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:
May. 12, 2009
Filed:
May. 18, 2006
Fabio P. Bertolotti, South Windor, CT (US);
Mark W. Scott, Bethany, CT (US);
Brian E. Wake, South Glastonbury, CT (US);
T. Alan Egolf, Glastonbury, CT (US);
Duane C. Mccormick, Colchester, CT (US);
Ebru Usta, Glastonbury, CT (US);
Stuart S. Ochs, Manchester, CT (US);
Fabio P. Bertolotti, South Windor, CT (US);
Mark W. Scott, Bethany, CT (US);
Brian E. Wake, South Glastonbury, CT (US);
T. Alan Egolf, Glastonbury, CT (US);
Duane C. McCormick, Colchester, CT (US);
Ebru Usta, Glastonbury, CT (US);
Stuart S. Ochs, Manchester, CT (US);
Sikorsky Aircraft Corporation, Stratford, CT (US);
Abstract
A rotor hub fairing system includes an upper hub fairing, a lower hub fairing and a shaft fairing therebetween. The rotor hub fairing system reduces the total drag on a dual, counter-rotating, coaxial rotor system. Other aerodynamic structures may be mounted to the shaft fairing, hub fairings and airframe to facilitate flow around the upper and lower hub fairings to reduce flow separation and drag.