Friction vibration damper

• US 6,802,405 B2
• Filed: 02/12/2002
• Issued: 10/12/2004
• Est. Priority Date: 03/03/2001
• Status: Expired due to Term

• Current Assignee: Rolls-Royce PLC (Rolls-Royce Holdings Plc)
• Original Assignee: Rolls-Royce PLC (Rolls-Royce Holdings Plc)
• Inventors: Barcock, Carl L, Tomlinson, Geoffrey R
• Primary Examiner(s): Siconolfi, Robert A.
• Assistant Examiner(s): KRAMER, DEVON C
• Application Number:
  US10/073,097
• Publication Number:
  US 20020121414A1
• Time in Patent Office: 973 Days
• Field of Search: 248/638, 188/268, 188/378, 188/379, 188/380, 521/676, 745/74
• US Class Current: 188/268
• CPC Class Codes: F16F 7/015 the particles being spherical, cylindrical or the like

Abstract

A friction vibration damper for damping the vibrations of a vibrating component comprising a body, a chamber and a plurality of elements, the body defines the chamber which is partially filled with the plurality of elements, the friction vibration damper, in use, disposed on or in the vibrating component characterized in that the friction vibration damper is configured to substantially prevent the elements operationally moving in a convection-like flow pattern.

Claims

1. A friction damper for damping the vibrations of a vibrating component comprising a body defining at least one chamber, the at least one chamber being partially filled with a plurality of particles to at least 90% fill such that the particles are able to move relative to one another, the friction vibration damper, in use, disposed on or in the vibrating component wherein the friction vibration damper comprises at least one baffle extending from the body into the chamber to substantially prevent the particles operationally moving in a convection-like flow pattern.

2. A friction vibration damper as claimed in claim 1 wherein the body defines a central axis and the at least one baffle extends in a place substantially parallel to the axis.

3. A friction vibration damper as claimed in claim 1 wherein the body defines a central axis and the at least one baffle extends in a plane substantially perpendicular to the axis.