Patent ID: 9086305
Filing Date: 2015-07-21
Classification: G01F

Abstract:
1. A paddlewheel flow meter comprising: a housing having an internal through-flow bore passing therethrough on a flow direction axis, and an internal mounting bore extending into the housing on a mounting bore axis transverse to through-flow bore and opening into the through-flow bore; a rotor support body having inner and outer ends spaced apart along a longitudinal axis, a shaft-receiving bore in the rotor support body that lies transverse to the longitudinal axis thereof, a support shaft received in the shaft-receiving bore and a paddlewheel rotor installed on the support shaft for rotation about a rotational axis lying transverse to the longitudinal axis in a hollow rotor cavity of the rotor support body adjacent the inner end thereof, the rotor support body being arranged for removable receipt thereof in the mounting bore at an operational position in which the paddlewheel rotor reaches into the through-flow bore for driven rotation of the paddlewheel rotor by movement of flowable material through the through-flow bore; and a sensor unit arranged for removable receipt in the mounting bore at an installed position placing a rotational sensor of the sensor unit at a useful position operable to detect rotational motion of the paddlewheel rotor about the rotational axis; wherein the sensor unit and rotor support body are distinct units that are replaceable separately of one another, thereby enabling replacement of the sensor independently of the rotor, or vice versa, by replacement of only one of the sensor unit and the rotor support body.