Air conditioning system
US5983657A · kind A · utility
32Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jan 26, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/061
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air conditioning system having an evaporator 8 at a location upstream from a compressor. When a compressor is stopped, a refrigerant inlet is closed by an electromagnetic valve 28 and a refrigerant outlet is closed by a check valve 29. A pressure in the closed passageway is detected by a pressure sensor 22. A leakage of refrigerant at the evaporator is reliably detected, which allows the leakage of the refrigerant to be quickly noticed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.