Hydraulic devices

Details Hydraulic devices Hydraulic devices

F - Mech Eng,Light,Heat,Weapons

04

C

103/79

F04C 2/02 (2006.01)

Patent

CA 1211987

IMPROVEMENTS IN HYDRAULIC DEVICES ABSTRACT OF THE DISCLOSURE A hydraulic device, pump or motor, useful with the hydraulic fluid used in a mine. The device comprises a housing with an impeller within the housing. A drive shaft extends through the housing and carries the impeller. There are bearings for the shaft on either side of the impeller. The improvement is an isolator member positioned between each bearing and the impeller chamber to prevent contact between the bearing and the pumped hydraulic fluid. The invention reduces the damage to hydraulic pumps and motors without increasing fire risk within the mine and helps conserve oil. This latter advantage applies to use of the invention anywhere, including use outside a mine.

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