EP1559906A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP1559906A3
EP1559906A3 EP05001507A EP05001507A EP1559906A3 EP 1559906 A3 EP1559906 A3 EP 1559906A3 EP 05001507 A EP05001507 A EP 05001507A EP 05001507 A EP05001507 A EP 05001507A EP 1559906 A3 EP1559906 A3 EP 1559906A3
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
injection valve
seat
ejection opening
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Withdrawn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
EP05001507A
Other languages
German (de)
French (fr)
Other versions
EP1559906A2 (en
Inventor
Guenther Hohl
Detlef Nowak
Marco Vorbach
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 EP1559906A2 publication Critical patent/EP1559906A2/en
Publication of EP1559906A3 publication Critical patent/EP1559906A3/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Withdrawn legal-status Critical Current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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M61/08—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 opening in direction of fuel flow
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
    • 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
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other

Abstract

Ein Brennstoffeinspritzventil (1) weist einen Aktor auf, der mit einem Ventilschließkörper (4) in Wirkverbindung steht. Der Ventilschließkörper (4) wirkt mit einer an einem Ventilsitzkörper (5) angeordneten Ventilsitzfläche (6) zu einem Dichtsitz zusammen. Der Ventilsitzkörper (5) weist eine Abspritzöffnung (7) auf. Am stromabwärtigen Ende der Abspritzöffnung (7) sind in einer Nut (38) verlaufende Strömungsabrisskanten (39) angeordnet.

Figure imgaf001
A fuel injection valve (1) has an actuator, which is in operative connection with a valve closing body (4). The valve-closing body (4) cooperates with a valve-seat surface (6) arranged on a valve-seat body (5) to form a sealing seat. The valve seat body (5) has an ejection opening (7). At the downstream end of the ejection opening (7) in a groove (38) extending flow separation edges (39) are arranged.
Figure imgaf001
EP05001507A 2004-01-28 2005-01-26 Fuel injection valve Withdrawn EP1559906A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004169 2004-01-28
DE200410004169 DE102004004169A1 (en) 2004-01-28 2004-01-28 Fuel injector

Publications (2)

Publication Number Publication Date
EP1559906A2 EP1559906A2 (en) 2005-08-03
EP1559906A3 true EP1559906A3 (en) 2007-02-14

Family

ID=34638771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001507A Withdrawn EP1559906A3 (en) 2004-01-28 2005-01-26 Fuel injection valve

Country Status (2)

Country Link
EP (1) EP1559906A3 (en)
DE (1) DE102004004169A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2613396B (en) * 2021-12-02 2024-03-20 Delphi Tech Ip Ltd Fuel injector suitable for gaseous fuel

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740462A1 (en) * 1987-11-28 1989-06-08 Bosch Gmbh Robert Method for finishing valve needles for fuel-injection nozzles
DE4039520A1 (en) * 1989-12-12 1991-07-04 Nippon Denso Co FUEL INJECTION VALVE FOR DIESEL ENGINES
WO1993025814A1 (en) * 1992-06-10 1993-12-23 Robert Bosch Gmbh Injection nozzle for internal combustion engines
DE29504898U1 (en) * 1995-03-23 1996-07-25 Fev Motorentech Gmbh & Co Kg Valve nozzle
WO1999004159A1 (en) * 1997-07-18 1999-01-28 Zexel Corporation Fuel injection nozzle
WO2001081757A1 (en) * 2000-04-20 2001-11-01 Orbital Engine Company (Australia) Pty Limited Deposit control in fuel injector nozzles
US20040256494A1 (en) * 2003-06-03 2004-12-23 Varble Daniel L. Outwardly-opening fuel injector
EP1655482A1 (en) * 2004-11-04 2006-05-10 Siemens Aktiengesellschaft Valve for injecting fuel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152415A1 (en) 2001-10-24 2003-06-18 Bosch Gmbh Robert Fuel injector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740462A1 (en) * 1987-11-28 1989-06-08 Bosch Gmbh Robert Method for finishing valve needles for fuel-injection nozzles
DE4039520A1 (en) * 1989-12-12 1991-07-04 Nippon Denso Co FUEL INJECTION VALVE FOR DIESEL ENGINES
WO1993025814A1 (en) * 1992-06-10 1993-12-23 Robert Bosch Gmbh Injection nozzle for internal combustion engines
DE29504898U1 (en) * 1995-03-23 1996-07-25 Fev Motorentech Gmbh & Co Kg Valve nozzle
WO1999004159A1 (en) * 1997-07-18 1999-01-28 Zexel Corporation Fuel injection nozzle
WO2001081757A1 (en) * 2000-04-20 2001-11-01 Orbital Engine Company (Australia) Pty Limited Deposit control in fuel injector nozzles
US20040256494A1 (en) * 2003-06-03 2004-12-23 Varble Daniel L. Outwardly-opening fuel injector
EP1655482A1 (en) * 2004-11-04 2006-05-10 Siemens Aktiengesellschaft Valve for injecting fuel

Also Published As

Publication number Publication date
DE102004004169A1 (en) 2005-08-18
EP1559906A2 (en) 2005-08-03

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