Patent ID: 8689463
Filing Date: 2014-04-08
Classification: D06F,F26B

Abstract:
1. A clothes drying apparatus, comprising: a) a clothes dryer having a frame that supports a drying chamber having an interior for containing clothes to be dried; b) a lint filtration housing mounted on the frame, the lint filtration housing having a two part interior that includes an outer part and an inner part that contains a filter for removing lint from a dryer exhaust air flow stream; c) the housing having a channel for transmitting heated exhaust air from the drying chamber to the housing interior inner part; d) an ambient air supply that enables ambient air to be added to the filtration housing interior outer part; e) the housing being shaped to create an annular vortex within the filtration housing interior externally of the filter; f) a flow line that transmits preheated air from the filtration housing interior to the inner part of the dryer interior; and g) wherein heat transfer from the inner part to the ambient air in the outer part is via a baffle wall which is heated by the exhaust air in the inner part.