JPH0444475U - - Google Patents
Info
- Publication number
- JPH0444475U JPH0444475U JP8610090U JP8610090U JPH0444475U JP H0444475 U JPH0444475 U JP H0444475U JP 8610090 U JP8610090 U JP 8610090U JP 8610090 U JP8610090 U JP 8610090U JP H0444475 U JPH0444475 U JP H0444475U
- Authority
- JP
- Japan
- Prior art keywords
- injection
- nozzle
- fuel
- holes
- main body
- 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 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の燃料噴射ノズルに係る一実施
例の縦断面図、第２図は第１図のＡ−Ａ矢視断面
拡大図、第３図は噴射量と噴孔面積との関係を表
わした図、第４図は噴孔数と騒音レベル及びＮＯ
ｘ排出量との関係を表わした図、第５図は従来の
技術の燃料噴射ノズルに係る縦断面図、第６図は
第５図のＢ−Ｂ矢視断面拡大図である。
図面中、１は本体、２，１２はニードル、２ａ
は噴孔閉鎖凸部、６はノズルチツプ部、７は噴孔
である。
Fig. 1 is a vertical cross-sectional view of one embodiment of the fuel injection nozzle of the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is the relationship between the injection amount and the nozzle hole area. Figure 4 shows the number of nozzle holes, noise level and NO.
FIG. 5 is a longitudinal cross-sectional view of a conventional fuel injection nozzle, and FIG. 6 is an enlarged cross-sectional view taken along the line B--B in FIG. 5. In the drawing, 1 is the main body, 2 and 12 are needles, and 2a
6 is a nozzle tip portion, and 7 is a nozzle hole.
Claims (1)
エンジンの燃焼室内に該複数の噴孔から燃料を噴
射する本体と、該本体内に移動可能に設置され且
つ噴射ポンプから送られた燃料の圧力により移動
して該複数の噴孔に燃料を送り込むニードルとを
有する燃料噴射ノズルにおいて、前記ニードルの
移動量に適合して前記複数の噴孔からの燃料噴射
を制御する噴孔閉鎖凸部を、複数の噴孔の内の一
部の噴孔と対応するように前記ニードルの先端部
に形成したことを特徴とする燃料噴射ノズル。 A main body formed with a plurality of nozzle holes penetrating the inside and outside and injecting fuel from the plurality of nozzle holes into the combustion chamber of the engine, and a main body movably installed within the main body and injecting fuel sent from an injection pump. A fuel injection nozzle having a needle that moves under pressure to feed fuel into the plurality of injection holes, the injection hole closing convex portion controlling fuel injection from the plurality of injection holes in accordance with the amount of movement of the needle. A fuel injection nozzle, characterized in that the fuel injection nozzle is formed at the tip of the needle so as to correspond to some of the plurality of injection holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8610090U JPH0444475U (en) | 1990-08-17 | 1990-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8610090U JPH0444475U (en) | 1990-08-17 | 1990-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444475U true JPH0444475U (en) | 1992-04-15 |
Family
ID=31817592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8610090U Pending JPH0444475U (en) | 1990-08-17 | 1990-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444475U (en) |
-
1990
- 1990-08-17 JP JP8610090U patent/JPH0444475U/ja active Pending
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