Patent ID: 7850427
Filing Date: 2010-12-14
Classification: F04D

Abstract:
1. A turbomachine comprising: a casing having an interior chamber, an opening into the interior chamber, and an annular wall section extending about the opening and having an outer circumferential surface, the casing having opposing axial ends and a central bore extending between the two ends, the casing bore providing the casing chamber; and a closure device engageable with the casing and including a body having an inner circumferential overlap surface at least partially defining an opening, the closure body being configured to receive at least a portion of the casing annular wall section within the body opening such that the closure body overlap surface extends about the annular wall section outer surface and the closure device substantially closes the casing opening, the closure device body including a cylindrical body with a centerline and an integral annular ledge extending circumferentially about the axis, the body ledge having an inner circumferential providing the overlap surface, the closure device body being sized to be disposeable within a portion of the casing bore such that the entire closure body is located between the first and second casing ends.