Vibration damper for fluid conduit of gas turbine combustor
AssigneeGE Infrastructure Technology LLC
InventorsThomas Edward Johnson, Larry Lou Thomas, Johnie Franklin McConnaughhay, Scott Robert Simmons
Life of this patent
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Abstract
A vibration damper for a fuel conduit of a gas turbine combustor includes a mounting portion and a damping portion. The mounting portion is secured to the fuel conduit, and the damping portion includes a stack of damping washers, a bushing on top of the stack of damping washers, a spring clip secured around the stack of damping washers and the bushing, and a shoulder bolt disposed through the bushing and the stack of damping washers and engaged to the mounting portion.
Claims17
A vibration damper for a fluid conduit of a gas turbine combustor, the vibration damper comprising:
- a mounting portion secured to the fluid conduit;
- and
- a damping portion, the damping portion including:
- a stack of damping washers, wherein each damping washer of the stack of damping washers comprises a body having a central aperture, a pin projecting from a bottom surface thereof, and a locking aperture defined therethrough, the locking aperture being opposite the pin across a diameter of the body, wherein the pin has a first diameter, and the locking aperture has a second diameter larger than the first diameter, wherein the pin of a first damping washer is inserted in the locking aperture of an adjacent second damping washer, and wherein the pin of the second damping washer is inserted in the locking aperture of a third damping washer adjacent the second damping washer;
- a bushing on top of the stack of damping washers;
- a spring clip secured around the stack of damping washers and the bushing, wherein the pin of a bottom damping washer in the stack of damping washers opposite the first damping washer is disposed in a locking aperture defined through a bottom surface of the spring clip;
- and
- a shoulder bolt disposed through the bushing, the spring clip, and the stack of damping washers and engaged to the mounting portion.
A fluid conduit for a gas turbine combustor comprising:
- a plurality of tubes connected to one another and subject to vibrations;
- and
- a vibration damper affixed to one of the plurality of tubes, the vibration damper comprising:
- a mounting portion secured to the fluid conduit;
- and
- a damping portion, the damping portion including:
- a stack of damping washers;
- a bushing on top of the stack of damping washers;
- a spring clip secured around the stack of damping washers and the bushing, wherein the spring clip has a top surface and a bottom surface connected to the top surface by a curved surface, wherein the top surface and the bottom surface each define an aperture therethrough, the apertures being aligned with each other, wherein the bottom surface is planar and is configured to be disposed on a connection body of the mounting portion, wherein the top surface includes a first portion connected to or contiguous with a curved portion and a second portion distal to the curved portion, wherein the first portion slopes radially inwardly from the curved portion toward the aperture, and wherein the second portion slopes radially outwardly from the aperture and away from the bushing;
- and
- a shoulder bolt disposed through the bushing, the spring clip, and the stack of damping washers and engaged to the mounting portion.
A vibration damper for a fluid conduit of a gas turbine combustor, the vibration damper comprising:
- a mounting portion secured to the fluid conduit;
- and
- a damping portion, the damping portion including:
- a stack of damping washers, a bushing on top of the stack of damping washers, a spring clip secured around the stack of damping washers and the bushing, and a shoulder bolt disposed through the bushing and the stack of damping washers and engaged to the mounting portion, wherein the bushing includes a cylindrical portion and a locking key projecting therefrom;
- and wherein the spring clip includes a top surface defining an aperture with a locking recess, the aperture and the locking recess being sized to correspond, respectively, to the cylindrical portion and the locking key and being aligned such that the top surface of the spring clip fits over the cylindrical portion of the bushing, and the locking key of the bushing fits into the locking recess.
Dependencies are inferred from the claim text.