WO2009044810A1 - サプライポンプ - Google Patents

サプライポンプ Download PDF

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Publication number
WO2009044810A1
WO2009044810A1 PCT/JP2008/067933 JP2008067933W WO2009044810A1 WO 2009044810 A1 WO2009044810 A1 WO 2009044810A1 JP 2008067933 W JP2008067933 W JP 2008067933W WO 2009044810 A1 WO2009044810 A1 WO 2009044810A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
fuel
supply pump
suction port
barrel
Prior art date
Application number
PCT/JP2008/067933
Other languages
English (en)
French (fr)
Inventor
Nobu Kobayashi
Hajimu Imanaka
Hokuto Kusaka
Mitsuyoshi Kawarabayashi
Original Assignee
Yanmar Co., 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 Yanmar Co., Ltd. filed Critical Yanmar Co., Ltd.
Publication of WO2009044810A1 publication Critical patent/WO2009044810A1/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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/447—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0408—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0421—Cylinders

Landscapes

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

Abstract

エンジン高回転時での燃料の吐出量を適切に確保することが可能なサプライポンプを提供することを課題とする。プランジャバレル３と、前記プランジャバレル３内に往復動自在に設けられるプランジャ４と、前記プランジャバレル３とプランジャ４との間に形成される加圧室２５と、前記加圧室２５に燃料を吸入可能とする第一吸入ポート４１および第二吸入ポート４２と、前記加圧室２５から燃料を吐出可能とする燃料吐出通路３２と、を備えるサプライポンプ１において、前記プランジャバレル３に、前記プランジャ４が下死点に位置するとき、該プランジャ４の頂部と相対するように前記第二吸入ポート４２を設け、該プランジャ４の頂部の外周に頂端方向に段階的に細くなる段部４ａを備えるサプライポンプ１。
PCT/JP2008/067933 2007-10-05 2008-10-02 サプライポンプ WO2009044810A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007262419A JP2009091955A (ja) 2007-10-05 2007-10-05 サプライポンプ
JP2007-262419 2007-10-05

Publications (1)

Publication Number Publication Date
WO2009044810A1 true WO2009044810A1 (ja) 2009-04-09

Family

ID=40526234

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067933 WO2009044810A1 (ja) 2007-10-05 2008-10-02 サプライポンプ

Country Status (2)

Country Link
JP (1) JP2009091955A (ja)
WO (1) WO2009044810A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011088954A1 (de) * 2010-01-21 2011-07-28 Robert Bosch Gmbh Hochdruckpumpe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02115565A (ja) * 1988-10-26 1990-04-27 Yanmar Diesel Engine Co Ltd 燃料噴射装置
JP2004278373A (ja) * 2003-03-14 2004-10-07 Hitachi Ltd 高圧ポンプとその製法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0893595A (ja) * 1994-09-21 1996-04-09 Zexel Corp 燃料噴射ポンプ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02115565A (ja) * 1988-10-26 1990-04-27 Yanmar Diesel Engine Co Ltd 燃料噴射装置
JP2004278373A (ja) * 2003-03-14 2004-10-07 Hitachi Ltd 高圧ポンプとその製法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011088954A1 (de) * 2010-01-21 2011-07-28 Robert Bosch Gmbh Hochdruckpumpe
CN102713241A (zh) * 2010-01-21 2012-10-03 罗伯特·博世有限公司 高压泵

Also Published As

Publication number Publication date
JP2009091955A (ja) 2009-04-30

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