Gas turbine with wired shaft forming part of a generator/motor assembly
AssigneePratt & Whitney Canada Corp.
InventorEnzo Macchia
Life of this patent
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Abstract
A gas turbine engine including an electrical assembly operable as at least one of an electric motor and a generator, with an electromagnetic rotor formed in part by a portion of one of a main shaft concentrically and drivingly connected to at least one turbine rotor and a tower shaft directly driven by the main shaft and extending generally radially therefrom.
Claims16
A gas turbine engine having a compressor section and a turbine section, comprising:
- a first shaft being one of a main shaft having at least one turbine rotor of the turbine section concentrically directly mounted thereto and a tower shaft directly driven by the main shaft and extending generally radially therefrom;
- an electrical machine assembly having a rotor and a stator, the rotor coaxially secured to the first shaft for rotation therewith, the rotor including at least one field winding for conducting electrical current therein, the stator having a plurality of permanent magnets disposed adjacent an outer periphery of the rotor, the rotor and stator cooperating to provide in use a magnetic circuit surrounding the at least one winding for conducting magnetic flux around the at least one winding;
- and
- an electrical connection between the rotor winding and at least one of a power source and a power distribution system.
A gas turbine engine comprising a first shaft being one of a main shaft having at least one turbine rotor directly and concentrically mounted thereto and a tower shaft directly driven by the main shaft and extending generally radially therefrom, and an electrical assembly operable as at least one of an electric motor and a generator, the electrical assembly including an electromagnetic rotor, the electromagnetic rotor being formed in part by a portion of the first shaft.
Dependencies are inferred from the claim text.