Patent ID: 6367311
Filing Date: 2002-04-09
Classification: F26B,G01M,H02K

Abstract:
A method for leakage testing a water-cooled stator having water channels, comprising the steps of:(a) drying the water channels, step (a) comprising the steps of (a-1) receiving compressed air into an air receiver, (a-2) conveying compressed air from the air receiver along a first flow path from the air receiver to the water channels of the stator, (a-3) heating the compressed air as it moves along the first flow path from the air receiver to the water channels, (a-4) receiving compressed air into the air receiver, and (a-5) conveying the compressed air from the air receiver along a second flow path from the air receiver to the water channels of the stator without heating the compressed air as it moves along the second flow path, at least a portion of the second flow path being different from the first flow path; and (b) conducting at least one of a pressure decay test and a vacuum decay test after the water channels are dried, wherein steps (a-4) and (a-5) are conducted before steps (a-1) to (a-3).