AIRCRAFT TURBOFAN HAVING A COWL ARTICULATED IN ROTATION AND A SYSTEM FOR DEPLOYING SAID COWL

    公开(公告)号:US20220106927A1

    公开(公告)日:2022-04-07

    申请号:US17488725

    申请日:2021-09-29

    Abstract: A turbofan having a fixed structure, a fan, a fan casing surrounding the fan, an outer cowl disposed around the fan casing and mounted so as to be articulated on the fixed structure, and a deployment system that moves the outer cowl from a closed position to an open position. The deployment system has a guide rail fastened around the fan casing, a slider that is able to move along the guide rail and has a shoe. An activation system of the deployment system moves the slider and the shoe alternately in one direction or the other along the guide rail. One end of an arm of the deployment system is mounted to be articulated on the shoe and another end is mounted to be articulated on the outer cowl. Such a motorized deployment system makes it possible to save space and mass in the turbofan.

    TURBOFAN ENGINE COMPRISING A SET OF ROTATABLE BLADES FOR BLOCKING OFF THE BYPASS FLOW DUCT AND REDIRECTING THE AIR FLOW

    公开(公告)号:US20210285372A1

    公开(公告)日:2021-09-16

    申请号:US17199960

    申请日:2021-03-12

    Abstract: An engine including a motor and a nacelle and a duct between the nacelle and the motor. The nacelle includes a fixed structure, a mobile assembly that is mobile between an advanced position and a retracted position to define a window between the duct and the outside, and a plurality of blades that are mobile in rotation between a stowed position and a deployed position, each one extending on either side of its axis of rotation with a first arm and a second arm. In the stowed position, the first arm is outside the duct and the second arm is inside the nacelle, and where, in the deployed position, the first arm is across the duct and the second arm projects out of the nacelle. With such blades, the flow of air is optimally directed towards the front without it being necessary to provide cascades.

    TURBOFAN HAVING A SET OF ROTATABLE BLADES FOR BLOCKING OFF THE DUCT FOR THE BYPASS FLOW

    公开(公告)号:US20220403797A1

    公开(公告)日:2022-12-22

    申请号:US17844280

    申请日:2022-06-20

    Abstract: A turbofan with a nacelle having a slider that is movable between an advanced position and a retracted position to open a window between a duct and the outside, blades, each one being able to move in rotation between a stowed position and a deployed position, and a maneuvering system that moves each blade, a transmission arrangement that rotates the blades one after the other, a drive system that converts the translational movement of the slider into a rotational movement of a first blade and that has a ball screw system, an epicyclic gear train, and an assembly of arms and levers.

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