WO2003027485A8 - Fuel injection system with injector hydraulically decoupled from the supply - Google Patents

Fuel injection system with injector hydraulically decoupled from the supply

Info

Publication number
WO2003027485A8
WO2003027485A8 PCT/DE2002/003000 DE0203000W WO03027485A8 WO 2003027485 A8 WO2003027485 A8 WO 2003027485A8 DE 0203000 W DE0203000 W DE 0203000W WO 03027485 A8 WO03027485 A8 WO 03027485A8
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
high pressure
injection system
fuel injection
supply
Prior art date
Application number
PCT/DE2002/003000
Other languages
German (de)
French (fr)
Other versions
WO2003027485A1 (en
Inventor
Marcus Marheineke
Original Assignee
Bosch Gmbh Robert
Marcus Marheineke
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bosch Gmbh Robert, Marcus Marheineke filed Critical Bosch Gmbh Robert
Publication of WO2003027485A1 publication Critical patent/WO2003027485A1/en
Publication of WO2003027485A8 publication Critical patent/WO2003027485A8/en

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
    • 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
    • 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
    • F02M55/025—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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention relates to a fuel injection system for the injection of fuel into the combustion chamber of an internal combustion engine. A number of fuel injectors (1) are pressurised with fuel under high pressure from a high-pressure common rail (2), by means of high pressure lines (4). The fuel injectors (1) comprise an annular chamber (12), into which a connector piece (7), for the high pressure line (4), opens. An additional volume (8, 21) is provided in the high pressure line (4), before the injector (9), viewed in the direction of flow of the fuel, which comprises a hydraulic decoupling element (6, 26) on the side thereof facing the common rail (2).
PCT/DE2002/003000 2001-09-05 2002-08-16 Fuel injection system with injector hydraulically decoupled from the supply WO2003027485A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10143423.5 2001-09-05
DE2001143423 DE10143423A1 (en) 2001-09-05 2001-09-05 Fuel injection system with injector hydraulically decoupled from the supply line

Publications (2)

Publication Number Publication Date
WO2003027485A1 WO2003027485A1 (en) 2003-04-03
WO2003027485A8 true WO2003027485A8 (en) 2003-08-14

Family

ID=7697743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/003000 WO2003027485A1 (en) 2001-09-05 2002-08-16 Fuel injection system with injector hydraulically decoupled from the supply

Country Status (2)

Country Link
DE (1) DE10143423A1 (en)
WO (1) WO2003027485A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10350892A1 (en) * 2003-10-31 2005-06-09 Siemens Ag Injection system for an internal combustion engine, in particular for a diesel engine
DE102004035297A1 (en) * 2004-07-21 2006-02-16 Robert Bosch Gmbh Common rail system with different supply lines to the injectors
ATE530761T1 (en) * 2007-09-13 2011-11-15 Ganser Hydromag FUEL INJECTION DEVICE
DE102007047518B4 (en) 2007-10-04 2019-08-29 Man Truck & Bus Ag An inlet connector
DE102008012637A1 (en) 2008-03-05 2009-09-10 Robert Bosch Gmbh Fuel injector for injecting fuel into combustion chamber of internal-combustion engine, has injector body, which has fuel inlet, injection opening, nozzle needle and nozzle area

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447714A (en) * 1967-03-22 1967-11-30 Huber Robert Safety device on electromagnetic injection valves of internal combustion engines
DE2909233A1 (en) * 1979-03-09 1980-09-18 Bosch Gmbh Robert FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES
DE4341543A1 (en) * 1993-12-07 1995-06-08 Bosch Gmbh Robert Fuel injection device for internal combustion engines
DE19619523A1 (en) 1996-05-15 1997-11-20 Bosch Gmbh Robert Fuel injector for high pressure injection
DE19712135C1 (en) * 1997-03-22 1998-08-13 Mtu Friedrichshafen Gmbh Fuel injection system for internal combustion engine
DE19716513C2 (en) * 1997-04-19 1999-02-11 Mtu Friedrichshafen Gmbh Fuel injection system for an internal combustion engine with a common rail
DE29814934U1 (en) 1998-08-20 2000-01-05 Robert Bosch Gmbh, 70469 Stuttgart Fuel injection valve for internal combustion engines
FR2786225B1 (en) * 1998-11-24 2000-12-22 Inst Francais Du Petrole HIGH PRESSURE FUEL INJECTION SYSTEM IN A DIRECT INJECTION INTERNAL COMBUSTION ENGINE
DE19860476A1 (en) * 1998-12-28 2000-07-06 Bosch Gmbh Robert Fuel injection system
JP2000205081A (en) * 1999-01-06 2000-07-25 Usui Internatl Ind Co Ltd Accumulated fuel injection system for diesel internal combustion engine
DE10002109A1 (en) * 2000-01-19 2001-08-02 Bosch Gmbh Robert Injection system
DE10114219A1 (en) 2001-03-23 2002-09-26 Bosch Gmbh Robert Fuel injection system has high pressure pump via which fuel injectors are supplied with fuel at high pressure and storage volume arranged immediately before each individual fuel injector

Also Published As

Publication number Publication date
DE10143423A1 (en) 2003-05-08
WO2003027485A1 (en) 2003-04-03

Similar Documents

Publication Publication Date Title
US7334571B1 (en) Isolation system for high pressure spark ignition direct injection fuel delivery components
EP1314883A3 (en) Common rail fuel supply system of an internal combustion engine with multiple cylinders
US8272368B2 (en) Dual fuel connector
US5325834A (en) Method of and conversion kit for converting an engine to hydraulically-actuated fuel injection system
EP1118761A3 (en) Method of assessing operation of an internal combustion engine common-rail injection system
US6405711B1 (en) Fuel delivery module for fuel injected internal combustion engines
DE50211417D1 (en) FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
WO1999000595A3 (en) Fuel injection system
AU2001274980A1 (en) Pump assembly and method
DE50010227D1 (en) FUEL INJECTION SYSTEM FOR A COMBUSTION ENGINE
EP1688611A3 (en) Fuel injector with direct needle control for an internal combustion engine
EP0860600A3 (en) A fuel injection system for an internal combustion engine
WO2001051797A3 (en) Control valve for an injector in a fuel injection system for internal combustion engines with pressure amplification in the control chamber
WO2003078821A3 (en) Fuel system
WO2001053686A3 (en) Method for operating a presupply pump of a fuel metering system and fuel metering system of a direct injection internal combustion engine
WO2002063162A3 (en) Device for damping pressure pulsations in high-pressure injection systems
ATE283424T1 (en) FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
WO2000039450A8 (en) Piston pump for high-pressure fuel generation
EP0957260A3 (en) Fluid feed system
ATE292238T1 (en) FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
CN102918255B (en) Coupling device
WO2003027485A8 (en) Fuel injection system with injector hydraulically decoupled from the supply
WO2001031193A3 (en) Fuel injector with integrated flow restrictor
WO2001029396A3 (en) Pressure translator for a fuel injection system pertaining to an internal combustion engine
EP2004986A4 (en) Fuel injection system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FR GB GR IE IT LU MC NL PT SE SK TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: IN PCT GAZETTE 14/2003 UNDER (81) DELETE "CN"

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP