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Gas turbine engine power unit

  • US 5,182,904 A
  • Filed: 11/14/1991
  • Issued: 02/02/1993
  • Est. Priority Date: 12/14/1990
  • Status: Expired due to Fees
First Claim
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1. A gas turbine engine power unit comprising a gas generator, a plurality of heat exchangers to facilitate recuperative operation of said gas generator, a plurality of turbo-chargers adapted to boost the air supply to said gas generator, and a valve to receive the exhaust efflux of said gas generator and to direct said efflux to one of said heat exchangers and said turbochargers to drive said turbochargers, said valve comprising two circular cross-section ducts arranged coaxially with radially abutting faces, each of said radially abutting faces having apertures therein, said ducts being relatively movable between a first position in which said apertures are so aligned as to permit the passage of said exhaust efflux only to said heat exchangers, and a second position in which said apertures are so aligned as to permit the passage of said exhaust efflux only to said turbochargers to drive said turbochargers, said heat exchangers and turbochargers being located around the periphery of said power unit in circumferentially alternating relationship.

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