US 4,473,108 AGranted

Heat exchangers

AssigneeFlakt Aktiebolag

InventorsLennart Jansson, Stellan Akesson, Harry Waermo

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Abstract

A heat exchanger for the extraction and re-use of heat and/or moisture from gas flows comprising: a housing (3) forming a duct section for gas flows; a rotor (7) which has a plurality of air passages extending therethrough; and a guide arrangement (9, 10, 11) for carrying the rotor (7), which arrangement is movable laterally of the housing (3) to carry the rotor (7) between an inserted position and an at least partially extracted position. A drive (21) for driving the rotor (7) can be movable jointly with said rotor (7). In an expedient embodiment, the rotor bearing is located, optionally together with the drive, on a support member (10, 11) which is stiff against both torsion and bending and which is movable on guide rails. This support member extends expediently by means of two carrying members (10) next to the two major faces of said rotor (7), which are movable on said rails in the housing (3).

Claims9

Dependent claims

A heat exchanger for the extraction and reuse of heat and/or moisture from gas flow comprising:

a housing forming at least one duct section for gas flow;
a rotor which has a plurality of air passages extending therethrough, said rotor having a plurality of parts, in the operative position of said rotor, each part adapted to register with said duct section in sequence upon rotation of said rotor, so that the gas flow flows through the passages in said registering part of the rotor;
bearings mounting said rotor for rotation in said housing so as to displace said registering part out of registry with said duct section and another of said parts into registry with said duct section, drive means to rotate said rotor and displace said rotor parts;
and a guide assembly carrying the rotor and the rotor bearings, which assembly is movable laterally of the housing to carry the rotor between its operative position and an inoperative position in which said rotor is a least partially extracted from said housing, said guide assembly including a movable frame surrounding and supporting said rotor and said bearings, said housing having support means receiving said frame and affording said lateral movement of the assembly.

1 more element

Dependencies are inferred from the claim text.