Scroll compressor
US9765781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2011 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C18/0269
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A scroll compressor includes fixed and movable scrolls, each scroll having a spiral lap placed on one surface of a plate. The lap of the fixed scroll and the lap of the movable scroll are interlocked to form a compression chamber between the laps of the scrolls which are adjacent to each other. At least one of the laps has a spiral shape in which a base radius of an involute decreases as a winding angle increases in a region extending from a winding start part to a winding middle part, and the base radius of the involute in a region extending from the winding middle part to a winding end part is larger than the smallest value of the base radius of the involute in the region extending from the winding start part to the winding middle part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.