Electronic room air cleaner with variable speed motor

Details Electronic room air cleaner with variable speed motor Electronic room air cleaner with variable speed motor

1998-04-17

2000-05-23

Joyce, Harold

Gas separation: apparatus

With control means responsive to sensed condition for...

55473, B03C 300

Patent

active

060661941

ABSTRACT:
An apparatus and method for using a programmable variable speed motor to indicate a clogged filter while providing a constant airflow acrcss a wide range of restrictions. A motor has speed and airflow parameters and a built-in constant airflow regulator. A blower unit is connected to the motor to draw air from the inlet to the outlet. A filter reduces airborne particles as air is forced from the inlet to the outlet by operation of the motor and blower. A control system adjusts the airflow parameter of the motor based on the motor speed and environmental conditions such as light and motion. If an electronic air cleaner filter is employed, a discharge counter counts the frequency of pops occurring across the electrodes of that filter. The control system adjusts the voltage across those electrodes based on the discharge counter values.

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The Trane Company, "Perfect Fit.TM. Air Cleaner", Pub. No. 22-8650-31, Feb. 1998.

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