Device for prevention of backward operation of scroll compressors
US6893227B2 · kind B2 · utility
1Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Mar 21, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus which provides a pressure sensor and/or temperature sensor connected to the low pressure side of a refrigeration system, or the discharge line of a scroll compressor. When the scroll compressor rotates backward, the change of pressure or temperature immediately sends a signal to work with a time-delay relay and a normally closed relay to immediately cut off the electrical power supply to the compressor. Thus, causing the scroll compressor to stop rotating in the undesirable direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.