The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2024
Filed:
Jun. 17, 2022
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Dean Johnson, Springvale, ME (US);
Thomas E. Clark, Wells, ME (US);
Assignee:
RTX CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/12 (2006.01); F01D 11/00 (2006.01); F01D 11/02 (2006.01); F01D 11/24 (2006.01); F01D 25/00 (2006.01); F01D 25/12 (2006.01);
U.S. Cl.
CPC ...
F01D 11/125 (2013.01); F01D 11/005 (2013.01); F01D 11/02 (2013.01); F01D 11/24 (2013.01); F01D 25/12 (2013.01); F01D 25/005 (2013.01); F05D 2240/11 (2013.01); F05D 2240/55 (2013.01); F05D 2300/6033 (2013.01);
Abstract
A seal system for a gas turbine engine includes a ceramic matrix composite (CMC) seal arc segment and a carrier supporting the CMC seal arc segment. The CMC seal arc segment defines radially inner and outer sides and has an abradable layer disposed on the radially outer side. There is a cooling cavity radially between the carrier and the abradable layer. The carrier includes a ridge that projects into a groove in the abradable layer and provides a labyrinth seal that partitions the cooling cavity into sub-cavities.