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:
Apr. 23, 2013
Filed:
Feb. 25, 2009
Gareth E Moore, Nottingham, GB;
David R Trainer, Derby, GB;
David P Scothern, Derby, GB;
David S Knott, Loughborough, GB;
Paul Simms, Melton Mowbray, GB;
Gareth E Moore, Nottingham, GB;
David R Trainer, Derby, GB;
David P Scothern, Derby, GB;
David S Knott, Loughborough, GB;
Paul Simms, Melton Mowbray, GB;
Rolls-Royce, PLC, London, GB;
Abstract
A gas turbine engine arrangement comprises a first gas turbine engine, a second gas turbine engine, a differential gearbox and an electrical generator. The differential gearbox has a first input drive, a second input drive and an output drive. The output drive of the differential gearbox is arranged to drive the electrical generator via an external, accessory, gearbox. The external, accessory, gearbox drives other accessories. The first gas turbine is arranged to drive the first input drive of the differential gearbox and the second gas turbine engine is arranged to drive the second input drive of the differential gearbox. The electrical generator and accessories are driven at a constant frequency speed/frequency.