EP0688950A1 - Système d'injection de carburant - Google Patents
Système d'injection de carburant Download PDFInfo
- Publication number
- EP0688950A1 EP0688950A1 EP95107822A EP95107822A EP0688950A1 EP 0688950 A1 EP0688950 A1 EP 0688950A1 EP 95107822 A EP95107822 A EP 95107822A EP 95107822 A EP95107822 A EP 95107822A EP 0688950 A1 EP0688950 A1 EP 0688950A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- fuel
- valve
- pressure
- valve needle
- 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
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
-
- 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
-
- 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 pump working chamber 10 is supplied with fuel via a suction line 15, which is supplied by a suction chamber 17, which is essentially only shown in broken lines and is enclosed within the housing of the fuel injection pump.
- the suction chamber receives fuel from a fuel delivery pump 18 which is synchronous with the fuel injection pump, e.g. B. is driven by the drive shaft and thus promotes fuel in speed-dependent amounts in the suction chamber.
- a fuel delivery pump 18 which is synchronous with the fuel injection pump, e.g. B. is driven by the drive shaft and thus promotes fuel in speed-dependent amounts in the suction chamber.
- an additional pressure control valve 19 With the help of an additional pressure control valve 19, the pressure in the suction chamber is usually controlled as a function of speed, if with the help of this Pressure additional functions of the fuel injection pump to be controlled.
- Fuel continuously flows back to the reservoir 23 via an overflow throttle 22, so that cooling of the injection pump or degassing of the suction chamber is ensured.
- the cross section of the throttle opening 54 is the largest and is then increasingly reduced due to the upward movement of the valve needle with the inclined lateral boundary wall of the recess 50 forming the trapezoidal shape.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4421714A DE4421714A1 (de) | 1994-06-21 | 1994-06-21 | Kraftstoffeinspritzsystem |
DE4421714 | 1994-06-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0688950A1 true EP0688950A1 (fr) | 1995-12-27 |
EP0688950B1 EP0688950B1 (fr) | 1998-08-12 |
Family
ID=6521151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95107822A Expired - Lifetime EP0688950B1 (fr) | 1994-06-21 | 1995-05-23 | Système d'injection de carburant |
Country Status (5)
Country | Link |
---|---|
US (1) | US5533481A (fr) |
EP (1) | EP0688950B1 (fr) |
JP (1) | JPH0821337A (fr) |
KR (1) | KR100377894B1 (fr) |
DE (2) | DE4421714A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998011342A1 (fr) * | 1996-09-11 | 1998-03-19 | Daimler-Benz Aktiengesellschaft | Moteur a combustion interne diesel fonctionnant par injection de carburant |
WO2008031903A1 (fr) * | 2006-09-12 | 2008-03-20 | Vicorgilta, S.L. | Garde-corps de sécurité pour travaux |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5954487A (en) * | 1995-06-23 | 1999-09-21 | Diesel Technology Company | Fuel pump control valve assembly |
US6045054A (en) * | 1998-04-23 | 2000-04-04 | Siemens Automotive Corporation | Air shroud for air assist fuel injector |
GB2339451A (en) * | 1998-07-10 | 2000-01-26 | Lucas Ind Plc | A fuel injector with control chamber and a damped needle valve |
DE19834120A1 (de) * | 1998-07-29 | 2000-02-03 | Bosch Gmbh Robert | Kraftstoffversorgungsanlage einer Brennkraftmaschine |
US6089470A (en) * | 1999-03-10 | 2000-07-18 | Diesel Technology Company | Control valve assembly for pumps and injectors |
US6158419A (en) * | 1999-03-10 | 2000-12-12 | Diesel Technology Company | Control valve assembly for pumps and injectors |
DE19930832A1 (de) * | 1999-07-03 | 2001-01-11 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
DE19947194A1 (de) * | 1999-10-01 | 2001-04-05 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
US6450778B1 (en) | 2000-12-07 | 2002-09-17 | Diesel Technology Company | Pump system with high pressure restriction |
DE10112426A1 (de) * | 2001-03-15 | 2002-09-19 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE10119603A1 (de) * | 2001-04-21 | 2002-10-24 | Bosch Gmbh Robert | Kraftsotffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10201529A1 (de) * | 2002-01-17 | 2003-07-31 | Volkswagen Ag | Pumpe-Düse-Element für eine Brennkraftmaschine |
DE202005009909U1 (de) * | 2005-06-23 | 2006-10-26 | Liebherr-Aerospace Lindenberg Gmbh | Federsystem |
DE102006062491A1 (de) * | 2006-12-28 | 2008-07-03 | Robert Bosch Gmbh | Vorrichtung zur Dosierung von Kraftstoff zum Abgassystem eines Verbrennungsmotors |
CN114635818A (zh) * | 2022-03-09 | 2022-06-17 | 哈尔滨工程大学 | 一种利用柔性液压阻尼实现共轨喷油器稳定喷射的高速电磁阀 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3644257A1 (de) | 1985-12-27 | 1987-07-02 | Diesel Kiki Co | Kraftstoffeinspritzpumpe |
WO1990008257A1 (fr) * | 1989-01-12 | 1990-07-26 | Voest-Alpine Automotive Gesellschaft M.B.H. | Injecteur de carburant |
WO1990008296A1 (fr) | 1989-01-18 | 1990-07-26 | Mogilevsky Tekhnologichesky Institut | Installation de traitement thermique de matieres polydispersees |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI88333C (fi) * | 1991-06-25 | 1993-04-26 | Waertsilae Diesel Int | Foerbaettrat insprutningsventilarrangemang foer braensle |
US5231962A (en) * | 1991-09-27 | 1993-08-03 | Nippondenso Co., Ltd. | Fuel injection control system with split fuel injection for diesel engine |
DE4230641A1 (de) * | 1992-09-12 | 1994-03-17 | Bosch Gmbh Robert | Kraftstoff-Einspritzdüse mit Additiveinspritzung für Dieselmotoren |
JPH07145750A (ja) * | 1993-11-25 | 1995-06-06 | Zexel Corp | 燃料噴射制御装置 |
-
1994
- 1994-06-21 DE DE4421714A patent/DE4421714A1/de not_active Withdrawn
-
1995
- 1995-05-23 EP EP95107822A patent/EP0688950B1/fr not_active Expired - Lifetime
- 1995-05-23 DE DE59503133T patent/DE59503133D1/de not_active Expired - Lifetime
- 1995-05-30 US US08/452,755 patent/US5533481A/en not_active Expired - Fee Related
- 1995-06-20 JP JP7153550A patent/JPH0821337A/ja active Pending
- 1995-06-20 KR KR1019950016364A patent/KR100377894B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3644257A1 (de) | 1985-12-27 | 1987-07-02 | Diesel Kiki Co | Kraftstoffeinspritzpumpe |
WO1990008257A1 (fr) * | 1989-01-12 | 1990-07-26 | Voest-Alpine Automotive Gesellschaft M.B.H. | Injecteur de carburant |
WO1990008296A1 (fr) | 1989-01-18 | 1990-07-26 | Mogilevsky Tekhnologichesky Institut | Installation de traitement thermique de matieres polydispersees |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998011342A1 (fr) * | 1996-09-11 | 1998-03-19 | Daimler-Benz Aktiengesellschaft | Moteur a combustion interne diesel fonctionnant par injection de carburant |
US6244249B1 (en) | 1996-09-11 | 2001-06-12 | Daimlerchrysler Ag | Fuel-injection diesel internal-combustion engine |
WO2008031903A1 (fr) * | 2006-09-12 | 2008-03-20 | Vicorgilta, S.L. | Garde-corps de sécurité pour travaux |
Also Published As
Publication number | Publication date |
---|---|
DE59503133D1 (de) | 1998-09-17 |
KR100377894B1 (ko) | 2003-05-22 |
DE4421714A1 (de) | 1996-01-04 |
US5533481A (en) | 1996-07-09 |
KR960001469A (ko) | 1996-01-25 |
JPH0821337A (ja) | 1996-01-23 |
EP0688950B1 (fr) | 1998-08-12 |
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