F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 12/00 (2006.01)
Patent
CA 2509571
A heat recovery ventilator defrost system utilizing a bypass section which supplies warm air in both channels of the heat exchanger to accelerate defrost, continue some ventilation of stale warm air, and recirculate a portion of the stale air flow, so as to warm incoming cold fresh air. When the system is in defrost mode, warm exhaust air to be expelled enters an exhaust inlet port and into an exhaust plenum. Because the air being exhausted (by way of the exhaust fan) through the exhaust plenum is under a positive pressure, the stale air will still be sucked out through exhaust passageway into discharge plenum, but also through the passive non-motorized bypass section into inlet plenum. Further, because fresh air continues to be drawn into inlet plenum, due to the positive pressure, the warm stale air which has passed through the bypass section (flap) into inlet plenum is then drawn through the heat exchanger along the inlet passageway into supply plenum, and out through supply port into the enclosure or dwelling. In this way, the heat recovery ventilators defrost system of the present invention supplies warm air in both channels of the heat exchanger.
Andrews Robichaud
Imperial Sheet Metal Ltd.
LandOfFree
Pressure sensitive bypass defrost system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure sensitive bypass defrost system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure sensitive bypass defrost system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1534186