Air conditioning apparatus for vehicle, using a flammable refrigerant
US5918475A · kind A · utility
35Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Sep 27, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
According to the present invention, when leakage of refrigerant is detected during operation of an air conditioning apparatus for a vehicle, air outlets for a passenger and a solenoid valve for an air passage are closed. Accordingly, a compressor is stopped after a predetermined time has elapsed since the solenoid valve is closed. In this way, refrigerant within an evaporator is sucked and discharged. Consequently, an amount of refrigerant leaking from an air conditioner casing due to damage of the evaporator can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.