FR2328855A1 - Valve for fuel injector of IC engine - has sealing zone restricted by two parallel edges - Google Patents

Valve for fuel injector of IC engine - has sealing zone restricted by two parallel edges

Info

Publication number
FR2328855A1
FR2328855A1 FR7631582A FR7631582A FR2328855A1 FR 2328855 A1 FR2328855 A1 FR 2328855A1 FR 7631582 A FR7631582 A FR 7631582A FR 7631582 A FR7631582 A FR 7631582A FR 2328855 A1 FR2328855 A1 FR 2328855A1
Authority
FR
France
Prior art keywords
valve
fuel injector
engine
valve head
parallel edges
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Withdrawn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
FR7631582A
Other languages
French (fr)
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 FR2328855A1 publication Critical patent/FR2328855A1/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Withdrawn legal-status Critical Current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
    • F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal

Abstract

The valve of a fuel injector for an internal combustion engine consists of a valve head (12) sliding in a cylindrical body (10). A spring presses the valve head (12) onto the seat (13) to seal off the orifices (15). The valve is opened by the pressure of the fuel supplied through the passage-way (16) acting on the underside of the valve head. A shallow groove (14) is formed in the conical surface of the valve head so that so parallel sharp edges are formed. When the valve is closed these edges form a seal on each side of the orifices (15). The edges can deform under the sealing pressure to accommodate dimensional inaccuracies.
FR7631582A 1975-10-21 1976-10-20 Valve for fuel injector of IC engine - has sealing zone restricted by two parallel edges Withdrawn FR2328855A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4307475 1975-10-21

Publications (1)

Publication Number Publication Date
FR2328855A1 true FR2328855A1 (en) 1977-05-20

Family

ID=10427217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7631582A Withdrawn FR2328855A1 (en) 1975-10-21 1976-10-20 Valve for fuel injector of IC engine - has sealing zone restricted by two parallel edges

Country Status (1)

Country Link
FR (1) FR2328855A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383324A1 (en) * 1977-03-09 1978-10-06 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
WO2000019088A1 (en) * 1998-09-29 2000-04-06 Siemens Aktiengesellschaft Fuel injection valve for an internal combustion engine
WO2004044414A1 (en) * 2002-11-11 2004-05-27 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
EP1555430A1 (en) * 2004-01-13 2005-07-20 Delphi Technologies, Inc. Injection nozzle
EP1566538A1 (en) * 2004-02-20 2005-08-24 Delphi Technologies, Inc. Injection nozzle
EP1643117A1 (en) * 2004-10-01 2006-04-05 Delphi Technologies, Inc. Injection nozzle
US7143964B2 (en) 2002-11-11 2006-12-05 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
US7404526B2 (en) 2004-02-20 2008-07-29 Delphi Technologies, Inc. Injection nozzle

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383324A1 (en) * 1977-03-09 1978-10-06 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
WO2000019088A1 (en) * 1998-09-29 2000-04-06 Siemens Aktiengesellschaft Fuel injection valve for an internal combustion engine
US6546914B1 (en) 1998-09-29 2003-04-15 Siemens Aktiengesellschaft Fuel injection valve for an internal combustion engine
US7331537B2 (en) 2002-11-11 2008-02-19 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
US7143964B2 (en) 2002-11-11 2006-12-05 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
WO2004044414A1 (en) * 2002-11-11 2004-05-27 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
CN100400850C (en) * 2002-11-11 2008-07-09 罗伯特·博世有限公司 Fuel injection valve for internal combustion engines
EP1555430A1 (en) * 2004-01-13 2005-07-20 Delphi Technologies, Inc. Injection nozzle
US7168412B2 (en) 2004-01-13 2007-01-30 Delphi Technologies, Inc. Injection nozzle
EP1566538A1 (en) * 2004-02-20 2005-08-24 Delphi Technologies, Inc. Injection nozzle
US7404526B2 (en) 2004-02-20 2008-07-29 Delphi Technologies, Inc. Injection nozzle
EP1643117A1 (en) * 2004-10-01 2006-04-05 Delphi Technologies, Inc. Injection nozzle
US7523875B2 (en) 2004-10-01 2009-04-28 Delphi Technologies, Inc. Injection nozzle

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Legal Events

Date Code Title Description
ST Notification of lapse