To suppress noise of a cruise rotor.SOLUTION: A propulsion force generation device comprises a propeller section 30 which has a propeller 34 and a duct 38 covering a periphery of the propeller 34. The duct 38 is made up of a cylinder 50 arranged around the propeller 34, a hub 52 arranged inside the cylinder 50, and a plurality of duct stators 54 radially extended from the hub 52 to the cylinder 50. The hub 52 and each duct stator 54 are arranged posterior to the propeller 34.SELECTED DRAWING: Figure 2
【課題】クルーズロータの騒音を抑制する。【解決手段】推力発生装置は、プロペラ34と、プロペラ34の周囲を覆うダクト38とを有するプロペラ部30を備え、ダクト38は、プロペラ34の周囲に配置される円筒50と、円筒50の内側に配置されるハブ52と、ハブ52から円筒50まで放射状に延びる複数のダクトステータ54とを有し、ハブ52及び各々のダクトステータ54は、プロペラ34の後方に配置される。【選択図】図2
PROPULSION FORCE GENERATION DEVICE
推力発生装置
2024-03-13
Patent
Electronic Resource
Japanese
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