Patent ID: 6012908
Filing Date: 2000-01-11
Classification: F04B,Y10T

Abstract:
An electrically-operated sealed compressor comprising:a sealed casing;a plurality of compressor elements, including an electric motor, a cylinder, a piston provided in said cylinder, and a crankshaft, accommodated in said sealed casing;a suction muffler accommodated in said sealed casing;a passage extending between said suction muffler and one of said compressor elements;a valve plate mounted on said one of said compressor elements, said valve plate having a suction port defined therein and said suction port extends between said passage and said one of said compressor elements;a reed valve for selectively opening and closing said suction port; anda refrigerant flow branch tube opening into a portion of said passage, such that when said reed valve is closed at a compression stroke of said piston in said cylinder, an internal pressure of said passage is increased to allow a gas to flow into said refrigerant flow branch tube, and when said reed valve is opened at a subsequent suction stroke of said piston in said cylinder, the gas drawn into said refrigerant flow branch tube is immediately supplied into said cylinder through said suction port, without losing a flow inertia of the gas.