Laundry machines and/or flow control systems and/or methods...

Details Laundry machines and/or flow control systems and/or methods... Laundry machines and/or flow control systems and/or methods...

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 11/00 (2006.01) D06F 33/02 (2006.01)

Patent

CA 2044994

The temperature or some other specific characteristic of a mixture of the two liquids in a mixing chamber (14) is controlled by a microprocessor (8) which controls the supply of power to solenoid actuated valves (10 and 11) to control the quantities of liquids admitted to the chamber (14) so that a desired temperature is achieved using a pulse width modulation control method. The pulse width modulation method requires only one microprocessor timer and provides a substantially constant supply of power to one valve while varying the power supplied to the other valve to control the temperature of the liquids.

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