Flow control valve

Details Flow control valve Flow control valve

2006-03-21

2006-03-21

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

C137S454500

Reexamination Certificate

active

07013913

ABSTRACT:
In a flow control valve, a spool is fitted into a cylindrical body including an input port and an output port. A spring is disposed between the spool and a flow rate setting plug at an end of the cylindrical body. A flow bypass communicating with the input port and the output port is provided on an outer peripheral portion of the cylindrical body. When a quantity of a fluid flowing through the flow control valve is reduced, the fluid flowing through the flow bypass compensates the reduction thereof. Accordingly, it is possible to maintain a constant flow rate.

REFERENCES:
patent: 1741489 (1929-12-01), Watts
patent: 3015341 (1962-01-01), Heland et al.
patent: 3741241 (1973-06-01), Jackson
patent: 4724866 (1988-02-01), Bates et al.
patent: 5474105 (1995-12-01), Able et al.

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