Oil shield for a rotating assembly
AssigneeRtx Corporation
InventorsSamuel B. Hoyt, Stephen H. Mattia
Life of this patent
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Abstract
An assembly for a gas turbine engine comprising a rotating structure, a bearing compartment, and an oil shield. The rotating structure extends axially along an axis and includes a rotor and an engine shaft. The bearing compartment includes a bearing assembly and a seal element. The seal element is disposed axially between the bearing assembly and the rotor. The oil shield is arranged with the rotating structure and extends radially between an inner radial body portion and an outer radial body portion. The inner radial body portion is coupled with the engine shaft. The outer radial body portion extends axially between a first curved surface and a second curved surface. The oil shield is configured to direct lubricant leaked from the bearing compartment away from the rotor.
Claims18
An assembly for a gas turbine engine, comprising:
- a rotating structure extending axially along an axis and including a rotor and an engine shaft;
- a bearing compartment including a bearing assembly and a seal element, the seal element disposed axially between the bearing assembly and the rotor;
- and
- an oil shield arranged with the rotating structure and extending radially between an inner radial body portion and an outer radial body portion, the inner radial body portion coupled with the engine shaft, the outer radial body portion extending axially between a first curved surface and a second curved surface, and the oil shield is configured to direct lubricant leaked from the bearing compartment away from the rotor;
- the rotor including an inner bore surface, an outer bore surface, an end, a rotor bore and a rotor cavity, the end coupled in rotational engagement with the engine shaft, the rotor bore extending radially between the inner bore surface and the outer bore surface, and the rotor cavity formed within the rotor and extending radially between an inner radial cavity surface of the rotor and an outer radial cavity surface of the rotor, and the rotor cavity extending radially between a forward interior surface of the rotor and an aft interior surface of the rotor.
An oil shield for a rotating structure of a gas turbine engine, comprising:
- an annular body extending circumferentially about a central axis, the annular body including an inner radial body portion, an outer radial body portion and an interface therebetween;
- the inner radial body portion extending between an inner circumferential surface and the interface, the inner radial body portion configured for couplable engagement with the rotating structure;
- and
- the outer radial body portion extending axially between a first curved surface and a second curved surface, the outer radial body portion extending radially between the interface and an outer circumferential surface, the first curved surface configured as a convex surface and the second curved surface configured as a concave surface;
- wherein the second curved surface includes a plurality of grooves, the plurality of grooves extend laterally within the second curved surface, and the plurality of grooves extend radially within the second curved surface from the interface towards the outer circumferential surface.
An assembly for a gas turbine engine, comprising:
- a rotating structure extending axially along an axis and including a rotor and an engine shaft, the rotor including an inner bore surface, an outer bore surface, a rotor bore and a rotor cavity, and the rotor bore extends radially between the inner bore surface and the outer bore surface;
- a static structure extending axially along the axis and disposed radially outboard of the engine shaft;
- a bearing compartment including a bearing assembly and a seal element, the seal element disposed axially between the bearing assembly and the rotor, the bearing assembly coupled with and supporting the static structure, and the seal element mounted to the static structure and projecting radially inward from the static structure towards the engine shaft;
- an outer plenum located radially outboard of and circumscribing the static structure;
- and
- an oil shield arranged with the rotating structure and extending radially between an inner radial body portion and an outer radial body portion, the oil shield located axially between the rotor cavity and the bearing compartment, and the inner radial body portion coupled with the engine shaft and longitudinally spaced from the seal element.
Dependencies are inferred from the claim text.