JPH0228568U - - Google Patents
Info
- Publication number
- JPH0228568U JPH0228568U JP10611088U JP10611088U JPH0228568U JP H0228568 U JPH0228568 U JP H0228568U JP 10611088 U JP10611088 U JP 10611088U JP 10611088 U JP10611088 U JP 10611088U JP H0228568 U JPH0228568 U JP H0228568U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- nozzle body
- nozzle hole
- hole
- wall surface
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 3
- 239000000446 fuel Substances 0.000 claims 3
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は、本考案の一実施例を示す要部の断面
図、第２図は本考案の他の実施例を示す要部の断
面図、第３図及び第４図は従来例を示し、第３図
は全体構成を示す断面図、第４図は要部の断面図
である。
１……ノズルボデイ、２……ニードル、６……
シート面、７……噴孔、９……ニードルピン、１
１……ピン先端部、１２……テーパ面、１３……
交点部、１５……噴孔上流壁面、１７……座ぐり
面。
Fig. 1 is a sectional view of the main part showing one embodiment of the present invention, Fig. 2 is a sectional view of the main part showing another embodiment of the invention, and Figs. 3 and 4 show the conventional example. , FIG. 3 is a sectional view showing the overall configuration, and FIG. 4 is a sectional view of the main parts. 1... Nozzle body, 2... Needle, 6...
Seat surface, 7... Nozzle hole, 9... Needle pin, 1
1...Pin tip, 12...Tapered surface, 13...
Intersection part, 15... Nozzle hole upstream wall surface, 17... Counterbore surface.
Claims (1)
ズルボデイと、該ノズルボデイの噴孔内に嵌入さ
れるニードルとを有する内燃機関の燃料噴射ノズ
ルにおいて、 ニードルと接触するノズルボデイ側シート面か
ら噴孔周囲のノズルボデイ壁面へ連なる噴孔上流
のノズルボデイ壁面を凹状に形成したことを特徴
とする内燃機関の燃料噴射ノズル。[Scope of Claim for Utility Model Registration] A fuel injection nozzle for an internal combustion engine that has a nozzle body equipped with a nozzle hole for injecting high-pressure fuel into a combustion chamber, and a needle inserted into the nozzle hole of the nozzle body, the nozzle body being in contact with the needle. A fuel injection nozzle for an internal combustion engine, characterized in that a nozzle body wall surface upstream of the nozzle hole that extends from a side seat surface to a nozzle body wall surface around the nozzle hole is formed in a concave shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10611088U JPH0228568U (en) | 1988-08-11 | 1988-08-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10611088U JPH0228568U (en) | 1988-08-11 | 1988-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228568U true JPH0228568U (en) | 1990-02-23 |
Family
ID=31339328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10611088U Pending JPH0228568U (en) | 1988-08-11 | 1988-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228568U (en) |
-
1988
- 1988-08-11 JP JP10611088U patent/JPH0228568U/ja active Pending