专利名称：Methods and apparatus for applying a compressive force to a core shroud
发明人：Jeffrey L. Thompson,Thomas Armine Lewis,Frank Ortega
申请号：US08/769470
申请日：19961220
reactor pressure vessel
公开号：US05712887A
公开日：
19980127
专利内容由知识产权出版社提供
摘要：Methods and apparatus for maintaining a compression force in a reactor pressure vessel (RPV) of a nuclear reactor are described. In one embodiment of the apparatus, a spring assembly facilitates applying compression force on the shroud head. The spring assembly, in one embodiment, includes two trusses and two torsion bars. The torsion bars extend between the trusses and are connected at opposite ends to the trusses. Each truss includes a truss support member, a hooking element, and a torsion converter element. The truss support member is configured to rest on the shroud head flange. The hooking element is pivotally coupled to the truss support member, and includes a hook adjacent a guide rod. The torsion converter element is coupled to the hooking element, and is vertically movable with respect to the truss support member. The converter element has two ends, each end splined to one of the torsion bars so that vertical movement of the converter element drives, e.g., rotates, the torsion bars.
申请人：GENERAL ELECTRIC COMPANY
代理机构：Armstrong, Teasdale, Schlafly & Davis
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