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US 11,028,728 B2Granted
Strut dampening assembly and method of making same
AssigneeRaytheon Technologies Corporation
InventorsConnor J. McGuire, Gregory Harrell, Colby S. Dunn
Life of this patent
Estimating the term…
Abstract
A strut includes a strut passage extending through the strut along a radial length of the strut. A tube is disposed within the strut passage and is spaced from an interior surface of the strut passage. A grommet is disposed about the tube and is in communication with the interior surface of the strut passage. The grommet defines a compressible zone including a hollow space extending radially through the grommet. The compressible zone is disposed between the tube and the interior surface of the strut passage.
Claims20
A strut comprising:
- a strut passage extending through the strut along an axial length of the strut;
- a tube disposed within the strut passage and spaced from an interior surface of the strut passage;
- and
- a grommet disposed about the tube and in communication with the interior surface of the strut passage,
- wherein the grommet defines a compressible zone comprising a hollow space extending axially through the grommet and the hollow space is completely surrounded by the grommet along an axial extent of the hollow space;
- and
- wherein the grommet comprises a first portion disposed about and contacting a perimeter of the tube and at least one second portion extending from the first portion away from the tube, wherein the compressible zone is defined radially between an outer radial surface of the first grommet portion and an inner radial surface of the second grommet portion.
4 more elements
A gas turbine engine comprising:
- an inner hub;
- an outer casing;
- and
- a plurality of struts extending between and connecting the inner hub to the outer casing, at least one strut of the plurality of struts comprising:
- a strut passage extending through the strut along an axial length of the strut;
- a tube disposed within the strut passage and spaced from an interior surface of the strut passage;
- and
- a grommet disposed about the tube and in communication with the interior surface of the strut passage,
- wherein the grommet defines a compressible zone comprising a hollow space extending axially through the grommet and the hollow space is completely surrounded by the grommet along an axial extent of the hollow space;
- and
- wherein the grommet comprises a first portion disposed about and contacting a perimeter of the tube and at least one second portion extending from the first portion away from the tube, wherein the compressible zone is defined radially between an outer radial surface of the first grommet portion and an inner radial surface of the second grommet portion.
8 more elements
A method for assembling a strut for a gas turbine engine comprising:
- providing a strut comprising a strut passage extending through the strut along an axial length of the strut and an opening to the strut passage through an outer axial end of the strut, the opening having a first width;
- attaching at least one grommet to a tube, the at least one grommet defining a compressible zone comprising a hollow space extending axially through the at least one grommet and the hollow space is completely surrounded by the at least one grommet along an axial extent of the hollow space, the grommet comprising a first portion disposed about and contacting a perimeter of the tube and at least one second portion extending from the first portion away from the tube, wherein the compressible zone is defined radially between an outer radial surface of the first grommet portion and an inner radial surface of the second grommet portion;
- compressing the at least one grommet such that the at least one grommet has a width less than the first width;
- and
- inserting the tube into the strut passage via the opening such that the compressible zone is disposed between the tube and an interior surface of the strut passage and the tube is spaced from the interior surface of the strut passage.
2 more elements
Dependencies are inferred from the claim text.