EP1213474A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP1213474A3
EP1213474A3 EP01124664A EP01124664A EP1213474A3 EP 1213474 A3 EP1213474 A3 EP 1213474A3 EP 01124664 A EP01124664 A EP 01124664A EP 01124664 A EP01124664 A EP 01124664A EP 1213474 A3 EP1213474 A3 EP 1213474A3
Authority
EP
European Patent Office
Prior art keywords
valve
valve seat
fuel injection
injection valve
seat surface
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.)
Withdrawn
Application number
EP01124664A
Other languages
German (de)
French (fr)
Other versions
EP1213474A2 (en
Inventor
Hubert Stier
Norbert Keim
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1213474A2 publication Critical patent/EP1213474A2/en
Publication of EP1213474A3 publication Critical patent/EP1213474A3/en
Withdrawn legal-status Critical Current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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies

Abstract

Ein Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in den Brennraum einer gemischverdichtenden, fremdgezündeten Brennkraftmaschine, umfaßt einen Ventilsitzkörper (5), eine darin angeordnete Ventilsitzfläche (6), und eine Ventilnadel (3), mit der ein Ventilschließkörper (4) in Wirkverbindung steht, der mit der Ventilsitzfläche (6) zu einem Dichtsitz zusammenwirkt, wobei in dem Ventilsitzkörper (5) stromabwärts der Ventilsitzfläche (6) eine Ausnehmung (32) eingebracht ist, die mit einem an dem Ventilschließkörper (4) befindlichen Führungszapfen (31) zu einer Führung der Ventilnadel (3) zusammenwirkt.

Figure 00000001
A fuel injection valve (1), in particular for injecting fuel directly into the combustion chamber of a mixture-compressing, spark-ignition internal combustion engine, comprises a valve seat body (5), a valve seat surface (6) arranged therein, and a valve needle (3) with which a valve closing body (4) is in operative connection, which cooperates with the valve seat surface (6) to form a sealing seat, a recess (32) being made in the valve seat body (5) downstream of the valve seat surface (6), which has a guide pin (31) on the valve closing body (4) ) interacts to guide the valve needle (3).
Figure 00000001
EP01124664A 2000-10-19 2001-10-16 Fuel injection valve Withdrawn EP1213474A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10051896 2000-10-19
DE2000151896 DE10051896A1 (en) 2000-10-19 2000-10-19 Fuel injection valve for IC engines has valve closure body with integral guide journal acting with valve seat body aperture for axial guidance

Publications (2)

Publication Number Publication Date
EP1213474A2 EP1213474A2 (en) 2002-06-12
EP1213474A3 true EP1213474A3 (en) 2004-01-07

Family

ID=7660362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124664A Withdrawn EP1213474A3 (en) 2000-10-19 2001-10-16 Fuel injection valve

Country Status (3)

Country Link
EP (1) EP1213474A3 (en)
JP (1) JP2002138924A (en)
DE (1) DE10051896A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009001131A1 (en) * 2008-12-09 2010-06-10 Robert Bosch Gmbh fuel injector
JP5617892B2 (en) * 2012-10-12 2014-11-05 トヨタ自動車株式会社 Fuel injection valve

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR765971A (en) * 1933-03-16 1934-06-19 Improvements to internal combustion engine injectors
CH204340A (en) * 1938-02-28 1939-04-30 Scintilla Ag Fuel injection device in internal combustion engines.
GB676535A (en) * 1949-08-09 1952-07-30 Cav Ltd Liquid fuel injection nozzles for internal combustion engines
DE855486C (en) * 1941-10-09 1952-11-13 Bosch Gmbh Robert Injection valve for internal combustion engines
JPS59206672A (en) * 1983-05-11 1984-11-22 Toyota Motor Corp Fuel injection valve of internal-combustion engine
JPH01240763A (en) * 1988-03-18 1989-09-26 Mitsubishi Heavy Ind Ltd Fuel injection valve
JPH08158989A (en) * 1994-12-07 1996-06-18 Nippondenso Co Ltd Fuel injection nozzle
JPH10176630A (en) * 1996-12-13 1998-06-30 Daihatsu Motor Co Ltd Fuel injection nozzle for diesel engine
JP2000130291A (en) * 1998-10-28 2000-05-09 Denso Corp Fuel injection nozzle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543805C2 (en) 1975-10-01 1986-05-07 Robert Bosch Gmbh, 7000 Stuttgart Electromagnetically actuated injection valve
DE4231448C1 (en) 1992-09-19 1993-10-21 Bosch Gmbh Robert Electromagnetic fuel injection valve for ic engine - with conical taper and radial edge downstream of valve seating surface for providing fine fuel vapour mist

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR765971A (en) * 1933-03-16 1934-06-19 Improvements to internal combustion engine injectors
CH204340A (en) * 1938-02-28 1939-04-30 Scintilla Ag Fuel injection device in internal combustion engines.
DE855486C (en) * 1941-10-09 1952-11-13 Bosch Gmbh Robert Injection valve for internal combustion engines
GB676535A (en) * 1949-08-09 1952-07-30 Cav Ltd Liquid fuel injection nozzles for internal combustion engines
JPS59206672A (en) * 1983-05-11 1984-11-22 Toyota Motor Corp Fuel injection valve of internal-combustion engine
JPH01240763A (en) * 1988-03-18 1989-09-26 Mitsubishi Heavy Ind Ltd Fuel injection valve
JPH08158989A (en) * 1994-12-07 1996-06-18 Nippondenso Co Ltd Fuel injection nozzle
JPH10176630A (en) * 1996-12-13 1998-06-30 Daihatsu Motor Co Ltd Fuel injection nozzle for diesel engine
JP2000130291A (en) * 1998-10-28 2000-05-09 Denso Corp Fuel injection nozzle

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 077 (M - 369) 6 April 1985 (1985-04-06) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 11 30 September 1998 (1998-09-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08 6 October 2000 (2000-10-06) *

Also Published As

Publication number Publication date
DE10051896A1 (en) 2002-05-02
EP1213474A2 (en) 2002-06-12
JP2002138924A (en) 2002-05-17

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