JPS58178465U - fuel injection pump - Google Patents
fuel injection pumpInfo
- Publication number
- JPS58178465U JPS58178465U JP7746982U JP7746982U JPS58178465U JP S58178465 U JPS58178465 U JP S58178465U JP 7746982 U JP7746982 U JP 7746982U JP 7746982 U JP7746982 U JP 7746982U JP S58178465 U JPS58178465 U JP S58178465U
- Authority
- JP
- Japan
- Prior art keywords
- control sleeve
- plunger
- pump
- housing wall
- fuel injection
- 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
- High-Pressure Fuel Injection Pump Control (AREA)
- 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
第１図はフィードポンプ部分および噴射時期制御装置の
タイマピストン部分を９０度展開して示す従来例の縦断
面図、第２図ないし第４図は本考案の実施例を示し、ｉ
゛２図は要部断面図、第３図は同拡大図、第４図はエン
ジン始動時の燃料過給、特性を示すグラフである。
１・・・ポンプハウジング、１ａ・・・シリンダ、２・
・・シリンダ、２・・・ポンプ内空間、５・・・プラン
ジャ、１０・・・燃料圧送通路、１０ａ・・・カットオ
フポート、１２・・・コントロールスリーブ、２５・・
・環状空間コ２６・・・シール部材、２８・・・駆動装
置。FIG. 1 is a vertical sectional view of a conventional example showing the feed pump part and the timer piston part of the injection timing control device expanded at 90 degrees, and FIGS. 2 to 4 show embodiments of the present invention.
2 is a sectional view of the main part, FIG. 3 is an enlarged view of the same, and FIG. 4 is a graph showing fuel supercharging and characteristics at engine startup. 1... Pump housing, 1a... Cylinder, 2...
... Cylinder, 2... Pump interior space, 5... Plunger, 10... Fuel pressure passage, 10a... Cut-off port, 12... Control sleeve, 25...
- Annular space 26... Seal member, 28... Drive device.
Claims (1)
され、他端部がポンプ内空間に延びるプランジャと、該
プランジャ内に形成され、一端が１上記シリンダ内空間
に開口し、他端がシランジャ外周面に設けたカットオフ
ポートを介して上記ポンプ内空間に開口する燃料圧送通
路と、上記プランジャｉこ嵌装され、上記カットオフポ
ートを開閉してプランジャの有効ストロークを増減制御
するコントロールスリーブと、該コントロールスリーブ
が上言μシリンダを形成するハウジング壁面に当接した
状態において該コントロールスリーブの端面とハウジン
グ壁面とによりプランジャを囲むように形成される環状
空間と、該環状空間より外方のコントロールスリーブ−
とハウジング壁面との当接面に配設されたシール部材と
、エンジン始動時コントロールスリーブ番上記ハウジン
グ壁面に圧°接させるように駆動する駆動装置とを備え
てなる −燃料噴射ポンプ。a plunger having one end fitted into a cylinder formed in the pump housing and the other end extending into the pump internal space; a fuel pressure passage that opens into the internal space of the pump through a cut-off port provided on the surface; a control sleeve that is fitted over the plunger and opens and closes the cut-off port to control increase/decrease of the effective stroke of the plunger; an annular space formed so as to surround the plunger by the end face of the control sleeve and the housing wall when the control sleeve is in contact with the housing wall forming the aforementioned μ cylinder; and a control sleeve outside the annular space. −
- A fuel injection pump, comprising: a sealing member disposed on a contact surface between the control sleeve and the housing wall surface; and a drive device that drives the control sleeve so as to bring it into pressure contact with the housing wall surface when the engine is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7746982U JPS58178465U (en) | 1982-05-25 | 1982-05-25 | fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7746982U JPS58178465U (en) | 1982-05-25 | 1982-05-25 | fuel injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58178465U true JPS58178465U (en) | 1983-11-29 |
Family
ID=30086726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7746982U Pending JPS58178465U (en) | 1982-05-25 | 1982-05-25 | fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58178465U (en) |
-
1982
- 1982-05-25 JP JP7746982U patent/JPS58178465U/en active Pending
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