JPS62152071U - - Google Patents
Info
- Publication number
- JPS62152071U JPS62152071U JP3976586U JP3976586U JPS62152071U JP S62152071 U JPS62152071 U JP S62152071U JP 3976586 U JP3976586 U JP 3976586U JP 3976586 U JP3976586 U JP 3976586U JP S62152071 U JPS62152071 U JP S62152071U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- oil
- high pressure
- fuel oil
- pressure fuel
- 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
- 239000000295 fuel oil Substances 0.000 claims 2
- 239000003921 oil Substances 0.000 claims 2
- 238000009825 accumulation Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案による１実施例のユニツトイン
ジエクタを示す断面図、第２図ａ，ｂ，ｃはそれ
ぞれスプールの作動状態を示す説明図、第３図は
従来のユニツトインジエクタを示す断面図である
。
１……油圧源からの油路、２，２′……排油路
、５……スプール、１２……針弁、１４……針弁
室、１５……噴孔。
Fig. 1 is a cross-sectional view showing a unit injector according to an embodiment of the present invention, Fig. 2 a, b, and c are explanatory views showing the operating states of the spool, respectively, and Fig. 3 is a cross-sectional view showing a conventional unit injector. It is a diagram. 1... Oil path from the hydraulic source, 2, 2'... Oil drain path, 5... Spool, 12... Needle valve, 14... Needle valve chamber, 15... Nozzle hole.
Claims (1)
ル弁を駆動して針弁の背後の油圧を急速に低下さ
せて上記針弁室内の高圧燃料油を噴孔から噴射さ
せる蓄圧形電子制御ユニツトインジエクタにおい
て、上記電磁スプール弁のスプールの通路壁に予
備噴射をさせるための小径の排油路を設けたこと
を特徴とするユニツトインジエクタ。 A pressure accumulation type electronic control unit that accumulates high pressure fuel oil in the needle valve chamber and drives an electromagnetic spool valve to rapidly reduce the oil pressure behind the needle valve and inject the high pressure fuel oil in the needle valve chamber from the nozzle hole. A unit injector characterized in that a small-diameter oil drainage passage for preliminary injection is provided in the passage wall of the spool of the electromagnetic spool valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3976586U JPS62152071U (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3976586U JPS62152071U (en) | 1986-03-20 | 1986-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62152071U true JPS62152071U (en) | 1987-09-26 |
Family
ID=30853239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3976586U Pending JPS62152071U (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62152071U (en) |
-
1986
- 1986-03-20 JP JP3976586U patent/JPS62152071U/ja active Pending
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