Regenerator with a rotating regenerative heat exchanger

Regenerator with a hollow cylindrical heat exchange roller turning about an axis of rotation, within a housing said heat exchange roller having a jacket of heat carrier material for flow through by a flow medium emitting heat and a flow medium receiving heat, said heat carrier material comprising lamellas arranged in the roller wall to form radial flow-through gaps, said housing having a partition wall within the roller for providing separate flow regions, said flow media passing twice through said regions by substantially radial passages through said jacket transverse to the axis of rotation of said heat exchange roller, channel stubs connected to said housing, said channel stubs being shaped so that said flow media is continuously deflected in the channel stubs in flow direction for producing substantially low flow resistance to and from the housing, said housing being fully symmetrical relative to the axis of rotation of said heat exchange roller, said housing having four channel stub which are each angularly displaced from adjacent channel stubs by 90.degree., each two of said channel stubs forming inflow channels and outflow channels at each side of, said stubs terminating at said jacket at separated regions, said partition wall dividing the interior of said heat exchange roller into two symmetrical regions and being comprised of walls having cylindrically shaped portions, said inflow channels and outflow channels lying on opposite ones of said regions for radially guiding flow through said heat exchange roller, said connecting stubs being shaped to guide said flout media radially onto said heat exchange roller, system channels connectable to said stubs for supplying and removing flow media, two system channels for supplying and removing one flow medium being connectable in alignment and two other system channels for guiding the other flow medium extending at right angles to one another;

• said system channels forming a rectangular-shaped cross with the housing exterior side, said system channels corresponding to peripheral geometry and flow cross-section of all channel stubs.