Washing machines
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Nov 11, 2015
filing date -
Nov 4, 2005
priority date (Note) -
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Abstract
The present invention relates to a washing machine (7) and pump (8) for a washing machine (7). The pump is driven by a brushless DC motor (38). The pump can be controlled to improve the operation of the washing machine. In one aspect the invention comprises a washing machine (7) with a variable speed pump (8) for pumping out wastewater, a controller (50) for controlling the speed of the pump and a sensor (10) for determining the flow-rate of water being pumped from the washing machine, wherein the controller (50) controls the speed of the pump to maintain the flow-rate at a desirable level.
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