ATE398237T1 - INJECTOR - Google Patents

INJECTOR

Info

Publication number
ATE398237T1
ATE398237T1 AT03251544T AT03251544T ATE398237T1 AT E398237 T1 ATE398237 T1 AT E398237T1 AT 03251544 T AT03251544 T AT 03251544T AT 03251544 T AT03251544 T AT 03251544T AT E398237 T1 ATE398237 T1 AT E398237T1
Authority
AT
Austria
Prior art keywords
valve needle
seating
valve
spray
conical
Prior art date
Application number
AT03251544T
Other languages
German (de)
Inventor
Malcolm D Lambert
Paul K Hewitt
Steve R Smith
Original Assignee
Delphi Tech Inc
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 Delphi Tech Inc filed Critical Delphi Tech Inc
Application granted granted Critical
Publication of ATE398237T1 publication Critical patent/ATE398237T1/en

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
    • 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
    • F02M61/16—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
    • F02M61/1893—Details of valve member ends not covered by groups F02M61/1866 - F02M61/188

Abstract

An injection nozzle for use in delivering fuel to a combustion space includes a valve member in the form of a valve needle (18) which is slidable within a bore (11) and engageable with a seating (12A) to control fuel flow through an outlet opening (25A, 25B). The valve needle (18) includes first and second surfaces (27, 29) of substantially conical or frusto-conical form, and a circumferential groove (26) formed in the valve needle (18) intermediate the first and second surfaces (27, 29). The second surface (29) of the valve needle (18) is disposed eccentrically relative to the first surface (27), thereby providing the effect of a bushy spray upon relatively low amounts of valve needle lift away from the seating, whilst maintaining good spray symmetry throughout the remainder of the range of travel of the valve needle (18). <IMAGE>
AT03251544T 2002-03-14 2003-03-13 INJECTOR ATE398237T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0205966.5A GB0205966D0 (en) 2002-03-14 2002-03-14 Injection nozzle

Publications (1)

Publication Number Publication Date
ATE398237T1 true ATE398237T1 (en) 2008-07-15

Family

ID=9932916

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03251544T ATE398237T1 (en) 2002-03-14 2003-03-13 INJECTOR

Country Status (4)

Country Link
EP (1) EP1344931B1 (en)
AT (1) ATE398237T1 (en)
DE (1) DE60321500D1 (en)
GB (1) GB0205966D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359302A1 (en) * 2003-12-17 2005-07-21 Robert Bosch Gmbh Valve body with multi-cone geometry at the valve seat

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636659A1 (en) * 1976-08-14 1978-02-16 Daimler Benz Ag External ignition piston engine with injection chamber - injects two jets during compression and spark ignites in pre-chamber to give two-stage ignition
DE2841967A1 (en) * 1978-09-27 1980-04-10 Daimler Benz Ag Multi-hole injection nozzle - has needle boss freeing main injection hole immediately after preliminary injection
JPS59153969A (en) * 1983-02-19 1984-09-01 Daihatsu Motor Co Ltd Fuel injection nozzle
JPS6248958A (en) * 1985-08-28 1987-03-03 Hino Motors Ltd Fuel injection nozzle
GB9425652D0 (en) 1994-12-20 1995-02-22 Lucas Ind Plc Fuel injection nozzle
JPH0953543A (en) * 1995-08-10 1997-02-25 Nippon Soken Inc Fuel injection valve
JP4221898B2 (en) * 2000-02-29 2009-02-12 株式会社デンソー Fuel injection nozzle

Also Published As

Publication number Publication date
EP1344931B1 (en) 2008-06-11
GB0205966D0 (en) 2002-04-24
EP1344931A3 (en) 2004-04-28
DE60321500D1 (en) 2008-07-24
EP1344931A2 (en) 2003-09-17

Similar Documents

Publication Publication Date Title
DE60044626D1 (en) Fuel injection valve
DE60017643D1 (en) Fuel injector
ATE387578T1 (en) FUEL INJECTION VALVE
ATE424506T1 (en) INJECTOR OF A FUEL INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE
ATE537352T1 (en) FUEL INJECTOR
ATE385542T1 (en) DEVICE FOR INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE
RU98120937A (en) FUEL INJECTOR CONTROL FOR INTERNAL COMBUSTION ENGINE
ATE350575T1 (en) INJECTOR
ATE380936T1 (en) INJECTOR
ATE391848T1 (en) INJECTOR
ATE391849T1 (en) INJECTOR
ATE398237T1 (en) INJECTOR
EP1077326A3 (en) Fuel injector
ATE388319T1 (en) INJECTOR
DK1566539T3 (en) Fuel injection nozzle
ATE325271T1 (en) INJECTOR
ATE487048T1 (en) INJECTOR
ATE371809T1 (en) INJECTOR
ATE453048T1 (en) INJECTOR
JPS6095186A (en) Intermittent type volute injection valve
DE60313914D1 (en) Fuel injector
EP1180587A3 (en) Externally ignited direct injecting reciprocating piston internal combustion engine with homogeneous mixture formation

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties