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:
Aug. 29, 2023
Filed:
Aug. 15, 2022
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventor:
Enzo DiBenedetto, Berlin, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/18 (2006.01); F01D 9/06 (2006.01); F02C 7/06 (2006.01); F02C 7/28 (2006.01); F01D 25/16 (2006.01);
U.S. Cl.
CPC ...
F01D 25/183 (2013.01); F01D 9/065 (2013.01); F02C 7/06 (2013.01); F02C 7/28 (2013.01); F01D 25/162 (2013.01); F05D 2220/323 (2013.01); F05D 2240/12 (2013.01); F05D 2240/50 (2013.01); F05D 2240/55 (2013.01); F05D 2260/6022 (2013.01); F05D 2300/224 (2013.01);
Abstract
A turbine engine strut stage extends through a gaspath upstream of a guide vane stage. A carbon seal system seals a bearing compartment and has: a carbon seal mounted to the case and a seal runner on the spool; and a seal carrier carrying the carbon seal. The engine passes buffer air along a buffer air supply path internally through one or more first struts of the stage of struts. The engine drains oil along an oil drain path internally through one or more second struts of the stage of struts.