Rotary compressor for changing compression capacity
US7854602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2004 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Oct 25, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86638
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary compressor for changing a compression capacity of the compressor includes a driving shaft being rotatable clockwise and counterclockwise, and having an eccentric portion of a predetermined size; a cylinder forming a predetermined inner volume; a roller installed rotatably on an outer circumference of the eccentric portion so as to contact an inner circumference of the cylinder; a vane installed elastically in the cylinder to contact the roller continuously; a first bearing installed in the cylinder, for rotatably supporting the driving shaft; a second bearing installed in the cylinder, for rotatably supporting the driving shaft and guiding the fluid into the fluid chamber; discharge ports communicating with the fluid chamber; and a valve assembly having openings separated by a predetermined angle from each other, the valve assembly having a center which is eccentrically installed by a predetermined distance from a center of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.