US 12,116,120 B2
Blade-stator system, and vertical takeoff and landing flying device including same
Jae Ho Choi, Changwon-si (KR); and Semi Kim, Changwon-si (KR)
Assigned to HANWHA AEROSPACE CO., LTD., Changwon-si (KR)
Appl. No. 17/911,305
Filed by HANWHA AEROSPACE CO., LTD., Changwon-si (KR)
PCT Filed Mar. 31, 2020, PCT No. PCT/KR2020/004418
§ 371(c)(1), (2) Date Sep. 13, 2022,
PCT Pub. No. WO2021/187655, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 10-2020-0032279 (KR), filed on Mar. 16, 2020.
Prior Publication US 2023/0114141 A1, Apr. 13, 2023
Int. Cl. B64C 29/00 (2006.01); F04D 29/56 (2006.01)
CPC B64C 29/005 (2013.01) [B64C 29/0091 (2013.01); F04D 29/563 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A blade-stator system comprising:
a duct disposed inside a flight body, wherein upper and lower sides of the duct are open, and an inside of the duct is hollow;
a blade assembly installed rotatably inside the duct and including a blade body of which an angle is changeable;
a stator assembly connected to the blade assembly and the duct, supporting the blade assembly; and
a controller electrically connected to the blade assembly and the stator assembly and configured to control driving of the blade body and the stator assembly,
wherein the stator assembly comprises:
a fixed stator connecting the duct to the blade assembly and of which a position is fixed; and
a variable vane rotating with respect to the fixed stator; and
a vane driver connected to the variable vane and transmitting a rotational force to the variable vane,
wherein the variable vane is disposed between the blade assembly and the fixed stator so that air is configured to flow from the blade assembly toward the variable vane and then to the fixed stator, and
wherein the controller adjusts the rotation angle of the variable vane to correspond to a change of a pitch angle of the blade body.