Reactor coolant pump sealing surfaces with titanium nitride coating
Patent
·
OSTI ID:7261823
This patent describes, in a pump having a shaft and a housing containing pressurized fluid, a rubbing-type sealing assembly for sealably and rotatably mounting the shaft within the housing. The sealing assembly comprising: an annular runner circumscribing and mounting around the shaft for rotation therewith; an annular seal ring circumscribing and mounted within the hosing in non-rotational relationship thereto. The runner and seal ring having surfaces facing and in rubbing contact with one another; and a coating of titanium nitride incorporated on at least one of the surfaces. The runner and seal ring surfaces being composed of stainless steel.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA
- Patent Number(s):
- US 4871297
- OSTI ID:
- 7261823
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
COATINGS
COOLING SYSTEMS
ENERGY SYSTEMS
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
PROTECTIVE COATINGS
PUMPS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
SEALS
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
220200* -- Nuclear Reactor Technology-- Components & Accessories
COATINGS
COOLING SYSTEMS
ENERGY SYSTEMS
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
PROTECTIVE COATINGS
PUMPS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
SEALS
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS