JPS6137462U - fuel injection pump - Google Patents

fuel injection pump

Info

Publication number
JPS6137462U
JPS6137462U JP12141184U JP12141184U JPS6137462U JP S6137462 U JPS6137462 U JP S6137462U JP 12141184 U JP12141184 U JP 12141184U JP 12141184 U JP12141184 U JP 12141184U JP S6137462 U JPS6137462 U JP S6137462U
Authority
JP
Japan
Prior art keywords
plunger
fuel injection
barrel
discharge hole
metering
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
JP12141184U
Other languages
Japanese (ja)
Inventor
徹 石橋
茂夫 平
Original Assignee
株式会社ボッシュオートモーティブ システム
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 株式会社ボッシュオートモーティブ システム filed Critical 株式会社ボッシュオートモーティブ システム
Priority to JP12141184U priority Critical patent/JPS6137462U/en
Publication of JPS6137462U publication Critical patent/JPS6137462U/en
Pending legal-status Critical Current

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  • Fuel-Injection Apparatus (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

図面は本考案の一実施例を示し、第１図は本考案の列型
燃料噴射ポンプの要部縦断面甲、第２図は同プランジャ
の要部拡大図、第３図はカム回転角とカムリフトとの関
係を示す図、第４図はカム回転角と噴射率の関係を示す
図である。 １・・・燃料噴射ポンプ、３・・・油溜室、１５・・・
プランジャバレル、１６・・・プランジャ、１８・・・
燃料吸・排孔、１９・・・小孔、２０・・・調量切欠、
２１・・・排出些The drawings show an embodiment of the present invention; Fig. 1 shows a longitudinal section of the main part of the in-line fuel injection pump of the invention, Fig. 2 is an enlarged view of the main part of the plunger, and Fig. 3 shows the cam rotation angle. A diagram showing the relationship with the cam lift, and FIG. 4 is a diagram showing the relationship between the cam rotation angle and the injection rate. 1...Fuel injection pump, 3...Oil reservoir chamber, 15...
Plunger barrel, 16... Plunger, 18...
Fuel intake/discharge hole, 19...small hole, 20...metering notch,
21... Emission trivial

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油溜室に連通する燃料吸排孔が穿設されたプランジャバ
レル内に内燃機関の回転に連動して摺動自在に嵌装され
且つ外周面所定位置に調量切欠を有するプランジャが加
圧方向に摺動してその先端が前記プランジャバレルの吸
排孔を閉塞した時燃料噴射を開始し、更に前記プランジ
ャが加圧方向に摺動して該プランジャの調量切欠が前記
プランジャバレルの吸排孔と連通した時当該燃ｔ４準射
を終了し得る如く構成した燃料噴射ボン力トおいて、前
記プランジャバレルに前記油溜室と連通ずる小孔を穿鰻
すると共に、前記内燃機関の低速・低負荷運転時におい
てのみ前記小孔と連通ずる排出路を前記プランジャに、
該プランジャの調量切欠に連通させて設けたことを特徴
とする燃料噴射ポンプ。A plunger is slidably fitted in a plunger barrel having a fuel intake/discharge hole communicating with the oil sump chamber in conjunction with the rotation of the internal combustion engine, and has a metering cutout at a predetermined position on its outer circumferential surface in a pressurizing direction. When the tip of the plunger slides and closes the suction/discharge hole of the plunger barrel, fuel injection is started, and the plunger further slides in the pressurizing direction so that the metering notch of the plunger communicates with the suction/discharge hole of the plunger barrel. A small hole communicating with the oil reservoir chamber is drilled in the plunger barrel in a fuel injection tank configured to terminate the fuel injection when the fuel injection is completed, and the internal combustion engine is operated at low speed and low load. a discharge channel in the plunger that communicates with the small hole only when
A fuel injection pump characterized in that the plunger is provided in communication with a metering notch of the plunger.
JP12141184U 1984-08-09 1984-08-09 fuel injection pump Pending JPS6137462U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12141184U JPS6137462U (en) 1984-08-09 1984-08-09 fuel injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12141184U JPS6137462U (en) 1984-08-09 1984-08-09 fuel injection pump

Publications (1)

Publication Number Publication Date
JPS6137462U true JPS6137462U (en) 1986-03-08

Family

ID=30680197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12141184U Pending JPS6137462U (en) 1984-08-09 1984-08-09 fuel injection pump

Country Status (1)

Country Link
JP (1) JPS6137462U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63219869A (en) * 1987-03-09 1988-09-13 Yanmar Diesel Engine Co Ltd Fuel injection pump
JPS63302171A (en) * 1987-05-30 1988-12-09 Yanmar Diesel Engine Co Ltd Fuel injection pump
JPH0230973A (en) * 1988-07-18 1990-02-01 Kubota Ltd Vent hole type fuel injection pump for diesel engine
JPH0230972A (en) * 1988-07-18 1990-02-01 Kubota Ltd Vent hole type fuel injection pump for diesel engine
JPH0237167A (en) * 1988-07-26 1990-02-07 Kubota Ltd Spill port type fuel injection pump for diesel engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933293A (en) * 1972-07-27 1974-03-27
JPS55161958A (en) * 1979-05-28 1980-12-16 Mach Terumitsuku Soc Et 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
JPS4933293A (en) * 1972-07-27 1974-03-27
JPS55161958A (en) * 1979-05-28 1980-12-16 Mach Terumitsuku Soc Et Fuel injection pump for internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63219869A (en) * 1987-03-09 1988-09-13 Yanmar Diesel Engine Co Ltd Fuel injection pump
JPS63302171A (en) * 1987-05-30 1988-12-09 Yanmar Diesel Engine Co Ltd Fuel injection pump
JPH0230973A (en) * 1988-07-18 1990-02-01 Kubota Ltd Vent hole type fuel injection pump for diesel engine
JPH0230972A (en) * 1988-07-18 1990-02-01 Kubota Ltd Vent hole type fuel injection pump for diesel engine
JPH0237167A (en) * 1988-07-26 1990-02-07 Kubota Ltd Spill port type fuel injection pump for diesel engine

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