PUMP CONSTRUCTION
A pump which utilizes the fluid being pumped through it as its lubricating fluid is described. This is achieved by means of an improved bearing construction in a pump of the enclosed or canned rotor type. At the outlet end of the pump, adjacent to an impeller mechanism, there is a bypass which conveys some of the pumped fluid to a chamber at the inlet end of the pump. After this chamber becomes full, the pumped fluid passes through fixed orifices in the top of the chamber and exerts a thrust on the inlet end of the pump rotor. Lubrication of the rotor shaft is accomplished by passing the pumped fluid through a bypass at the outlet end of the rotor shaft. This bypass conveys Pumped fluid to a cooling means and then to grooves on the surface of the rotor shait, thus lubricating the shaft.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-007484
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2953993
- OSTI ID:
- 4116871
- Country of Publication:
- United States
- Language:
- English
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