AIRCRAFT ENGINE NACELLE PROVIDED WITH AN ICING PROTECTION SYSTEM AND ASSOCIATED PROTECTION METHOD

    公开(公告)号:US20190308737A1

    公开(公告)日:2019-10-10

    申请号:US16377813

    申请日:2019-04-08

    Abstract: An aircraft engine nacelle comprising an icing protection system and an icing protection method for such an aircraft engine nacelle. The aircraft engine nacelle comprises an air inlet comprising a lip, a tubular air inlet piece and an icing protection system. The icing protection system comprises an icing prevention means powered continuously by a first electrical energy source and wholly or partly covering the lip, a de-icing means powered by a second electrical energy source covering the tubular air inlet piece and a controller configured to acquire a current total air temperature value, and control the second electrical energy source as a function of the current total air temperature value.

    AIR INTAKE STRUCTURE FOR AN AIRCRAFT NACELLE
    15.
    发明申请

    公开(公告)号:US20180230906A1

    公开(公告)日:2018-08-16

    申请号:US15892618

    申请日:2018-02-09

    Abstract: An air intake structure for an aircraft nacelle including an air intake lip with a U-shaped cross section which is open towards the rear, with a rear end, an acoustic panel including an inner wall, wherein the air intake lip has at a rear end a contact surface oriented towards the inside of the air intake lip, in that the contact surface takes the shape of a bevel which points towards the rear and against which the inner wall is placed, in that at the point of the bevel, the inner wall runs on from the air intake lip and in that level with the contact surface, the air intake lip is fixed to the inner wall by first fasteners. The bevelled shape restricts the possibility of dust and water being halted in their progress and blocking up the air intake structure as a result.

    NACELLE FOR AN AIRCRAFT ENGINE INCLUDING MEANS PREVENTING THE DEFORMATION OF THE ARTICULATED FAN COVERS

    公开(公告)号:US20200070991A1

    公开(公告)日:2020-03-05

    申请号:US16558704

    申请日:2019-09-03

    Abstract: A nacelle including a fixed structure, a central cover mounted on the fixed structure, a fan cover mounted on and articulated to the central cover between an open position and a closed position, and locking means that are distributed between each fan cover and the fixed structure and that are designed to assume a locked position in which they lock the fan cover to the fixed structure and an unlocked position in which they do not lock the fan cover to the fixed structure, in which the locked position can be adopted only when the fan cover is in the closed position, and in which the unlocked position can be adopted whether the fan cover is in the open or closed position and wherein the locking means are locked and unlocked by a rotation around a longitudinal axis of the nacelle.

    PRODUCTION METHOD FOR AN ACOUSTIC PANEL COMPRISING INSERTS

    公开(公告)号:US20200013385A1

    公开(公告)日:2020-01-09

    申请号:US16460714

    申请日:2019-07-02

    Abstract: A production method for an acoustic panel comprising a step of producing a composite structure, a step of providing inserts, wherein each insert comprises a nozzle formed as a hollow cylinder with a through-bore and a cap comprising a base formed as a cylinder and a cover formed as a cone, and wherein the base is accommodated in the bore, a step of positioning the inserts in the composite structure by penetration of the cover into the composite structure so that the bore opens at one side and the other of the composite structure, a step of polymerizing during which the composite structure with the inserts is polymerized, a step of removing the caps, a first step of fixing a honeycomb structure to the polymerized composite structure, and a second step of fixing a rear skin to the honeycomb structure.

    FROST PROTECTION SYSTEM FOR AN AIRCRAFT ENGINE NACELLE

    公开(公告)号:US20190118955A1

    公开(公告)日:2019-04-25

    申请号:US16156272

    申请日:2018-10-10

    Abstract: A frost protection system for an aircraft engine nacelle, the nacelle comprising an inner shroud provided with at least one acoustic panel and an air intake lip forming a leading edge of the nacelle. The protection system comprises a heat exchanger device including at least one heat pipe configured to transfer heat emitted by a heat source to the at least one acoustic panel.

    STRUCTURE ESTABLISHING A SOUND INSULATOR
    20.
    发明申请

    公开(公告)号:US20180174568A1

    公开(公告)日:2018-06-21

    申请号:US15841514

    申请日:2017-12-14

    Abstract: A structure establishing a sound insulator and including a first plate, a second plate having holes therethrough, and a web stuck between the plates. The web includes a plurality of intermediate strips perpendicular at least to one of the plates, a plurality of folded strips which are folded in a zig-zag formation, each folded strip being arranged between two successive intermediate strips, and establishes, with the intermediate strips, triangular prisms, where, for two folded strips on either side of a same intermediate strip, the generator of the triangular prism of one of the folded strips forms an acute angle with respect to the first plate, and the generator of the triangular prism of the other folded strip forms an obtuse angle with respect to the first plate.

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