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:
Jul. 28, 2026
Filed:
Oct. 31, 2022
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Paul M. Lutjen, Kennebunkport, ME (US);
Morely S. Sherman, Biddeford, ME (US);
Assignee:
RTX Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F01D 11/08 (2006.01); F02C 7/18 (2006.01); F02C 7/28 (2006.01); F01D 25/24 (2006.01);
U.S. Cl.
CPC ...
F01D 11/003 (2013.01); F01D 11/005 (2013.01); F01D 11/08 (2013.01); F02C 7/18 (2013.01); F02C 7/28 (2013.01); F01D 25/246 (2013.01); F05D 2240/11 (2013.01); F05D 2240/55 (2013.01); F05D 2300/6033 (2013.01);
Abstract
There is an axial gap between a leading edge of one of a blade outer air seal and a stator vanes and a trailing edge of the other. A feather seal is positioned to span the axial gap. The feather seal has axially spaced curved portions, with one of the curved portions in contact with a surface of the blade outer air seal and another of the curved portions being in contact with a surface of the stator vane. A pressure differential forces the feather seal into contact with the sealing surfaces and the contact being point contact due to the curved portions.