Claims
- 1. A rotary compressor comprising:a cylinder, a crank shaft having an eccentric part disposed in said cylinder, a bearing which rotatably supports said crank shaft, a roller which moves in said cylinder following said eccentric part, and a vane having a tip which is circular in cross section with a radius Rv, wherein a groove is provided on a part of the outer periphery of said roller, with the tip of said vane being disposed in contact swingably in said groove, and a wedge shaped gap formed in a predetermined relation between said tip of the vane and said groove in the sliding direction thereof.
- 2. A rotary compressor according to claim 1, wherein a flat surface is formed on a part of the longitudinal length or on full length of the R shaped part at the tip of said vane, wherein said flat surface is provided by flattening said tip which is circular in cross section with a radius R.
- 3. A rotary compressor according to claim 1, wherein fine oil grooves are formed on a part of the longitudinal length or full length of the between said groove and said vane tip.
- 4. a rotary compressor according to claim 1, wherein a refrigerant not containing chlorine is used as a refrigerant.
- 5. A rotary compressor according to claim 1, wherein the radius of said tip of the vane which is circular in cross section is denoted by Rv; the inner surface of said groove is circular in cross section; the radius of said inner surface is denoted by Rr; and said predetermined relation is expressed by0<(Rr−Rv)/Rr<0.1.
Priority Claims (3)
Number |
Date |
Country |
Kind |
8-180269 |
Jul 1996 |
JP |
|
8-245856 |
Sep 1996 |
JP |
|
8-307588 |
Nov 1996 |
JP |
|
Parent Case Info
This application is a division of allowed application Ser. No. 08/891,155 filed Jul. 10, 1997, U.S. Pat. No. 6,132,195, which is incorporated herein by reference.
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Non-Patent Literature Citations (1)
Entry |
Kawahira, Sealed Tye Refrigerator, Fig. 6.1, 1993, p. 13. |