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:
Feb. 17, 2015
Filed:
Dec. 28, 2011
Donald W. Burns, Avon, IN (US);
Donald W. Burns, Avon, IN (US);
Rolls-Royce Corporation, Indianapolis, IN (US);
Abstract
A system, which may be a propulsion system or a vehicle having a propulsion system, for example, an air-vehicle, a land vehicle or a marine vehicle, includes a gas turbine engine operative to drive a propulsor. The propulsor may be, for example, a fan/turbofan, a propeller, a turbine, or any rotor system for propelling an aircraft; a system for providing tractive effort for a land vehicle, such as one or more transmissions and wheel/track systems; and/or may be one or more marine propulsive devices, such as shrouded or unshrouded propellers, hydrojets and/or jet-pumps for surface vessels and/or submarines. The system also includes an auxiliary power unit. The auxiliary power unit is coupled to the gas turbine engine, and is operative to supply rotational power to the propulsor and to the impart motion to the vehicle using the propulsor, without starting the gas turbine engine.