Patent ID: 6224321
Filing Date: 2001-05-01
Classification: F01D,F05D,Y02T

Abstract:
A containment apparatus for containing fragments of a rotating centrifugal impeller resulting from a burst impeller within a housing, the centrifugal impeller including an annular impeller hub mounted for rotation about a longitudinal axis of rotation, the centrifugal impeller having a first outer radius from the axis of rotation, said impeller hub including an annular recessed portion defined in a downstream portion of the hub wherein the annular recessed portion has a second radius from the axis of rotation which is short relative to the first radius defining a radial groove, and containment means comprising an annular flange downstream of said impeller hub extending circumferentially adjacent said hub, said annular flange intermeshing with said annular groove for containing at least part of said hub by engaging said annular groove of the hub.