JPS59194564U - Fuel injection pump injection rate control device - Google Patents
Fuel injection pump injection rate control deviceInfo
- Publication number
- JPS59194564U JPS59194564U JP8894683U JP8894683U JPS59194564U JP S59194564 U JPS59194564 U JP S59194564U JP 8894683 U JP8894683 U JP 8894683U JP 8894683 U JP8894683 U JP 8894683U JP S59194564 U JPS59194564 U JP S59194564U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- fuel
- pump
- passage
- control sleeve
- 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
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (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
第１図は従来装置の縦断面図、第２図は本考案の実施例
の要部拡大断面図、第３図は第２図のＩ−Ｉ線断面図、
第４図は燃料噴射率特性を示す説明図である。 ゛
５・・・ポンプ室、６・・・プランジャポンプ、７・・
・ポンププランジャ、８・・・カムディスク、１０・・
田−ラリング、１２・・・吸入ポート、１３・・・分配
ポート、１５・・・カットオフポート、１６・・・コン
トロールスリーブ入４０・・・高圧燃料通路、４１・・
・燃料リーク通路、４３・・・制御溝、４４・・・傾斜
面、４５・・・駆動手段、４５ａ・・・ソレノイドアク
チュエータ、５−２・・・制御回路、５３・・・負荷セ
ンサ、５４・・・回転数センサ、５６・・・オリフィス
。FIG. 1 is a vertical sectional view of a conventional device, FIG. 2 is an enlarged sectional view of the main part of an embodiment of the present invention, and FIG. 3 is a sectional view taken along the line I-I in FIG. 2.
FIG. 4 is an explanatory diagram showing fuel injection rate characteristics.゛5...Pump chamber, 6...Plunger pump, 7...
・Pump plunger, 8...Cam disc, 10...
Field ring, 12... Suction port, 13... Distribution port, 15... Cut-off port, 16... Control sleeve included 40... High pressure fuel passage, 41...
- Fuel leak passage, 43... Control groove, 44... Inclined surface, 45... Drive means, 45a... Solenoid actuator, 5-2... Control circuit, 53... Load sensor, 54 ... Rotation speed sensor, 56... Orifice.
Claims (1)
ジャを備え、このプランジャの作動に伴い低圧側のポン
プ室から吸入した燃料をプランジャ周囲の分配ポートへ
順次圧送する高圧通路をプランジャに形成する一方、゛
高圧通路を前記ポンプ室に連通ずるカットオフポートを
設け、このカットオフボートをアクセル開度に対応して
開放するコントロールスリーブをプランジャに摺動自由
に挿入した分配型燃料噴射ポンプにおいて、前記高圧燃
料通路をポンプ室に連通ずる燃料リーク通路をプランジ
ャに形成し、この燃料リーク通路をポンプ吐出行程の途
中から閉じる制御溝をコントロールスリーブに設け、こ
のコントロールスリーブを機関運転状態に応じて回転さ
せる駆動手段を設け、コントロールスリーブの回転位置
に応じて前記燃料リーク通路の閉時期を可変的に制御す
るようにしたことを特徴とする燃料噴射ポンプの噴射率
制御装置。It is equipped with a pump plunger that rotates and reciprocates in synchronization with the engine rotation, and a high-pressure passage is formed in the plunger for sequentially pumping fuel sucked in from a low-pressure side pump chamber as the plunger operates, to a distribution port around the plunger,゛A distribution type fuel injection pump in which a cut-off port is provided that communicates the high-pressure passage with the pump chamber, and a control sleeve is slidably inserted into the plunger to open the cut-off port in accordance with the accelerator opening. A drive system in which a fuel leak passage that communicates the fuel passage with the pump chamber is formed in the plunger, a control groove is provided in the control sleeve to close this fuel leak passage from the middle of the pump discharge stroke, and the control sleeve is rotated according to the engine operating state. An injection rate control device for a fuel injection pump, comprising means for variably controlling the closing timing of the fuel leak passage according to the rotational position of a control sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8894683U JPS59194564U (en) | 1983-06-10 | 1983-06-10 | Fuel injection pump injection rate control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8894683U JPS59194564U (en) | 1983-06-10 | 1983-06-10 | Fuel injection pump injection rate control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59194564U true JPS59194564U (en) | 1984-12-24 |
Family
ID=30218841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8894683U Pending JPS59194564U (en) | 1983-06-10 | 1983-06-10 | Fuel injection pump injection rate control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59194564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270971A (en) * | 1988-09-05 | 1990-03-09 | Nissan Motor Co Ltd | Fuel injection pump for diesel engine |
| WO2021059781A1 (en) * | 2019-09-25 | 2021-04-01 | 大王製紙株式会社 | Packaging bag |
-
1983
- 1983-06-10 JP JP8894683U patent/JPS59194564U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270971A (en) * | 1988-09-05 | 1990-03-09 | Nissan Motor Co Ltd | Fuel injection pump for diesel engine |
| WO2021059781A1 (en) * | 2019-09-25 | 2021-04-01 | 大王製紙株式会社 | Packaging bag |
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