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. 20, 2018
Filed:
Apr. 22, 2016
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Huw L. Edwards, Derby, GB;
Alexander C Smith, Derby, GB;
Judith M. Apsley, Derby, GB;
Charalampos Manolopoulos, Derby, GB;
Assignee:
ROLLS-ROYCE PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 27/02 (2006.01); B64D 35/02 (2006.01); B64D 27/24 (2006.01);
U.S. Cl.
CPC ...
B64D 27/02 (2013.01); B64D 27/24 (2013.01); B64D 35/02 (2013.01); B64D 2027/026 (2013.01); B64D 2221/00 (2013.01); Y02T 50/44 (2013.01); Y02T 50/64 (2013.01);
Abstract
An electrical network for an aircraft. The aircraft includes at least one variable pitch propulsor. The electrical network includes a wound field synchronous AC electrical generator having a wound rotor driven by an internal combustion engine. The network further includes a voltage regulator configured to regulate output voltage of the electrical generator by regulating rotor winding magnetic field strength, and a synchronous AC drive motor coupled to a respective variable pitch propulsor and provided with power from the output of the electrical generator.