Patent ID: 11879480
Assignee: ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 15:
16. A method of making a compressor assembly, the method comprising
moving a first ring segment relative to a variable pitch vane such that the variable pitch vane is received in a first portion of a bearing aperture formed in the first ring segment,
moving a second ring segment relative to the first ring segment such that the variable pitch vane is received in a second portion of the bearing aperture formed in the second ring segment,
inserting a rivet axially through the first ring segment and the second ring segment, and
plastically deforming an end of the rivet to couple the first ring segment with the second ring segment,
further comprising applying a layer of abradable material to the first ring segment and the second ring segment such that the layer of abradable material is coupled to a radial inner surface of the first ring segment and a radial inner surface of the second ring segment.