JPS60128970U

JPS60128970U - fuel injection valve

Info

Publication number: JPS60128970U
Application number: JP1803984U
Authority: JP
Inventors: 熊高　宏之
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 1984-02-09
Filing date: 1984-02-09
Publication date: 1985-08-29

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

[Brief explanation of the drawing]

′　　　第１図は従来の燃料噴射弁を示す断面図、第２
図は燃料噴射量と未燃ＨＣの排出量との関係を示すグラ
フ、第３図は噴孔径と未燃間の排出量との関係を示すグ
ラフ、第４図は噴孔径とスモーク生成量、出力との関係
を示すグラフである。第５図及び第６図は本考案に係る
燃料噴射弁の一実施例を示すその断面図であり、第５図
は面積可変部材の未変形時を、第６図はその変形時をそ
れぞれ　　　′示している。第７図は面積可変部材への
通電制御回路を示す概略全体図、第８図は同じく制御回
路図、第９図は回転数センサの出力を示すグラフ、第１
０図はコントロールレバーの開度センサの出力を示すグ
ラフである。１１・・・・・・ノズルボディ、１２・・・・・・ニー
ドルバルブ、１５・・・・・・噴孔、２０・・・・・・
面積可変部材。人！ − −ズベ羽瞳射量Ｑ（“Ｔｔ−ｃｌｌつ大　−゛　　−＼第４図　　　　′ −−−ロＩト扁丁イイし　ｃｉ−Ｃｍｍｙ）−−７ノ（
。　　　　−、−’１４−２０　　−' Figure 1 is a sectional view showing a conventional fuel injection valve;
Figure 3 is a graph showing the relationship between fuel injection amount and unburned HC emissions, Figure 3 is a graph showing the relationship between nozzle hole diameter and unburned HC emissions, Figure 4 is a graph showing the relationship between nozzle hole diameter and smoke generation amount, It is a graph showing the relationship with output. 5 and 6 are cross-sectional views showing one embodiment of the fuel injection valve according to the present invention, FIG. 5 shows the variable area member when it is not deformed, and FIG. 6 shows it when it is deformed, respectively. It shows. Fig. 7 is a schematic overall diagram showing the current supply control circuit to the variable area member, Fig. 8 is the same control circuit diagram, Fig. 9 is a graph showing the output of the rotation speed sensor, and Fig. 1
Figure 0 is a graph showing the output of the control lever opening sensor. 11... Nozzle body, 12... Needle valve, 15... Nozzle hole, 20...
Variable area member. Man! - -Zube wing pupil radiation Q ("Tt-cll 2 large -゛ -\ Figure 4' - -Ro I flat side good ci-Cmmy)--7 (
. -, -'14-20 -

Claims

[Scope of utility model registration request]

A fuel injection valve that includes a nozzle body with a nozzle hole formed at its tip and a needle valve that is reciprocatably housed within the nozzle body and opens and closes the nozzle hole in response to fuel pressure. The fuel injection valve is characterized in that the nozzle body is provided with a variable area member that is deformed by the nozzle body and that changes the opening area of the nozzle hole.