Rotary piston valve arrangement

Details Rotary piston valve arrangement Rotary piston valve arrangement

1989-11-15

1990-11-20

Michalsky, Gerald A.

Fluid handling

Systems

Programmer or timer

137596, 137862, 209502, F16K 1110

Patent

active

049711113

ABSTRACT:
A rotary piston valve arrangement, for a pneumatic settling tank, including rotary piston valves disposed in a common housing, with a first rotary piston valve being designed for the control of an additive stroke, and a second rotary piston valve being designed for the control of a discharge position. To reduce the amount of air required for controlling the settling tank, an element is provided for periodically shutting off the passage of air between the air inlet opening of the first rotary piston valve and the settling chamber during the time interval of an intake position of the first rotary piston valve and a simultaneous discharge position of the second rotary piston valve.

REFERENCES:
patent: 4566487 (1986-01-01), Lotz

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