JPS60118071U

JPS60118071U - needle valve

Info

Publication number: JPS60118071U
Application number: JP710184U
Authority: JP
Inventors: 功佐藤; 神田　康正; 小松　征男; 斉田　順二; 松岡　美春
Original assignee: 岩谷産業株式会社
Priority date: 1984-01-20
Filing date: 1984-01-20
Publication date: 1985-08-09

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図は横断平面図、第２図は閉止状態での要部拡大図
、第３図は従来例の第２図相当図である。１・・・弁本体、２・・・流路、３・・・弁室、４・・
・軸状弁体、５・・・針状弁Ｅ　６＊＊＊弁子、７・・
・弁座、９・・・４の先端面、１０・・・４のテーパー
面、１１・・・針状弁体収容室、１３・・・針状弁体挿
通孔、１６・・・スプリング、１８・・・テーパー面。FIG. 1 is a cross-sectional plan view, FIG. 2 is an enlarged view of main parts in a closed state, and FIG. 3 is a view corresponding to FIG. 2 of a conventional example. 1...Valve body, 2...Flow path, 3...Valve chamber, 4...
・Shaft-shaped valve body, 5...needle-shaped valve E 6*** Valve element, 7...
・Valve seat, 9... 4 tip surface, 10... 4 taper surface, 11... Needle valve body housing chamber, 13... Needle valve body insertion hole, 16... Spring, 18...Tapered surface.

Claims

[Scope of utility model registration request]

A valve chamber 3 is formed in the middle of a flow path 2 provided through the valve body 1,
The periphery of the opening of the flow path 2 to the valve chamber 3 is configured as a valve seat 7, and the valve seat 3
In a needle valve in which a valve element 6 is mounted so as to be movable back and forth within the needle valve, and the circumferential surface of a needle-like protrusion formed at the tip of the valve element is brought into contact with a valve seat 7, the valve seat forming wall of the valve chamber 3 is The valve seat 7 is formed into a tapered surface 10 which is the innermost part, and the valve element 6 is formed by the needle-like valve body 5 and the shaft-like valve body 4. The needle valve body chamber 11 is formed into a sealed hole, and the needle valve body insertion hole 13 is formed in the tip wall of the needle valve body chamber 11.
The needle-like valve body 5 is assembled into the needle-like valve body housing chamber 11 in such a state that its tip protrudes from the distal end surface 9 of the shaft-like valve body 4, and the needle-like valve body 5 is attached to the advancing side with a spring 16. A needle valve that is characterized by its high pressure.