JPS61123872U - - Google Patents
Info
- Publication number
- JPS61123872U JPS61123872U JP678685U JP678685U JPS61123872U JP S61123872 U JPS61123872 U JP S61123872U JP 678685 U JP678685 U JP 678685U JP 678685 U JP678685 U JP 678685U JP S61123872 U JPS61123872 U JP S61123872U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- check valve
- fuel
- delivery
- return spring
- 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
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の縦断面図、第２図は燃料噴射
ノズル室圧と燃料噴射ポンプのカムの回転角との
関係を示す線図である。
１ａ……燃料噴射ポンプの燃料吐出口、４……
送出弁本体、４ｆ……弁座、５……第１の戻しば
ね、８……逆止弁、１１……ストツパ、１２……
第２の戻しばね。
FIG. 1 is a longitudinal sectional view of the present invention, and FIG. 2 is a diagram showing the relationship between the fuel injection nozzle chamber pressure and the rotation angle of the cam of the fuel injection pump. 1a...Fuel discharge port of fuel injection pump, 4...
Sending valve body, 4f... Valve seat, 5... First return spring, 8... Check valve, 11... Stopper, 12...
Second return spring.
Claims (1)
の燃料入口との間の燃料導通路に介装された送出
弁本体と逆止弁とを具備し、該送出弁本体は燃料
の圧送方向の圧力により第１の戻しばねのばね力
に抗して開弁され、前記逆止弁は燃料の反圧送方
向の圧力により第２の戻しばねのばね力に抗して
開弁されるように構成されたデリバリバルブにお
いて、前記逆止弁の開弁時における該逆止弁と弁
座との間の間隙を一定にして該間隙部に絞り効果
をもたせるべく前記逆止弁の開弁リフト位置を規
制するストツパを設けたことを特徴とするデリバ
リバルブ。 A delivery valve body and a check valve are provided in a fuel passage between a fuel discharge port of a fuel injection pump and a fuel inlet of a fuel injection nozzle. The valve is opened against the spring force of the first return spring, and the check valve is configured to be opened against the spring force of the second return spring due to the pressure in the counter-pressure feeding direction of the fuel. In the delivery valve, the valve opening lift position of the check valve is regulated in order to maintain a constant gap between the check valve and the valve seat when the check valve is opened, and to create a throttling effect in the gap. A delivery valve characterized by having a stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP678685U JPS61123872U (en) | 1985-01-23 | 1985-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP678685U JPS61123872U (en) | 1985-01-23 | 1985-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61123872U true JPS61123872U (en) | 1986-08-04 |
Family
ID=30484550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP678685U Pending JPS61123872U (en) | 1985-01-23 | 1985-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61123872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243462U (en) * | 1988-09-19 | 1990-03-26 | ||
| JPH0594587U (en) * | 1992-05-22 | 1993-12-24 | 自動車機器株式会社 | Check valve |
-
1985
- 1985-01-23 JP JP678685U patent/JPS61123872U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243462U (en) * | 1988-09-19 | 1990-03-26 | ||
| JPH0594587U (en) * | 1992-05-22 | 1993-12-24 | 自動車機器株式会社 | Check valve |