JPS6230069U

JPS6230069U -

Info

Publication number: JPS6230069U
Application number: JP12227785U
Authority: JP
Priority date: 1985-08-09
Filing date: 1985-08-09
Publication date: 1987-02-23

Description

[Brief explanation of the drawing]

第１図は本考案による吐出ポート用チエツク弁
を組込まれた燃料ポンプの一つの実施例を示す縦
断面図、第２図は第１図に示された本考案による
吐出ポート用チエツク弁の一つの実施例を示す拡
大縦断面図、第３図は第２図の線―に沿う断
面図、第４図は従来の吐出ポート用チエツク弁に
於ける弁体の首振り現象を示す断面図である。１……ポンプハウジング、２……ポンプ羽根車
、３……ポンプ駆動用連動機、４……出力軸、５
……吸入ポート、６……吐出ポート、７……リリ
ーフ弁、８……チエツク弁、９……弁座部、１０
……弁体、１１……頭部、１２……弁ステム部、
１３……弁保持部材、１４……案内口、１５……
振れ防止用弁体案内部、１６……吐出通路。 FIG. 1 is a longitudinal cross-sectional view showing one embodiment of a fuel pump incorporating a check valve for a discharge port according to the present invention, and FIG. 3 is a sectional view taken along the line of FIG. 2, and FIG. 4 is a sectional view showing the swinging phenomenon of the valve body in a conventional discharge port check valve. be. 1... Pump housing, 2... Pump impeller, 3... Pump drive interlocking device, 4... Output shaft, 5
... Suction port, 6 ... Discharge port, 7 ... Relief valve, 8 ... Check valve, 9 ... Valve seat, 10
... Valve body, 11 ... Head, 12 ... Valve stem part,
13... Valve holding member, 14... Guide port, 15...
Valve body guide part for vibration prevention, 16...Discharge passage.

Claims

[Scope of utility model registration request]

A check valve provided at a discharge port of a liquid pump includes an annular valve seat, a valve body movably provided to selectively seat on the valve seat, and a portion surrounding the valve body. A check valve for a discharge port of a liquid pump, having a rib-shaped vibration prevention valve body guide portion extending along its axial direction.