JPS6279961U - - Google Patents
Info
- Publication number
- JPS6279961U JPS6279961U JP17226785U JP17226785U JPS6279961U JP S6279961 U JPS6279961 U JP S6279961U JP 17226785 U JP17226785 U JP 17226785U JP 17226785 U JP17226785 U JP 17226785U JP S6279961 U JPS6279961 U JP S6279961U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- tip
- valve body
- nozzle
- diameter portion
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の一実施例の燃料噴射ノズル
先端部の断面図、第２図は第１図の拡大された
矢視図、第３図は他の実施例のスロツトルピスト
ン付近の断面図、第４図は従来の燃料噴射ノズル
先端部の断面図、第５図および第６図は更に他の
従来の燃料噴射ノズル先端部の燃料噴射初期およ
び同後期の断面図である。
１…ノズルボデイ、３…ニードル弁（弁体）、
１１…燃料噴射孔、１９…スロツトルピン（先端
細径部）、２３…螺旋状の溝。
Fig. 1 is a cross-sectional view of the tip of a fuel injection nozzle according to one embodiment of this invention, Fig. 2 is an enlarged view taken in the direction of the arrows in Fig. 1, and Fig. 3 is a cross-sectional view near the throttle piston of another embodiment. 4 are sectional views of the tip of a conventional fuel injection nozzle, and FIGS. 5 and 6 are sectional views of the tip of another conventional fuel injection nozzle at an early stage and a later stage of fuel injection. 1... Nozzle body, 3... Needle valve (valve body),
DESCRIPTION OF SYMBOLS 11... Fuel injection hole, 19... Throttle pin (narrow diameter part at the tip), 23... Spiral groove.
Claims (1)
噴射孔に対し、前記弁体の先端細径部が進入退出
可能に設けられ、この進入時がスロツトル噴射期
間となる燃料噴射期間を有する燃料噴射ノズルに
おいて、前記弁体先端細径部の外周壁と前記燃料
噴射孔の内周壁とのいずれか一方に螺旋状の溝を
設けたことを特徴とする燃料噴射ノズル。 In a fuel injection nozzle, a small diameter portion of the tip of the valve body is provided so as to be able to enter and exit a fuel injection hole at the tip of a nozzle body that houses a valve body therein, and has a fuel injection period in which the entrance is a throttle injection period. . A fuel injection nozzle, characterized in that a spiral groove is provided in either one of the outer circumferential wall of the narrow diameter portion at the tip of the valve body and the inner circumferential wall of the fuel injection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17226785U JPS6279961U (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17226785U JPS6279961U (en) | 1985-11-11 | 1985-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6279961U true JPS6279961U (en) | 1987-05-22 |
Family
ID=31108654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17226785U Pending JPS6279961U (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6279961U (en) |
-
1985
- 1985-11-11 JP JP17226785U patent/JPS6279961U/ja active Pending