EP1148234A3 - Fuel injector with optimized sealing surfaces - Google Patents

Fuel injector with optimized sealing surfaces Download PDF

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Publication number
EP1148234A3
EP1148234A3 EP01109179A EP01109179A EP1148234A3 EP 1148234 A3 EP1148234 A3 EP 1148234A3 EP 01109179 A EP01109179 A EP 01109179A EP 01109179 A EP01109179 A EP 01109179A EP 1148234 A3 EP1148234 A3 EP 1148234A3
Authority
EP
European Patent Office
Prior art keywords
fuel injector
sealing surfaces
optimized sealing
housing
insert body
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
EP01109179A
Other languages
German (de)
French (fr)
Other versions
EP1148234B1 (en
EP1148234A2 (en
Inventor
Wendelin Kluegl
Guenter Lewentz
Martin Dr. Neumaier
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1148234A2 publication Critical patent/EP1148234A2/en
Publication of EP1148234A3 publication Critical patent/EP1148234A3/en
Application granted granted Critical
Publication of EP1148234B1 publication Critical patent/EP1148234B1/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
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
    • 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
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for

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

Das Einspritzventil weist eine Ventilkammer auf, die teilweise im Gehäuse des Einspritzventils und teilweise in einem Einsatzkörper eingebracht ist. Der Einsatzkörper liegt mit einer Dichtfläche auf dem Gehäuse auf. Über eine Schraubenmutter 16 wird der Einsatzkörper 9 dichtend gegen das Gehäuse gedrückt.

Figure 00000001
The injection valve has a valve chamber which is partly introduced into the housing of the injection valve and partly into an insert body. The insert body rests on the housing with a sealing surface. The insert body 9 is pressed sealingly against the housing by means of a screw nut 16.
Figure 00000001
EP01109179A 2000-04-20 2001-04-12 Fuel injector with optimized sealing surfaces Expired - Lifetime EP1148234B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10019810 2000-04-20
DE10019810A DE10019810A1 (en) 2000-04-20 2000-04-20 Injector with optimized sealing surfaces

Publications (3)

Publication Number Publication Date
EP1148234A2 EP1148234A2 (en) 2001-10-24
EP1148234A3 true EP1148234A3 (en) 2003-08-13
EP1148234B1 EP1148234B1 (en) 2004-06-16

Family

ID=7639596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109179A Expired - Lifetime EP1148234B1 (en) 2000-04-20 2001-04-12 Fuel injector with optimized sealing surfaces

Country Status (2)

Country Link
EP (1) EP1148234B1 (en)
DE (2) DE10019810A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310123A1 (en) 2003-03-07 2004-09-23 Siemens Ag Radial piston pump
DE102009007213B4 (en) 2009-02-03 2017-06-14 Continental Automotive Gmbh Injector assembly for an injection valve
DE102011002955A1 (en) * 2011-01-21 2012-07-26 Robert Bosch Gmbh Fuel injector
JP2013181505A (en) * 2012-03-02 2013-09-12 Yanmar Co Ltd Fuel injection pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598863A (en) * 1983-01-20 1986-07-08 Usui Kokusai Sangyo Kabushiki Kaisha Fuel injector
US5638791A (en) * 1994-12-15 1997-06-17 Nippon Soken Inc. Common-rail fuel injection system for an engine
EP0851114A2 (en) * 1996-12-23 1998-07-01 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Perfected electromagnetic metering valve for a fuel injector
WO2000006892A2 (en) * 1998-07-31 2000-02-10 Siemens Aktiengesellschaft Fuel injector for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598863A (en) * 1983-01-20 1986-07-08 Usui Kokusai Sangyo Kabushiki Kaisha Fuel injector
US5638791A (en) * 1994-12-15 1997-06-17 Nippon Soken Inc. Common-rail fuel injection system for an engine
EP0851114A2 (en) * 1996-12-23 1998-07-01 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Perfected electromagnetic metering valve for a fuel injector
WO2000006892A2 (en) * 1998-07-31 2000-02-10 Siemens Aktiengesellschaft Fuel injector for internal combustion engines

Also Published As

Publication number Publication date
DE10019810A1 (en) 2002-01-31
EP1148234B1 (en) 2004-06-16
DE50102573D1 (en) 2004-07-22
EP1148234A2 (en) 2001-10-24

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