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    AERIAL VEHICLE
    1.
    发明申请
    AERIAL VEHICLE 审中-公开

    公开(公告)号：WO2018208220A1

    公开(公告)日：2018-11-15

    申请号：PCT/SG2017/050241

    申请日：2017-05-09

    Applicant: ST ENGINEERING AEROSPACE LTD.

    Inventor： CHAN, Keen Ian

    IPC: B64C11/46 ,  B64C27/52 ,  A63H27/18 ,  B64C27/08 ,  A63H27/127 ,  B64C29/02 ,  B64C39/08 ,  B64C39/10

    Abstract: An aerial vehicle may include a first wing structure. The aerial vehicle may further include a first propeller and a second propeller disposed along the first wing structure. The aerial vehicle may further include a second wing structure disposed to intersect the first wing structure to form a cross configuration. The aerial vehicle may further include a third propeller and a fourth propeller disposed along the second wing structure. In a hovering orientation of the aerial vehicle, respective propeller rotational axes of the first and second propellers may be angled off-vertical in respective planes which may be perpendicular to a transverse axis of the first wing structure, and respective propeller rotational axes of the third and fourth propellers may be angled off-vertical in respective planes which may be perpendicular to a transverse axis of the second wing structure.

    ASYMMETRIC AERIAL VEHICLE
    2.
    发明申请
    ASYMMETRIC AERIAL VEHICLE 审中-公开

    公开(公告)号：WO2019017833A1

    公开(公告)日：2019-01-24

    申请号：PCT/SG2017/050356

    申请日：2017-07-18

    Applicant: ST ENGINEERING AEROSPACE LTD.

    Inventor： CHAN, Keen Ian

    IPC: B64C11/46 ,  B64C27/08 ,  A63H27/127 ,  B64C29/02 ,  B64C39/08 ,  B64C39/10 ,  A63H27/18

    Abstract: An aerial vehicle including a first wing structure and a second wing structure which intersects the first wing structure perpendicularly at a position offset from a midpoint of a transverse axis of the first wing structure in a direction towards a first wingtip of the first wing structure. The aerial vehicle may further include a first set of at least two propellers with respective propeller rotational axes disposed side-by-side along a portion of the first wing structure extending between the midpoint of the transverse axis of the first wing structure and a second wingtip of the first wing structure. The aerial vehicle may further include a second set of at least two propellers with respective propeller rotational axes disposed side-by-side along a first portion of the second wing structure extending from a first surface of the first wing structure. The aerial vehicle may further include a third set of at least two propellers with respective propeller rotational axes disposed side-by-side along a second portion of the second wing structure extending from a second surface of the first wing structure.

    AERODYNAMIC OPTIMIZATION OF THE SIZING AND BLADE DESIGNS OF COROTATING COAXIAL ROTORS
    3.
    发明申请
    AERODYNAMIC OPTIMIZATION OF THE SIZING AND BLADE DESIGNS OF COROTATING COAXIAL ROTORS 审中-公开

    公开(公告)号：WO2022093109A1

    公开(公告)日：2022-05-05

    申请号：PCT/SG2020/050745

    申请日：2020-12-14

    Applicant: ST ENGINEERING AEROSPACE LTD.

    Inventor： CHAN, Keen Ian

    IPC: B64C27/10 ,  B64C27/467

    Abstract: A method and system for generating a set of values for respective ones of a set of parameters used in determining rotor blade profiles for a corotating coaxial rotor system. The method comprises establishing a ratio of respective desired thrusts of an upper rotor and a lower rotor of the corotating coaxial rotor system based on a desired performance of the corotating coaxial rotor system; and determining the set of values of the set of parameters from the desired thrusts ratio based on an equal rotation speed condition between the upper rotor and the lower rotor of the corotating coaxial rotor system, wherein the set of parameters includes torques of the upper rotor and the lower rotor.

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