JPS6295173U - - Google Patents

Info

Publication number
JPS6295173U
JPS6295173U JP1985187504U JP18750485U JPS6295173U JP S6295173 U JPS6295173 U JP S6295173U JP 1985187504 U JP1985187504 U JP 1985187504U JP 18750485 U JP18750485 U JP 18750485U JP S6295173 U JPS6295173 U JP S6295173U
Authority
JP
Japan
Prior art keywords
plunger
control sleeve
suction hole
fuel
injection pump
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP1985187504U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1985187504U priority Critical patent/JPS6295173U/ja
Priority to KR2019860018166U priority patent/KR920000431Y1/en
Publication of JPS6295173U publication Critical patent/JPS6295173U/ja
Pending legal-status Critical Current

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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/243—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movement of cylinders relative to their pistons
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/022—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type having an accumulator storing pressurised fuel during pumping stroke of the piston for subsequent delivery to the injector

Landscapes

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

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す断面図、第
２図は他の実施例を示す断面図である。 １…ポンプ本体、３…プランジヤバレル、１２
…プランジヤ、１３…高圧室、２２…制御スリー
ブ、２３…燃料溜り室、３２…主吸入孔、３４…
補助吸入孔。 FIG. 1 is a sectional view showing one embodiment of this invention, and FIG. 2 is a sectional view showing another embodiment. 1...Pump body, 3...Plunger barrel, 12
...Plunger, 13...High pressure chamber, 22...Control sleeve, 23...Fuel reservoir chamber, 32...Main suction hole, 34...
Auxiliary suction hole.

Claims (1)

【実用新案登録請求の範囲】 １ ポンプ本体にプランジヤバレルを固定し、こ
のプランジヤバレルにプランジヤを摺動自在に挿
入し、このプランジヤに制御スリーブを摺動自在
に外嵌し、前記プランジヤバレルとプランジヤに
囲まれて高圧室が形成され、前記制御スリーブが
燃料溜り室に配置され、この燃料溜り室から前記
高圧室へ燃料を吸入するための主吸入孔から前記
プランジヤに形成され、前記プランジヤが下死点
から上昇して前記主吸入孔が前記制御スリーブに
より閉鎖されるまでの距離をプリストロークとし
、このプリストロークを前記制御スリーブの上下
動に応じて変えるようにした燃料噴射ポンプにお
いて、前記高圧室と前記燃料溜り室とを吸入時に
連通する補助吸入孔を、前記プランジヤの下死点
から該補助吸入孔を閉鎖するまでの距離が最小プ
リストローク以下となるように設けたことを特徴
とする燃料噴射ポンプ。 ２ 補助吸入孔はプランジヤバレルに形成された
ことを特徴とする実用新案登録請求の範囲第１項
記載の燃料噴射ポンプ。 ３ 補助吸入項はプランジヤに形成されたことを
特徴とする実用新案登録請求の範囲第１項記載の
損料噴射ポンプ。[Claims for Utility Model Registration] 1. A plunger barrel is fixed to the pump body, a plunger is slidably inserted into the plunger barrel, a control sleeve is slidably fitted onto the plunger, and the plunger barrel and the plunger a high pressure chamber is formed surrounded by the control sleeve, the control sleeve is disposed in a fuel reservoir chamber, a main suction hole is formed in the plunger for sucking fuel from the fuel reservoir chamber into the high pressure chamber, and the plunger is located at a lower part of the plunger. In the fuel injection pump, the prestroke is defined as the distance from the dead center until the main suction hole is closed by the control sleeve, and the prestroke is changed according to the vertical movement of the control sleeve. An auxiliary suction hole that communicates between the fuel storage chamber and the fuel storage chamber during suction is provided such that a distance from the bottom dead center of the plunger to the time when the auxiliary suction hole is closed is equal to or less than a minimum prestroke. fuel injection pump. 2. The fuel injection pump according to claim 1, wherein the auxiliary suction hole is formed in the plunger barrel. 3. The injection pump according to claim 1 of the utility model registration, characterized in that the auxiliary suction element is formed in the plunger.
JP1985187504U 1985-12-05 1985-12-05 Pending JPS6295173U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985187504U JPS6295173U (en) 1985-12-05 1985-12-05
KR2019860018166U KR920000431Y1 (en) 1985-12-05 1986-11-21 Fuel injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985187504U JPS6295173U (en) 1985-12-05 1985-12-05

Publications (1)

Publication Number Publication Date
JPS6295173U true JPS6295173U (en) 1987-06-17

Family

ID=16207218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985187504U Pending JPS6295173U (en) 1985-12-05 1985-12-05

Country Status (2)

Country Link
JP (1) JPS6295173U (en)
KR (1) KR920000431Y1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60128939A (en) * 1983-12-17 1985-07-10 Diesel Kiki Co Ltd Fuel injection controller
JPS61157754A (en) * 1984-12-24 1986-07-17 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 Fuel injection pump for internal combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60128939A (en) * 1983-12-17 1985-07-10 Diesel Kiki Co Ltd Fuel injection controller
JPS61157754A (en) * 1984-12-24 1986-07-17 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 Fuel injection pump for internal combustion engine

Also Published As

Publication number Publication date
KR870010388U (en) 1987-07-11
KR920000431Y1 (en) 1992-01-15

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