System for cooling motor bearings

Details System for cooling motor bearings System for cooling motor bearings

F - Mech Eng,Light,Heat,Weapons

16

C

308/5.5

F16C 37/00 (2006.01) F01C 21/06 (2006.01) F01D 25/12 (2006.01)

Patent

CA 1130844

A SYSTEM FOR COOLING MOTOR BEARINGS ABSTRACT OF THE DISCLOSURE A system for cooling the bearings supporting the shaft of a rotor in a motor. The rotor responds to the flow of hot fluid under pressure by moving to develop an output signal. The rotors which conduct heat from the hot fluid through the shaft and into the bearings have a series of peripheral axial slots adjacent the ends of the shaft. Fasteners engage the shaft to position the bearings over the series of axial slots. A manifold connects the slots to a discharge conduit. Some of the hot pressurized fluid is diverted through a nozzle in the discharge conduit to create a pressure differential between the manifold and the surrounding environment. This pressure differential draws air from the surrounding environment through the slots and into the manifold. The air on flowing through the slots absorbs heat from the shaft and the inside of the bearings to thereafter maintain the temperature of the bearing below the hot fluid.

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