Patent ID: 7316261
Filing Date: 2008-01-08
Classification: F23L,F24F,Y02B,Y02E

Abstract:
1. A ventilating device comprising: a housing having an outdoor air passage and an indoor air passage; a shaft rotatably supported by the housing, the shaft being rotatable about an axis which is substantially perpendicular to a direction of an air flow flowing in at least one of the outdoor air passage and the indoor air passage; and a plurality of heat exchanging elements mounted around an outer circumferential surface of the shaft, the heat exchanging elements being rotatable on the shaft by the air flow to exchange heat between air in the outdoor air passage and air in the indoor air passage, wherein a hub is formed at an outer circumferential surface of the shaft, in which an inner surface of the heat exchanging elements is mounted, wherein each of the heat exchanging elements has substantially a same curved shape.