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US 10,539,034 B2Granted
Radial seal with offset relief cut
AssigneeUnited Technologies Corporation
InventorJonathan Logan Miller
Life of this patent
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Abstract
A seal assembly for a turbine engine is disclosed and includes a fixed housing including an axial surface defining an inner diameter and an annular seal that is disposed within the housing and seal against a radial surface of the fixed housing. The annular seal includes a first surface transverse to an axis of rotation and a second surface parallel to the axis of rotation defining an inner periphery. The first surface includes a first notch spaced apart from the inner periphery and overlapping the inner diameter of the fixed housing.
Claims18
A seal assembly comprising;
- a fixed housing including a radially extending sealing surface and an inner fixed surface, the inner fixed surface is an in innermost face of the fixed housing and beginning at the radially extending sealing surface extends axially directly from the radially extending sealing surface in a direction parallel with an axis of rotation;
- and
- an annular seal disposed within the fixed housing, the annular seal including a first surface and a second surface, the first surface transverse to the axis of rotation and in sealing contact with the radially extending sealing surface of the fixed housings and the second surface is parallel to the axis of rotation, the first surface including a first notch spaced apart from the second surface, the first notch overlapping the inner fixed surface of the fixed housing at the radially extending sealing surface, wherein the first surface includes an upper radial surface radially outboard of the first notch and a lower radial surface that is radially inboard of the first notch, and wherein the upper radial surface is flush with the lower radial surface and a second notch on the first surface is radially outward from the first notch.
A seal assembly for a turbine engine, comprising:
- a fixed housing including first and second radially extending sealing surfaces spaced axially apart and corresponding first and second inner fixed surfaces extending directly axially from the corresponding one of the first and second radially extending sealing surfaces;
- a rotating element configured for rotation about an axis, wherein the first and second inner fixed surfaces of the fixed housing are spaced apart from the rotating element;
- and
- first and second annular seals disposed within the fixed housing, each of the first and second annular seals including a first surface sealing against a corresponding one of the first and second radially extending sealing surfaces of the fixed housing, a second surface sealing against the rotating element, and a first notch on the first surface spaced radially apart from the second surface, wherein a corresponding one of the first and second inner fixed surface of the fixed housing is aligned with the first notch at a location extending directly axially from the corresponding one of the radially extending sealing surfaces.
1 more element
A turbine engine comprising:
- a fixed housing including a radially extending sealing surface and a radially inner fixed surface extending axially from the radially extending sealing surface;
- a rotating element configured for rotation about an axis, wherein the radially inner fixed surface of the fixed housing is spaced apart from the rotating element;
- and
- a first annular seal and a second annular seal disposed within the fixed housing, each of the first annular seal and the second annular seal including a first surface and a second surface, the first surface configured for sealing against the radially extending sealing surface of the fixed housing, the second surface configured for sealing against the rotating element, and a first notch on the first surface spaced radially apart from the second surface, wherein the radially inner fixed surface of the fixed housing is aligned with the first notch at the radially extending sealing surface, wherein a biasing member biasing the first annular seal away from the second annular seal and into engagement with the fixed housing.
1 more element
Dependencies are inferred from the claim text.