PUMP DEVICE WITH A CENTRIFUGAL PUMP AND A MIXING UNIT
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Feb 7, 2023
filing date -
Feb 7, 2023
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Abstract
A pump device (1) comprises a centrifugal pump (2) and a mixing unit (4) in which two fluids are mixed. The mixing unit (4) comprises a flapper valve (10) configured to move between a first and a second position in which it closes a first inlet (7) and a second inlet (8) of the mixing unit, respectively. At least one of the inlets houses a movable piston (13) which is biased towards being in contact with the flapper valve. The piston has at least one piston channel (15) or annular space (23) through which the fluid flows in to the mixing unit in a controlled manner.
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