Gas turbine engine electrical generator
AssigneeROLLS-ROYCE plc
InventorPaul R. DAVIES
Life of this patent
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Abstract
An aircraft gas turbine engine (10) comprises a main engine shaft (22, 23), a main engine shaft bearing arrangement (36, 44, 49, 50) configured to rotatably support the main engine shaft (22, 23) and an electric machine (30) comprising a rotor (34) and a stator (32). The rotor (34) is mounted to the main engine shaft (22, 23) and is rotatably supported by the main engine shaft bearing arrangement (36, 44, 49, 50), and the stator (32) is mounted to static structure (46) of the gas turbine engine (10).
Claims13
An aircraft gas turbine engine comprising:
- a main engine shaft;
- a main engine shaft bearing arrangement configured to rotatably support the main engine shaft;
- and
- an electric machine comprising a rotor and a stator;
- wherein
- the rotor is mounted to the main engine shaft and is rotatably supported by the main engine shaft bearing arrangement, and the stator is mounted to static structure of the gas turbine engine.
A method of assembling an embedded electric machine in a gas turbine engine, the method comprising:
- mounting a stator of the electric machine to a static structure of the gas turbine engine;
- then inserting a gas turbine engine main shaft comprising an electric machine rotor into an annular space defined by the electric machine stator;
- the gas turbine engine main shaft being supported by at least one main engine shaft bearing during insertion.
Dependencies are inferred from the claim text.