Patent ID: 7276134
Filing Date: 2007-10-02
Classification: H02K,Y10T

Abstract:
1. In a generator having a stator bar including a plurality of strands, with one or more of the strands having passages for circulating water, in a pair of fittings surrounding and brazed about opposite ends of the bar forming a pair of fitting-to-strand brazed joints, a method of sealing one of the fitting-to-strand joints comprising the steps of, in sequence: (a) cleaning interior surfaces of the one fitting-to-strand joint; (b) applying an epoxy to the interior of the one fitting-to-strand joint; and (c) applying a vacuum to the interior of the one fitting-to-strand joint from the fitting at the opposite end of the bar and subsequently releasing the vacuum from the interior of the one fitting-to-strand joint to seal the epoxy to the surfaces of the joint.