Patent Number: 8,792,608

Title: BWR jet pump inlet-mixer main wedge with inserts

Abstract: Disclosed are various wedges that may be used in a restrainer bracket of a jet pump assembly. The jet pump assembly may include a restrainer bracket having an upper bracket and a lower bracket connected to an inlet mixer. A wedge may be provided between the upper bracket and the lower bracket and a wedge rod may pass through a slotted hole of the wedge. Ends of the wedge rod may be attached to the upper and lower brackets. The restrainer bracket may further include a yolk-like member which surrounds the inlet mixer and is connected to a riser pipe. The wedge may include an inclined surface which is configured to engage with a restrainer bracket pad of the yolk-like member. The wedges may further include inner curved surfaces which contact the wedge rod and the inner curved surfaces may be part of an insert that may be inserted in the wedge.

Inventors: Sprague; Robin D. (Wilmington, NC), DeFilippis; Michael S. (Wilmington, NC)

Assignee: GE-Hitachi Nuclear Energy Americas LLC

International Classification: G21C 15/00 (20060101); G21C 19/28 (20060101); F16B 13/04 (20060101); F16B 19/00 (20060101)

Expiration Date: 7/29/12018