Invention Grant
- Patent Title: Control algorithm of variable speed pumping system
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Application No.: US14325887Application Date: 2014-07-08
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Publication No.: US09605680B2Publication Date: 2017-03-28
- Inventor: Robert W. Stiles, Jr. , Lars Hoffmann Berthelsen , Ronald B. Robol , Everett Cox , Donald Steen , Kevin Murphy , Daniel J. Hruby , Peter Westermann-Rasmussen , Gert Kjaer , Nils-Ole Harvest , Christopher Yahnker , Walter Woodcock, Jr. , Einar Kjartan Runarsson , Arne Fink Hansen , Alberto Morando , Florin Lungeanu
- Applicant: Pentair Water Pool and Spa, Inc. , Danfoss Drives A/S
- Applicant Address: US NC Cary DK Graasten
- Assignee: Pentair Water Pool and Spa, Inc.,Danfoss Drives A/S
- Current Assignee: Pentair Water Pool and Spa, Inc.,Danfoss Drives A/S
- Current Assignee Address: US NC Cary DK Graasten
- Agency: Quarles & Brady LLP
- Main IPC: G05D7/00
- IPC: G05D7/00 ; F04F5/00 ; F04B23/08 ; F04D15/00
Abstract:
A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust the flow rate indicative value toward a constant. A value indicative of flow pressure is determined and the motor is controlled to adjust the flow pressure indicative value toward a constant. A selection is made between flow rate control and flow pressure control. In another aspect, the pump is controlled to perform a first operation, and is operated to perform a second water operation. Control of operation of the pump to perform the first water operation is altered in response to operation of the pump to perform the second operation.
Public/Granted literature
- US20140322030A1 Control Algorithm of Variable Speed Pumping System Public/Granted day:2014-10-30
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