EP0745184A1 - Process for reducing the fuel pressure in a fuel injection system - Google Patents
Process for reducing the fuel pressure in a fuel injection systemInfo
- Publication number
- EP0745184A1 EP0745184A1 EP95919966A EP95919966A EP0745184A1 EP 0745184 A1 EP0745184 A1 EP 0745184A1 EP 95919966 A EP95919966 A EP 95919966A EP 95919966 A EP95919966 A EP 95919966A EP 0745184 A1 EP0745184 A1 EP 0745184A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- valve
- chamber
- injection
- control
- 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
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
- F02D41/3872—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves characterised by leakage flow in injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3827—Common rail control systems for diesel engines
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
-
- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
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)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4445586 | 1994-12-20 | ||
DE4445586A DE4445586A1 (en) | 1994-12-20 | 1994-12-20 | Method for reducing fuel pressure in a fuel injector |
PCT/DE1995/000713 WO1996019659A1 (en) | 1994-12-20 | 1995-06-01 | Process for reducing the fuel pressure in a fuel injection system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0745184A1 true EP0745184A1 (en) | 1996-12-04 |
EP0745184B1 EP0745184B1 (en) | 1998-10-28 |
Family
ID=6536449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95919966A Expired - Lifetime EP0745184B1 (en) | 1994-12-20 | 1995-06-01 | Process for reducing the fuel pressure in a fuel injection system |
Country Status (6)
Country | Link |
---|---|
US (1) | US5711274A (en) |
EP (1) | EP0745184B1 (en) |
JP (1) | JPH09509716A (en) |
KR (1) | KR100378722B1 (en) |
DE (2) | DE4445586A1 (en) |
WO (1) | WO1996019659A1 (en) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19618932C2 (en) * | 1996-05-10 | 2001-02-01 | Siemens Ag | Device and method for regulating the fuel pressure in a high pressure accumulator |
US5816228A (en) * | 1997-02-19 | 1998-10-06 | Avl Powertrain Engineering, Inc. | Fuel injection system for clean low viscosity fuels |
JP3834918B2 (en) * | 1997-03-04 | 2006-10-18 | いすゞ自動車株式会社 | Engine fuel injection method and apparatus |
DE59806913D1 (en) * | 1997-03-12 | 2003-02-20 | Forsch Transferzentrum Ev An D | METHOD FOR INJECTING FUEL IN MULTI-CYLINDER ENGINES AND DEVICE FOR IMPLEMENTING THE METHOD |
JP3546285B2 (en) | 1997-08-04 | 2004-07-21 | トヨタ自動車株式会社 | Fuel injection control device for accumulator type engine |
JP3713918B2 (en) * | 1997-08-29 | 2005-11-09 | いすゞ自動車株式会社 | Engine fuel injection method and apparatus |
DE19744723A1 (en) * | 1997-10-10 | 1999-04-15 | Bosch Gmbh Robert | Fuel injector |
US6167869B1 (en) * | 1997-11-03 | 2001-01-02 | Caterpillar Inc. | Fuel injector utilizing a multiple current level solenoid |
GB2332241B (en) * | 1997-12-11 | 2001-12-19 | Denso Corp | Accumulator fuel injection system for diesel engine of automotive vehicles |
US5875764A (en) * | 1998-05-13 | 1999-03-02 | Siemens Aktiengesellschaft | Apparatus and method for valve control |
EP1002948B1 (en) * | 1998-11-19 | 2003-03-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Accumulator type fuel injection system |
DE19954023B4 (en) * | 1998-11-30 | 2009-02-26 | Denso Corp., Kariya-shi | High-pressure fuel injection device |
GB9900070D0 (en) * | 1999-01-05 | 1999-02-24 | Lucas Franc | Control method |
JP3458776B2 (en) * | 1999-01-28 | 2003-10-20 | 株式会社デンソー | Accumulator type fuel injection device and accumulator interior pressure control method |
JP4122615B2 (en) * | 1999-02-24 | 2008-07-23 | トヨタ自動車株式会社 | Fuel pressure control system for high-pressure fuel injection system |
DE19939420B4 (en) * | 1999-08-20 | 2004-12-09 | Robert Bosch Gmbh | Fuel injection method and system for an internal combustion engine |
DE19939418A1 (en) * | 1999-08-20 | 2001-03-01 | Bosch Gmbh Robert | Fuel injection system for an internal combustion engine |
DE19951132A1 (en) | 1999-10-23 | 2001-05-10 | Bosch Gmbh Robert | Method of releasing fuel pressure in a non-return fuel supply system |
DE10002109A1 (en) | 2000-01-19 | 2001-08-02 | Bosch Gmbh Robert | Injection system |
DE10002704A1 (en) * | 2000-01-22 | 2001-08-02 | Bosch Gmbh Robert | Injection device and method for injecting fluid |
US6345606B1 (en) * | 2000-04-12 | 2002-02-12 | Delphi Technologies, Inc | Method for controlling fuel rail pressure using a piezoelectric actuated fuel injector |
DE10112163A1 (en) * | 2001-03-14 | 2002-09-19 | Bosch Gmbh Robert | Accumulator injection system (common rail) for internal combustion engines |
JP2003021017A (en) * | 2001-07-10 | 2003-01-24 | Bosch Automotive Systems Corp | Accumulator fuel injection device |
JP3724392B2 (en) * | 2001-07-26 | 2005-12-07 | トヨタ自動車株式会社 | Fuel injection control device for internal combustion engine |
US6595189B2 (en) | 2001-08-10 | 2003-07-22 | Caterpillar Inc | Method of reducing noise in a mechanically actuated fuel injection system and engine using same |
DE10139623A1 (en) * | 2001-08-11 | 2003-02-27 | Bosch Gmbh Robert | Injection arrangement for fuel storage injection system has bypass channel from high-pressure chamber to valve chamber closed by valve closure element during injection process |
JP3931120B2 (en) * | 2002-07-10 | 2007-06-13 | ボッシュ株式会社 | Accumulated fuel injection system |
JP4144375B2 (en) * | 2002-09-11 | 2008-09-03 | 株式会社デンソー | Accumulated fuel injection system |
DE10300178A1 (en) * | 2003-01-08 | 2004-07-22 | Robert Bosch Gmbh | Method, computer program and control and / or regulating device for operating an internal combustion engine, and internal combustion engine |
US7219655B2 (en) * | 2003-02-28 | 2007-05-22 | Caterpillar Inc | Fuel injection system including two common rails for injecting fuel at two independently controlled pressures |
JP2004353487A (en) * | 2003-05-27 | 2004-12-16 | Mitsubishi Electric Corp | Fuel supply device of internal combustion engine |
DE10358266B4 (en) * | 2003-12-11 | 2008-06-05 | L'orange Gmbh | Fuel injection system for internal combustion engines |
DE102004002139A1 (en) * | 2004-01-15 | 2005-08-04 | Robert Bosch Gmbh | Fuel supply system for an internal combustion engine |
DE102005001499B4 (en) * | 2005-01-12 | 2009-12-10 | Continental Automotive Gmbh | Method and device for controlling an internal combustion engine |
DE102005001497B4 (en) * | 2005-01-12 | 2007-02-15 | Siemens Ag | Method and device for controlling an internal combustion engine |
DE102005012998B3 (en) * | 2005-03-21 | 2006-09-21 | Siemens Ag | Common rail injection system for e.g. diesel engine, has injectors comprising injection nozzles for injecting fuel into combustion chamber, where one of injectors or part of injectors serves for pressure reduction in high pressure area |
DE102005012997B4 (en) * | 2005-03-21 | 2010-09-09 | Continental Automotive Gmbh | Pressure reduction method for an injection system and corresponding injection systems |
DE102005060552B4 (en) * | 2005-12-17 | 2009-06-10 | Man Diesel Se | Injection device for fuel engines |
EP1803917B1 (en) * | 2005-12-28 | 2008-07-30 | MAGNETI MARELLI POWERTRAIN S.p.A. | Control method of a common-rail type system for direct fuel injection into an internal combustion engine |
ATE454547T1 (en) * | 2007-01-23 | 2010-01-15 | Scania Cv Ab | ARRANGEMENT AND METHOD FOR TURNING OFF AN COMBUSTION ENGINE |
DE602007006173D1 (en) * | 2007-07-05 | 2010-06-10 | Magneti Marelli Spa | Method for controlling the overpressure in a fuel supply system of the common rail type |
US8291889B2 (en) | 2009-05-07 | 2012-10-23 | Caterpillar Inc. | Pressure control in low static leak fuel system |
US8196567B2 (en) * | 2010-05-28 | 2012-06-12 | Ford Global Technologies, Llc | Approach for controlling fuel flow with alternative fuels |
CA2809539C (en) * | 2013-03-15 | 2014-05-13 | Westport Power Inc. | Preventing fuel regulation failure |
FR3012177A1 (en) * | 2013-10-23 | 2015-04-24 | Peugeot Citroen Automobiles Sa | METHOD OF DISCHARGING A HIGH PRESSURE FUEL INJECTION RAIL FROM AN INTERNAL COMBUSTION ENGINE IN CASE OF AFTER-SALES INTERVENTION |
US10267282B2 (en) * | 2014-09-12 | 2019-04-23 | Ge Global Sourcing Llc | Pressure relief valve systems |
DE102016207297B3 (en) * | 2016-04-28 | 2017-10-19 | Mtu Friedrichshafen Gmbh | Method for operating an internal combustion engine, device for controlling and / or regulating an internal combustion engine, injection system and internal combustion engine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5074272A (en) * | 1986-08-13 | 1991-12-24 | Ashland Oil, Inc. | Process and apparatus for reducing port fuel injector deposits |
US4782808A (en) * | 1986-08-13 | 1988-11-08 | Ashland Oil, Inc. | Process and apparatus for reducing port fuel injector deposits |
JPH0354358A (en) * | 1989-07-21 | 1991-03-08 | Yamaha Motor Co Ltd | High pressure fuel injection device of engine |
JP2773826B2 (en) * | 1989-12-27 | 1998-07-09 | ヤマハ発動機株式会社 | Air fuel injection device for two-cycle engine |
US5159911A (en) * | 1991-06-21 | 1992-11-03 | Cummins Engine Company, Inc. | Hot start open nozzle fuel injection systems |
DE4332119B4 (en) * | 1993-09-22 | 2006-04-20 | Robert Bosch Gmbh | Fuel injection device for internal combustion engines |
US5408970A (en) * | 1994-05-02 | 1995-04-25 | General Motors Corporation | Electronically controlled continuous flow fuel system |
-
1994
- 1994-12-20 DE DE4445586A patent/DE4445586A1/en not_active Withdrawn
-
1995
- 1995-06-01 KR KR1019960704519A patent/KR100378722B1/en not_active IP Right Cessation
- 1995-06-01 US US08/696,870 patent/US5711274A/en not_active Expired - Lifetime
- 1995-06-01 EP EP95919966A patent/EP0745184B1/en not_active Expired - Lifetime
- 1995-06-01 DE DE59504070T patent/DE59504070D1/en not_active Expired - Lifetime
- 1995-06-01 JP JP8519396A patent/JPH09509716A/en active Pending
- 1995-06-01 WO PCT/DE1995/000713 patent/WO1996019659A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9619659A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59504070D1 (en) | 1998-12-03 |
DE4445586A1 (en) | 1996-06-27 |
JPH09509716A (en) | 1997-09-30 |
US5711274A (en) | 1998-01-27 |
WO1996019659A1 (en) | 1996-06-27 |
KR970701309A (en) | 1997-03-17 |
EP0745184B1 (en) | 1998-10-28 |
KR100378722B1 (en) | 2003-06-19 |
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