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US 2020/0400035 A1Published application
Gas turbine induction system, corresponding induction heater and method for inductively heating a component
AssigneeSiemens Aktiengesellschaft
InventorsHarry Chohan, Sébastien Bouffard, Alexandre Malo, Hayden Smith
Life of this patent
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Abstract
An induction heater is employed with a gas turbine engine in order to heat a static component of the gas turbine engine. The heating of the static component is performed such that the clearance space between the static component and a rotating component remains constant during steady state conditions and transient conditions.
Claims20
A gas turbine engine induction system for inductively heating a component of a gas turbine engine comprising:
- a gas turbine engine having a longitudinal axis extending lengthwise through the center of the gas turbine engine;
- an induction heater located proximate to a static component of the gas turbine engine;
- a rotating component located radially inward from the static component, wherein there is a clearance space between the rotating component and the static component;
- and
- wherein the induction heater is adapted to heat the static component so as to maintain substantially the same clearance space between the static component and the rotating component during operation of the gas turbine engine.
2 more elements
An induction heater for a gas turbine engine comprising:
- a coil adapted to surround a static component of a gas turbine engine, wherein the gas turbine engine has a longitudinal axis extending lengthwise through the center of the gas turbine engine, wherein a rotating component is located radially inward from the static component, wherein there is a clearance space between the rotating component and the static component;
- and
- an electric component for transmitting electricity through the coil surrounding the static component, the transmission of electricity heats the static component so as to maintain substantially the same clearance space between the static component and the rotating component during operation of the gas turbine engine.
A method for inductively heating a component of a gas turbine engine comprising:
- inductively heating a static component, wherein the gas turbine engine has a longitudinal axis extending lengthwise through the center of the gas turbine engine, wherein the gas turbine engine has a rotating component located radially inward from the static component, wherein there is a clearance space between the rotating component and the static component;
- and
- starting and ceasing inductively heating of the static component so as to maintain substantially the same clearance space between the static component and the rotating component during operation of the gas turbine engine.
Dependencies are inferred from the claim text.