JPS615364U

JPS615364U - Fuel pump

Info

Publication number: JPS615364U
Application number: JP9133384U
Authority: JP
Inventors: 勝彦大野
Original assignee: 富士重工業株式会社
Priority date: 1984-06-18
Filing date: 1984-06-18
Publication date: 1986-01-13

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図ないし第３図は本考案の一実施例に係り、第１図
は正面図、第２図は燃料コックが閉動しカムがダイヤフ
ラムを往動している状態を示す断面図、第３図は燃料コ
ックが開動しカムがダイヤフラムから離間して該ダイヤ
プラムが復動している状態を示す断面図である。１・・・・・・燃料ポンプ、２・・・・・・燃料タンク
、３・・・・・・燃料供給管路、９・・・・・・ダイヤ
フラム、１−２・・・・・・リターンスプリング、１９
・・・・・・取り出しパイプ、２０・・・・・・燃料コ
ック、２１・・・・・・カム。1 to 3 relate to one embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a sectional view showing the state in which the fuel cock is closed and the cam is moving forward on the diaphragm, and FIG. FIG. 3 is a sectional view showing a state in which the fuel cock is opened, the cam is separated from the diaphragm, and the diaphragm is moving back. DESCRIPTION OF SYMBOLS 1...Fuel pump, 2...Fuel tank, 3...Fuel supply pipe, 9...Diaphragm, 1-2... Return spring, 19
...Take-out pipe, 20...Fuel cock, 21...Cam.

Claims

[Scope of utility model registration request]

A diaphragm fuel pump that is driven by the action of pressure in the crankcase or boost pressure of the intake system, etc. is disposed in the fuel supply pipe system leading from the fuel tank to the carburetor, and the fuel supply pipe system is equipped with A fuel cock for opening and closing the road system is provided, and a cam that rotates together with the fuel cock is opposed to the diaphragm of the fuel pump, so that when the fuel cock is opened, the cam releases pressure on the diaphragm. A fuel pump characterized in that a diaphragm moves backward by a return spring, and when the fuel cock is closed, a cam presses the diaphragm to move it forward against the biasing force of the return spring.