US Patent 7107756 Turbofan arrangement

Patent 7107756 was granted and assigned to Rolls-Royce on September, 2006 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Rolls-Royce

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7107756

Date of Patent

September 19, 2006

Patent Application Number

10809467

Date Filed

March 26, 2004

Patent Primary Examiner

‌

Ted Kim

Patent abstract

A bypass turbofan engine comprises a first propulsion system and a second propulsion system. The first propulsion system comprises a first fan rotor, a core engine, a first low pressure turbine and a first fan shaft drivingly connecting the first turbine and the first fan rotor. The second propulsion system comprises a second fan shaft drivingly connecting to a second fan rotor and the first propulsion system and arranged so that the first and second shafts are not coaxial with one another.