Invention Grant
- Patent Title: High power epicyclic gearbox and operation thereof
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Application No.: US16821227Application Date: 2020-03-17
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Publication No.: US10851715B1Publication Date: 2020-12-01
- Inventor: Mark Spruce
- Applicant: ROLLS-ROYCE plc
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB1917773.2 20191205
- Main IPC: F02K3/06
- IPC: F02K3/06 ; F02C7/36

Abstract:
A gas turbine engine for an aircraft including: an engine core including a turbine, a compressor, and a core shaft connecting the turbine to the compressor; a fan located upstream of the engine core, the fan including a plurality of fan blades; a gearbox that receives an input from the core shaft and outputs drive to a fan shaft via an output of the gearbox so as to drive the fan at a lower rotational speed than the core shaft; and a fan shaft mounting structure arranged to mount the fan shaft within the engine, the fan shaft mounting structure including at least two supporting bearings connected to the fan shaft. A fan-gearbox axial distance is defined as the axial distance between the output of the gearbox and the fan axial centreline, the fan-gearbox axial distance being greater than or equal to 0.35 m.
Public/Granted literature
- US1652240A Combined clutch and drum and mounting therefor Public/Granted day:1927-12-13
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