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High speed turbogenerator for power recovery from fluid flow within conduit

  • US 4,555,637 A
  • Filed: 07/26/1982
  • Issued: 11/26/1985
  • Est. Priority Date: 07/26/1982
  • Status: Expired due to Fees
First Claim
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1. A power recovery system for obtaining electrical power from a flowing fluid, said system comprising:

  • a conduit through which a fluid passes of a predetermined minimum flow and pressure;

    a restriction means in said conduit forming a flow path of reduced area for the fluid,a high speed turbogenerator comprising an electrical generator, said electrical generator having a rotating shaft and a pair of bearings, said shaft having one end thereof extending outwardly from one of said bearings, and a radial inflow expander wheel directly affixed to the extended end of said shaft,said high speed turbogenerator positioned entirely within said conduit and having said expander wheel adjacent said restriction means such that fluid passing through said restriction means causes rotation of said expander wheel at a speed of about 6,000 rpm to about 32,000 rpm and with a reduction in pressure,means to pass electrical wiring carrying current from said high speed turbogenerator through said conduit to a utilization means external of said conduit.

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