Abstract:
A suction valve having a chamber including an outlet communicating with the suction port of a rotary compressor, an inlet for receiving a flow of gas, a valve holding area having a film of liquid arranged opposite the inlet and a valve movable between the inlet and the holding area. The liquid has a viscosity sufficient to create a surface tension which will maintain the valve in the holding area during the flow of gas and to permit the valve to break the surface tension a predetermined time after the termination of the gas flow.