Aircraft propulsion system
    1.
    发明授权

    公开(公告)号:US11414198B2

    公开(公告)日:2022-08-16

    申请号:US16546362

    申请日:2019-08-21

    Inventor: Giles E. Harvey

    Abstract: An aircraft propulsion system comprises a vertical lift propulsor mounted within a wing of the aircraft. The vertical propulsor comprises an electric motor comprising a rotor mounted to a plurality of propulsor blades, the motor further comprising a stator. The rotor is provided radially outwardly of the stator.

    Electric ducted fan
    3.
    发明授权

    公开(公告)号:US11077953B2

    公开(公告)日:2021-08-03

    申请号:US16390555

    申请日:2019-04-22

    Inventor: Giles E. Harvey

    Abstract: An electric ducted fan for an aircraft is shown. A nacelle defines a duct that houses a propulsive fan having a fan diameter DF. An electric machine is configured to drive the fan, and has an electromagnetically active length LA and an electromagnetically active diameter DA defining an aspect ratio (LA/DA) of from 0.8 to 2. A speed reduction device is located between the electric machine and the fan, and has a reduction ratio of at least 3:1. A ratio of the electromagnetically active diameter DA to the fan diameter DF (DA/DF) is from 0.3 to 0.5.

    Electric ducted fan
    6.
    发明授权

    公开(公告)号:US11077952B2

    公开(公告)日:2021-08-03

    申请号:US16390553

    申请日:2019-04-22

    Inventor: Giles E. Harvey

    Abstract: An electric ducted fan for an aircraft is shown. A nacelle defines a duct that houses a propulsive fan having a fan diameter DF. An electric machine is configured to drive the fan, and has an electromagnetically active length LA and an electromagnetically active diameter DA defining an aspect ratio (LA/DA) of from 0.8 to 2. A ratio of the electromagnetically active diameter DA to the fan diameter DF (DA/DF) is from 0.45 to 0.60.

    Concentric turbomachine with electric machine

    公开(公告)号:US11371350B2

    公开(公告)日:2022-06-28

    申请号:US16528243

    申请日:2019-07-31

    Inventor: Giles E. Harvey

    Abstract: An axial flow turbomachine (102) for producing thrust to propel an aircraft is shown. The turbomachine has an inner duct (202) and an outer duct (204), both of which are annular and concentric with one another. An inner fan (206) is located in the inner duct, and is configured to produce a primary pressurised flow (P). An outer fan (207) is located in an outer duct, and is configured to produce a secondary pressurised flow (S). The outer fan has a hollow hub (208) through which the inner duct passes. The inner fan is configured to have, in operation, a rate of rotation of from 3 to 8 times that of the outer fan.

    Aircraft propulsion system
    8.
    发明授权

    公开(公告)号:US11364991B2

    公开(公告)日:2022-06-21

    申请号:US16546372

    申请日:2019-08-21

    Inventor: Giles E. Harvey

    Abstract: An aircraft propulsion system comprises first and second co-axial propulsors, one of the first and second propulsor being positioned forward of the other propulsor. A first electric motor is configured to drive the first propulsor, and a second electric motor is configured to drive the second propulsor. The first electric motor comprising a rotor radially inwardly of the stator, and the second electric motor comprises a rotor radially outwardly of the stator. The stator of the first electric motor is mounted to the stator of the second electric motor.

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