PUMPING SYSTEM CONTROL
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United States of America Patent
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Issued Date -
Mar 26, 2015
app pub date -
Sep 17, 2014
filing date -
Sep 26, 2013
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Abstract
A method and a control arrangement are disclosed to measure a total flow rate through a pump device before a pump pressure or rotational speed change; and to change at least one of: the pump pressure by a predetermined pressure step or the pump rotational speed by a predetermined rotational speed step. The arrangement can measure a total flow rate through the pump device after the pump pressure or rotational speed change; and determine a need for a further pump pressure or rotational speed change step based on total flow rate measurements carried out before and after the pump pressure change.
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