Double-cylinder two-stage compression rotary compressor
US6616428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Nov 8, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A double-cylinder two-stage compression rotary compressor (10) comprising a first and a second compressors (32 , 34), driven by an electric motor (14), all accommodated in a sealed container (12). The first and the second compressor (32, 34) have respective first and second cylinders (40, 42) accommodating first and second rollers (48, 50), fitted on respective first and second eccentric cams (44, 46). The inner spaces of the first and second cylinders are partitioned by respective first and second vanes (52, 54) to form suction spaces and compression spaces. The two cylinders are separated by an intermediate partition panel (38), which has a central bore (36) for passing therethrough a shaft (16) of the motor (14). The center of the bore (36a) of the intermediate partition panel (38) facing the first roller (48) is offset away from the center-of the shaft (16) to an angular position having a central angle about the center of the shaft in the range of 90±45 degrees with reference to the first vane (52), and the center of the bore (36b) of the intermediate partition panel (38) facing the second roller (50) is offset about the center of the shaft (16) by an angle in the range …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.