Scheduled fluid control valve

Details Scheduled fluid control valve Scheduled fluid control valve

1983-01-26

1987-05-05

Scott, Samuel

Fluid handling

Systems

Programmer or timer

1376242, 251230, E03B 707

Patent

active

046623973

ABSTRACT:
A scheduled fluid control valve which performs a pre-established sequence of flow rates and timing schedules in response to pressure pulses in the controlled fluid. The valve consists of a generally cylindrical housing connected to a source of pressurized fluid and containing circular plates or cylindrical control surfaces coupled to actuating means responsive to the presence of pressurized fluid. The actuating means includes an actuator plate or cylinder, a biasing spring, and a longitudinal shaft or cylinder upon which is incised at least one generally helical groove within which track one or more follower pins. Pressurized fluid causes the actuator plate or cylinder to rotate, following the path defined by the helical groove, resulting in relative movement of the control surfaces whereby the schedule embodied in the relative size and placement of fluid ports through the control surfaces is performed. A plurality of control surfaces may be substituted to select a large number of fluid flow schedules and flow rates.

REFERENCES:
patent: 1644171 (1927-10-01), Caldwell
patent: 2478702 (1949-08-01), Moody
patent: 2793908 (1957-05-01), Carver
patent: 3459208 (1969-08-01), Clyde
patent: 3489155 (1970-01-01), Loveless
patent: 3572216 (1971-03-01), Seesody
patent: 4116216 (1978-09-01), Rosenberg
patent: 4320777 (1982-03-01), Tomlin et al.

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