Ventilation system

Details Ventilation system Ventilation system

2006-07-11

2006-07-11

Duong, Tho (Department: 3753)

Heat exchange

Regenerator

Movable heat storage mass with enclosure

C165S059000, C165S054000

Reexamination Certificate

active

07073566

ABSTRACT:
An apparatus for ventilation systems includes an element for the transfer of heat from warm exhaust air (taken from inside a building) to cooler exterior fresh air which is drawn into the building. The present invention in particular provides an apparatus whereby, during a defrost cycle, interior air may circulate through both of the fresh air and exhaust air paths for delivery back into the building, i.e. the warm interior air, used as defrost air, may be able to circulate from the interior of the building into the ventilation apparatus and back to the interior of the building. The apparatus can thus use interior air as defrost air while diminishing or avoiding the creation of a negative air pressure in the building.

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patent: 53006951 (1978-01-01), None

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