Induced nuclear reactions: processes – systems – and elements – Seal arrangements – For nozzle
Patent
1994-03-09
1997-05-20
Jordan, Charles T.
Induced nuclear reactions: processes, systems, and elements
Seal arrangements
For nozzle
376203, 376205, 376234, 376239, G21C 1300
Patent
active
056319363
ABSTRACT:
An omega seal (32) between a housing (24) having a circumferential omega lip (38) including a free end, and a reactor vessel nozzle (22) having a complimentary omega lip (40) including a free end. A semi-rigid, annular seat member (60) is placed within one of the lips, and the housing is positioned in vertical alignment with the nozzle so that the free end of the housing lip and the free end of the nozzle lip are juxtaposed, thereby forming an omega structure having a cavity (44) occupied by the seat member, a gap (42) between the free ends of the lips, and an outer surface (47,49) on either side of the gap. A semi-rigid ring (46) is positioned in conforming relation to the outside surface of the omega structure. A compressive force is applied and maintained on the exterior of the seal ring, thereby extruding a portion of the ring into the gap. In essence, the weldment which fills the gap in the conventional technique, is replaced in accordance with the present invention, by a semi-rigid ring under compression, which extrudes into and fills the gap.
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Blercz Witold R.
Martin Kenneth A.
Theroux John F.
Wivagg Adrian P.
Chelliah Meena
Combustion Engineering Inc.
Jordan Charles T.
Mulholland John H.
Ristas L. James
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