DK2239451T3 - Fuel injection device for internal combustion engines - Google Patents

Fuel injection device for internal combustion engines

Info

Publication number
DK2239451T3
DK2239451T3 DK09156590.3T DK09156590T DK2239451T3 DK 2239451 T3 DK2239451 T3 DK 2239451T3 DK 09156590 T DK09156590 T DK 09156590T DK 2239451 T3 DK2239451 T3 DK 2239451T3
Authority
DK
Denmark
Prior art keywords
cut
atomizer
longitudinal bore
section
internal combustion
Prior art date
Application number
DK09156590.3T
Other languages
Danish (da)
Inventor
Pierpaolo Miotti
Marco Destro
Marco Coppo
Luca Formia
Marco Garlasche
Massimo Lombardo
Original Assignee
Waertsilae Switzerland 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 Waertsilae Switzerland Ltd filed Critical Waertsilae Switzerland Ltd
Application granted granted Critical
Publication of DK2239451T3 publication Critical patent/DK2239451T3/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
    • F02M61/1806—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
    • F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/042—The valves being provided with fuel passages
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M61/1866—Valve seats or member ends having multiple cones
    • 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)

Abstract

A fuel injector for internal combustion engines, comprising: - a housing (16), - a valve guide (38) fixed at a lower end of said housing (16), the valve guide (38) having a longitudinal guide bore (44) and a chamber (46) provided with a valve seat (50), said chamber (46) being connected to a fuel supply duct (22,48); - an atomizer (56) fixed at a lower end of said valve guide (38), the atomizer (56) having a longitudinal bore (80) in flow connection with said chamber (46), the atomizer having a plurality of nozzle bores (82) having inlet openings (84) facing into said longitudinal bore (80); - a spindle (88) having a valve portion (92) cooperating with said valve seat (50), and a cut-off element (94) extending into said longitudinal bore (80) of the atomizer (56), wherein an upper cut-off section (102) and a lower cut-off section (106) axially spaced apart from each other are defined between the outer surface of the cut-off element (94) and the inner surface of the longitudinal bore (80), cut-off sections (102,106) being both closed in the closed position of the spindle (88), the cut-off element (94) having a central duct (112) in flow connection with the longitudinal bore (80) of the atomizer (56) both above the upper cut-off section (102) and below the lower cut-off section (106).
DK09156590.3T 2009-03-30 2009-03-30 Fuel injection device for internal combustion engines DK2239451T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09156590A EP2239451B1 (en) 2009-03-30 2009-03-30 A fuel injector for internal combustion engines

Publications (1)

Publication Number Publication Date
DK2239451T3 true DK2239451T3 (en) 2011-10-10

Family

ID=40941514

Family Applications (1)

Application Number Title Priority Date Filing Date
DK09156590.3T DK2239451T3 (en) 2009-03-30 2009-03-30 Fuel injection device for internal combustion engines

Country Status (6)

Country Link
EP (1) EP2239451B1 (en)
JP (1) JP5822249B2 (en)
KR (1) KR101686671B1 (en)
CN (1) CN101852157B (en)
AT (1) ATE523686T1 (en)
DK (1) DK2239451T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010040401A1 (en) * 2010-09-08 2012-03-08 Robert Bosch Gmbh fuel injector
EP2503138B1 (en) * 2011-03-24 2013-05-08 OMT Officine Meccaniche Torino S.p.A. Electrically-controlled fuel injector for large diesel engines
JP5798898B2 (en) * 2011-11-24 2015-10-21 三菱重工業株式会社 Fuel injection device
DE102013001098B3 (en) * 2013-01-23 2014-07-03 L'orange Gmbh Fuel injector for use in common-rail system in motor car, has nozzle needle comprising end section that is sealingly retained in through-hole of nozzle tip, where axial bore is extended as blind hole towards near nozzle into end section
US10337448B2 (en) * 2015-12-22 2019-07-02 Ford Global Technologies, Llc Methods and systems for a fuel injector assembly
DK179281B1 (en) * 2016-12-13 2018-04-03 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland Nozzle for fuel valve for injecting fuel into the cylinders of a large turbocharged two-stroke compression-ignited internal combustion engine
JP7079182B2 (en) * 2018-10-26 2022-06-01 株式会社クボタ Electronic fuel injection diesel engine
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 (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2711902A1 (en) * 1977-03-18 1978-09-21 Bosch Gmbh Robert FUEL INJECTOR
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
DK495880A (en) 1980-11-20 1982-05-21 B & W Diesel As FUEL ENGINE FOR COMBUSTION ENGINES
JPH0158770U (en) * 1987-10-07 1989-04-12
JPH0538353U (en) * 1991-10-30 1993-05-25 いすゞ自動車株式会社 Hole type nozzle
JPH05321789A (en) * 1992-05-15 1993-12-07 Kubota Corp Multihole nozzle type fuel injection on valve for diesel engine
JPH08144896A (en) * 1994-11-25 1996-06-04 Zexel Corp Variable nozzle hole type fuel injection nozzle
DE19815918A1 (en) * 1998-04-09 1999-10-21 Man B & W Diesel As Fuel injector
JPH11351103A (en) * 1998-06-13 1999-12-21 Toyota Central Res & Dev Lab Inc Fuel injection valve
US6467702B1 (en) * 1999-06-25 2002-10-22 Delphi Technologies, Inc. Fuel injector
JP4182315B2 (en) * 2000-02-04 2008-11-19 株式会社デンソー Fuel injection nozzle
CZ296968B6 (en) * 2000-02-07 2006-08-16 Robert Bosch Gmbh Injection nozzle
CN101558231B (en) * 2006-12-15 2012-01-04 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 A fuel injector for an internal combustion engine
WO2008071187A1 (en) 2006-12-15 2008-06-19 Man Diesel A/S A fuel injector for an internal combustion engine

Also Published As

Publication number Publication date
JP2010236536A (en) 2010-10-21
EP2239451A1 (en) 2010-10-13
JP5822249B2 (en) 2015-11-24
CN101852157B (en) 2015-06-24
ATE523686T1 (en) 2011-09-15
CN101852157A (en) 2010-10-06
EP2239451B1 (en) 2011-09-07
KR101686671B1 (en) 2016-12-14
KR20100109501A (en) 2010-10-08

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