JPS584765U - Fuel injection pump for internal combustion engines - Google Patents
Fuel injection pump for internal combustion enginesInfo
- Publication number
- JPS584765U JPS584765U JP9923881U JP9923881U JPS584765U JP S584765 U JPS584765 U JP S584765U JP 9923881 U JP9923881 U JP 9923881U JP 9923881 U JP9923881 U JP 9923881U JP S584765 U JPS584765 U JP S584765U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- hole
- plunger
- fuel injection
- oil escape
- 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)
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案第１実施例に係る燃料噴射ポンプを使用
した燃料噴射系統図、第２図は本考案第２実施例に係る
燃料噴射ポンプを使用した燃料噴射系統図である。
１１・・・・・・プランジャ挿入孔、２
・・・・・・プランジャ、１６・・・・・・リード、１
７・・・・・・逃油室、１８・・・・・・逃油孔、１９
・・・・・・燃料吸入孔、３１・・・・・・燃料戻り通
路、Ｐ・・・・・・ポンプ本体、Ｓ・・・・・・逃油迂
回通路。FIG. 1 is a fuel injection system diagram using a fuel injection pump according to a first embodiment of the present invention, and FIG. 2 is a fuel injection system diagram using a fuel injection pump according to a second embodiment of the present invention.
11...Plunger insertion hole, 2
...Plunger, 16...Lead, 1
7...Oil escape chamber, 18...Oil escape hole, 19
...Fuel suction hole, 31...Fuel return passage, P...Pump body, S...Oil escape bypass passage.
Claims (1)
とによって燃料を圧送可能とする一方、前記プランジャ
２を前記プランリヤ挿入孔１に対して相対回動させて前
記プランジャ挿入孔１の内周面に形成した逃油孔１８と
前記プランジキ２に−形成したり−ド１６との連通タイ
ミングを変化させることによ−って燃料噴射量を制御す
るようにした燃料噴射ポンプであって、前記プランジャ
挿入孔１の内周面に前記逃油孔１８とは別に該プランジ
ャ挿入孔１内に燃料を吸入するための燃料吸入孔１９を
形成する一方、前記逃油孔１８の外側に比較的大容積を
有する逃油室１７を形成し、さらに前記逃油孔１８から
逃油室１７に排出される燃料を前記逃油室１７を前記燃
料吸入孔１９又は燃料戻り通路３１に連通せしめる逃油
迂回通路Ｓを介して前記燃料吸入孔１９側又は燃料戻り
通路３１側に還流せしめるようにじたことを特徴とする
燃料噴射ポンプ。By reciprocating the plunger 2 within the plunger insertion hole 1, fuel can be pumped, while the plunger 2 is rotated relative to the plunger insertion hole 1 to form an inner peripheral surface of the plunger insertion hole 1. The fuel injection pump is configured to control the amount of fuel injection by forming an oil escape hole 18 in the plunger 2 and changing the communication timing with the plunger hole 16. A fuel suction hole 19 for sucking fuel into the plunger insertion hole 1 is formed on the inner peripheral surface of the plunger insertion hole 1 in addition to the oil escape hole 18, and a relatively large volume is formed outside the oil escape hole 18. An oil escape bypass passage S is provided which forms an oil escape chamber 17 and communicates the fuel discharged from the oil escape hole 18 into the oil escape chamber 17 with the fuel suction hole 19 or the fuel return passage 31. A fuel injection pump characterized in that the fuel is refluxed to the fuel suction hole 19 side or the fuel return passage 31 side through the fuel injection pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9923881U JPS584765U (en) | 1981-07-01 | 1981-07-01 | Fuel injection pump for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9923881U JPS584765U (en) | 1981-07-01 | 1981-07-01 | Fuel injection pump for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS584765U true JPS584765U (en) | 1983-01-12 |
Family
ID=29893979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9923881U Pending JPS584765U (en) | 1981-07-01 | 1981-07-01 | Fuel injection pump for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS584765U (en) |
-
1981
- 1981-07-01 JP JP9923881U patent/JPS584765U/en active Pending
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