Scroll type compressor enabling a soft start with a simple structure
US6132179A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C28/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor has a compressor housing (10) which includes therein a fixed scroll (25) having a fixed plate member (51) and a fixed spiral member (52) provided on the fixed plate member, and a movable scroll (26) having a movable plate member (61) and a movable spiral member (62) provided on the movable plate member. The fixed plate member is provided with a plurality of bypass holes (51a, 51b) for allowing gas introduced into fluid pockets defined between the fixed and movable spiral members to escape at different positions. The fixed plate member is further provided with a plurality of valve mechanisms each corresponding to one of the plurality of bypass holes for opening or closing the corresponding bypass hole. Operating pressures of the valve mechanisms are set different from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.