EP0685645A3 - Injection valve for a fuel injection system of an internal combustion engine, particularly of a diesel engine. - Google Patents

Injection valve for a fuel injection system of an internal combustion engine, particularly of a diesel engine. Download PDF

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Publication number
EP0685645A3
EP0685645A3 EP95103560A EP95103560A EP0685645A3 EP 0685645 A3 EP0685645 A3 EP 0685645A3 EP 95103560 A EP95103560 A EP 95103560A EP 95103560 A EP95103560 A EP 95103560A EP 0685645 A3 EP0685645 A3 EP 0685645A3
Authority
EP
European Patent Office
Prior art keywords
valve
valve body
internal combustion
housing
combustion engine
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
Application number
EP95103560A
Other languages
German (de)
French (fr)
Other versions
EP0685645A2 (en
EP0685645B1 (en
Inventor
Christian Dipl Masch In Mathis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0685645A2 publication Critical patent/EP0685645A2/en
Publication of EP0685645A3 publication Critical patent/EP0685645A3/en
Application granted granted Critical
Publication of EP0685645B1 publication Critical patent/EP0685645B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means

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)

Abstract

The valve has a valve housing, a multi-part valve body displaceably arranged in the housing and at least one entry aperture issuing into a work cylinder. A fuel feed from a pressure chamber occurs via the aperture by control of the valve body. Between the nozzle needle (15a) controlled by the injection aperture (4) and at least one superimposed valve body part (15b) of the multi-part valve body (15) a vapour chamber (43) filled with fuel is formed. The vapour chamber is enclosed directly by the valve housing (47) or by a ring member axially displaceable or stationary in the valve housing. <IMAGE>
EP95103560A 1994-05-02 1995-03-13 Injection valve for a fuel injection system of an internal combustion engine, particularly of a diesel engine Expired - Lifetime EP0685645B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01358/94A CH689267A5 (en) 1994-05-02 1994-05-02 An injection valve for a fuel injection system of an internal combustion engine, especially a diesel engine.
CH135894 1994-05-02
CH1358/94 1994-05-02

Publications (3)

Publication Number Publication Date
EP0685645A2 EP0685645A2 (en) 1995-12-06
EP0685645A3 true EP0685645A3 (en) 1997-03-26
EP0685645B1 EP0685645B1 (en) 2001-06-06

Family

ID=4208593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95103560A Expired - Lifetime EP0685645B1 (en) 1994-05-02 1995-03-13 Injection valve for a fuel injection system of an internal combustion engine, particularly of a diesel engine

Country Status (6)

Country Link
US (1) US5692683A (en)
EP (1) EP0685645B1 (en)
JP (1) JP3710163B2 (en)
AT (1) ATE201920T1 (en)
CH (1) CH689267A5 (en)
DE (1) DE59509315D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917190A1 (en) * 1999-04-16 2000-10-26 Mtu Friedrichshafen Gmbh Fuel injector for internal combustion engine; has high pressure channel to supply fuel and nozzle needle in guide bore and has high pressure space behind guide bore to receive overflowing fuel
JP4066959B2 (en) * 2004-01-27 2008-03-26 株式会社デンソー Fuel injection device
FR2871876B1 (en) * 2004-06-21 2006-09-29 Valeo Climatisation Sa HEAT EXCHANGE DEVICE HAVING SEVERAL ROWS OF TUBES, ESPECIALLY FOR MOTOR VEHICLES
US7900604B2 (en) * 2005-06-16 2011-03-08 Siemens Diesel Systems Technology Dampening stop pin
DE102011015753A1 (en) * 2011-03-31 2012-10-04 Raphael Füchslin Injector
JP6137030B2 (en) * 2014-04-10 2017-05-31 株式会社デンソー Fuel injection valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096701A (en) * 1981-04-11 1982-10-20 Lucas Industries Ltd I.C. engine fuel injection nozzles
DE3844373A1 (en) * 1988-12-30 1990-07-05 Mak Maschinenbau Krupp Method and apparatus for setting a defined nozzle opening pressure of an injection valve
DE4126698A1 (en) * 1991-08-13 1992-10-15 Daimler Benz Ag Fuel injection nozzle for IC engine - has two flow connections between spring and damper chambers, for alternately dampened/non-dampener opening stroke

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710138A1 (en) * 1977-03-09 1978-09-14 Maschf Augsburg Nuernberg Ag MULTI-HOLE INJECTION NOZZLE
DE3220398A1 (en) * 1982-01-26 1983-07-28 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
US4566635A (en) * 1983-08-10 1986-01-28 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
GB8809269D0 (en) * 1988-04-20 1988-05-25 Lucas Ind Plc Fuel injection nozzle
EP0343147A3 (en) * 1988-05-16 1990-10-03 Steyr-Daimler-Puch Aktiengesellschaft Injection valve for air-compressing fuel injection engines
US5156132A (en) * 1989-04-17 1992-10-20 Nippondenso Co., Ltd. Fuel injection device for diesel engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096701A (en) * 1981-04-11 1982-10-20 Lucas Industries Ltd I.C. engine fuel injection nozzles
DE3844373A1 (en) * 1988-12-30 1990-07-05 Mak Maschinenbau Krupp Method and apparatus for setting a defined nozzle opening pressure of an injection valve
DE4126698A1 (en) * 1991-08-13 1992-10-15 Daimler Benz Ag Fuel injection nozzle for IC engine - has two flow connections between spring and damper chambers, for alternately dampened/non-dampener opening stroke

Also Published As

Publication number Publication date
DE59509315D1 (en) 2001-07-12
EP0685645A2 (en) 1995-12-06
JPH0842422A (en) 1996-02-13
JP3710163B2 (en) 2005-10-26
US5692683A (en) 1997-12-02
EP0685645B1 (en) 2001-06-06
CH689267A5 (en) 1999-01-15
ATE201920T1 (en) 2001-06-15

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