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US 11,767,772 B1Granted
Passively rotating a rotating structure of a gas turbine engine during transportation
AssigneePratt & Whitney Canada Corp.
InventorsLouis Brillon, Bruno Martin
Life of this patent
Estimating the term…
Abstract
A powerplant system is provided that includes a gas turbine engine system and an actuation system. The gas turbine engine system includes a rotating structure, a stationary structure and one or more bearings rotatably mounting the rotating structure to the stationary structure. The actuation system is configured to passively rotate the rotating structure about a rotational axis during transportation of the gas turbine engine system.
Claims17
A powerplant system, comprising:
- a gas turbine engine system including a rotating structure, a stationary structure and one or more bearings rotatably mounting the rotating structure to the stationary structure;
- and
- an eccentric mass attached to the rotating structure, the eccentric mass rotationally unbalancing the rotating structure about a rotational axis such that the rotational structure rotationally oscillates about a rotational axis during non-operational movement of the gas turbine engine system.
A method for a gas turbine engine system, comprising:
- arranging a mass with the rotating structure to imbalance the rotating structure about the rotational axis;
- transporting the gas turbine engine system from a first location to a second location, wherein the gas turbine engine system is non-operational during the transporting;
- and
- rotating a rotating structure within the gas turbine engine system about a rotational axis using energy from movement of the gas turbine engine system during the transporting, wherein the rotating structure is rotated using the mass.
1 more element
A powerplant system, comprising:
- a gas turbine engine system including a rotating structure, a stationary structure and one or more bearings rotatably mounting the rotating structure to the stationary structure;
- and
- an actuation system comprising a spring, the spring configured to provide controlled rotational oscillations of the rotating structure about a rotational axis, wherein the controlled rotational oscillations facilitate rotation of the rotating structure about the rotational axis during transportation of the gas turbine engine system.
Dependencies are inferred from the claim text.