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. 02, 2018
Filed:
Dec. 09, 2015
Sikorsky Aircraft Corporation, Stratford, CT (US);
Colman D. Shattuck, Colchester, CT (US);
Peter F. Lorber, Southbury, CT (US);
Blake Almy Moffitt, South Windsor, CT (US);
Peter J. Germanowski, Newtown, CT (US);
Brian E. Wake, South Glastonbury, CT (US);
Steven D. Weiner, Orange, CT (US);
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Abstract
A propulsor system for a rotary winged aircraft includes a propeller including having a propeller hub rotatable about a propeller axis and a plurality of propeller blades secured to and extending radially outwardly from the propeller hub. The propeller is oriented on the rotary winged aircraft to provide forward thrust for the rotary winged aircraft when the propeller is rotated about the propeller hub. A plurality of guide vanes non rotatable about the propeller axis are positioned upstream of the plurality of propeller blades. The plurality of guide vanes are positioned to turn an airflow flowing into the plurality or propeller blades, thereby reducing an angle of attack of the plurality of propeller blades relative to the airflow.