F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/139
F04D 29/58 (2006.01) F01C 21/02 (2006.01) F16C 17/24 (2006.01) G01B 7/14 (2006.01) H02K 5/167 (2006.01) H02K 9/19 (2006.01)
Patent
CA 1148024
48,418 ABSTRACT OF THE DISCLOSURE Fluid-cooled electrical apparatus having a new and improved pump for circulating the fluid within the apparatus. The pump has a motor portion in fluid communi- cation with a pump portion, non-electrically conductive bearings supporting a common shaft between the two por- tions, and means for detecting shaft displacement due to bearing wear. Electrically conductive contact rings disposed within recesses in the bearings' sleeve and thrust surfaces complete an electrical connection with the shaft in the event of bearing wear. Circuit means con- nected to the electrically conductive contact rings de- energizes the motor when the contact rings detect prede- termined bearing wear.
371402
Oldham And Company
Westinghouse Electric Corporation
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