Gas metering orifice for decreasing gas consumption of pneumatic

Details Gas metering orifice for decreasing gas consumption of pneumatic Gas metering orifice for decreasing gas consumption of pneumatic

1976-08-18

1978-01-24

Maslousky, Paul E.

Motors: expansible chamber type

Differential

Motive fluid constantly applied to one working member face

91459, F15B 1517, F15B 13044

Patent

active

040697444

ABSTRACT:
Disclosed is an improved double acting piston actuator proportionally controlled by a pulse duration modulated control valve having a gas metering orifice in the actuator gas supply line to decrease gas consumption. The orifice reduces gas pressure applied to the actuator in proportion to the rate of gas use. The actuator has maximum gas consumption at mid range where actual load is a minimum and minimum consumption at actuator extremes where the load is maximum. The orifice thus supplies maximum pressure only when needed and reduces pressure and consumption under no load conditions.

REFERENCES:
patent: 2310750 (1943-02-01), Schnell
patent: 3390612 (1968-07-01), Wills
patent: 3478645 (1969-11-01), Canalizo
patent: 3521535 (1970-07-01), Pelrich

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