DE502005006448D1 - fuel injector - Google Patents

fuel injector

Info

Publication number
DE502005006448D1
DE502005006448D1 DE502005006448T DE502005006448T DE502005006448D1 DE 502005006448 D1 DE502005006448 D1 DE 502005006448D1 DE 502005006448 T DE502005006448 T DE 502005006448T DE 502005006448 T DE502005006448 T DE 502005006448T DE 502005006448 D1 DE502005006448 D1 DE 502005006448D1
Authority
DE
Germany
Prior art keywords
nozzle
fuel injection
valve seat
fuel injector
longitudinal bore
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.)
Active
Application number
DE502005006448T
Other languages
German (de)
Inventor
David Imhasly
Klaus Heim
Roland Alder
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.)
Wartsila NSD Schweiz AG
Original Assignee
Wartsila NSD Schweiz AG
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 Wartsila NSD Schweiz AG filed Critical Wartsila NSD Schweiz AG
Publication of DE502005006448D1 publication Critical patent/DE502005006448D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • 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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • 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
    • 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

Abstract

The fuel injection nozzle for an internal combustion engine comprises a nozzle body (2), nozzle head (3), and a nozzle needle (7) inside the body and interacting with a valve seat (8) by its end. The nozzle body has a longitudinal bore (32) extending from the valve seat through the nozzle head. The ratio of the length (L) of the longitudinal bore and its flow diameter comes to at least 17, preferably at least 20, and especially more than 22. An independent claim is included for a diesel engine, especially a two-stroke large diesel engine, equipped with the proposed fuel injection nozzle.
DE502005006448T 2004-02-23 2005-01-25 fuel injector Active DE502005006448D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405099 2004-02-23

Publications (1)

Publication Number Publication Date
DE502005006448D1 true DE502005006448D1 (en) 2009-03-05

Family

ID=34932043

Family Applications (1)

Application Number Title Priority Date Filing Date
DE502005006448T Active DE502005006448D1 (en) 2004-02-23 2005-01-25 fuel injector

Country Status (8)

Country Link
EP (1) EP1566539B1 (en)
JP (1) JP2005240805A (en)
KR (1) KR101264814B1 (en)
CN (1) CN100564865C (en)
AT (1) ATE421039T1 (en)
DE (1) DE502005006448D1 (en)
DK (1) DK1566539T3 (en)
PL (1) PL1566539T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080006713A1 (en) * 2006-07-06 2008-01-10 Parish James R Fuel injector having an internally mounted cross-flow nozzle for enhanced compressed natural gas jet spray
EP2031237B1 (en) * 2007-08-31 2010-09-29 Wärtsilä Schweiz AG Injection nozzle for injecting fuel
CN101694199B (en) * 2009-08-20 2011-05-11 余姚市舒春机械有限公司 Nozzle of low-speed diesel engine
EP3267027A1 (en) * 2016-07-07 2018-01-10 Winterthur Gas & Diesel AG Nozzle head for a fuel injection valve of a large diesel engine, and method for manufacturing same
DK181318B1 (en) * 2022-02-18 2023-08-10 Man Energy Solutions Filial Af Man Energy Solutions Se Tyskland A fuel valve for a large turbocharged two-stroke uniflow crosshead internal combustion engine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482591C (en) * 1927-04-30 1930-02-03 Werke Kiel Akt Ges Deutsche Fuel injector for internal combustion engines
DE2948451A1 (en) * 1979-12-01 1981-06-04 Robert Bosch Gmbh, 7000 Stuttgart Fuel injector for IC engine - has push rod upstream of valve determining cross=section of injection openings
DE3234829A1 (en) * 1982-09-21 1984-03-22 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln INJECTION DEVICE FOR A DIESEL ENGINE
CS249562B1 (en) * 1983-08-23 1987-04-16 Vaclav Rysan Multi-opening injection jet
JPH0639095Y2 (en) * 1988-03-09 1994-10-12 住友重機械工業株式会社 Fuel injection nozzle for diesel engine
US5026462A (en) * 1990-03-06 1991-06-25 Ail Corporation Method and apparatus for electrochemical machining of spray holes in fuel injection nozzles
JPH10176631A (en) * 1996-12-18 1998-06-30 Nippon Soken Inc Fuel injection valve
JPH11117830A (en) * 1997-10-20 1999-04-27 Hitachi Ltd Injector
ATE388322T1 (en) * 2002-04-11 2008-03-15 Waertsilae Nsd Schweiz Ag NOZZLE HEAD FOR A FUEL INJECTION NOZZLE
KR101307563B1 (en) * 2003-07-16 2013-09-12 베르트질레 슈바이츠 악티엔게젤샤프트 Piston for a high pressure piston in cylinder unit

Also Published As

Publication number Publication date
JP2005240805A (en) 2005-09-08
EP1566539B1 (en) 2009-01-14
KR101264814B1 (en) 2013-05-15
KR20060043061A (en) 2006-05-15
PL1566539T3 (en) 2009-05-29
ATE421039T1 (en) 2009-01-15
EP1566539A1 (en) 2005-08-24
CN100564865C (en) 2009-12-02
CN1661227A (en) 2005-08-31
DK1566539T3 (en) 2009-04-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition