Oil and refrigerant pump for centrifugal chiller

F - Mech Eng,Light,Heat,Weapons – 25 – B

Patent

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Details

F25B 31/00 (2006.01) F01M 1/12 (2006.01) F01P 5/10 (2006.01) F04D 13/12 (2006.01) F04D 29/06 (2006.01) F04D 29/58 (2006.01) F25B 1/053 (2006.01)

Patent

CA 2307096

A single motor (26) drives both oil and refrigerant pumps (24, 36) in a refrigeration chiller (20), the motor (26) and oil pump (24) being disposed in the chiller's oil supply tank (28) and the refrigerant pump being disposed exterior thereof. The refrigerant pump (36) pumps liquid refrigerant to the chiller's compressor section so as to cool the motor (22) by wich the compressor (20) is driven while the oil pump (24) pumps oil to chiller locations that require lubrication when the chiller (10) is in operation.

L'invention concerne un moteur (26) unique qui entraîne à la fois des pompes (24, 36) à huile et à frigorigène dans un dispositif (20) frigorifique, le moteur (26) et la pompe (24) à huile étant placés dans le réservoir (28) d'alimentation d'huile du dispositif frigorifique, et la pompe (36) à frigorigène étant placée à l'extérieur de celui-ci. La pompe (36) à frigorigène pompe du frigorigène liquide en direction de la section de compresseur du dispositif frigorifique, de façon à refroidir le moteur (22) qui entraîne le compresseur (20), alors que la pompe (24) à huile pompe de l'huile en direction de zones du dispositif (10) frigorifique qui nécessitent une lubrification lorsque celui-ci fonctionne.

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