FR2367926A1 - INTERNAL COMBUSTION ENGINE INJECTOR - Google Patents

INTERNAL COMBUSTION ENGINE INJECTOR

Info

Publication number
FR2367926A1
FR2367926A1 FR7731005A FR7731005A FR2367926A1 FR 2367926 A1 FR2367926 A1 FR 2367926A1 FR 7731005 A FR7731005 A FR 7731005A FR 7731005 A FR7731005 A FR 7731005A FR 2367926 A1 FR2367926 A1 FR 2367926A1
Authority
FR
France
Prior art keywords
valve
seat
fuel
injector
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
FR7731005A
Other languages
French (fr)
Other versions
FR2367926B1 (en
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2367926A1 publication Critical patent/FR2367926A1/en
Application granted granted Critical
Publication of FR2367926B1 publication Critical patent/FR2367926B1/fr
Granted 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/06—Fuel-injectors combined or associated with other devices the devices being sparking plugs
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • 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
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements

Abstract

L'invention a pour objet un injecteur de combustible destiné à fournir directement du combustible à une chambre de combustion d'un moteur à combustion interne, l'injecteur comprenant un clapet mobile à l'intérieur d'un alésage, un siège dans l'alésage, la forme du clapet lui permettant de coopérer avec ledit siège pour commander la circulation du combustible à travers un orifice de sortie, des moyens élastiques rappelant le clapet en contact avec le siège, une surface étant définie sur le clapet, sur laquelle peut s'exercer la pression du combustible pour soulever le clapet de son siège. L'injecteur selon l'invention comprend un générateur à cristaux piézoélectriques placé de façon à être soumis à un impact, soit directement par le clapet, soit indirectement par un élément déplacé par le clapet lorsque ce dernier s'écarte de son siège.The object of the invention is a fuel injector intended to supply fuel directly to a combustion chamber of an internal combustion engine, the injector comprising a valve movable inside a bore, a seat in the bore, the shape of the valve allowing it to cooperate with said seat to control the flow of fuel through an outlet orifice, elastic means bringing the valve back into contact with the seat, a surface being defined on the valve, on which can s '' exert fuel pressure to lift the valve from its seat. The injector according to the invention comprises a piezoelectric crystal generator placed so as to be subjected to an impact, either directly by the valve, or indirectly by an element moved by the valve when the latter moves away from its seat.

FR7731005A 1976-10-15 1977-10-14 INTERNAL COMBUSTION ENGINE INJECTOR Granted FR2367926A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4288276A GB1591508A (en) 1976-10-15 1976-10-15 Fuel injection nozzle units for direct injection internal combustion engines

Publications (2)

Publication Number Publication Date
FR2367926A1 true FR2367926A1 (en) 1978-05-12
FR2367926B1 FR2367926B1 (en) 1982-11-19

Family

ID=10426377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731005A Granted FR2367926A1 (en) 1976-10-15 1977-10-14 INTERNAL COMBUSTION ENGINE INJECTOR

Country Status (3)

Country Link
ES (1) ES463249A1 (en)
FR (1) FR2367926A1 (en)
GB (1) GB1591508A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589523A1 (en) * 1985-11-02 1987-05-07 Nippon Soken PIEZOELECTRIC TYPE FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINE
WO1989012738A1 (en) * 1988-06-13 1989-12-28 Robert Bosch Gmbh Injection and ignition in fuel injected spark ignition engines

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170554A (en) * 1985-02-06 1986-08-06 Lucas Ind Plc I.C. engine fuel injection nozzle lift sensors
DE19649812A1 (en) * 1996-12-02 1998-06-04 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
MX2013006424A (en) * 2010-12-06 2013-09-02 Mcalister Technologies Llc Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and asscociated methods of use and manufacture.
FR2979388B1 (en) * 2011-08-26 2013-10-04 Snecma IGNITION DEVICE AND METHOD FOR TURBOMACHINE COMBUSTION CHAMBER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589523A1 (en) * 1985-11-02 1987-05-07 Nippon Soken PIEZOELECTRIC TYPE FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINE
WO1989012738A1 (en) * 1988-06-13 1989-12-28 Robert Bosch Gmbh Injection and ignition in fuel injected spark ignition engines

Also Published As

Publication number Publication date
GB1591508A (en) 1981-06-24
ES463249A1 (en) 1978-06-16
FR2367926B1 (en) 1982-11-19

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Legal Events

Date Code Title Description
ST Notification of lapse