Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having... – For shaft sealing – packing – lubricating or bearing means
Patent
1975-03-17
1976-12-28
Croyle, Carlton R.
Rotary kinetic fluid motors or pumps
With lubricating, sealing, packing or bearing means having...
For shaft sealing, packing, lubricating or bearing means
F01D 1110
Patent
active
039998827
ABSTRACT:
The improved flushing and cooling system of this invention includes a pumping ring seal located at each end of the pump with the seal located adjacent to the discharge being in fluid communication with a pressure-reducing device in the pump. The pressure-reducing device is also connected by means of a bypass conduit with the seal located adjacent the pump inlet and with the pump inlet itself. A flow control orifice member is located adjacent the pressure-reducing device and is arranged to control flow from the by-pass conduit into and out of the pumping ring seal that is located adjacent the pump discharge. A second flow control orifice member is located adjacent the pump inlet and functions to control the flow into and out of the seal located adjacent the pump inlet. The arrangement of the system is such that the fluid passing through the pump is utilized to cool and flush both of the seals and to maintain the seals at substantially the same pressure.
REFERENCES:
patent: 1733416 (1929-10-01), Lebesnerois
patent: 1737870 (1929-12-01), Telfer
patent: 2738996 (1956-03-01), Anderson
patent: 3128713 (1969-04-01), Nechinc
patent: 3257957 (1966-06-01), Tracy
patent: 3746350 (1973-07-01), Mayer et al.
Casaregola L. J.
Croyle Carlton R.
Dresser Industries Inc.
Hazelwood J. N.
Van Winkle R. L.
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