Claims
- 1. A rotary compressor comprising:
- a crank shaft for driving a rolling piston;
- bearing plates to support said crank shaft; and
- an injection opening formed in at least one bearing plate to supply a refrigerant into a compression chamber formed inside said bearing plate,
- wherein said injection opening is formed at a position in said bearing plate such that said injection opening is closed by side surfaces of both said rolling piston and said eccentric part during one revolution of said crank shaft.
- 2. A rotary compressor according to claim 1, wherein:
- (a) said crank shaft has an eccentric part in said compression chamber; said eccentric part has an outer circumference which reaches a position of said injection opening during the revolution of said crank shaft and said eccentric part has a side surface in slide-contact with said bearing plate in which said injection opening is formed;
- (b) said rolling piston is rotatably fitted to said outer circumference of said eccentric part and a side surface of said rolling piston is in slide-contact with said bearing plate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
59-174562 |
Aug 1984 |
JPX |
|
Parent Case Info
This is a continuation-in-part of U.S. application Ser. No. 760,627, filed July 30, 1985.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
98064 |
Oct 1924 |
ATX |
39-24260 |
Oct 1964 |
JPX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
760627 |
Jul 1985 |
|