JPS5884367U - Fuel injection nozzle for diesel engine - Google Patents
Fuel injection nozzle for diesel engineInfo
- Publication number
- JPS5884367U JPS5884367U JP17966881U JP17966881U JPS5884367U JP S5884367 U JPS5884367 U JP S5884367U JP 17966881 U JP17966881 U JP 17966881U JP 17966881 U JP17966881 U JP 17966881U JP S5884367 U JPS5884367 U JP S5884367U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- diesel engine
- injection nozzle
- tip
- cylindrical 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係わるディーゼル機関用燃料噴射ノズ
ルの一実施例を示す一部断面図、第２図は第１図を■−
■線で切断したときの横断面図、第３図及び第４図は前
記第１実施例の動作説明図、第５図乃至第７図は本考案
ニードルバルブ先端部の筒状部分の各実施例を示す横断
面図である。
１・・・ノズルボデー、２川噴孔、３・・・ニードルバ
ルブ、３ａ・・・先端部、３ａ３・・・筒状部分、４・
・・空隙、４ａ・・・狭所部分、５・・・切欠溝。Fig. 1 is a partial sectional view showing an embodiment of a fuel injection nozzle for a diesel engine according to the present invention, and Fig. 2 is a cross-sectional view of Fig. 1.
■A cross-sectional view when cut along a line, Figures 3 and 4 are explanatory diagrams of the operation of the first embodiment, and Figures 5 to 7 are each implementation of the cylindrical portion of the tip of the needle valve of the present invention. FIG. 3 is a cross-sectional view showing an example. DESCRIPTION OF SYMBOLS 1... Nozzle body, 2 river nozzle holes, 3... Needle valve, 3a... Tip part, 3a3... Cylindrical part, 4...
...Gap, 4a...Narrow part, 5...Notch groove.
Claims (5)
内に所定の空隙をもって配置されたニードルバルブとを
備えたスロットル型のディーゼル機関用燃料噴射ノズル
において、前記噴孔とニードルバルブの先端部と１の間
に形成される環状の空隙に狭所部分を設けるようにした
ことを特徴とするディーゼル機関用燃料噴射ノズル。(1) In a throttle-type diesel engine fuel injection nozzle comprising a nozzle hole provided in a nozzle body and a needle valve whose tip is disposed within the nozzle hole with a predetermined gap, the nozzle hole and needle 1. A fuel injection nozzle for a diesel engine, characterized in that a narrow part is provided in an annular gap formed between the tip of the valve and the valve.
ブ先端部の筒状部分の横断面形状を略四角形状とした実
用新案登録請求の範囲第（１）項記載のディーゼル機関
用燃料噴射ノズル。(2) The fuel injection nozzle for a diesel engine according to claim 1, which is registered as a utility model, wherein the cylindrical portion at the tip of the needle valve has a substantially rectangular cross-sectional shape as means for providing the narrow portion.
ブ先端部の筒状部分の横断面形状を楕円形状とした実用
新案登録請求の範囲第（１）項記載のディーゼル機関用
燃料噴射ノズル。(3) The fuel injection nozzle for a diesel engine according to claim 1, which is registered as a utility model, wherein the means for providing the narrow portion is such that the cylindrical portion at the tip of the needle valve has an elliptical cross-sectional shape.
ブ先端部の筒状部分の横断面形状を真円形状に形成する
と共に、該筒状部分の中心を噴孔の中心に対して偏心さ
せて成る実用新案登録請求の範囲第（１）項記載のディ
ーゼル機関用燃料噴射ノズル。(4) As a means for providing the narrow portion, the cross-sectional shape of the cylindrical portion at the tip of the needle valve is formed into a perfect circular shape, and the center of the cylindrical portion is eccentric with respect to the center of the nozzle hole. A fuel injection nozzle for a diesel engine according to claim (1) of the utility model registration.
ブ先端部の筒状部分の横断面形状を真円形状に形成する
と共に、該筒状部分の周面に切欠溝を設けて成る実用新
案登録請求の範囲第（１）項記載のディーゼル機関用燃
料噴射ノズル。(5) Registration of a utility model in which, as means for providing the narrow portion, the cross-sectional shape of the cylindrical portion at the tip of the needle valve is formed into a perfect circular shape, and a notch groove is provided on the circumferential surface of the cylindrical portion. A fuel injection nozzle for a diesel engine according to claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17966881U JPS5884367U (en) | 1981-12-01 | 1981-12-01 | Fuel injection nozzle for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17966881U JPS5884367U (en) | 1981-12-01 | 1981-12-01 | Fuel injection nozzle for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5884367U true JPS5884367U (en) | 1983-06-08 |
Family
ID=29975568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17966881U Pending JPS5884367U (en) | 1981-12-01 | 1981-12-01 | Fuel injection nozzle for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110867U (en) * | 1984-12-26 | 1986-07-14 |
-
1981
- 1981-12-01 JP JP17966881U patent/JPS5884367U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110867U (en) * | 1984-12-26 | 1986-07-14 |
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