Patent ID: 8561672

Claim:
A regenerative heat exchanger for heat exchange of gaseous media comprising: a cylindrical heat storage body that comprises a plurality of radially extending sector walls, wherein two respectively adjacent sector walls delimiting a sector and in each sector at least two heat storage chambers being provided which are arranged behind one another in a radial direction of the cylindrical heat storage body, can be flowed through by the gaseous media and comprise openings for inflow and outflow of the gaseous media in an area of face sides of the cylindrical heat storage body; and at least one radial seal which is arranged on a face side of the heat storage body, arranged to separate streams of the gaseous media and forms a cover surface for the openings of the at least two heat storage chambers, with the at least one radial seal and the cylindrical heat storage body being twistable relative to each other and with the at least one radial seal being arranged to fully cover in an alternating manner all heat storage chamber openings on the one face side during an operation, wherein the at least one radial seal is arranged in such a way that of the at least two heat storage chambers of a sector which are arranged radially behind one another the radial seal at most partly covers the opening of at least one heat storage chamber in any rotational position of heat storage body and radial seal relative to one another.