JPS61105758U - - Google Patents
Info
- Publication number
- JPS61105758U JPS61105758U JP19136384U JP19136384U JPS61105758U JP S61105758 U JPS61105758 U JP S61105758U JP 19136384 U JP19136384 U JP 19136384U JP 19136384 U JP19136384 U JP 19136384U JP S61105758 U JPS61105758 U JP S61105758U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- nozzle holder
- fuel
- valve
- needle valve
- 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
- 238000002347 injection Methods 0.000 claims 5
- 239000007924 injection Substances 0.000 claims 5
- 239000000446 fuel Substances 0.000 claims 4
- 239000000295 fuel oil Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 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縦断面図、第
２図は同要部断面図、第３図は針弁にかかる圧力
と針弁リフトとの関係を示す線図である。
１……ノズルホルダ、１ａ……流入口、３……
ノズルボデイ、６……針弁、７……噴孔、１５…
…セントラルプランジヤ、１９……ダンパ室。
FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part thereof, and FIG. 3 is a diagram showing the relationship between the pressure applied to the needle valve and the needle valve lift. 1... Nozzle holder, 1a... Inflow port, 3...
Nozzle body, 6...needle valve, 7...nozzle hole, 15...
...Central plunger, 19...damper room.
Claims (1)
ズルホルダと、該ノズルホルダに支持され且つ下
端側に前記流入口に連通する噴孔を有するノズル
ボデイと、該ノズルボデイ内に摺動可能に装着さ
れ、ノズルばねにより前記噴孔を閉じる方向に付
勢された針弁と、該針弁の上端にこれと一体に上
昇し得る如く前記ノズルホルダに摺動自在に装着
され且つ噴射管内圧力を受けて前記針弁に閉じる
方向の力を加えるセントラルプランジヤとを具備
し、該セントラルプランジヤと前記ノズルホルダ
との摺動部分の途中に燃料油が流出入するダンパ
室を設け、燃料噴射終了時前記ダンパ室内の燃料
油のダンパ効果にて前記針弁より遅れて前記セン
トラルプランジヤが下降するように構成したこと
を特徴とする燃料噴射弁。 a nozzle holder having an inlet connected to a fuel injection pump; a nozzle body supported by the nozzle holder and having a nozzle hole communicating with the inlet at a lower end side; a nozzle mounted slidably within the nozzle body; A needle valve is biased by a spring in a direction to close the injection hole, and the needle is slidably attached to the nozzle holder so as to be able to rise together with the upper end of the needle valve, and receives the pressure inside the injection pipe. a central plunger that applies a force in the closing direction to the valve; a damper chamber through which fuel oil flows in and out is provided in the middle of the sliding portion between the central plunger and the nozzle holder; the fuel in the damper chamber is disposed at the end of fuel injection; A fuel injection valve characterized in that the central plunger is configured to descend later than the needle valve due to the damper effect of oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19136384U JPS61105758U (en) | 1984-12-19 | 1984-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19136384U JPS61105758U (en) | 1984-12-19 | 1984-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61105758U true JPS61105758U (en) | 1986-07-04 |
Family
ID=30748802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19136384U Pending JPS61105758U (en) | 1984-12-19 | 1984-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61105758U (en) |
-
1984
- 1984-12-19 JP JP19136384U patent/JPS61105758U/ja active Pending