JPH0351172U - - Google Patents
Info
- Publication number
- JPH0351172U JPH0351172U JP11088289U JP11088289U JPH0351172U JP H0351172 U JPH0351172 U JP H0351172U JP 11088289 U JP11088289 U JP 11088289U JP 11088289 U JP11088289 U JP 11088289U JP H0351172 U JPH0351172 U JP H0351172U
- Authority
- JP
- Japan
- Prior art keywords
- tip
- nozzle
- wall thickness
- fuel injection
- valve seat
- 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
- 239000000446 fuel Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は一実施例による本考案の燃料噴射ノズ
ルの要部側面図、第２図は第１図の−線断面
図、第３図は第１図の−線断面図、第４図は
噴口周囲に発生する亀裂を示す図、第５図は噴口
周囲に亀裂を発生させる応力の分布図、第６図は
別の実施例を一部破断して示した要部側面図、第
７図及び第８図は従来の燃料噴射ノズルの要部断
面図である。
１……ノズル本体、２……先端部、４……針弁
、６……弁座、８……噴口、１０……傾斜方向（
母線）、１２，１２１，１２２……面取り部。
FIG. 1 is a side view of essential parts of a fuel injection nozzle of the present invention according to an embodiment, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, FIG. 3 is a cross-sectional view taken along the line -- in FIG. A diagram showing cracks that occur around the nozzle, FIG. 5 is a stress distribution diagram that causes cracks to occur around the nozzle, FIG. 6 is a side view of the main part of another embodiment, partially cut away, and FIG. 7 and FIG. 8 are sectional views of essential parts of a conventional fuel injection nozzle. 1... Nozzle body, 2... Tip, 4... Needle valve, 6... Valve seat, 8... Spout, 10... Inclined direction (
(generating line), 12, 12 1 , 12 2 ... Chamfered portion.
Claims (1)
端部の内面に針弁の弁座を設けると共に、前記先
端部に穿設する噴口が外表面に開口する部分の周
囲を、前記円錐の傾斜方向を除き面取りして前記
噴口を設ける部分の壁厚を前記先端部の壁厚より
薄くした燃料噴射ノズル。 The tip of the nozzle body is formed into a conical shape, and the valve seat of the needle valve is provided on the inner surface of the tip. A fuel injection nozzle in which the wall thickness of the portion where the nozzle opening is provided is thinner than the wall thickness of the tip portion by chamfering except for the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11088289U JPH0351172U (en) | 1989-09-25 | 1989-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11088289U JPH0351172U (en) | 1989-09-25 | 1989-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351172U true JPH0351172U (en) | 1991-05-17 |
Family
ID=31659388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11088289U Pending JPH0351172U (en) | 1989-09-25 | 1989-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014518986A (en) * | 2011-06-09 | 2014-08-07 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Injection valve for internal combustion engine |
| JP2016089770A (en) * | 2014-11-07 | 2016-05-23 | トヨタ自動車株式会社 | Fuel injection valve |
-
1989
- 1989-09-25 JP JP11088289U patent/JPH0351172U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014518986A (en) * | 2011-06-09 | 2014-08-07 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Injection valve for internal combustion engine |
| JP2016089770A (en) * | 2014-11-07 | 2016-05-23 | トヨタ自動車株式会社 | Fuel injection valve |