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. 06, 2023
Filed:
May. 25, 2021
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Marc J. Muldoon, Marlborough, CT (US);
Carroll V. Sidwell, Wethersfield, CT (US);
Assignee:
RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/224 (2006.01); F02C 3/22 (2006.01); F02C 7/232 (2006.01); F02C 7/26 (2006.01); F02C 9/40 (2006.01); B64D 37/14 (2006.01); B64D 37/30 (2006.01); F02C 7/262 (2006.01); F02C 7/32 (2006.01); B64D 37/04 (2006.01); B64D 37/10 (2006.01); B64D 37/16 (2006.01); B64D 37/34 (2006.01); B64D 37/06 (2006.01); B64F 1/28 (2006.01);
U.S. Cl.
CPC ...
F02C 7/224 (2013.01); F02C 3/22 (2013.01); F02C 7/232 (2013.01); F02C 7/26 (2013.01); F02C 7/262 (2013.01); F02C 7/32 (2013.01); F02C 9/40 (2013.01); B64D 37/04 (2013.01); B64D 37/06 (2013.01); B64D 37/10 (2013.01); B64D 37/14 (2013.01); B64D 37/16 (2013.01); B64D 37/30 (2013.01); B64D 37/34 (2013.01); B64F 1/28 (2013.01); F05D 2220/323 (2013.01); F05D 2240/36 (2013.01);
Abstract
Aircraft hydrogen fuel systems and methods and systems of starting such systems are described. The aircraft hydrogen fuel systems include a hydrogen burning main engine, a main tank configured to contain liquid hydrogen to be supplied to the main engine during a normal operation, and a starter tank configured to contain gaseous hydrogen to be used during a startup operation of the main engine. Methods and processes for starting and/or restarting such systems are described.