Scroll compressor with differential pressure hole and communication hole
US9243636B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/809
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A scroll compressor is provided that includes an oil recollecting pump to recollect oil discharged from a shell, thus to effectively recollect oil discharged out of the compressor, and a differential pressure hole formed at a position where it communicates with compression chambers after a suction completion timing, such that oil stored in an inner space of the shell can be supplied into the compression chambers using a pressure difference between a high-pressure inner space of the shell and a low-pressure compression chambers, resulting in allowing oil to be smoothly supplied to a compression unit even during low-speed driving of the compressor and preventing an occurrence of a suction loss due to oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.