Abstract: A turbofan including a motor, nacelle and a secondary duct therebetween. The nacelle includes a fan casing with front and rear parts, a fixed assembly including a fixed structure and the front part, a mobile assembly with an openwork frame, a mobile cowl and the rear part and mobile between advanced and retracted positions in which a window is open between the secondary duct and the exterior of the nacelle, inner doors articulated between stowed and deployed positions, a first actuator for moving the frame and a second actuator for moving each inner door. The rear part is divided into outer flaps mobile between lowered and raised positions and is moved by an electric motor. A jet engine accordingly serves to increase retraction distance by freeing up part of the fan cowl and improve orientation of flow of air passing through the window by orienting the outer flaps.

Abstract: A turbofan comprising a fan casing and a nacelle comprising a cowl translatable between an advanced position and a pushed-back position in which the mobile cowl and the fan casing define a window therebetween. The nacelle also comprises reverser flaps, each reverser flap being mounted in a linked manner on the mobile assembly between a closed position in which it obstructs the window and an open position in which it does not obstruct the window. The nacelle also has an impelling mechanism comprising a lever arm rotatable on the mobile assembly and having a roller, a connecting rod mounted rotatably between the reverser flap and the lever arm, and a channel receiving the roller, the channel having a front part parallel with the translation direction and a rear part extending after the front part and oriented inward as it progresses from the front toward the rear.

Abstract: A jet engine comprising an engine, a fan casing and a nacelle comprising a fixed structure and a thrust reversing system having a mobile assembly with a mobile cowl and a frame. The mobile assembly is translationally mobile on the fixed structure between an advanced and a retracted position to define a window between the secondary jet and outside of the nacelle. Inner and outer doors are mounted articulated between a stowed and a deployed position. For each pair of doors, a runner is translationally mobile between a first and second position. Switching each door of the pair from the stowed to the deployed position is mechanically associated with the runner switching from the first to the second position. For each runner, an actuator ensures the translational runner displacement from the first to the second position. Each runner comprises two portions fastened to one another to adjust the mechanism.

Abstract: A turbofan comprising a motor and a nacelle, surrounding the motor, where a duct for a bypass flow is delimited between the nacelle and the motor and in which a flow of air flows. The nacelle comprises reverser flaps where each one is articulated between a stowed position in which it is not in the bypass duct and a deployed position in which it is across the bypass duct. The turbofan has at least one reverser flap with at least one leakage window configured to allow airflow in the deployed position. The at least one reverser flap has at least one fin extending across the leakage window.

Abstract: A ducted fan turbojet including a nacelle including a fixed structure, a thrust reverser system having a frame, a mobile structure fastened to the frame, inner doors and outer doors hinged at the frame. The frame is mobile in translation on the fixed structure between a forward position and a rear position so as to define a window between the fixed structure and the mobile structure, the window being open between a bypass duct and the exterior of the nacelle. Each door is mobile between a stowed position and a deployed position and the mobile structure is assembled hinged on the frame via at least one hinge whose axis of rotation is globally parallel to a longitudinal axis of the ducted fan turbojet.

Abstract: A nacelle for a bypass turbojet engine having a secondary flow path, the nacelle exhibiting an open window between the secondary flow path and the outside of the nacelle and comprising a reverser system comprising doors in which each door is able to move between a stowed position in which the door closes off the window and a deployed position in which the door does not close off the window. For each door, at least one locking system is configured to lock the door in the stowed position, to unlock the door automatically when the door leaves its stowed position and to lock the door automatically when the door arrives in its stowed position.

Abstract: A nacelle having a window open between a secondary jet and the outside of the nacelle and comprising a fixed structure and a thrust-reversing system having a frame and outer doors articulated on the frame. The frame is translationally mobile on the fixed structure between an advanced position and a retracted position. Each outer door is mobile between a stowed position and a deployed position. The nacelle comprises at least one anti-vibration system which comprises a chock fixed to the fixed structure and having a hole, and a finger fixed to the outer door. The finger and the hole are configured so that the finger lodges in the hole when the frame is in advanced position. Such a nacelle makes it possible to limit the vibrations of the outer doors when they are in stowed position and before the mobile frame begins to be displaced to the retracted position.

Abstract: A turbojet engine comprising an engine, a nacelle comprising a fan case, an intermediate case having a part forming a hub and an outer shroud radially spaced away from the hub by a secondary, or bypass, flow path and fixed to the hub via arms, in which the outer shroud is situated to the rear and in the continuity of the fan case, a fixed structure fixed to the outer shroud, a mobile assembly mounted with the ability to effect translational movement on the fixed structure, and a ramp fixed to the outer shroud and configured to direct the secondary or bypass flow to exit the outer shroud. Such a turbojet engine makes it possible to simplify assembly and among other things, makes it possible to fix the ramp directly to the outer shroud.

Abstract: A turbofan with a fan casing and a nacelle which comprises a fixed structure, a movable assembly with a movable cowl and a slide, which is translationally movable between an advanced position and a retreated position in which the movable cowl is moved away from the fan casing in order to define a window open between a duct and the outside of the nacelle, a plurality of blades, each being mounted rotatably on the slide, where each blade is movable between a retracted position in which the blade is outside of the duct and a deployed position in which the blade is across the duct, a set of actuators for moving the slide and an operating system configured to move each blade from the retracted position to the deployed position, and vice versa.

Abstract: A turbojet engine including an engine, a fan casing and a nacelle including a fixed structure and a thrust-reversing system having a mobile assembly with a mobile cowl and a frame, in which the mobile assembly is translationally mobile on the fixed structure between an advanced position and a retracted position to define a window between the secondary jet and the outside of the nacelle, inner doors and outer doors, a runner translationally mobile between a first position and a second position, in which each door is mounted articulated by a rear edge on the runner between a stowed position and a deployed position, an actuator for ensuring the translational displacement of the runner from the first position to the second position and an actuator for ensuring the displacement of the frame from the advanced position to the retracted position.

Abstract: A engine comprising a fan casing and a nacelle, the nacelle comprising a fixed structure and a thrust reversing system having a mobile assembly with a mobile cowl and a frame. The mobile assembly is translationally mobile on the fixed structure between an advanced position and a retracted position to define a window between the secondary jet and the outside of the nacelle. Inner and outer doors are mounted articulated between a stowed position and a deployed position. For each pair of doors, a runner is translationally mobile between a first and a second position. The switching from the stowed position to the deployed position of each door is mechanically associated with the switching of the runner from the first position to the second position and vice versa. For each runner, an actuator ensures the translational displacement of the runner from the first position to the second position.

Abstract: A turbofan comprising a fan casing and a nacelle comprising a cowl translatable between an advanced position and a pushed-back position in which the mobile cowl and the fan casing define a window therebetween. The nacelle also comprises reverser flaps, each reverser flap being mounted in a linked manner on the mobile assembly between a closed position in which it obstructs the window and an open position in which it does not obstruct the window. The nacelle also has an impelling mechanism comprising a lever arm rotatable on the mobile assembly and having a roller, a connecting rod mounted rotatably between the reverser flap and the lever arm, and a channel receiving the roller, the channel having a front part parallel with the translation direction and a rear part extending after the front part and oriented inward as it progresses from the front toward the rear.

Abstract: A jet engine including a motor with a fan casing and a nacelle which includes a mobile cowl and a main slider that is mobile in translation between an advanced position and a retracted position in which the mobile cowl and the fan casing define, between them, a window. The nacelle also includes reverser flaps and exterior flaps, each one being mounted articulated on the main slider between a stowed position in which it obstructs the window and a deployed position in which it does not obstruct the window, a secondary slider that is mobile in translation on the main slider between a first position and a second position, a transmission system making each reverser flap and exterior flap pass from the stowed position to the deployed position when the secondary slider passes from the first position to the second position, and a set of actuators that bring about a movement in translation of the main slider and of the secondary slider.

Abstract: A propulsion system comprising a pylon, a turbomachine with a core and a nacelle. The nacelle comprises two inner cowls and two outer cowls around the inner cowls, where each outer cowl is mounted articulated via hinges and is mobile between a closed position in which the outer cowl is tightened around the core and an open position in which the outer cowl is separated from the core. Furthermore, each inner cowl is mounted articulated on the pylon via fixed hinges and is mobile between a closed position in which the inner cowl is tightened around the core and an open position in which the inner cowl is separated from the core. The placement of the hinges between the pylon and each inner cowl makes it possible to separate the rotation of the inner cowl from the rotation of the associated outer cowl.

Abstract: A turbofan including a motor with a fan casing and a nacelle which includes a mobile cowl and a main slider bearing gratings and being mobile in translation between an advanced position and a retracted position in which the mobile cowl and the fan casing define, between them, a window. The nacelle also includes reverser flaps, each one being mounted articulated on the main slider between a closed position in which it obstructs the window and an open position in which it does not obstruct the window, a secondary slider mounted mobile in translation on the main slider between a first position and a second position, a transmission system configured to make each reverser flap pass from the closed position to the open position when the secondary slider passes from the first position to the second position, and a set of actuators that bring about a movement in translation of the main slider, and of the secondary slider.

Abstract: A closing system for a fan cowling on a jet engine of an aircraft that has at least one assembly including a male contrivance integral with the cowling, and a female contrivance integral with the jet engine that has a lower element forming at least one first guide ramp and an upper element forming at least one second guide ramp, with the aforementioned female contrivance being suitable on the one hand for guiding the male contrivance during the opening and/or the closing of the fan cowling, and on the other hand providing a limitation of the radial and circumferential displacements of the male contrivance.

Abstract: An engine unit for an aircraft including an engine, a device for hooking the engine, and a nacelle surrounding the engine and provided with fan cowls, the device for hooking including a rigid structure and a front aerodynamic structure whereon the fan cowls are articulated, the front aerodynamic structure including a cradle with a rear mechanism of hooking mounted on the rigid structure. The cradle also includes a front mechanism of hooking mounted on an air inlet of the nacelle.

Abstract: An engine unit for an aircraft including an engine, a device for hooking the engine, and a nacelle surrounding the engine and provided with fan cowls, the device for hooking including a rigid structure and a front aerodynamic structure whereon the fan cowls are articulated, the front aerodynamic structure including a cradle with a rear mechanism of hooking mounted on the rigid structure. The cradle also includes a front mechanism of hooking mounted on an air inlet of the nacelle.

Abstract: A closing system for a fan cowling on a jet engine of an aircraft that has at least one assembly including a male contrivance integral with the cowling, and a female contrivance integral with the jet engine that has a lower element forming at least one first guide ramp and an upper element forming at least one second guide ramp, with the aforementioned female contrivance being suitable on the one hand for guiding the male contrivance during the opening and/or the closing of the fan cowling, and on the other hand providing a limitation of the radial and circumferential displacements of the male contrivance.