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:
Jun. 27, 2023
Filed:
Jan. 25, 2019
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventor:
Joseph Dean Rainville, Fort Worth, TX (US);
Assignee:
Textron Innovations Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 27/24 (2006.01); B64C 27/04 (2006.01); H01M 8/04537 (2016.01); B64D 41/00 (2006.01); H01M 8/04858 (2016.01);
U.S. Cl.
CPC ...
B64D 27/24 (2013.01); B64C 27/04 (2013.01); B64D 41/00 (2013.01); H01M 8/04552 (2013.01); H01M 8/04567 (2013.01); H01M 8/04873 (2013.01); B64D 2041/005 (2013.01); B64D 2221/00 (2013.01); H01M 2250/20 (2013.01);
Abstract
A fuel-cell system at 540 VDC for powering an electrical load of a rotorcraft with a first fuel cell and a second fuel cell. Each fuel cell is configured identically and features a positive electrical node and a negative electrical node. Each fuel cell is configured to provide one half of the electrical load of the rotorcraft and one half of the voltage of the electrical load.