| 摘要 |
A thermal regenerator having a rotary disc-type matrix enclosed in a casing which is traversed by two segregated flows of gaseous heat-exchanging fluids; and which is equipped with a sealing assembly which comprises: an endless counterface sealing pad that makes rubbing contact with the corresponding face of the matrix; a support ring carrying the sealing pad; a flexible sealing curtain of very thin metal secured to the support ring so as to be hingeable about a corner thereof, and extending obliquely across a gap existing between the support ring and the casing; a resilient backing member of sheet metal thicker than the curtain and secured to the support ring, which backing member supports the curtain and acts as a weak spring to maintain the pad in contact with the matrix; and seal-locating means permitting freedom of movement of the pad in a plane normal to the face of the matrix, and effective also to resist the torque applied frictionally to the pad by the rotation of the matrix.
|
