Patent ID: 8966780
Filing Date: 2015-03-03
Classification: D06F

Abstract:
1. A tumble dryer, comprising: a housing, said housing comprising an enclosable drying chamber, a heater mounted in said drying chamber, a gate disposed at one side of said drying chamber for access control and a tumbler rotatably mounted in said drying chamber for turning washing over and over; an intake pipeline extending from the outside of said housing to said drying chamber for guiding outside air into said drying chamber, said intake pipeline comprising an intake control valve controllable to open/close said intake pipeline; an exhaust pipeline extending from said drying chamber to the outside of said housing for guiding air out of said drying chamber to the atmosphere, said exhaust pipeline comprising an exhaust control valve controllable to open/close said exhaust pipeline and an exhaust fan mounted to a downstream end of the exhaust pipeline at an inner surface of the housing and adapted for drawing air out of the drying chamber; and an air-suction pipeline disposed in communication between said drying chamber and the space outside said drying chamber, said air-suction pipeline comprising a pipeline control valve controllable to open/close said air-suction pipeline and a pump controllable to pump air out of said drying chamber directly to the atmosphere and keep the drying chamber in a low pressure condition, wherein an upstream end of said air-suction pipeline is connected to the drying chamber, and a downstream end of said air-suction pipeline is connected to said exhaust pipeline between said exhaust control valve and said exhaust fan.