Flow control

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United States of America Patent

PATENT NO 9777733
SERIAL NO

14321639

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A pumping system for at least one aquatic application comprises a motor coupled to a pump and a controller in communication with the motor. The controller may be adapted to determine a first motor speed, determine a present flow rate using curves of speed versus flow rate for discrete power consumptions, generate a difference value between the present flow rate and a reference flow rate, and/or drive the motor at a second motor speed based on the difference value until reaching a steady state condition.

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Patent Owner(s)

  • DANFOSS DRIVES A/S;PENTAIR WATER POOL AND SPA, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berthelsen, Lars Hoffmann Kolding, DK 49 2248
Kjaer, Gert Soenderborg, DK 25 1281
Lungeanu, Florin Egersund, DK 25 1372
Stiles,, Jr Robert W Cary, US 57 1560
Westermann-Rasmussen, Peter Soenderborg, DK 19 1100

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