Valve actuator

Details Valve actuator Valve actuator

1985-10-28

1987-01-27

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Gear

74 25, 74 8916, 74437, 251249, F16K 3153

Patent

active

046389776

ABSTRACT:
A valve actuation system is disclosed having a spur wheel which meshes with a crown-wheel segment attached to the valve. For linear increase or decrease in the flow cross section, the toothing of the crown-wheel segment is arranged to produce a multiplication ratio which decreases and/or increases in the direction of opening, i.e., which produces valve opening rates which become smaller and/or larger.

REFERENCES:
patent: 18912 (1857-12-01), Ketcham
patent: 28502 (1860-05-01), Rains
patent: 2159219 (1939-05-01), Madden
patent: 2203120 (1940-06-01), Young
patent: 2399925 (1946-05-01), Hewlett, Jr.
patent: 2504006 (1950-04-01), Davis
patent: 2585971 (1952-02-01), Sloane
patent: 2986373 (1961-05-01), Masheder
patent: 3911757 (1975-10-01), Rix et al.

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