Bowed rotor prevention system using waste heat
First Claim
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1. A bowed rotor prevention system for a gas turbine engine using waste heat, the bowed rotor prevention system comprising:
- a thermoelectric generator system operable to produce electricity from waste heat of the gas turbine engine;
a bowed rotor prevention motor operable to drive rotation of turbomachinery of the gas turbine engine using the electricity produced by the thermoelectric generator system; and
a battery operable to store an excess portion of the electricity and regulate delivery of the electricity to the bowed rotor prevention motor.
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Abstract
A bowed rotor prevention system for a gas turbine engine is provided. The bowed rotor prevention system includes a thermoelectric generator system operable to produce electricity from waste heat of the gas turbine engine. The bowed rotor prevention system also includes a bowed rotor prevention motor operable to drive rotation of turbomachinery of the gas turbine engine using the electricity produced by the thermoelectric generator system.
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Citations
17 Claims
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1. A bowed rotor prevention system for a gas turbine engine using waste heat, the bowed rotor prevention system comprising:
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a thermoelectric generator system operable to produce electricity from waste heat of the gas turbine engine; a bowed rotor prevention motor operable to drive rotation of turbomachinery of the gas turbine engine using the electricity produced by the thermoelectric generator system; and a battery operable to store an excess portion of the electricity and regulate delivery of the electricity to the bowed rotor prevention motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A gas turbine engine comprising:
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a drive gear configured to be coupled to a spool of the gas turbine engine; and a bowed rotor prevention system comprising; a thermoelectric generator system operable to produce electricity from waste heat of the gas turbine engine; a bowed rotor prevention motor operable to drive rotation of turbomachinery of the gas turbine engine through the drive gear using the electricity produced by the thermoelectric generator system; and a battery operable to store an excess portion of the electricity and regulate delivery of the electricity to the bowed rotor prevention motor. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of bowed rotor prevention for a gas turbine engine using waste heat, the method comprising:
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generating electricity using a thermoelectric generator system coupled to the gas turbine engine; selectively applying the electricity to a bowed rotor prevention motor to drive rotation of turbomachinery of the gas turbine engine; storing an excess portion of the electricity in a battery; and regulating delivery of the electricity to the bowed rotor prevention motor through the battery. - View Dependent Claims (16, 17)
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Specification