Patent · US Active

Method of fabricating cooling features on a ceramic matrix composite (CMC) component

US11820716B2 · kind B2 · utility

0Cited by

11References

21Claims

0Family size

Assignees

Rolls-Royce North American Technologies Inc. · US
Rolls-Royce High Temperature Composites, Inc. · US
Rolls-Royce Corporation · US

Inventors

Ted J. Freeman · Danville, US
Aaron D. Sippel · Zionsville, US
Robert J. Shinavski · Mission Viejo, US
Chris Barrett · Ottawa, CA

Key dates

Filing date	Oct 17, 2019
Grant date	Nov 21, 2023
Priority date	—
Expiry date	Sep 15, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/945
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of fabricating cooling features on a CMC component may comprise compressing a fabric preform within tooling including holes and/or recesses facing the fabric preform. During the compression, portions of the fabric preform are pushed into the holes and/or recesses. Gases are delivered through the tooling to deposit a matrix material on exposed surfaces of the fabric preform while the fabric preform is being compressed. The matrix material builds up on the portions of the fabric preform pushed into the holes and/or recesses, and a rigidized preform with surface protrusions is formed. The tooling is removed, and the rigidized preform is densified, thereby forming a CMC component including raised surface features.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.