Fluid pumping device

Details Fluid pumping device Fluid pumping device

1981-01-23

1983-01-25

Gluck, Richard E.

Pumps

With condition responsive pumped fluid control

Bypass or relief valve part carried by or carries...

137506, 137510, 1375122, 417366, F04B 4902, F04B 4708

Patent

active

043701027

ABSTRACT:
A device for pumping fluid includes a main pump device and an auxiliary device integrally fixed thereto. The auxiliary device can function as a damper, cut-off valve, check valve and relief valve. The auxiliary device includes a first and second room separated by a diaphragm. The first room is connected to the fuel supply passage of the main pump device. One end of the outlet passage of the auxiliary device is connected to the first room by way of a valve mechanism consisting of a valve body and valve seat. The valve body is actuated by deforming of the diaphragm in response to the change of the fluid pressure within the first room. A relief passage is formed in the valve body to connect the first room with the second room. A relief valve such as a ball valve is placed in cooperation with the relief passage.

REFERENCES:
patent: 1885000 (1932-10-01), Muller
patent: 2603231 (1952-07-01), Birkemeier
patent: 4336002 (1982-06-01), Rose et al.

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