Structure for sensing refrigerant flow rate in a compressor
US7658081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Sep 26, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/13
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The compressor has a differential pressure type flow rate detector that obtains the pressure in an upstream passage and the pressure in a downstream passage to detect a refrigerant flow rate within a refrigerant passage. The detector has an accommodation chamber, and a partition body slidably accommodated within the accommodation chamber. The partition body comparts the accommodation chamber into a high pressure chamber to which the pressure in the upstream passage is introduced, and a low pressure chamber to which the pressure in the downstream passage is introduced. The compressor has an oil separator having an oil introduction passage connected to the oil separating chamber and a high pressure introduction passage introducing the pressure in the upstream passage to the high pressure chamber. The oil introduction passage introduces the oil separated from the refrigerant by the oil separator to a pressure zone other than a discharge pressure zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.