Tee-type valve for self-priming pump system

Details Tee-type valve for self-priming pump system Tee-type valve for self-priming pump system

1982-12-16

1985-01-15

Yuen, Henry C.

Rotary kinetic fluid motors or pumps

With pump recirculation passage control responsive to...

F04D 2700

Patent

active

044936079

ABSTRACT:
A self-priming system for liquid pumps wherein a priming valve is provided to convey a quantity of priming liquid to the pump upon loss of pump suction. A pilot valve is provided to regulate the pressure against a piston which serves to maintain the priming valve closed. The pilot valve includes a bleed valve to vary the liquid pressure exerted against the piston and thereby regulate the pressure level at which the priming valve will open.

REFERENCES:
patent: 2470565 (1949-05-01), Loss
patent: 3370604 (1968-02-01), Napolitano
patent: 3381618 (1968-05-01), Napolitano
patent: 4255079 (1981-03-01), Piegza
patent: 4290979 (1981-09-01), Sugiura

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