DUCTED FAN TURBINE ENGINE COMPRISING A SYSTEM INVOLVING SCREENS FOR BLOCKING OFF THE DUCT FOR THE SECONDARY FLOW

    公开(公告)号:US20220025832A1

    公开(公告)日:2022-01-27

    申请号:US17379746

    申请日:2021-07-19

    Abstract: A ducted fan turbine engine with a nacelle and a duct for a secondary flow. The nacelle comprises a fixed structure. A mobile cowl is able to move between a forward position and a backward position to define an opening between the duct and the outside. A plurality of rollers are mounted to freely rotate on the mobile cowl. For each roller there is a flexible screen with a first edge fixed to the roller and a second edge, in which the screen is able to adopt a furled position, wound around the roller, or a deployed position deployed across the duct. A deployment mechanism is arranged to move each second edge to move the screen from the furled position to the deployed position. A furling mechanism is arranged to drive each roller in rotation to move the associated screen from the deployed position to the furled position.

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