Axial turbine flowmeters

G - Physics – 01 – F

Patent

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73/125, 73/137

G01F 1/10 (2006.01) G01F 1/12 (2006.01)

Patent

CA 1177673

- 9 - ABSTRACT Improvements in axial turbine flowmeters In order to compensate the hydrodynamic pressure on the turbine of a flowmeter, means are provided to create a zone of reduced pressure of constant value upstream of the turbine hub, together with means for creating a zone of pressure, on the downstream face of the hub, varying in a defined manner as a function of the axial position of the turbine. The pressure difference thus created on either side of the turbine hub produces a reaction force tending continuously to balance the hydrodynamic pressure of the fluid whatever the flow rate. The invention is particularly applicable to high flow rate water meters.

412488

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