Steam generation in a dishwasher
First Claim
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1. A dishwasher comprisinga dishwashing tub;
- an immersion heater disposed at a lower section of said dishwashing tub for heating up water and generating steam;
a heater cover for substantially surrounding said immersion heater, said heater cover having a bottom-free end portion and an upper free end portion;
said bottom free end portion and the bottom wall of the dishwashing tub defining a gap therebetween for providing communication between said immersion heater and said dishwashing tub, external of said heater cover;
said upper free end portion of said heater cover providing communication between said immersion heater and the upper section of said dishwashing tub.
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Abstract
A dishwasher comprising a dishwashing tub, a liquid circulation pump, and an immersion heater disposed at a lower section of the dishwashing tub. The immersion heater is covered by a heater cover which includes a bottom free end and an upper free end. When the liquid circulation pump and the immersion heater are energized, warm liquid is circulated through the bottom free end of the heater cover. When only immersion heater is energized, the liquid disposed in the heater cover is heated up to generate the steam through the upper free end of the heater cover.
65 Citations
13 Claims
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1. A dishwasher comprising
a dishwashing tub; -
an immersion heater disposed at a lower section of said dishwashing tub for heating up water and generating steam; a heater cover for substantially surrounding said immersion heater, said heater cover having a bottom-free end portion and an upper free end portion; said bottom free end portion and the bottom wall of the dishwashing tub defining a gap therebetween for providing communication between said immersion heater and said dishwashing tub, external of said heater cover; said upper free end portion of said heater cover providing communication between said immersion heater and the upper section of said dishwashing tub. - View Dependent Claims (2, 3)
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4. A dishwasher comprising
a dishwashing tub; -
an immersion heater disposed at a lower section of said dishwashing tub for heating up water and generating steam; a heater cover for substantially surrounding said immersion heater said heater cover having a bottom free end portion and an upper free end portion; and a circulation pump operatively associated with said dishwashing tub for creating liquid flow through said immersion heater, wherein said immersion heater warms up the liquid disposed in said dishwashing tub when said circulation pump is energized, and generates steam through said heater cover when said circulation pump is not energized. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification