Abstract: A fluid flow production and control system includes a variable speed pump defining a fluid flow path therethrough and a fluid flow path outlet, for operating at a speed determined by an input speed control signal. Also included is a pressure sensor for detecting the pressure of fluid at the outlet, and a flow rate sensor for detecting the flow rate of fluid at the outlet. One or more dimensional parameters of the flow path, such as the cross-sectional area, venting ports along the direction of the flow path, and the like, may be varied in response to a parameter control signal. A control unit coupled to the pressure sensor and flow rate sensor and responsive to detected pressures and flow rates supplies an input speed control signal to the pump and a parameter control signal to the dimensional parameter varying mechanism to thereby produce a selected flow rate and fluid pressure at the outlet.

Abstract: An integrated process control valve includes a fluid valve body having an inlet for receiving fluid, an outlet for discharging fluid, a fluid flow passage connecting the inlet and outlet, and a controllable throttling element which is moveable to selectively vary the flow rate of fluid through the fluid flow passage.