JPH0337275U

JPH0337275U -

Info

Publication number: JPH0337275U
Application number: JP9784189U
Authority: JP
Priority date: 1989-08-22
Filing date: 1989-08-22
Publication date: 1991-04-11

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の縦断面図、第２図
は本考案の他の実施例の縦断面図、第３図は従来
の燃料噴射弁の縦断面図である。図中、６は針弁下部室、７は噴孔、８は針弁、
１０は燃料噴射弁、１１は流体通路、１２は逆止
弁、１５は流体通路を示す。 FIG. 1 is a vertical cross-sectional view of one embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of another embodiment of the present invention, and FIG. 3 is a vertical cross-sectional view of a conventional fuel injection valve. In the figure, 6 is the needle valve lower chamber, 7 is the injection hole, 8 is the needle valve,
10 is a fuel injection valve, 11 is a fluid passage, 12 is a check valve, and 15 is a fluid passage.

Claims

[Claims for Utility Model Registration] 1. A fluid passage formed in the valve body is connected to a lower chamber of the needle valve which is provided on the downstream side of the needle valve for intermittent supply of fuel oil and has a nozzle hole, A fuel injection valve characterized in that a check valve is provided that allows fluid to flow only in the direction of flowing into the needle valve lower chamber. 2. A fluid passage formed inside the needle valve is connected to a lower chamber of the needle valve provided on the downstream side of the needle valve for intermittent supply of fuel oil and has a nozzle hole, and a fluid passage formed inside the needle valve is connected to the lower chamber of the needle valve in the fluid passage. A fuel injection valve characterized by being provided with a check valve that allows fluid to flow only in the inflow direction.