US Patent 7178264 Washing machine with a drying device

A washing machine includes a water tub for accommodating wash water therein; a drum rotatably installed in the water tub; and a drying device for supplying hot air into the drum. The drying device includes a blower unit for forcing air to flow; a hot air supply duct for generating the hot air, the hot air supply duct having a heater therein and being connected to the blower unit; and at least one hot air jetting portion for jetting the hot air generated by the hot air supply duct into the drum, each of the hot air jetting portions having a hot air supply line for guiding a flow of the hot air and a plurality of nozzles connected to the hot air supply line to communicate with the hot air supply line.