Patent ID: 7410173
Filing Date: 2008-08-12
Classification: F01D,F05D,F16J

Abstract:
1. A brush seal for sealing a circumferential gap between a first machine component and a second machine component which is rotatable relative to the first machine component about a longitudinal axis, comprising: a bundle of seal bristles each having a first end and a second end, said first ends of said seal bristles being mounted to one of said first and second machine components and said second ends thereof extending in a direction toward the other of said first and second machine components; at least one shoe extending along one of said first or second machine components in a position to create a non-contact seal therewith, said at least one shoe preventing said second ends of said seal bristles from directly contacting either said first or second machine component; at least one spring element having radially spaced inner and outer bands, a first end of each of said inner and outer bands being connected to one of said first and second machine components and a second end of said inner and outer bands being connected to a first stop, said first stop being connected to said at least one shoe, at least a portion of said first stop being received within a first recess formed in one of said first and second machine components and being radially movable within said first recess in such a way as to limit the extent of radial movement of said at least one shoe.