A vacuum cleaner having airflow recirculation path for...

Details A vacuum cleaner having airflow recirculation path for... A vacuum cleaner having airflow recirculation path for...

A - Human Necessities

47

L

A47L 7/04 (2006.01) A47L 5/22 (2006.01) A47L 5/26 (2006.01) A47L 5/30 (2006.01) A47L 9/00 (2006.01) A47L 9/04 (2006.01) A47L 9/32 (2006.01)

Patent

CA 2391180

A vacuum cleaner system incorporating a closed loop airflow recirculation path for cooling a beater brush motor. A portion of clean, exhaust airflow created by a fan is diverted away from an exhaust port of the housing and directed into a flow path running alongside a portion of the housing. The airflow is used to pressurize a compartment within which a beater brush motor is disposed. A low pressure area created by the fan is used to assist in drawing the cooling exhaust airflow through the compartment, to thus form a closed loop cooling air recirculation system using only clean filtered exhaust airflow to maintain the beater brush motor cool during use.

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