Determination of pulley ratio of a belt-drive blower

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United States of America Patent

PATENT NO 11150162
SERIAL NO

16885875

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Importance

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Abstract

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An HVAC system includes a blower. The blower includes a driven pulley and a motor with a driver pulley. A motor drive supplies electrical power to the motor. A controller receives a benchmark rate of the flow of air provided by the blower and a corresponding benchmark output current of the motor drive associated with operation of the blower at a test condition. A benchmark input power corresponding to the benchmark output current is determined based on a predetermined relationship between input power and output current for the motor drive. A ratio of the benchmark rate of the flow of air provided by the blower to the benchmark input power is determined. The controller determines a pulley ratio for the blower based on this ratio. The pulley ratio corresponds to the ratio of a diameter of the driven pulley to a diameter of the driver pulley of the blower.

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Patent Owner(s)

  • LENNOX INDUSTRIES INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goel, Rakesh Irving, US 120 458
Wang, Shiliang Dallas, US 20 133

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