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:
Oct. 11, 2022
Filed:
May. 08, 2020
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Jonathan Logan Miller, Belchertown, MA (US);
Daniel B. Denis, Simsbury, CT (US);
Shadd A. Bradshaw, Manchester, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/18 (2006.01); F16J 15/34 (2006.01);
U.S. Cl.
CPC ...
F01D 25/183 (2013.01); F16J 15/3496 (2013.01);
Abstract
A seal system for a gas turbine engine includes a seal runner manufactured of a Molybdenum alloy material that provides a first coefficient of thermal expansion and a seal ring manufactured of a graphitic material that provides a second coefficient of thermal expansion greater than the first coefficient of thermal expansion.