WO2008120086A3 - Fuel injection device - Google Patents

Fuel injection device Download PDF

Info

Publication number
WO2008120086A3
WO2008120086A3 PCT/IB2008/000763 IB2008000763W WO2008120086A3 WO 2008120086 A3 WO2008120086 A3 WO 2008120086A3 IB 2008000763 W IB2008000763 W IB 2008000763W WO 2008120086 A3 WO2008120086 A3 WO 2008120086A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
nozzle body
passage
needle valve
fuel passage
Prior art date
Application number
PCT/IB2008/000763
Other languages
French (fr)
Other versions
WO2008120086A2 (en
Inventor
Fumihiro Okumura
Yoshimasa Watanabe
Yoshinori Futonagane
Aleksander Kocoski
Shigeo Nomura
Yoshiaki Nishijima
Original Assignee
Toyota Motor Co Ltd
Denso Corp
Fumihiro Okumura
Yoshimasa Watanabe
Yoshinori Futonagane
Aleksander Kocoski
Shigeo Nomura
Yoshiaki Nishijima
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 Toyota Motor Co Ltd, Denso Corp, Fumihiro Okumura, Yoshimasa Watanabe, Yoshinori Futonagane, Aleksander Kocoski, Shigeo Nomura, Yoshiaki Nishijima filed Critical Toyota Motor Co Ltd
Publication of WO2008120086A2 publication Critical patent/WO2008120086A2/en
Publication of WO2008120086A3 publication Critical patent/WO2008120086A3/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
    • F02M61/1813—Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M61/16—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
    • F02M61/1826—Discharge orifices having different sizes
    • 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
    • F02M61/1846—Dimensional characteristics of discharge orifices
    • 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
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies

Abstract

A fuel injection device (IA) includes: a needle valve; and a nozzle body (10) that accommodates the needle valve (20), which reciprocates along the axis (AX) of the nozzle body, and that includes a fuel passage having a fuel inlet port formed in a portion of the inner wall surface (13) of the nozzle body that comes in contact with the needle valve (20). The nozzle body (10) has a first fuel passage (14) and a second fuel passage (16). A merged injection hole (18), at which outlet ports of the first and second fuel passages (14, 16) merge, is formed in a surface of the nozzle body (10). The passage cross sectional area of the merged injection hole (18) is larger than the sum of the passage cross sectional areas of the first and second fuel passages (14, 16). The axis line (Ll) of the first fuel passage (14) and the axis line (L2) of the second fuel passage (16) intersect each other in the merged injection hole (18).
PCT/IB2008/000763 2007-04-02 2008-04-01 Fuel injection device WO2008120086A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-096911 2007-04-02
JP2007096911A JP2008255834A (en) 2007-04-02 2007-04-02 Fuel injection device

Publications (2)

Publication Number Publication Date
WO2008120086A2 WO2008120086A2 (en) 2008-10-09
WO2008120086A3 true WO2008120086A3 (en) 2008-11-27

Family

ID=39720131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000763 WO2008120086A2 (en) 2007-04-02 2008-04-01 Fuel injection device

Country Status (3)

Country Link
JP (1) JP2008255834A (en)
CN (1) CN101631950A (en)
WO (1) WO2008120086A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818712A (en) * 2010-04-28 2010-09-01 大连理工大学 Diesel engine combustion system
DE102010063844A1 (en) * 2010-12-22 2012-06-28 Continental Automotive Gmbh Nozzle body with an injection hole with at least two inlet openings
CN102705125A (en) * 2012-07-07 2012-10-03 中国船舶重工集团公司第七�三研究所 Fuel injector with cross-disturbance nozzles
KR20150032913A (en) * 2012-08-01 2015-03-30 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Fuel injectors with non-coined three-dimensional nozzle inlet face
US10590899B2 (en) 2012-08-01 2020-03-17 3M Innovative Properties Company Fuel injectors with improved coefficient of fuel discharge
MX2015006381A (en) * 2012-11-20 2016-02-16 Nostrum Energy Pte Ltd Liquid injector atomizer with colliding jets.
JP2017031952A (en) * 2015-08-06 2017-02-09 日立オートモティブシステムズ株式会社 Fuel injector
CN105971795A (en) * 2016-07-12 2016-09-28 江西汇尔油泵油嘴有限公司 Oil injection nozzle with crossed spraying holes and crossed oil injection method
EP3521610A4 (en) * 2016-09-28 2020-06-03 Hitachi Automotive Systems, Ltd. Fuel injection valve
JP6703474B2 (en) * 2016-12-19 2020-06-03 日立オートモティブシステムズ株式会社 Fuel injection valve
DE102018206899A1 (en) * 2018-05-04 2019-11-07 Robert Bosch Gmbh Injector of an internal combustion engine
DE102018219018A1 (en) * 2018-11-08 2020-05-14 Robert Bosch Gmbh Fluid injector with improved spray geometry
CN109372658B (en) * 2018-12-10 2020-10-13 大连理工大学 Gas injector of gas engine and working method thereof
JP2022065542A (en) * 2020-10-15 2022-04-27 株式会社 Acr Liquid injection nozzle
CN113187637B (en) * 2021-04-06 2022-09-23 大连理工大学 Composite hole nozzle with intersection structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211340A (en) * 1991-08-27 1993-05-18 Zexel Corporation Fuel injector
DE10109345A1 (en) * 2000-02-29 2001-08-30 Denso Corp Fuel injection nozzle head offers seating face for needle valve seat where downstream shutter stabilizes fuel flow section upstream of port at all needle lift values.
US20040104285A1 (en) * 2002-11-29 2004-06-03 Denso Corporation And Nippon Soken, Inc. Injection hole plate and fuel injection apparatus having the same
FR2872864A1 (en) * 2004-07-09 2006-01-13 Bosch Gmbh Robert Fuel injector for internal combustion engine, has channel formed in injector body and opened into ejection indent, where channel creates communication between ejection indent and blind indent

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000291513A (en) 1999-04-08 2000-10-17 Toyota Motor Corp Diesel engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211340A (en) * 1991-08-27 1993-05-18 Zexel Corporation Fuel injector
DE10109345A1 (en) * 2000-02-29 2001-08-30 Denso Corp Fuel injection nozzle head offers seating face for needle valve seat where downstream shutter stabilizes fuel flow section upstream of port at all needle lift values.
US20040104285A1 (en) * 2002-11-29 2004-06-03 Denso Corporation And Nippon Soken, Inc. Injection hole plate and fuel injection apparatus having the same
FR2872864A1 (en) * 2004-07-09 2006-01-13 Bosch Gmbh Robert Fuel injector for internal combustion engine, has channel formed in injector body and opened into ejection indent, where channel creates communication between ejection indent and blind indent

Also Published As

Publication number Publication date
CN101631950A (en) 2010-01-20
WO2008120086A2 (en) 2008-10-09
JP2008255834A (en) 2008-10-23

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