JPH0387963U

JPH0387963U -

Info

Publication number: JPH0387963U
Application number: JP14882789U
Authority: JP
Priority date: 1989-12-25
Filing date: 1989-12-25
Publication date: 1991-09-09

Description

[Brief explanation of drawings]

第１図ないし第３図は本考案の実施例を示し、
第１図は残圧保持弁の弁体とこの弁体を支持した
弁体支持部材とを示す斜視図、第２図は残圧保持
弁の閉弁状態を示す要部縦断面図、第３図は残圧
保持弁の開弁状態を示す第２図と同様の要部縦断
面図、第４図ないし第６図は従来技術に係り、第
４図は燃料ポンプの全体構成を示す縦断面図、第
５図は第４図中の残圧保持弁の閉弁状態を示す要
部縦断面図、第６図は残圧保持弁の開弁状態を示
す第５図と同様の要部縦断面図である。３１……残圧保持弁、３３……弁室、３４……
吐出口、３５……弁座、３６……弁体、３６Ａ…
…弁頭部、３６Ｂ……弁棒部、３７……弁体支持
部材、３７Ａ……支持筒部、３７Ｂ……筒部固定
部材、３７Ｃ……脚部、３７Ｄ……筒部固定部。 1 to 3 show embodiments of the present invention,
FIG. 1 is a perspective view showing the valve body of the residual pressure holding valve and the valve body support member that supported the valve body, FIG. 2 is a vertical sectional view of the main part showing the residual pressure holding valve in the closed state, The figure is a longitudinal sectional view of the main parts similar to Fig. 2 showing the open state of the residual pressure holding valve, Figs. 4 to 6 relate to the prior art, and Fig. 4 is a longitudinal sectional view showing the overall configuration of the fuel pump. Figure 5 is a longitudinal sectional view of the main part showing the closed state of the residual pressure holding valve in Fig. 4, and Fig. 6 is a longitudinal sectional view of the main part similar to Fig. 5 showing the residual pressure holding valve in the open state. It is a front view. 31... Residual pressure holding valve, 33... Valve chamber, 34...
Discharge port, 35... Valve seat, 36... Valve body, 36A...
... Valve head, 36B... Valve stem part, 37... Valve body support member, 37A... Support tube part, 37B... Cylinder fixing member, 37C... Leg part, 37D... Tube fixing part.

Claims

[Scope of utility model registration request]

A valve chamber and a valve seat are formed at the discharge port of the fuel pump, and a valve is provided within the valve chamber, and by contacting the valve seat and closing the valve, the residual pressure is maintained in the fuel supply pipe to the fuel injection valve side. a valve body provided within the valve chamber,
In a residual pressure holding valve for a fuel pump comprising a valve body support member that slidably supports the valve body, the valve body includes a valve head that directly contacts the valve seat, and a valve head that is integrally attached to the valve head. The valve body support member is formed to cover the entire length of the valve stem, and includes a support cylinder part that slidably supports the valve stem, and the support cylinder part. and a cylindrical part fixing member fixed in the valve chamber in a supported state.