Turbine controlled metering valve

Details Turbine controlled metering valve Turbine controlled metering valve

1995-10-30

1998-09-15

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137489, 13762411, 251 20, F16K 1734

Patent

active

058065563

ABSTRACT:
A metering valve includes a main valve and a pilot valve for operating the main valve. A low operating force pawl and ratchet system rotates a cam to open the pilot valve to initiate a cycle of operation. When the main valve is opened, a turbine wheel in the flow path rotates to measure flow. Turbine rotation is transmitted to the cam through a reducing gear assembly and a lost motion connection in order to reclose the pilot and main valves after a predetermined volume of flow is measured.

REFERENCES:
patent: Re22710 (1946-01-01), Cornell et al.
patent: 2057333 (1936-10-01), Guibert
patent: 3902201 (1975-09-01), Bobo
patent: 4058286 (1977-11-01), Berger
patent: 4418839 (1983-12-01), Nichols
patent: 4662602 (1987-05-01), Johnson
patent: 4916762 (1990-04-01), Shaw
patent: 5065901 (1991-11-01), Brane et al.
patent: 5421361 (1995-06-01), Johnson

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