Patent ID: 7287536
Filing Date: 2007-10-30
Classification: A47L,H05B

Abstract:
1. In a dishwasher having a dishwashing compartment and a pump fluidically connected to the dishwashing compartment for channeling liquid to the dishwashing compartment, the pump disposed outside the dishwashing compartment, and including a pump housing compartment, and including a pump housing defining an interior and housing a motor and an impeller, the pump housing defining an inflow conduit through which dishwashing liquid flows out of the dishwashing compartment and into the pump housing into contact with the impeller, a heater for heating dishwashing liquid, the heater comprising: a heating device disposed at least partially outside the dishwashing compartment on the pump housing, the heating device defining a heat transfer surface extending into heat-conducting contact with the interior of the pump housing and any dishwashing liquid therein, the heating device being operable to provide heat, via its heat transfer surface providing heat-conducting contact with the interior of the pump housing, to the dishwashing liquid flowing through the pump housing such that a substantial portion of the heat that is acquired by the dishwashing liquid is imparted thereto by the heating device.