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. 25, 2020
Filed:
Mar. 31, 2017
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
Kent E. Karnofski, Lake Forest Park, WA (US);
Chris T. Jasklowski, Redmond, WA (US);
Jason J. Jackowski, Everett, WA (US);
Assignee:
THE BOEING COMPANY, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 17/26 (2006.01); F01D 25/24 (2006.01); F01D 21/12 (2006.01); F01D 25/34 (2006.01); B64D 27/16 (2006.01); B64D 27/26 (2006.01); F01D 19/00 (2006.01);
U.S. Cl.
CPC ...
F01D 17/26 (2013.01); B64D 27/16 (2013.01); B64D 27/26 (2013.01); F01D 19/00 (2013.01); F01D 21/12 (2013.01); F01D 25/24 (2013.01); F01D 25/34 (2013.01); B64D 2027/268 (2013.01); F05D 2260/406 (2013.01); F05D 2260/42 (2013.01); F05D 2260/85 (2013.01); F05D 2260/941 (2013.01); Y02T 50/671 (2013.01);
Abstract
Pressurized fluid is stored while a jet engine is running. After engine shutdown, the fluid is used to drive a pneumatic or hydraulic turning motor that rotates the engine's High Pressure (HP) rotor. The rotation encourages even heat distribution across the HP rotor and thus prevents bowing of the HP rotor.