JPS5952107U

JPS5952107U - inlet valve

Info

Publication number: JPS5952107U
Application number: JP14911382U
Authority: JP
Inventors: 水村　照雄
Original assignee: 日野自動車株式会社
Priority date: 1982-09-30
Filing date: 1982-09-30
Publication date: 1984-04-05

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図は従来例を示す部分正面図、第２図は本考案に係
るインレットバルブの一実施例を示す部分正面図、第３
図はシート角、接線角とスワール比及び流量係数を表わ
すグラフである。 α・・・シート角、β・・・接線角、１．５・・・シー
ト部、ｉａ、　　５ａ・・・内縁、２・・・弁棒部、３
・・・段付部、４゜６・・・凹状彎曲面部。FIG. 1 is a partial front view showing a conventional example, FIG. 2 is a partial front view showing an embodiment of the inlet valve according to the present invention, and FIG.
The figure is a graph showing the sheet angle, tangent angle, swirl ratio, and flow coefficient. α... Seat angle, β... Tangent angle, 1.5... Seat part, ia, 5a... Inner edge, 2... Valve stem part, 3
...Stepped part, 4゜6...Concave curved surface part.

Claims

[Scope of utility model registration request]

The inlet valve has a seat angle in which the seat portion that is seated on and off the valve seat gradually decreases in diameter toward the valve stem, and the seat angle of the seat portion is set to 35 degrees to 4 degrees.
0 degree, and a gently curved concave surface is provided between the inner edge of the seat and the valve stem, and the tangent of the curved surface at the connection with the inner edge of the seat and the normal of the seat. This inlet valve is characterized by having an angle of 5 degrees to 15 degrees.