Back to results
US 11,952,916 B2Granted
Self-lubricating blade root/disk interface
AssigneeRtx Corporation
InventorsPantcho P. Stoyanov, Kelly M. Harrington, Thomas D. Kasprow
Life of this patent
Estimating the term…
Abstract
A coating for a blade root/disk interface includes a layer of soft metal matrix, and a solid lubricant distributed through the soft metal matrix. Examples of materials include CuAl as the soft metal matrix and MoS2 as the solid lubricant, although others are also disclosed.
Claims7
A coated blade root/disk interface, comprising:
- a blade having a blade root;
- a disk having a socket, the blade root being engaged in the socket with contact surfaces defining at least one interface between the blade root and the socket of the disk;
- a coating at the at least one interface, wherein the coating comprises a layer of soft metal matrix, and a solid lubricant distributed through the soft metal matrix, wherein the soft metal matrix is CuAl, and wherein the solid lubricant is molybdenum disulfide, wherein the layer contains between 10 and 20 weight percent of solid lubricant, between 80 and 90 weight percent of soft metal matrix, and between 2 and 8 weight percent of aluminum, with balance copper.
Dependencies are inferred from the claim text.