Abstract: A segmented seal is disposed between a rotary heat-retaining body and its housing, the housing defining a hot flow path and a cool flow path through the housing and intersecting the heat retaining body, and the heat retaining body being movable to transfer heat from one flow path to the other. A plurality of serially-connected seal segments are attached to one of the body and the housing, the seal segments each extending along a seal line and overlapping one another along the seal line, the seal segments bearing against the other of the body and the housing to effect a seal.

Abstract: A sealing arrangement for an air preheater for a fuel burning device includes both radial and circumferential seals. The radial seals include a set of flexible, foil-like metal sealing strips coupled to semi-rigid radial seal plates. The semi-rigid radial seal plates, in turn, are coupled to diaphragm members which divide a generally cylindrical drum of the air preheater into sectors, each sector containing a set of heat exchanger elements, such as parallel plates or fins. To effect sealing, the foil-like metal radial sealing strips will engage and wipe across sector plates on a housing surrounding the drum. The radial sealing strips are completely unobstructed from cantilevered yielding movement in a trailing direction to the full extent that the flexure characteristics of the radial sealing strips themselves permit. the circumferential sealing strips are also constructed of a flexible, thin, foil-like metal material.

Abstract: A sealing arrangement for an air preheater for a fuel burning device includes both radial and circumferential seals. The radial seals include a set of flexible, foil-like metal sealing strips coupled to semi-rigid radial seal plates. The semi-rigid radial seal plates, in turn, are coupled to diaphragm members which divide a generally cylindrical drum of the air preheater into sectors, each sector containing a set of heat exchanger elements, such as parallel plates or fins. To effect sealing, the foil-like metal radial sealing strips will engage and wipe across sector plates on a housing surrounding the drum. The radial sealing strips are completely unobstructed from cantilevered yielding movement in a trailing direction to the full extent that the flexure characteristics of the radial sealing strips themselves permit. The circumferential sealing strips are also constructed of a flexible, thin, foil-like metal material.