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. 24, 2021
Filed:
Jun. 14, 2019
Applicant:
Bell Textron Inc., Fort Worth, TX (US);
Inventors:
Kirk L. Groninga, Keller, TX (US);
Daniel B. Robertson, Southlake, TX (US);
Matthew E. Louis, Fort Worth, TX (US);
Assignee:
Bell Textron Inc., Fort Worth, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 29/00 (2006.01); B64C 27/52 (2006.01); B64C 27/22 (2006.01); B64C 11/00 (2006.01);
U.S. Cl.
CPC ...
B64C 29/0033 (2013.01); B64C 11/001 (2013.01); B64C 27/22 (2013.01); B64C 27/52 (2013.01); B64C 29/0016 (2013.01); B64C 2201/162 (2013.01);
Abstract
An exemplary ducted fan with an optimized stator includes a duct surrounding a rotor hub from which blades radially extend and the stator having a stator span extending horizontally across an inside diameter of the duct, the stator having a stator chord extending from a leading edge to a trailing edge, wherein a length of the stator chord varies across the stator span.