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| Number | Title | Issue Date |
| 7290990 | Short reverse rotation of compressor at startup In a method of operating a scroll or screw compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant fr... | 11/06/2007 |
| 7040107 | Air conditioner and method of controlling the same An air conditioner has a variable capacity rotary compressor, which allows the compressor to be smoothly re-started, thus increasing start reliability of the compressor. The air conditioner includes a compressor rotated in opposite directions. A drive unit rotates t... | 05/09/2006 |
| 7033145 | Centrifugal pump for electrical household appliance or the like A centrifugal pump for a household appliance includes a synchronous alternating current electrical motor having a permanent magnet rotor and a bladed impeller coupled to an end of the rotor which extends into a cavity in the hub thereof. The rotor and the hub are pr... | 04/25/2006 |
| 6648604 | Short reverse rotation of scroll compressor at startup In a method of operating a scroll compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type which does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant... | 11/18/2003 |
| 5569022 | Self-unblocking motor-driven pump having last motion shaft coupling A pump driven by an electric motor includes a stator, a rotor cooperating with the stator, a rotating drive-shaft associated to the rotor, a hermetically sealed chamber, and a disk wheel within the sealed chamber and joined to the drive-shaft. The sealed ... | 10/29/1996 |
| 5564627 | Heating cycle system of a vehicle The invention relates to a heating cycle system of a motor vehicle which includes the vehicle internal combustion engine, a heating device which is independent of the engine, an interior heat exchanger, a circulating pump, and a bypass line which connects... | 10/15/1996 |
