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Auxiliary power source in an unducted fan gas turbine engine

  • US 4,936,748 A
  • Filed: 11/28/1988
  • Issued: 06/26/1990
  • Est. Priority Date: 11/28/1988
  • Status: Expired due to Fees
First Claim
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1. In an unducted fan gas turbine engine including first and second coaxially disposed rotors oriented for rotation about a longitudinal engine axis, a plurality of first propeller blades coupled to the first rotor and a plurality of second propeller blades coupled to the second rotor, the propeller blades providing thrust along the longitudinal axis, apparatus for converting power from the rotors into thrust transverse to the longitudinal axis of the engine comprising:

  • gear means coupled to the first and second rotors for providing power transverse to the longitudinal axis; and

    thrust means coupled to a said gear means for converting the transverse power into a thrust transverse to the longitudinal axis.

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