DK2031237T3 - Injection nozzle for fuel injection - Google Patents

Injection nozzle for fuel injection

Info

Publication number
DK2031237T3
DK2031237T3 DK08160784.8T DK08160784T DK2031237T3 DK 2031237 T3 DK2031237 T3 DK 2031237T3 DK 08160784 T DK08160784 T DK 08160784T DK 2031237 T3 DK2031237 T3 DK 2031237T3
Authority
DK
Denmark
Prior art keywords
nozzle
injection
outlets
valve
passages
Prior art date
Application number
DK08160784.8T
Other languages
Danish (da)
Inventor
Reiner Dr Schulz
Original Assignee
Waertsilae 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 Waertsilae Nsd Schweiz Ag filed Critical Waertsilae Nsd Schweiz Ag
Application granted granted Critical
Publication of DK2031237T3 publication Critical patent/DK2031237T3/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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0047—Four-way valves or valves with more than four ways
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The nozzle (10) has a nozzle head (3) with nozzle outlets (4.1, 4.2) for injecting fuel into a combustion chamber of a diesel engine. An injection valve has a valve needle (6) and a valve seat (7), which is connected with the outlets by passages (5.1, 5.2). The valve seat cooperates with the valve needle for controlling fuel supply to the outlets. An emptying device e.g. compressed air reservoir (15), is provided for emptying the passages. A line (17) is connected with the emptying device and maintains connection with one passage to empty the passage during closing the injection valve.
DK08160784.8T 2007-08-31 2008-07-21 Injection nozzle for fuel injection DK2031237T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07115450 2007-08-31

Publications (1)

Publication Number Publication Date
DK2031237T3 true DK2031237T3 (en) 2011-01-10

Family

ID=39092796

Family Applications (1)

Application Number Title Priority Date Filing Date
DK08160784.8T DK2031237T3 (en) 2007-08-31 2008-07-21 Injection nozzle for fuel injection

Country Status (9)

Country Link
EP (1) EP2031237B1 (en)
JP (1) JP2009057977A (en)
KR (1) KR20090023103A (en)
CN (1) CN101377181A (en)
AT (1) ATE483108T1 (en)
BR (1) BRPI0803370A2 (en)
DE (1) DE502008001427D1 (en)
DK (1) DK2031237T3 (en)
RU (1) RU2008135270A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090012056A (en) * 2007-07-27 2009-02-02 베르트질레 슈바이츠 악티엔게젤샤프트 Injection nozzle for fuel
DK201000309A (en) * 2010-04-15 2011-10-16 Man Diesel & Turbo Filial Tyskland A fuel valve for large two stroke diesel engines
DE102013002758B4 (en) 2013-02-19 2020-03-19 Woodward L'orange Gmbh Flushing procedure for use with a fuel injector
CN206487579U (en) * 2017-01-18 2017-09-12 江苏易实精密科技股份有限公司 A kind of diesel oil high pressure fuel injection device guide sleeve
DE102017201275B8 (en) * 2017-01-26 2018-11-22 Erwin Junker Grinding Technology A.S. COMBUSTION ENGINE WITH FUEL INJECTION NOZZLE WITH ADDITIONAL INTRODUCTION OF A COMBUSTION MEDIA TO THE COMBUSTION ENGINE
FR3105313B1 (en) * 2019-12-18 2021-12-31 Pfeiffer Vacuum Vacuum pump and method for injecting purge gas
WO2023182905A1 (en) * 2022-03-19 2023-09-28 Антон Васильевич ГОЛУБЕВ Single-plunger nozzle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130351A1 (en) * 1991-09-12 1993-03-18 Bosch Gmbh Robert DEVICE FOR INJECTING A FUEL-GAS MIXTURE
DK167502B1 (en) 1991-10-04 1993-11-08 Man B & W Diesel Gmbh FUEL ENGINE FOR COMBUSTION ENGINES
DE19815918A1 (en) * 1998-04-09 1999-10-21 Man B & W Diesel As Fuel injector
DK1566539T3 (en) * 2004-02-23 2009-04-14 Waertsilae Nsd Schweiz Ag Fuel injection nozzle

Also Published As

Publication number Publication date
ATE483108T1 (en) 2010-10-15
KR20090023103A (en) 2009-03-04
DE502008001427D1 (en) 2010-11-11
BRPI0803370A2 (en) 2009-05-05
JP2009057977A (en) 2009-03-19
EP2031237B1 (en) 2010-09-29
EP2031237A1 (en) 2009-03-04
CN101377181A (en) 2009-03-04
RU2008135270A (en) 2010-03-10

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