Refrigerating system for use in vehicle with engine which enables selective use of commercial AC power and a generator driven by the engine for driving the refrigerant compressor
US5056330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1990 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | May 18, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cooling system including a refrigerant compressor for use in a vehicle for cooling a refrigerated compartment includes a hermetic type compressor containing a DC brushless motor as a compressor driver. An electric generator is actuated by the engine of the vehicle to generate AC electric power which is, in turn, rectified by a rectifier to produce DC electric power for driving the DC brushless motor. A switch is provided to switch over from the electric generator to a commercial AC electric power source. The commercial AC electric power is rectified by the rectifier to supply DC electric power. Thus, the compressor can be driven by a commercial AC electric power source when the engine is stopped. In order to achieve accurate temperature control in the refrigerated compartment when the engine is running, the amount of AC electric power generated by the electric generator is controlled. Further, when the engine is stopped, the amount of rectified commercial electric power delivered to the DC electric motor is controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.