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US 2012/0233876 A1Published application
Dryer Heat Recovery system
OwnerKevin Weldon, Thomas Weldoninventors
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OwnerKevin Weldon, Thomas Weldoninventors
Estimating the term…
An improvement in a laundry dryer system using recovered waste heat from the hot air exhaust of the dryer to transfer that heat to the incoming ambient fresh air. A home laundry dryer in which both the fresh air entering a laundry drum and the air exhausted from the drum pass through thermal recovery ducting. The dryer heat recovery system has concentric ducting including a high temperature passage through which the exhaust air flows and a separate low temperature passage through which the entering air flows. Heat from the exhausted air is transferred from the high temperature passage to the entering air in the low temperature passage. This heat transfer lowers the energy required to raise the entering air to a desired drying temperature. The dryer ducting is designed to have an outer diameter equivalent to standard size ducting on home dryers.
A dryer heat recovery apparatus for a dryer comprising:
A clothes dryer heat recovery system comprising:
An method for modifying a conventional domestic dryer to recover lost heat energy, said dryer comprising a cabinet, said cabinet having existing ventilation inlet openings formed therein, a blower in said cabinet, a heater for heating ambient air drawn into said blower, a suction passage for communicating said heated air into a rotating drum, a substantially tubular exhaust duct for communicating said heated air from said cabinet to a discharge outlet for discharging the heated air outdoors,
Dependencies are inferred from the claim text.