JPS58122777U

JPS58122777U - Nozzle tube of fuel injection nozzle for diesel engine

Info

Publication number: JPS58122777U
Application number: JP1931082U
Authority: JP
Inventors: 西村　利文
Original assignee: 日産自動車株式会社
Priority date: 1982-02-16
Filing date: 1982-02-16
Publication date: 1983-08-20

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図は従来のディーゼルエンジン用燃料噴射ノズルの
構成を示す断面図、第２図は本考案のノズルチューブを
有するディーゼルエンジン用燃料噴射ノズルの構成を示
す断面図、第３〜５図は第２図に示すノズルチューブの
製造方法を示す断面図、第６図は本考案のノズルチュー
ブの他の実施例を示す断面図、第７図は本考案のノズル
−チューブのさらに他の実施例の構成を示す断面図であ
る。１４・・シリンダヘッド、２・・・ピストン、３・・・
燃料噴射ノズル、４・・・ノズルチューブ、４ａ・・・
ノズルシート部、４ｂ・・・胴部、４Ｃ・・・フランジ
部、５・・・　　゛燃料噴射弁、６・・・ウォータージ
ャケット、７・・・貫通孔、８・・・燃焼室、９・・・
貫通孔、１０・・・大径部、１１、・・・溝、１２．１
４・・・０リング、１３・・・接着剤、２０・・・管、
２１．　２２．　２３・・・部分。第１図第２図FIG. 1 is a sectional view showing the structure of a conventional fuel injection nozzle for a diesel engine, FIG. 2 is a sectional view showing the structure of a diesel engine fuel injection nozzle having a nozzle tube of the present invention, and FIGS. FIG. 2 is a sectional view showing a method of manufacturing the nozzle tube, FIG. 6 is a sectional view showing another embodiment of the nozzle tube of the present invention, and FIG. 7 is a sectional view of still another embodiment of the nozzle tube of the present invention. FIG. 3 is a cross-sectional view showing the configuration. 14...Cylinder head, 2...Piston, 3...
Fuel injection nozzle, 4... Nozzle tube, 4a...
Nozzle seat part, 4b... Body part, 4C... Flange part, 5... Fuel injection valve, 6... Water jacket, 7... Through hole, 8... Combustion chamber, 9...・・・
Through hole, 10... Large diameter part, 11,... Groove, 12.1
4...0 ring, 13...adhesive, 20...pipe,
21. 22. 23...part. Figure 1 Figure 2

Claims

[Scope of utility model registration request]

a nozzle seat that is a cylindrical body having a through hole for accommodating a fuel injection valve therein, and is fixedly attached to the through hole that penetrates from the water jacket of the cylinder head to the combustion chamber;
In a nozzle tube of a fuel injection nozzle for a diesel engine, the nozzle tube protrudes from the nozzle seat and extends into the water jacket, and includes a body portion whose upper end is fitted into a through hole provided in the upper wall of the cylinder head, A fuel injection nozzle for a diesel engine, characterized in that the nozzle seat is made of a material that is softer and more extensible than the cylinder head material, and the body is made of a material that has good corrosion resistance: these are integrally joined. tube.