JPS6375563U - - Google Patents
Info
- Publication number
- JPS6375563U JPS6375563U JP17023386U JP17023386U JPS6375563U JP S6375563 U JPS6375563 U JP S6375563U JP 17023386 U JP17023386 U JP 17023386U JP 17023386 U JP17023386 U JP 17023386U JP S6375563 U JPS6375563 U JP S6375563U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- nozzle
- needle valve
- plunger
- 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 5
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は本考案に使用したプランジヤと針弁の作動状
態を従来のものと比較して示す特性図、第３図は
本考案の他の実施例を示す断面図である。
１……ノズルホルダ、４……ノズルボデイ、９
……針弁、２２……プランジヤ、３３……第１ノ
ズルスプリング、３４……第２ノズルスプリング
。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a characteristic diagram showing the operating state of the plunger and needle valve used in the present invention in comparison with a conventional one, and FIG. 3 is a sectional view showing another embodiment of the present invention. 1... Nozzle holder, 4... Nozzle body, 9
... needle valve, 22 ... plunger, 33 ... first nozzle spring, 34 ... second nozzle spring.
Claims (1)
能に収容したノズルホルダと、圧送燃料で変位す
る針弁を内部に摺動可能に収容したノズルボデイ
とを備え、これらプランジヤと針弁との間にノズ
ルスプリングを介挿するとともに、プランジヤの
開弁圧を針弁の開弁圧よりも高圧に設定した燃料
噴射弁において、前記プランジヤと針弁との間に
常時これらを閉弁方向へ付勢する通常セツト力以
下に設定された第１ノズルスプリングと、針弁の
所定リフト後上記第１ノズルスプリングと共に針
弁を閉弁方向へ付勢し、かつ通常セツト力以上に
設定された第２ノズルスプリングを介挿したこと
を特徴とする燃料噴射弁。 A nozzle holder is provided with a nozzle holder that slidably accommodates a plunger that is displaced by pressurized fuel, and a nozzle body that slidably accommodates a needle valve that is displaced by pressurized fuel. In a fuel injection valve in which a spring is inserted and the valve opening pressure of the plunger is set higher than the valve opening pressure of the needle valve, there is a conventional fuel injection valve in which the plunger and the needle valve are constantly biased in the valve closing direction. The first nozzle spring is set to a setting force or less, and the second nozzle spring, which together with the first nozzle spring urges the needle valve in the valve closing direction after a predetermined lift of the needle valve, is set to a normal setting force or more. A fuel injection valve characterized by being inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17023386U JPS6375563U (en) | 1986-11-07 | 1986-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17023386U JPS6375563U (en) | 1986-11-07 | 1986-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6375563U true JPS6375563U (en) | 1988-05-19 |
Family
ID=31104772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17023386U Pending JPS6375563U (en) | 1986-11-07 | 1986-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6375563U (en) |
-
1986
- 1986-11-07 JP JP17023386U patent/JPS6375563U/ja active Pending