| 摘要 |
A dishwasher in which the temperature of washing fluid and/or a load heating medium is elevated by the direction thereof into heat transferral contact with the electric drive motor that supplies the conventional pumping power. A split phase motor is employed having main and phase windings connected in parallel, and the entire motor is enclosed in an oil bearing jacket throughout which the oil is circulated over both the rotor and stator. A collar positioned near the rotor-stator gap directs oil flow in the gap reducing friction and wearing of insulation. Alternatively, a shaded pole type of induction motor can be used. Proper valving permits the wash fluid to flow to lower and/or upper spray arms and to a drain, and a flexible diaphragm or a reservoir provides for oil expansion in the jacket.
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