Patent ID: 6413061
Filing Date: 2002-07-02
Classification: B22F,C23C,F01C,F04C,F05C,Y10T

Abstract:
A rotary compressor comprising:(a) a cylinder having an inner space and a groove, said groove penetrating through an outside and an inner space of said cylinder, (b) a roller sliding along the inner surface of the inner space of said cylinder, (c) a vane inserted in said groove, said vane sliding in and out in said groove while sliding on said roller, and (d) a refrigerant, wherein said vane includes sintered stainless steel, a nitrogen diffusion layer disposed on the sintered stainless steel, and a compound layer of iron and nitrogen disposed on the nitrogen diffusion layer, and the sintered stainless steel has a plurality of fine pores formed by sintering of the powder material, and the plurality of fine pores have a porosity in a range of more than 0% to 15% or less.