초록 ▼

Disclosed is a ventilator including a heat exchanger having a fresh air channel and a stale air channel. The respective channels are pneumatically isolated, but, are arranged in contiguous and interwoven fashion such that incoming fresh air may pass in countercurrent heat exchange relation to the ou

Disclosed is a ventilator including a heat exchanger having a fresh air channel and a stale air channel. The respective channels are pneumatically isolated, but, are arranged in contiguous and interwoven fashion such that incoming fresh air may pass in countercurrent heat exchange relation to the outgoing stale air twice. The fresh air channel has an inlet in communication with air external to the ventilated space and an outlet in communication with the ventilated space. The stale air channel has an inlet in communication with the ventilated space and an outlet in communication with the external space. The heat exchanger features heat transfer means in communication with the fresh and stale air channels which is formed by a septum having a first surface in heat exchange relation with the fresh air channel and a second surface in heat exchange relation with the stale air channel. The septum is wrapped in successive spaced turns to form alternating sections of the fresh air and stale air channels. The resulting combination of channel sections has a generally elliptically shaped profile, and includes two pseudo foci at one of which the fresh air outlet is located and at the other of which the stale air inlet is located. The fresh air inlet and the stale air outlet are locates at the other respective channel ends.

대표청구항 ▼

A ventilator for replacing stale air with fresh air, and for exchanging heat between the stale air replaced and the fresh air, the ventilator comprising: a fresh air inlet for receiving fresh air; a fresh air outlet for exhausting fresh air; a stale air inlet for receiving stale air; a stale air out

A ventilator for replacing stale air with fresh air, and for exchanging heat between the stale air replaced and the fresh air, the ventilator comprising: a fresh air inlet for receiving fresh air; a fresh air outlet for exhausting fresh air; a stale air inlet for receiving stale air; a stale air outlet for exhausting stale air; and a heat exchanger for exchanging heat between the stale air and fresh air; wherein the fresh air inlet and outlet and the stale air inlet and outlet each include duct means for coupling the respective inlets and outlets to the heat exchanger such that fresh air entering and exiting the exchanger is segregated from stale air entering and exiting the exchanger and wherein the exchanger includes conduit means connected to the duct means for establishing a continuous fresh air channel and a continuous stale air channel, the fresh air channel being pneumatically isolated from the stale air channel, and heat transfer means for exchanging heat between air in the fresh air channel and air in the stale air channel, the fresh air channel and the stale air channel being wound one upon the other and upon at least a portion or a ventilator inlet duct means associated with one channel and at least a portion of a ventilator outlet duct means associated with the other channel such that air in the fresh air channel flows in a direction countercurrent to the direction of air flowing in the stale air channel over a majority of the stale air channel length, and such that air in the fresh air channel passes in heat exchange relation to the stale air channel twice.