JPH0395069U - - Google Patents
Info
- Publication number
- JPH0395069U JPH0395069U JP425890U JP425890U JPH0395069U JP H0395069 U JPH0395069 U JP H0395069U JP 425890 U JP425890 U JP 425890U JP 425890 U JP425890 U JP 425890U JP H0395069 U JPH0395069 U JP H0395069U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- stage
- chamber
- valve opening
- opening pressure
- 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 description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案実施例による燃料噴射装置の主
要部の構成を示す模式図、第２図は第１図に示し
た主要部の特性を説明するための線図、第３図は
従来の燃料噴射装置の全体構成を示す断面図、第
４図は第３図に示した燃料噴射装置の作用を説明
するための線図である。
１……燃料噴射装置、１Ａ……ノズル本体、１
Ｂ……開弁圧室、１Ｃ……プランジヤ室、２……
燃料通路、２Ａ……燃料通路の一方、２Ｂ……燃
料通路の他方、３……針弁、４……第１のリター
ンスプリング、６……第２のリターンスプリング
、７……パイロツト噴射用プランジヤ、８……時
期調整用スプリング、９……加圧調整用ナツト、
１０……スプリング受け。
FIG. 1 is a schematic diagram showing the configuration of the main parts of the fuel injection device according to the embodiment of the present invention, FIG. 2 is a diagram for explaining the characteristics of the main parts shown in FIG. 1, and FIG. FIG. 4 is a cross-sectional view showing the overall configuration of the fuel injection device, and FIG. 4 is a diagram for explaining the operation of the fuel injection device shown in FIG. 3. 1...Fuel injection device, 1A...Nozzle body, 1
B... Valve opening pressure chamber, 1C... Plunger chamber, 2...
Fuel passage, 2A...one side of the fuel passage, 2B...the other side of the fuel passage, 3...needle valve, 4...first return spring, 6...second return spring, 7...pilot injection plunger , 8... Spring for timing adjustment, 9... Nut for pressure adjustment,
10...Spring receiver.
Claims (1)
を途中で分岐させ、その一方を第１段および第２
段のリターンスプリングにより開弁圧を設定され
ている針弁の開弁圧室に、そして他方を噴射ノズ
ル内に形成された収容部で摺動可能とされたパイ
ロツト噴射用プランジヤを挿嵌しているプランジ
ヤ室に接続し、 上記プランジヤ室には、上記パイロツト噴射用
プランジヤに当接してそのプランジヤの開弁圧を
上記第１のリターンスプリングにより設定されて
いるパイロツト噴射圧以上に設定する手段を備え
たことを特徴とする燃料噴射装置。[Claims for Utility Model Registration] The path for the fuel fed under pressure from the fuel injection pump is branched in the middle, and one side is connected to the first stage and the second stage.
A pilot injection plunger is inserted into the valve opening pressure chamber of the needle valve whose valve opening pressure is set by a stage return spring, and the other side is slidable in a housing formed in the injection nozzle. The plunger chamber is connected to a plunger chamber, and the plunger chamber is provided with means for contacting the pilot injection plunger and setting the valve opening pressure of the plunger to a value higher than the pilot injection pressure set by the first return spring. A fuel injection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP425890U JPH0395069U (en) | 1990-01-19 | 1990-01-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP425890U JPH0395069U (en) | 1990-01-19 | 1990-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0395069U true JPH0395069U (en) | 1991-09-27 |
Family
ID=31508011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP425890U Pending JPH0395069U (en) | 1990-01-19 | 1990-01-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0395069U (en) |
-
1990
- 1990-01-19 JP JP425890U patent/JPH0395069U/ja active Pending
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