WO2008126482A1 - 燃料噴射弁 - Google Patents

燃料噴射弁 Download PDF

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Publication number
WO2008126482A1
WO2008126482A1 PCT/JP2008/053169 JP2008053169W WO2008126482A1 WO 2008126482 A1 WO2008126482 A1 WO 2008126482A1 JP 2008053169 W JP2008053169 W JP 2008053169W WO 2008126482 A1 WO2008126482 A1 WO 2008126482A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure fuel
valve
valve body
fuel injection
fuel
Prior art date
Application number
PCT/JP2008/053169
Other languages
English (en)
French (fr)
Inventor
Kenichi Kubo
Takehiko Ishikawa
Kiyoshi Matsuzaki
Original Assignee
Bosch Corporation
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 Bosch Corporation filed Critical Bosch Corporation
Priority to KR1020097016509A priority Critical patent/KR20090108624A/ko
Priority to EP08720822A priority patent/EP2146084A4/en
Priority to US12/595,073 priority patent/US20100065020A1/en
Priority to CN200880011364A priority patent/CN101652559A/zh
Publication of WO2008126482A1 publication Critical patent/WO2008126482A1/ja

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
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid 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
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Abstract

　高圧燃料の圧力に対する耐久性に優れ、さらなる高圧の燃料を噴射する場合であっても精度良く噴射制御を行うことができる燃料噴射弁を提供する。 　インジェクタハウジング内のノズルニードルの後端部側に、高圧燃料を排出するための排出孔が形成されたバルブボディと、軸方向におけるリフト及びシートによって排出孔の開閉を行うバルブと、を備え、バルブボディとインジェクタハウジングとの間の間隙は、バルブボディのノズルニードル側の端部方向に開放され、高圧燃料が通過可能であることを特徴とする。
PCT/JP2008/053169 2007-04-09 2008-02-25 燃料噴射弁 WO2008126482A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020097016509A KR20090108624A (ko) 2007-04-09 2008-02-25 연료 분사 밸브
EP08720822A EP2146084A4 (en) 2007-04-09 2008-02-25 FUEL INJECTION VALVE
US12/595,073 US20100065020A1 (en) 2007-04-09 2008-02-25 Fuel injector
CN200880011364A CN101652559A (zh) 2007-04-09 2008-02-25 燃料喷射阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007101364A JP4868524B2 (ja) 2007-04-09 2007-04-09 燃料噴射弁
JP2007-101364 2007-04-09

Publications (1)

Publication Number Publication Date
WO2008126482A1 true WO2008126482A1 (ja) 2008-10-23

Family

ID=39863638

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/053169 WO2008126482A1 (ja) 2007-04-09 2008-02-25 燃料噴射弁

Country Status (6)

Country Link
US (1) US20100065020A1 (ja)
EP (1) EP2146084A4 (ja)
JP (1) JP4868524B2 (ja)
KR (1) KR20090108624A (ja)
CN (1) CN101652559A (ja)
WO (1) WO2008126482A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011185264A (ja) * 2010-02-11 2011-09-22 Denso Corp インジェクタ

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011015753A1 (de) * 2011-03-31 2012-10-04 Raphael Füchslin Einspritzventil
CN102251896B (zh) * 2011-06-14 2012-07-11 常州博瑞油泵油嘴有限公司 柴油机高压共轨喷油器的平面启闭结构
DE102012110240A1 (de) * 2012-10-26 2014-04-30 L'orange Gmbh Kraftstoff-Einspritz-Injektor für Brennkraftmaschinen
CN105275693B (zh) * 2014-06-08 2019-11-08 董仲国 双针阀喷油器总成
JP6507890B2 (ja) * 2015-07-02 2019-05-08 株式会社デンソー 燃料噴射弁
JP7041568B2 (ja) * 2018-03-28 2022-03-24 本田技研工業株式会社 燃料ガス噴射装置及び燃料電池システム
US11280306B1 (en) 2021-01-15 2022-03-22 Caterpillar Inc. Fuel injector having dry-running protection valve and fuel system using same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002048028A (ja) * 2000-08-03 2002-02-15 Denso Corp 燃料噴射装置
JP2003021017A (ja) * 2001-07-10 2003-01-24 Bosch Automotive Systems Corp 蓄圧式燃料噴射装置
JP2003506621A (ja) * 1999-08-04 2003-02-18 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング コモンレール・インジェクタ
JP2003269286A (ja) * 2002-03-12 2003-09-25 Denso Corp 燃料噴射装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949527A1 (de) * 1999-10-14 2001-04-19 Bosch Gmbh Robert Injektor für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen mit in den Ventilsteuerraum ragender Düsennadel
DE102005059437A1 (de) * 2005-12-13 2007-06-14 Robert Bosch Gmbh Kraftstoffinjektor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003506621A (ja) * 1999-08-04 2003-02-18 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング コモンレール・インジェクタ
JP2002048028A (ja) * 2000-08-03 2002-02-15 Denso Corp 燃料噴射装置
JP2003021017A (ja) * 2001-07-10 2003-01-24 Bosch Automotive Systems Corp 蓄圧式燃料噴射装置
JP2003269286A (ja) * 2002-03-12 2003-09-25 Denso Corp 燃料噴射装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2146084A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011185264A (ja) * 2010-02-11 2011-09-22 Denso Corp インジェクタ

Also Published As

Publication number Publication date
KR20090108624A (ko) 2009-10-15
CN101652559A (zh) 2010-02-17
EP2146084A4 (en) 2010-05-12
JP2008255958A (ja) 2008-10-23
EP2146084A1 (en) 2010-01-20
JP4868524B2 (ja) 2012-02-01
US20100065020A1 (en) 2010-03-18

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