AIRCRAFT PROPULSION SYSTEM COMPRISING A NACELLE EQUIPPED WITH AN IMPROVED ARTICULATION SYSTEM

    公开(公告)号:US20240239508A1

    公开(公告)日:2024-07-18

    申请号:US18411190

    申请日:2024-01-12

    CPC classification number: B64D29/06

    Abstract: A propulsion system comprising a chassis, a fan cowl, an articulation system fixed between the chassis and the fan cowl and comprising a shaft with two offset cylinders in which a central cylinder is movably mounted in rotation on the chassis and wherein a lateral cylinder is movably mounted in rotation on the fan cowl, a blocking device limits the rotation of the central cylinder relative to the chassis between a closed position and an intermediate position, and a stopping device allows rotation of the fan cowl between the intermediate position and the open position and preventing rotation of the fan cowl beyond the intermediate position.

    INTERNAL STRUCTURE OF A PRIMARY EXHAUST DUCT

    公开(公告)号:US20190162079A1

    公开(公告)日:2019-05-30

    申请号:US16195142

    申请日:2018-11-19

    Abstract: An internal structure of a primary exhaust duct of a turbomachine. The internal structure comprises a primary wall comprising a surface of revolution, allowing air to pass through the orifices and forming an internal surface of the primary exhaust duct, an interior skin, comprising a surface of revolution, arranged inside the primary wall and extending between an upstream flank for facing toward the front of the turbomachine and a downstream flank for facing toward the rear of the turbomachine, and a plurality of spacers angularly distributed around a periphery of the interior skin and fixed between the primary wall and the interior skin. The particular way in which the interior wall is fixed makes the internal structure easier to construct and allows attenuation of noise at chosen frequencies.

Patent Agency Ranking