Hybrid Recirculating/Vented Tumble Dryer With Purposeful Fresh Air Inlet At Drying Chamber
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United States of America Patent
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Issued Date -
Feb 18, 2016
app pub date -
Aug 13, 2014
filing date -
Aug 13, 2014
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Abstract
A hybrid vented tumble dryer which includes a drying chamber such as a rotatable drum, a heater, a process air fan, a recirculation duct, and a process air circuit configured to recirculate process air through the dryer. The dryer may include first and second drum seal gaskets located between the drum and first and second bulkheads, respectively. In some embodiments, the recirculation duct is in closed fluid communication with the heater. In other embodiments, the process air circuit is configured such that substantially the only fresh air which enters the process air circuit enters directly into the drying chamber prior to passing through the heater, or such that substantially the only fresh air which enters the process air circuit enters the process air circuit, in an airflow direction of the process air moving through the process air circuit, after the heater and before an outlet of the drying chamber.
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