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Unitary fluid flow production and control system

  • US 5,307,288 A
  • Filed: 06/07/1991
  • Issued: 04/26/1994
  • Est. Priority Date: 06/07/1991
  • Status: Expired due to Term
First Claim
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1. A fluid flow production system comprising(a) a conduit,(b) a variable speed pump for developing flow of a fluid in the conduit, the rate of said flow being variable in response to a control signal,(c) means coupled into the flow developing means for selectively varying one or more geometric parameters of the flow developing means in response to a geometry determining signal, capable of independently varying the flow rate and fluid pressure in the conduit,(d) flow rate sensing means disposed in the conduit for producing a signal representing the flow rate in the conduit,(e) fluid pressure sensing means disposed in the conduit for producing a signal representing the fluid pressure in the conduit, and(f) manually settable control means responsive to said flow rate signal and fluid pressure signal for producing a control signal and geometry determining signal for supply to the variable speed pump and geometry varying means respectively to cause development of a desired flow rate and fluid pressure in the conduit.

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