Patent ID: 6182467
Filing Date: 2001-02-06
Classification: F04C,F25B

Abstract:
A closed refrigeration system containing refrigerant and oil and serially including a compressor having a suction port and a discharge port and driven by a motor, a discharge line extending from said discharge port to a condenser, an expansion device, a cooler and a suction line connected to said suction port, the improvement comprising:a generator fluidly connected to said cooler for receiving a fluid mixture containing refrigerant and oil from said cooler;means for supplying a liquid refrigerant and oil mixture from said condenser to said generator in a heat exchange relationship with said fluid mixture in said generator whereby refrigerant is boiled off from said fluid mixture producing an oil-rich mixture;means for supplying boiled off refrigerant from said generator to said suction port;means for pumping;a lubrication distribution system connected to said means for pumping;means for supplying said oil-rich mixture from said generator to said means for pumping;means for causing said means for pumping to cause said oil-rich mixture to be supplied to said lubrication distribution system;said lubrication system providing lubrication to said compressor.