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. 20, 2019
Filed:
Dec. 18, 2013
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventor:
James R. Murdock, Tolland, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/28 (2006.01); F01D 5/14 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F01D 5/286 (2013.01); F01D 5/147 (2013.01); F04D 29/324 (2013.01); F05D 2220/10 (2013.01); F05D 2220/36 (2013.01); F05D 2230/23 (2013.01); F05D 2230/60 (2013.01); F05D 2240/303 (2013.01); F05D 2240/304 (2013.01); F05D 2300/133 (2013.01); F05D 2300/173 (2013.01); F05D 2300/174 (2013.01); F05D 2300/43 (2013.01); F05D 2300/601 (2013.01); F05D 2300/6012 (2013.01); Y02T 50/672 (2013.01); Y02T 50/673 (2013.01);
Abstract
Light weight fan blades for turbofan jet engines are disclosed. The fan blades may be fabricated from an aluminum alloy. To enhance the hardness of the leading edge of the fan blade, a titanium sheath may be attached to the leading edges of the fan blades. To prevent galvanic coupling between the titanium and the aluminum, a polymeric liner may be disposed between the protective titanium sheath and the aluminum fan blade. The liner may be fabricated from a polymer material, such as a polyimide or another high performance polymer.