JPS59142469U - Diesel engine fuel injection nozzle - Google Patents
Diesel engine fuel injection nozzleInfo
- Publication number
- JPS59142469U JPS59142469U JP3804583U JP3804583U JPS59142469U JP S59142469 U JPS59142469 U JP S59142469U JP 3804583 U JP3804583 U JP 3804583U JP 3804583 U JP3804583 U JP 3804583U JP S59142469 U JPS59142469 U JP S59142469U
- Authority
- JP
- Japan
- Prior art keywords
- diesel engine
- injection nozzle
- fuel injection
- hole
- engine fuel
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来の渦流室式ディーゼルエンジンの渦流室
近傍を示す略示断面図、第２図は、本考案に係るディー
ゼル機関の燃料噴射ノズルが採用された、渦流室式ディ
ーゼルエンジンの実施例における、燃料噴射ノズルの燃
料噴射口近傍を示す拡大断面図、第３図は、同実施例に
おける渦流室近傍を示す拡大断面図、第４図は、エンジ
ン負荷とニードルピンのリフト量との関係を示す線図、
第５図は、同実施例におけるエンジンの低速、低負荷時
のニードルピンの作動状態を示す、燃料噴射口近傍の拡
大断面図、第６図は、同実施例におけるエンジンの高速
、高負荷時のニードルピンの作動状態を示す燃料噴射口
近傍の拡大断面図、第７図はζ本考案が採用可能なマン
式燃焼室を有すを直接噴射式ディーゼルエンジンにおけ
る燃焼室を示す略示平面図である。
１２・・・渦流室、２２・・・燃焼室、３０・・・燃料
噴射ノズル、３２・・・主噴孔、３３・・・副孔、３４
・・・ニードルピン、３５・・・弁部。FIG. 1 is a schematic cross-sectional view showing the vicinity of the swirl chamber of a conventional swirl chamber diesel engine, and FIG. 2 is an implementation of a swirl chamber diesel engine in which the diesel engine fuel injection nozzle according to the present invention is adopted. FIG. 3 is an enlarged sectional view showing the vicinity of the fuel injection port of the fuel injection nozzle in the example, FIG. 3 is an enlarged sectional view showing the vicinity of the swirl chamber in the same example, and FIG. A diagram showing the relationship,
FIG. 5 is an enlarged cross-sectional view of the vicinity of the fuel injection port showing the operating state of the needle pin when the engine is running at low speed and under low load in the same embodiment, and FIG. FIG. 7 is an enlarged cross-sectional view of the vicinity of the fuel injection port showing the operating state of the needle pin, and FIG. It is. 12... Swirl chamber, 22... Combustion chamber, 30... Fuel injection nozzle, 32... Main injection hole, 33... Sub-hole, 34
...Needle pin, 35...Valve part.
Claims (2)
燃料を噴射するための主噴孔と、該主噴孔の近傍に形成
された、前記燃料燃焼部の中心方向に燃料を噴射するた
めの副孔と、を有するディーゼル機関の燃料噴射ノズル
において、高速、高負荷時に、前記副孔を閉鎖するよう
にしたことを特徴とするディーゼル機関の燃料噴射ノズ
ル。(1) A main nozzle hole for injecting fuel toward the wall surface of the fuel combustion section in a diesel engine, and a sub nozzle hole formed near the main nozzle hole for injecting fuel toward the center of the fuel combustion section. 1. A fuel injection nozzle for a diesel engine having a hole, wherein the sub-hole is closed at high speed and high load.
部を、ニードルピンの先端部に設けたことを特徴とする
実用新案登録請求の範囲第１項記載のディ−ゼル機関の
礁料噴射ノズル。(2) The diesel engine according to claim 1, characterized in that a valve portion for closing the subhole at high speed and high load is provided at the tip of the needle pin. Reef injection nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3804583U JPS59142469U (en) | 1983-03-15 | 1983-03-15 | Diesel engine fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3804583U JPS59142469U (en) | 1983-03-15 | 1983-03-15 | Diesel engine fuel injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59142469U true JPS59142469U (en) | 1984-09-22 |
Family
ID=30168724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3804583U Pending JPS59142469U (en) | 1983-03-15 | 1983-03-15 | Diesel engine fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59142469U (en) |
-
1983
- 1983-03-15 JP JP3804583U patent/JPS59142469U/en active Pending
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