logo

For the Inventor, By the Inventor

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.:

US 10676181 B1

PDFFull Text
Date of Patent:
Jun. 09, 2020

Filed:

Sep. 25, 2015

Gearbox for a dual rotor, rotary wing aircraft

Applicant:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Inventors:

Erez Eller, Oakville, CT (US);

Matthew T. Luszcz, Hamden, CT (US);

William J. Eadie, Cheshire, CT (US);

Steven D. Weiner, Orange, CT (US);

Assignee:

SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);

Attorney:

Cantor Colburn LLP

Primary Examiner:

Joseph W Sanderson

Int. Cl.
CPC ...
B64C 27/10 (2006.01); B64C 27/00 (2006.01); B64D 35/06 (2006.01); F16F 15/02 (2006.01); B64C 27/14 (2006.01); B64C 1/00 (2006.01); B64C 7/00 (2006.01); B64C 13/18 (2006.01); B64C 13/50 (2006.01); B64C 19/00 (2006.01); B64C 27/12 (2006.01); B64C 27/16 (2006.01); B64C 27/32 (2006.01); B64C 27/33 (2006.01); B64C 27/473 (2006.01); B64C 27/48 (2006.01); B64C 27/51 (2006.01); B64C 27/52 (2006.01); B64C 27/54 (2006.01); B64C 27/78 (2006.01); B64C 27/80 (2006.01); B64C 27/82 (2006.01); B64D 39/00 (2006.01); B64D 39/06 (2006.01); B64D 45/02 (2006.01); F16H 37/02 (2006.01); G05D 1/00 (2006.01); G05D 1/02 (2020.01); B64C 13/04 (2006.01); G05D 1/08 (2006.01); B64C 27/57 (2006.01); B64C 27/467 (2006.01); B64C 27/08 (2006.01); F02C 9/28 (2006.01); F16D 13/52 (2006.01); F16D 13/72 (2006.01); F16D 13/74 (2006.01);
U.S. Cl.
CPC ...
B64C 27/10 (2013.01); B64C 1/0009 (2013.01); B64C 7/00 (2013.01); B64C 13/04 (2013.01); B64C 13/18 (2013.01); B64C 13/50 (2013.01); B64C 13/503 (2013.01); B64C 19/00 (2013.01); B64C 27/001 (2013.01); B64C 27/006 (2013.01); B64C 27/008 (2013.01); B64C 27/12 (2013.01); B64C 27/14 (2013.01); B64C 27/16 (2013.01); B64C 27/32 (2013.01); B64C 27/322 (2013.01); B64C 27/33 (2013.01); B64C 27/467 (2013.01); B64C 27/473 (2013.01); B64C 27/48 (2013.01); B64C 27/51 (2013.01); B64C 27/52 (2013.01); B64C 27/54 (2013.01); B64C 27/57 (2013.01); B64C 27/78 (2013.01); B64C 27/80 (2013.01); B64C 27/82 (2013.01); B64D 35/06 (2013.01); B64D 39/00 (2013.01); B64D 39/06 (2013.01); B64D 45/02 (2013.01); F16F 15/02 (2013.01); F16H 37/02 (2013.01); G05D 1/0077 (2013.01); G05D 1/0202 (2013.01); G05D 1/0816 (2013.01); G05D 1/0858 (2013.01); B64C 27/08 (2013.01); B64C 2027/004 (2013.01); B64C 2027/8209 (2013.01); B64C 2027/8227 (2013.01); B64C 2027/8236 (2013.01); B64C 2027/8263 (2013.01); B64C 2027/8272 (2013.01); B64C 2027/8281 (2013.01); B64C 2201/024 (2013.01); F02C 9/28 (2013.01); F05D 2220/329 (2013.01); F05D 2270/021 (2013.01); F16D 13/52 (2013.01); F16D 13/72 (2013.01); F16D 13/74 (2013.01); G05D 1/0204 (2013.01); G05D 1/08 (2013.01);
Abstract

An aircraft is provided including an airframe, an extending tail, a counter-rotating, coaxial main rotor assembly having an upper rotor assembly and a lower rotor assembly, and a translational thrust system including a propeller positioned at the extending tail. The translational thrust system is configured to provide translational thrust to the airframe when the aircraft is in a non-autorotation state and to generate power when in an autorotation state. A gearbox interconnects the propeller and the main rotor assembly to drive the main rotor assembly and the translational thrust system in the non-autorotation state. When the aircraft is in autorotation, the power generated by the propeller drives rotation of the main rotor assembly via the gearbox.

Find Patent Forward Citations

Loading…