Patent ID: 6592347
Filing Date: 2003-07-15
Classification: C10M,F01C,F04C

Abstract:
A rotary compressor having a refrigerating circuit which sequentially connects a compressor, a condenser, an expander, and an evaporator by pipes, using carbonic acid gas as a refrigerant, and polyalkylene glycol or polyalfa olefin as a lubricant or mineral oil as base oil, said rotary compressor comprising:a cylinder having an inlet and an outlet; a rotary shaft having a crank portion provided on an axial line of said cylinder; a roller which is provided between said crank portion and said cylinder and eccentrically rotates; a vane which reciprocates in a groove provided to said cylinder and slidingly comes into contact with an outer peripheral surface of said roller, wherein a radius of curvature (Rv) (cm) of said vane at a sliding contact portion with respect to said roller can be represented by the following expression: Tâ€ƒâ€ƒExpression (1) â€ƒwhere T is a thickness (cm) of said vane and Rr is a radius of curvature of an outer periphery of said roller which slidingly comes into contact with said vane.