Recirculation control in a washing machine

Details Recirculation control in a washing machine Recirculation control in a washing machine

2006-11-06

2010-10-12

Barr, Michael (Department: 1711)

Textiles: fluid treating apparatus

Machines

Single tub and automatic sequential operation mechanism

C008S158000, C068S012010, C068S012230

Reexamination Certificate

active

07810362

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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European Search Report Dated Mar. 7, 2007; Six (6) Pages.
International Search Report Completed on Apr. 2, 2007; Nine (9) Pages.

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