Damper for an integrally bladed rotor

• US 9,151,170 B2
• Filed: 06/28/2011
• Issued: 10/06/2015
• Est. Priority Date: 06/28/2011
• Status: Active Grant

• Current Assignee: Rtx Corporation
• Original Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: El-Aini, Yehia M., Davis, Gary A.
• Primary Examiner(s): Look, Edward
• Assistant Examiner(s): EASTMAN, AARON ROBERT
• Application Number:
  US13/170,433
• Publication Number:
  US 20130004313A1
• Time in Patent Office: 1,561 Days
• Field of Search: 416/190, 416/500, 415/119
• US Class Current: 1/1
• CPC Class Codes: F01D 5/10 Anti- vibration means specially adapted for radial flow machines or engines F01D5/04
• CPC Class Codes: F01D 5/147 Construction, i.e. structural features, e.g. of weight-saving hollow blades F01D5/148, F01D5/16 and F01D5/20 take precedence; blade shape F01D5/141; blades with cooling or heating channels or cavities F01D5/18; heating, heat-insulating or cooling means on blades F01D5/18
• CPC Class Codes: F01D 5/34 Rotor-blade aggregates of unitary construction , e.g. formed of sheet laminae; discs formed of sheet laminae F01D5/028; ceramic materials F01D5/284, composite materials F01D5/282
• CPC Class Codes: F05D 2220/32 in gas turbines
• CPC Class Codes: F05D 2250/75 given by its similarity to a letter, e.g. T-shaped
• CPC Class Codes: F05D 2260/96 Preventing, counteracting or reducing vibration or noise

Abstract

A Rotor includes a disk having a rim with an axial face, the rim defines a circumferential groove. A damper engaged with the rim at both the axial face and the circumferential groove.

Claims

1. An integrally bladed rotor comprising:

a rotor hub that defines a hub face facing one of a forward or rearward direction and a hub rim transverse to said hub face;

a multiple of airfoils integral with said hub rim;

a split ring damper mounted to said rotor hub and including a portion in contact with said hub face;

wherein said rotor hub comprises a hub inner surface facing a longitudinal axis about which said rotor hub rotates and said hub rim being spaced radially outwardly relative to said hub inner surface, and wherein said hub face extends radially inwardly from said hub rim to said hub inner surface; and

including a circumferential groove formed within said hub inner surface, and wherein said spilt ring damper includes a first leg mounted within said circumferential groove and a second leg that extends from said first leg to surround a radial lip of said hub inner surface and to contact said hub face.