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US 4,727,931 AGranted
Air exchanging apparatus and method
OwnerErling Bernerinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for exchanging contaminated room air with fresh outdoor air and a method for operating same is disclosed. The apparatus includes a housing having a pair of substantially parallel air passageways sealed from one another and providing fluid communication between the room and the outdoors. A heat recovery rotor is disposed in the air passageways in an inclined orientation.
Claims1
A method for reducing the static pressure loss across a heat recovery rotor of an air exchanging apparatus in which incoming air enters the apparatus in a substantially horizontal stream, said method comprising the step of:
- inclining the plane of rotation of said rotor so that said plane and said incoming airstream form an acute included angle.
Dependencies are inferred from the claim text.