F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 49/06 (2006.01) E04H 4/12 (2006.01) F04B 17/03 (2006.01)
Patent
CA 2528580
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.
Berthelsen Lars Hoffmann
Cox Everett
Hansen Arne Fink
Harvest Niles Ole
Hruby Daniel J.
Danfoss Low Power Drives
Pentair Water Pool And Spa Inc.
Sim & Mcburney
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