DE60321500D1 - injection - Google Patents

injection

Info

Publication number
DE60321500D1
DE60321500D1 DE60321500T DE60321500T DE60321500D1 DE 60321500 D1 DE60321500 D1 DE 60321500D1 DE 60321500 T DE60321500 T DE 60321500T DE 60321500 T DE60321500 T DE 60321500T DE 60321500 D1 DE60321500 D1 DE 60321500D1
Authority
DE
Germany
Prior art keywords
valve needle
seating
valve
spray
conical
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.)
Expired - Fee Related
Application number
DE60321500T
Other languages
German (de)
Inventor
Malcolm D Lambert
Paul K Hewitt
Steve R Smith
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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 Technologies Inc filed Critical Delphi Technologies Inc
Application granted granted Critical
Publication of DE60321500D1 publication Critical patent/DE60321500D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

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>
DE60321500T 2002-03-14 2003-03-13 injection Expired - Fee Related DE60321500D1 (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
DE60321500D1 true DE60321500D1 (en) 2008-07-24

Family

ID=9932916

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60321500T Expired - Fee Related DE60321500D1 (en) 2002-03-14 2003-03-13 injection

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
GB0205966D0 (en) 2002-04-24
EP1344931B1 (en) 2008-06-11
EP1344931A3 (en) 2004-04-28
ATE398237T1 (en) 2008-07-15
EP1344931A2 (en) 2003-09-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee