Patent ID: 6658885
Filing Date: 2003-12-09
Classification: F04C,F25B,Y10S

Abstract:
In a refrigeration system containing refrigerant and serially including a high side rotary compressor, a condenser, expansion means and an evaporator, said compressor comprising:shell means having a first end and a second end; cylinder means containing pump means including a vane and a piston coacting with said cylinder means to define suction and compression chambers; said cylinder means being fixedly located in said shell means near said first end; first bearing means secured to said cylinder means and extending towards said first end; second bearing means secured to said cylinder means and extending towards said second end; a discharge port in said second bearing means; a normally closed discharge valve controlling flow through said discharge port, an oil sump located at the lowest portion of said shell means and containing oil therein; and muffler means for directing at least a major portion of the discharge flow passing through said discharge port into said oil in said oil sump whereby said oil is heated and foam is generated.