Dishwasher incorporating a pump prime sensing system for managing a filtration system
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United States of America Patent
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N/A
Issued Date -
Oct 26, 2006
app pub date -
Apr 25, 2005
filing date -
Apr 25, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pump priming sensing system for managing a filtration system is provided. The sensing system is capable of monitoring the state of the motor that operates the pump in a dishwasher to determine if the pump is receiving enough water to operate at a normal torque level. A filter is provided above the pump inlet to the pump. When a mixture of water and air is received through the pump inlet, the torque level falls. The motor transmits this decrease in torque level to a controller, which activates a filter cleaning system to clean the filter of soil/food/debris loosed from the dishes being cleaned in the dishwasher. Once the filter has been cleaned, normal operation of the dishwasher is resumed with the pump operating at a normal torque level.
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