventilkörper führenden Hochdruckleitung, die bei geöff netem Ventilkörper mit einer Zuführleitung verbindbar ist, wel che in eine eine Düsennadel umgebende Druckkammer mündet, und mit einer im Steuerkolben und Ventilkörper verlaufenden Durch gangsbohrung, über die ein von dem Steuerkolben begrenzter Steuerraum mit der Hochdruckleitung unter Zwischenschaltung ei ner Zulaufdrossel ständig verbunden ist, wobei der druckbeauf schlagte Steuerraum durch das die Einspritzung beeinflussende Magnetventil entlastbar ist, ferner mit einer eine Drosselstel le aufweisenden Rücklaufleitung.The invention relates to direct injection fuel Spray valve with solenoid valve control for a multi-cylinder Internal combustion engine, with a control piston and with this interacting valve body in a valve housing, with egg ner to the valve body leading high pressure line, which is open netem valve body is connected to a supply line, wel che opens into a pressure chamber surrounding a nozzle needle, and with a passage running in the control piston and valve body gear bore through which a delimited by the control piston Control room with the high pressure line with the interposition of egg ner inlet throttle is constantly connected, the pressurized struck the control room by influencing the injection Solenoid valve can be relieved, also with a throttle return line.
Ein derartiges magnetventilgesteuertes Kraftstoffeinspritzven til ist aus der DE 196 12 738 A1 bekannt, bei dem der Steuer kolben mit integriertem Ventilkörper in zwei Gehäuseteilen ge führt ist und mit der Rückseite der Düsennadel in direkter Ver bindung steht. Der Ventilkörper ist von einem Ringraum umgeben, in den einerseits die Zuführleitung und andererseits eine ge drosselte Rücklaufleitung mündet. Such a solenoid valve-controlled fuel injection valve Til is known from DE 196 12 738 A1, in which the tax piston with integrated valve body in two housing parts leads and with the back of the nozzle needle in direct Ver bond stands. The valve body is surrounded by an annulus, in the one hand the feed line and on the other hand a ge throttled return line opens.
Bei Systemen dieser Art wird durch den gedrosselten Rücklauf die zur Einspritzdüse führende Hochdruckleitung dauerentlastet, nämlich durch die ständige Verbindung von der Zuführleitung über den Ringraum zur Rücklaufleitung.In systems of this type, the throttled return permanently relieves the high pressure line leading to the injection nozzle, namely through the constant connection from the supply line via the annulus to the return line.
Der Erfindung liegt die Aufgabe zugrunde, durch bauaufwandarme Maßnahmen an jedem gattungsgemäßen Kraftstoffeinspritzventil zu erreichen, daß der Gesamtwirkungsgrad des Einspritzsystems we sentlich verbessert werden kann.The invention has for its object through low construction costs Measures on each generic fuel injector achieve that the overall efficiency of the injection system we can be significantly improved.
Zur Lösung der Aufgabe dienen die im Kennzeichen des Patentan spruchs 1 angegebenen Merkmale.To solve the problem serve the in the characteristics of the patent pronounced 1 specified characteristics.
In den Unteransprüchen sind noch vorteilhafte Weiterbildungen der Erfindung angegeben.Advantageous further developments are in the subclaims specified the invention.
Durch die erfindungsgemäßen Maßnahmen wird eine Dauerentlastung während der Einspritzung vermieden, nämlich durch die steuerba re Verbindung zwischen der zur Einspritzdüse führenden Zuführ leitung und der mit dem Niederdrucksystem verbundenen Rücklauf leitung, d. h. eine Entlastung findet lediglich zwischen den Einspritzungen, jedoch nicht während der Einspritzung statt. Somit verringert sich in erheblichem Maße die Rückführmenge.The measures according to the invention provide permanent relief avoided during the injection, namely by the controllable re connection between the feed leading to the injection nozzle line and the return connected to the low pressure system management, d. H. discharge only takes place between the Injections, but not during the injection. The return quantity is thus reduced considerably.
Die Erfindung ist in der Zeichnung dargestellt und wird im fol genden anhand von zwei Ausführungsbeispielen näher erläutert. Es zeigenThe invention is shown in the drawing and is in fol ing explained in more detail using two exemplary embodiments. Show it
Fig. 1 das erfindungsgemäße Kraftstoffeinspritzventil im Längsschnitt, Fig. 1 fuel injection valve in longitudinal section according to the invention,
Fig. 2 den oberen Bereich des Kraftstoffeinspritzventiles in stark vergrößerter Darstellung im Schnitt und Fig. 2 shows the upper area of the fuel injection valve in a greatly enlarged view in section and
Fig. 3 eine andere Ausgestaltung des Kraftstoffeinspritz ventiles, und zwar ebenfalls den oberen Bereich in ver größerter Darstellung. Fig. 3 shows another embodiment of the fuel injection valve, and also the upper area in a larger view.
Ein magnetventilgesteuertes direkteinspritzendes Kraftstoffein spritzventil 1 gemäß Fig. 1, das vorzugsweise für nach dem Com mon Rail-Prinzip arbeitende Speichereinspritzsysteme von mehr zylindrigen Brennkraftmaschinen zum Einsatz kommt, setzt sich aus einem mehrteiligen Ventilgehäuse 2, einem in einer stufig ausgebildeten zylindrischen Ausnehmung 3 des Ventilgehäuses 2 längsverschiebbar geführten Steuerkolben 4 und einem mit diesem zusammenwirkenden Ventilkörper 5 sowie einer von Ventilkörper 5 und Steuerkolben 4 räumlich getrennten federbelasteten Düsenna del 6 zusammen.A solenoid-valve-controlled direct-injection end Kraftstoffein injection valve 1 according to Fig. 1, preferably after the Com mon rail principle working memory injection of more cylinder internal combustion engine is used, is composed of a multi-part valve housing 2, one in a stage formed cylindrical recess 3 of the valve housing 2 longitudinally displaceably guided control piston 4 and a valve body 5 interacting with this and a valve body 5 and control piston 4 spatially separated spring-loaded nozzle piston 6 del together.
Der Ventilkörper 5 ist als Ventilkolben ausgebildet und liegt koaxial zum durchmessermäßig größeren Steuerkolben 4, der eine Durchgangsbohrung 7 aufweist, an die sich eine im Ventilkörper angeordnete Durchgangsbohrung 8 anschließt. Steuerkolben 4 und Ventilkolben 5 sind beide im einteiligen Gehäuseteil des Ven tilgehäuses 2 untergebracht.The valve body 5 is designed as a valve piston and is coaxial with the larger-diameter control piston 4 , which has a through bore 7 , to which a through bore 8 arranged in the valve body connects. Control piston 4 and valve piston 5 are both housed in the one-piece housing part of the Ven tilgehäuses 2 .
Der Steuerkolben 4 begrenzt auf seiner Rückseite einen Steuer raum 9, in den eine Zulaufdrossel 10 der Durchgangsbohrung 7 einmündet. Durch die Anordnung der Zulaufdrossel 10 wird sich bei Entlastung des Steuerraumes 9 am hochdruckseitigen Ende des Ventilkolbens ein höherer Druck als im Steuerraum 9 einstellen, der ein Abheben des Ventilkörpers 5 von seinem Ventilsitz 12 bewirkt.The control piston 4 delimits a control chamber 9 on its rear side, into which an inlet throttle 10 of the through bore 7 opens. The arrangement of the inlet throttle 10 will result in a higher pressure than in the control chamber 9 when the control chamber 9 is relieved at the high-pressure end of the valve piston, which causes the valve body 5 to be lifted off its valve seat 12 .
Der Steuerraum 9 steht über die beiden koaxial zueinander lie genden Durchgangsbohrungen 7,8 mit einer in dem Ventilgehäuse 2 radial verlaufenden Hochdruckleitung 11 in Verbindung. Der Ven tilkolben ist mit einer dem kegelförmigen Ventilsitz 12 im Ven tilgehäuse 2 angepaßten kegelförmigen Sitzfläche 13 versehen.The control chamber 9 is connected via the two coaxial through holes 7 , 8 to a radial high pressure line 11 in the valve housing 2 . The Ven tilkolben is provided with a conical valve seat 12 in the Ven tilgehäuse 2 adapted conical seat 13 .
An diese Kegelform schließt sich ein am Ventilkolben ausgebil deter zylindrischer Zapfen 14 an und begrenzt einen Ringraum 15, von dem eine Zuführleitung 16 wegführt, welche in einen die federbelastete Düsennadel 6 umgebenden Druckraum 17 mündet.This conical shape is followed by a cylindrical pin 14 configured on the valve piston and delimits an annular space 15 from which a feed line 16 leads , which opens into a pressure chamber 17 surrounding the spring-loaded nozzle needle 6 .
Nach Fig. 2 weist die Zuführleitung 16 eine Abzweigung 18 mit einer Systementlastungsdrossel 19 auf, die mit einer im oberen Bereich des Ventilkolbens 5 eingearbeiteten Umfangsnut 20 im Sinne einer Auf- oder Absteuerung zusammenwirkt. Die Umfangsnut 20 ist über einen ringförmigen Zwischenraum 21 mit einer Rück laufleitung 22 verbunden.According to FIG. 2, the feed line 16 to a junction 18 with a relief throttle system 19, which cooperates with an incorporated of the valve piston 5 in the upper region circumferential groove 20 in the sense of an up or down control. The circumferential groove 20 is connected via an annular space 21 to a return line 22 .
Der Zwischenraum 21 ist zu gleichen Teilen durch einen Absatz 23 im Steuerkolben 5 und einen Absatz 24 im Ventilkolben 4 ge bildet und gegenüber der Umfangsnut 20 wesentlich größer ausge führt.The intermediate space 21 is formed in equal parts by a shoulder 23 in the control piston 5 and a shoulder 24 in the valve piston 4 and leads out to the circumferential groove 20 much larger.
In der dargestellten Lage ist durch den auf dem Ventilsitz 12 aufliegenden Ventilkolben 5 eine offene Entlastungsverbindung von der Zuführleitung 16 über die Systementlastungsdrossel 19, die Umfangsnut 20 und den Zwischenraum 21 zur niederdruckseiti gen Rücklaufleitung 22 hergestellt.In the position shown, an open relief connection from the supply line 16 via the system relief throttle 19 , the circumferential groove 20 and the intermediate space 21 to the low pressure side return line 22 is produced by the valve piston 5 resting on the valve seat 12 .
Sobald der mit einer Entlastungsleitung 25 verbindbare Steuer raum 9 durch Aktivierung des Magnetventiles 26 (Fig. 1) entla stet wird, hebt der Ventilkolben 5 aufgrund des am Zapfen 14 des Ventilkolbens 5 herrschenden höheren Drucks von seinem Ven tilsitz 12 ab und die Systementlastungsdrossel 19 wird von der unteren Steuerkante 20a der Umfangsnut 20 überfahren, wodurch die Entlastung während der Einspritzung unterbrochen wird. As soon as the control chamber 9, which can be connected to a relief line 25, is activated by activating the solenoid valve 26 ( FIG. 1), the valve piston 5 lifts off from its valve seat 12 due to the higher pressure prevailing on the pin 14 of the valve piston 5 and the system relief throttle 19 becomes run over by the lower control edge 20 a of the circumferential groove 20 , whereby the discharge is interrupted during the injection.
Der ringförmige Zwischenraum 21 und die Rücklaufleitung 22 sind- im Gegensatz zur Systementlastungsdrossel 19 und Umfangsnut 20 - ständig miteinander verbunden, unabhängig von der jeweili gen Stellung des Ventilkolbens 5.The annular space 21 and the return line 22 are - in contrast to the system relief throttle 19 and circumferential groove 20 - constantly connected to each other, regardless of the respective position of the valve piston 5th
Nach Fig. 3 befindet sich die Systementlastungsdrossel 19 nicht im Ventilgehäuse 2, sondern im Ventilkolben 5 und steht mit ei ner in den ringförmigen Zwischenraum 21 führenden und im Ven tilkolben 5 verlaufenden Längsbohrung 27 in Verbindung.According to FIG. 3, the system relief throttle 19 is not located in the valve housing 2, but in the valve piston 5 and communicates with egg ner in the annular space 21 and in the leading tilkolben Ven 5 extending longitudinal bore 27 in connection.
Die Systementlastungsdrossel 19 hat mit geringem Abstand zum Zapfen 14 einen radialen Verlauf und ist lediglich bei Schließ lage des Ventilkolbens 5 mit dem Ringraum 15 verbindbar. Der Mündungsquerschnitt 19a der Systementlastungsdrossel 19 liegt im oberen Bereich des Ringraumes 15, derart, daß bereits nach kleinem Öffnungshub des Ventilkolbens 5 die Entlastungsverbin dung aufgehoben wird.The system load throttle 19 has a radial distance from the pin 14 and can only be connected to the annular space 15 when the valve piston 5 is in the closed position. The mouth cross section 19 a of the system relief throttle 19 is in the upper region of the annular space 15 , such that the relief connection is canceled after a small opening stroke of the valve piston 5 .
Claims (7)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732070A DE19732070C2 (en) | 1997-07-25 | 1997-07-25 | Direct-injection fuel injector with solenoid valve control for a multi-cylinder internal combustion engine |
GB9815794A GB2327713B (en) | 1997-07-25 | 1998-07-20 | Direct-injection fuel injection valve with solenoid valve control |
IT98RM000487A IT1299574B1 (en) | 1997-07-25 | 1998-07-22 | MAGNETIC CONTROL VALVE FOR DIRECT FUEL INJECTION FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE |
FR9809401A FR2766523B1 (en) | 1997-07-25 | 1998-07-23 | FUEL INJECTION VALVE WITH DIRECT INJECTION AND ELECTROVALVE CONTROL FOR MULTI-CYLINDER ENGINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732070A DE19732070C2 (en) | 1997-07-25 | 1997-07-25 | Direct-injection fuel injector with solenoid valve control for a multi-cylinder internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19732070A1 true DE19732070A1 (en) | 1999-01-28 |
DE19732070C2 DE19732070C2 (en) | 2001-02-01 |
Family
ID=7836896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19732070A Expired - Fee Related DE19732070C2 (en) | 1997-07-25 | 1997-07-25 | Direct-injection fuel injector with solenoid valve control for a multi-cylinder internal combustion engine |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE19732070C2 (en) |
FR (1) | FR2766523B1 (en) |
GB (1) | GB2327713B (en) |
IT (1) | IT1299574B1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19946515A1 (en) * | 1999-09-24 | 2001-03-29 | Htw Dresden | Arrangement for controlling piston engine fuel injection has control piston with conical valve seat connecting to second conical part with different inclination angle near control chamber |
WO2001029410A1 (en) * | 1999-10-21 | 2001-04-26 | Robert Bosch Gmbh | High pressure fuel injector with a hydraulically controlled plate cam |
WO2001050007A3 (en) * | 1999-12-31 | 2001-12-27 | Bosch Gmbh Robert | Control valve comprising an actuator guided by a tappet, for an injector in a fuel injection system |
FR2811024A1 (en) * | 2000-06-29 | 2002-01-04 | Bosch Gmbh Robert | INJECTOR HAVING A CONTROL SIDE OF THE OUTPUT SIDE |
DE10031580A1 (en) * | 2000-06-29 | 2002-01-17 | Bosch Gmbh Robert | Pressure-controlled control part for common rail injectors |
DE10035724A1 (en) * | 2000-07-22 | 2002-02-07 | Orange Gmbh | Fuel injector for internal combustion engine, has control valve to interrupt fuel supply under high pressure of injection valve and for pressure relief of injection valve to pressure relief area during injection pause |
DE10055272A1 (en) * | 2000-11-08 | 2002-05-23 | Bosch Gmbh Robert | Pressure controlled injector with control valves connected in series |
CN106593726A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Resonant electrically controlled oil injector with oil fed through double paths |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4341543A1 (en) * | 1993-12-07 | 1995-06-08 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
DE4341546A1 (en) * | 1993-12-07 | 1995-06-08 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
US5526791A (en) * | 1995-06-07 | 1996-06-18 | Diesel Technology Company | High-pressure electromagnetic fuel injector |
DE19612738A1 (en) * | 1995-04-05 | 1996-10-10 | Avl Verbrennungskraft Messtech | Fuel injection system for IC engine |
DE19621583A1 (en) * | 1995-06-06 | 1997-01-02 | Avl Verbrennungskraft Messtech | Diesel engine fuel injection system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706469A1 (en) * | 1997-02-19 | 1998-08-27 | Daimler Benz Ag | Accumulator injection system for a multi-cylinder internal combustion engine with solenoid-controlled fuel injection valves |
DE19706467C1 (en) * | 1997-02-19 | 1998-03-26 | Daimler Benz Ag | Fuel injector for multi-cylinder IC engines |
DE19748999C2 (en) * | 1997-11-06 | 2002-11-07 | Daimler Chrysler Ag | Solenoid valve controlled injector for a storage system of a multi-cylinder internal combustion engine |
US6029632A (en) * | 1998-07-21 | 2000-02-29 | Daimlerchrysler Ag | Fuel injector with magnetic valve control for a multicylinder internal combustion engine with direct fuel injection |
-
1997
- 1997-07-25 DE DE19732070A patent/DE19732070C2/en not_active Expired - Fee Related
-
1998
- 1998-07-20 GB GB9815794A patent/GB2327713B/en not_active Expired - Fee Related
- 1998-07-22 IT IT98RM000487A patent/IT1299574B1/en active IP Right Grant
- 1998-07-23 FR FR9809401A patent/FR2766523B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4341543A1 (en) * | 1993-12-07 | 1995-06-08 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
DE4341546A1 (en) * | 1993-12-07 | 1995-06-08 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
DE19612738A1 (en) * | 1995-04-05 | 1996-10-10 | Avl Verbrennungskraft Messtech | Fuel injection system for IC engine |
DE19621583A1 (en) * | 1995-06-06 | 1997-01-02 | Avl Verbrennungskraft Messtech | Diesel engine fuel injection system |
US5526791A (en) * | 1995-06-07 | 1996-06-18 | Diesel Technology Company | High-pressure electromagnetic fuel injector |
Non-Patent Citations (1)
Title |
---|
Patents Abstracts of Japan, M-240, September 3, 1983, Vol. 7/No. 199, JP 58-98 655 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19946515A1 (en) * | 1999-09-24 | 2001-03-29 | Htw Dresden | Arrangement for controlling piston engine fuel injection has control piston with conical valve seat connecting to second conical part with different inclination angle near control chamber |
WO2001029410A1 (en) * | 1999-10-21 | 2001-04-26 | Robert Bosch Gmbh | High pressure fuel injector with a hydraulically controlled plate cam |
KR100703921B1 (en) * | 1999-10-21 | 2007-04-05 | 로베르트 보쉬 게엠베하 | Fuel injection device for internal combustion engine with a high pressure accumulator and internal combustion engine |
WO2001050007A3 (en) * | 1999-12-31 | 2001-12-27 | Bosch Gmbh Robert | Control valve comprising an actuator guided by a tappet, for an injector in a fuel injection system |
FR2811024A1 (en) * | 2000-06-29 | 2002-01-04 | Bosch Gmbh Robert | INJECTOR HAVING A CONTROL SIDE OF THE OUTPUT SIDE |
DE10031580A1 (en) * | 2000-06-29 | 2002-01-17 | Bosch Gmbh Robert | Pressure-controlled control part for common rail injectors |
DE10035724A1 (en) * | 2000-07-22 | 2002-02-07 | Orange Gmbh | Fuel injector for internal combustion engine, has control valve to interrupt fuel supply under high pressure of injection valve and for pressure relief of injection valve to pressure relief area during injection pause |
DE10035724C2 (en) * | 2000-07-22 | 2002-09-26 | Orange Gmbh | Fuel injector for an internal combustion engine |
DE10055272A1 (en) * | 2000-11-08 | 2002-05-23 | Bosch Gmbh Robert | Pressure controlled injector with control valves connected in series |
CN106593726A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Resonant electrically controlled oil injector with oil fed through double paths |
Also Published As
Publication number | Publication date |
---|---|
DE19732070C2 (en) | 2001-02-01 |
ITRM980487A0 (en) | 1998-07-22 |
GB2327713B (en) | 1999-07-07 |
GB2327713A (en) | 1999-02-03 |
FR2766523B1 (en) | 2001-06-29 |
FR2766523A1 (en) | 1999-01-29 |
IT1299574B1 (en) | 2000-03-16 |
GB9815794D0 (en) | 1998-09-16 |
ITRM980487A1 (en) | 2000-01-22 |
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