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:
Nov. 10, 2015
Filed:
Mar. 15, 2013
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventors:
Dudley E. Smith, Arlington, TX (US);
Cory M. Hitte, Fort Worth, TX (US);
Bryan Marshall, Mansfield, TX (US);
Carlos Alexander Fenny, Arlington, TX (US);
Assignee:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/12 (2006.01); B64C 27/00 (2006.01); B64D 27/24 (2006.01);
U.S. Cl.
CPC ...
B64C 27/006 (2013.01); B64C 27/12 (2013.01); B64D 27/24 (2013.01); Y10T 29/49117 (2015.01);
Abstract
An autorotative enhancement system comprises a transmission having a driveshaft configured to couple to an engine. A mast is configured to couple to multiple rotor blades. An autorotative assist unit is configured to the transmission and is configured to store energy during normal operation and drive the rotor blades through the transmission to provide supplemental autorotative assistance upon loss of engine power.