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Single shaft microturbine power generating system including turbocompressor and auxiliary recuperator

  • US 6,170,251 B1
  • Filed: 12/19/1997
  • Issued: 01/09/2001
  • Est. Priority Date: 12/19/1997
  • Status: Expired due to Fees
First Claim
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1. A microturbine power generating system for producing power comprising:

  • a primary compressor for providing pressurized air during operation of the system;

    an auxiliary compressor for further compressing a portion of pressurized air bled off the primary compressor and supplying auxiliary air;

    means operably associated with said microturbine power generating system for combusting a mixture of fuel and a second portion of pressurized air from the primary compressor, thereby producing gaseous heat energy;

    an auxiliary recuperator for recovering heat from air compressed in the auxiliary compressor and supplying at least some of said heat to said second portion of pressurized air;

    a turbine for converting said gaseous heat energy into mechanical work, the mechanical work being used to drive the primary and auxiliary compressors; and

    a single gearless shaft connecting the turbine, the primary compressor and the auxiliary compressor in prestressed relation to allow the primary and auxiliary compressors to rotate in unison with the turbine and to thereby use the mechanical energy extracted by the turbine.

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