Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having... – For shaft sealing – packing – lubricating or bearing means
Patent
1989-12-13
1991-02-05
Look, Edward K.
Rotary kinetic fluid motors or pumps
With lubricating, sealing, packing or bearing means having...
For shaft sealing, packing, lubricating or bearing means
4151691, 4151701, 415230, 277 23, 277 29, 41742311, 55159, 55203, F01D 1100, F03B 1100
Patent
active
049900544
ABSTRACT:
A pump has a stationary seal housing with pressurized liquid and gas therein, a rotatable shaft disposed through the housing and operable for centrifugally producing rotation of the liquid within the housing, and a seal assembly disposed between the housing and rotatable shaft. The pump employs a device for venting from the housing to the exterior thereof the gas released from the liquid in the housing, such as by a drop in the pressure thereof, while blocking escape of the liquid therefrom. The venting device includes a body in the form of an externally threaded plug threadably mounted into an internally threaded bore in the seal housing, a flow facilitating passageway defined through the plug, extending between, and having respective entry and exit openings at, the respective inner and outer sides of the plug for providing communication between the interior and exterior of the seal housing, and a micro-porous membrane mounted to the plug across the entry opening of the passage for permitting gas flow while blocking liquid flow therethrough.
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Look Edward K.
Nguyen Hoang
Westinghouse Electric Corp.
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