Patent ID: 9169934
Filing Date: 2015-10-27
Classification: F16K,G01N,Y10T

Abstract:
1. A method for switching a high pressure fluid, the method comprising: applying a fixed force between a planar surface of a rotor and a planar surface of a stator, the planar surface of the rotor having a fluidic channel therein and the planar surface of the stator having a first port to receive a fluid and a second port to provide the fluid, the rotor being coupled to a rotor shaft and configured to rotate about a shaft axis; and applying a control signal to an electrical or mechanical linear actuator coupled to the rotor to thereby generate a controllable force directed parallel to the shaft axis and between the planar surface of the rotor and the planar surface of the stator, the control signal being responsive to a rotational state of the rotor, a total force between the planar surfaces of the rotor and the stator being substantially equal to a sum of the fixed force and the controllable force.