DK201000309A - A fuel valve for large two stroke diesel engines - Google Patents

A fuel valve for large two stroke diesel engines Download PDF

Info

Publication number
DK201000309A
DK201000309A DKPA201000309A DKPA201000309A DK201000309A DK 201000309 A DK201000309 A DK 201000309A DK PA201000309 A DKPA201000309 A DK PA201000309A DK PA201000309 A DKPA201000309 A DK PA201000309A DK 201000309 A DK201000309 A DK 201000309A
Authority
DK
Denmark
Prior art keywords
nozzle
shaft
cut
fuel valve
valve
Prior art date
Application number
DKPA201000309A
Inventor
Flarup Johannes
Original Assignee
Man Diesel & Turbo Filial Tyskland
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 Man Diesel & Turbo Filial Tyskland filed Critical Man Diesel & Turbo Filial Tyskland
Priority to DKPA201000309A priority Critical patent/DK201000309A/en
Priority to DK11001060.0T priority patent/DK2378109T3/en
Priority to EP11001060A priority patent/EP2378109B1/en
Priority to PL11001060T priority patent/PL2378109T3/en
Priority to JP2011029525A priority patent/JP5269928B2/en
Priority to RU2011105685/06A priority patent/RU2486364C2/en
Priority to CN2011100562772A priority patent/CN102220924B/en
Priority to KR1020110033286A priority patent/KR101251395B1/en
Publication of DK201000309A publication Critical patent/DK201000309A/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

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 valve (1) for a large two-stroke diesel engine with a nozz (30) with conventionally arranged nozzle bores (35) that have a center line (36) substantially coinciding with the center line (34) of the axial bore (33) of the nozzle (30) and a hollow cut off shaft (40) received in the axial bore (33) in the nozzle (30) The cut off shaft (40) moves in unison with a valve needle (20) and closes of the nozzle holes (35) when the valve needle (20) rests on its seat (22) so that the sac volume is practically zero.

Claims (8)

CLAIMS :
1. A fuel valve {1) for injecting fuel into the combustion chamber of a large two stroke diesel engine, said fuel valve comprising: a fuel valve housing (10), an elongated nozzle (30) with axial bore and a closed front, a resiliently biased valve needle (20) cooperating with a valve seat (22) and configured to control the flow of fuel to the nozzle (30), a plurality of nozzle holes (35) distributed over the nozzle (30) with the center lines (36) of the nozzle holes (35) substantially coinciding with the center line (34) of an axial bore (33) of the nozzle (30), a hollow cut-off shaft (40) moving in unison with the valve needle (20) and received axially displaceable in the central bore (33). in the nozzle (30) for opening and closing the nozzle holes (35), said cut-off shaft (40) is provided with a plurality of openings (45) corresponding to the plurality of nozzle holes (35) so as to connect the nozzle holes (45) to the interior of the hollow cut-off shaft (40) in one position of the hollow cut-off shaft and to disconnect the nozzle (45) holes from the interior of the hollow cut-off shaft (40) in another position of the hollow cut-off shaft.
2. A fuel valve (1) according to claim 1, wherein the cut-off shaft (40) is prevented from rotating relative to the nozzle (30) and fuel valve housing (10) .
3. A fuel valve (1) according to claim 1, wherein said openings (45) in said cut-off shaft (40) overlap with the nozzle holes (35) when the valve needle (20) is lifted from its seat (22) .
4. A fuel valve (1) according to claim 1, wherein said openings (45) in said cut-off shaft (40) do not overlap with the nozzle holes (35) when the valve needle (20) is resting on its seat (22) .
5. A fuel valve (1) according to claim 1, wherein the hollow interior of the cut-off shaft (40) is connected to the inlet port (16) of the fuel valve (1) when the valve needle (20) is lifted from its seat (22).
6. A fuel valve (1) according to claim 1, wherein the valve needle (20) and the cut-off shaft (40) are formed as a single component.
7. A fuel valve (1) according to claim 1, wherein the nozzle holes ¢35) are distributed along the length of the nozzle without an overlap of the nozzle holes (35) as seen in direction of the longitudinal extend of the nozzle (30).
8. A fuel valve (1) according to claim 1, wherein the nozzle holes (35) are distributed along the length of the nozzle (30) with a substantial overlap of pairs of the nozzle holes ¢35) as seen in direction of the longitudinal extend of the nozzle (30).
DKPA201000309A 2010-04-15 2010-04-15 A fuel valve for large two stroke diesel engines DK201000309A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DKPA201000309A DK201000309A (en) 2010-04-15 2010-04-15 A fuel valve for large two stroke diesel engines
DK11001060.0T DK2378109T3 (en) 2010-04-15 2011-02-10 FUEL VALVE FOR LARGE TURBOLADED TOTAL SHEET DIESEL ENGINES
EP11001060A EP2378109B1 (en) 2010-04-15 2011-02-10 A fuel valve for large stroke diesel engines
PL11001060T PL2378109T3 (en) 2010-04-15 2011-02-10 A fuel valve for large stroke diesel engines
JP2011029525A JP5269928B2 (en) 2010-04-15 2011-02-15 Fuel valve for large 2-cycle diesel engine
RU2011105685/06A RU2486364C2 (en) 2010-04-15 2011-02-15 Fuel valve for larger two-stroke diesel engines
CN2011100562772A CN102220924B (en) 2010-04-15 2011-03-09 A fuel valve for large stroke diesel engines
KR1020110033286A KR101251395B1 (en) 2010-04-15 2011-04-11 A fuel valve for large two stroke diesel engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201000309A DK201000309A (en) 2010-04-15 2010-04-15 A fuel valve for large two stroke diesel engines

Publications (1)

Publication Number Publication Date
DK201000309A true DK201000309A (en) 2011-10-16

Family

ID=44269253

Family Applications (2)

Application Number Title Priority Date Filing Date
DKPA201000309A DK201000309A (en) 2010-04-15 2010-04-15 A fuel valve for large two stroke diesel engines
DK11001060.0T DK2378109T3 (en) 2010-04-15 2011-02-10 FUEL VALVE FOR LARGE TURBOLADED TOTAL SHEET DIESEL ENGINES

Family Applications After (1)

Application Number Title Priority Date Filing Date
DK11001060.0T DK2378109T3 (en) 2010-04-15 2011-02-10 FUEL VALVE FOR LARGE TURBOLADED TOTAL SHEET DIESEL ENGINES

Country Status (7)

Country Link
EP (1) EP2378109B1 (en)
JP (1) JP5269928B2 (en)
KR (1) KR101251395B1 (en)
CN (1) CN102220924B (en)
DK (2) DK201000309A (en)
PL (1) PL2378109T3 (en)
RU (1) RU2486364C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748179B (en) * 2012-08-01 2016-03-09 袁辉 Oil sprayer
DK178655B1 (en) * 2015-03-20 2016-10-17 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland Fuel valve for injecting fuel into a combustion chamber of a large self-igniting turbocharged two-stroke internal combustion engine
DK178692B1 (en) 2015-04-22 2016-11-21 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A fuel valve for a large two-stroke self-igniting internal combustion engine
CN107461287A (en) * 2016-06-06 2017-12-12 上海汽车集团股份有限公司 Fuel injector and its fuel injecting method, electronic control unit, engine and automobile
CN108443040A (en) * 2018-05-25 2018-08-24 李玉龙 Medium and heavy-duty engines monomer crosspointer valve twin-jet nozzle high pressure common rail injector

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR925557A (en) * 1945-11-14 1947-09-08 Saurer Ag Adolph Injection nozzle for internal combustion engines
JPS5122925A (en) * 1974-08-19 1976-02-24 Ota Minoru Nainenkikanniokeru kairyonenryobenfunko
DE2749378A1 (en) * 1977-11-04 1979-05-10 Bosch Gmbh Robert FUEL INJECTOR
US4398056A (en) * 1981-07-23 1983-08-09 Exxon Research And Engineering Co. Solar cell with reflecting grating substrate
DE3378909D1 (en) * 1982-10-20 1989-02-16 Takeda Chemical Industries Ltd Physiologically active substance p-23924, its production and use
JPH061048B2 (en) * 1984-03-08 1994-01-05 三菱重工業株式会社 Combustion device for diesel engine
JPH0417770A (en) * 1990-05-09 1992-01-22 Hino Motors Ltd Fuel injection device
JPH08193560A (en) * 1994-11-15 1996-07-30 Zexel Corp Variable nozzle hole type fuel injection nozzle
JPH08144896A (en) * 1994-11-25 1996-06-04 Zexel Corp Variable nozzle hole type fuel injection nozzle
JPH08296533A (en) * 1995-04-26 1996-11-12 Nippon Clean Engine Lab Co Ltd Fuel injection nozzle and combustion system therefor
DK174075B1 (en) * 1996-06-20 2002-05-21 Man B & W Diesel As Fuel injector for an internal combustion engine
EP1063416A3 (en) * 1999-06-25 2003-08-06 Delphi Technologies, Inc. Fuel injector
DK200201498A (en) * 2002-10-07 2004-04-08 Man B & W Diesel As An atomizer for a fuel valve in a diesel engine, and a method for producing an atomizer
WO2008071187A1 (en) * 2006-12-15 2008-06-19 Man Diesel A/S A fuel injector for an internal combustion engine
KR20090012056A (en) * 2007-07-27 2009-02-02 베르트질레 슈바이츠 악티엔게젤샤프트 An injection nozzle for fuel
DK2031237T3 (en) * 2007-08-31 2011-01-10 Waertsilae Nsd Schweiz Ag Injection nozzle for fuel injection

Also Published As

Publication number Publication date
DK2378109T3 (en) 2013-06-17
JP2011226465A (en) 2011-11-10
PL2378109T3 (en) 2013-08-30
RU2486364C2 (en) 2013-06-27
JP5269928B2 (en) 2013-08-21
CN102220924B (en) 2013-10-09
KR20110115526A (en) 2011-10-21
RU2011105685A (en) 2012-08-20
EP2378109B1 (en) 2013-03-20
KR101251395B1 (en) 2013-04-05
EP2378109A1 (en) 2011-10-19
CN102220924A (en) 2011-10-19

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Legal Events

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PHB Application deemed withdrawn due to non-payment or other reasons

Effective date: 20130430