Patent ID: 6881029
Filing Date: 2005-04-19
Classification: F01D,F04D,F05D,Y02T

Abstract:
1. A casing supporting series of stationary blades having disposed between them series of blades that are movable in rotation about a longitudinal axis, the radially outer ends of said moving blades being close to the inside face of the casing, the casing comprising a main element and, at least facing one of the series of moving blades, an assembly comprising a plate made of a cellular material having tubular cells (or honeycombs) and a covering disposed on the face of the plate facing away from the blades so that said cells are open towards the blades, said covering being provided with holes that open out into cells of the plate, thereby forming open cells, said covering closing other cells of the plate, thereby forming closed cells, a cavity being formed between said plate and the inside face of said main element.