公开(公告)号：US20200378340A1

公开(公告)日：2020-12-03

申请号：US16827021

申请日：2020-03-23

Applicant: Airbus Operations SAS

Inventor： Antoine COUSIN ,  Frédéric RIDRAY

IPC: F02K1/72 ,  F02K1/76

Abstract: A turbofan engine with a nacelle including a runner translationally mobile between advanced and back-off positions to open a window between a stream and an outside, a plurality of blades, each rotatable on the runner between retracted and deployed positions, and a maneuvering system displacing each blade and comprising, for each blade, a shaft rotatable on the runner and to which the blade is fixed, and a toothed segment on the shaft, and a toothed arc rotatable on the runner about a longitudinal axis, the tooth arc teeth meshing with the toothed segment teeth, a slip translationally mobile on the runner in a plane at right angles to the longitudinal axis between first and second positions, a connecting rod mounted articulated between the slip and the toothed arc, a rib integral to the fixed structure, and a guiding U integral to the slip and which straddles the rib.

公开(公告)号：US20200164998A1

公开(公告)日：2020-05-28

申请号：US16695375

申请日：2019-11-26

Applicant: Airbus Operations SAS

Inventor： Claire MAFFRE ,  Jérôme GAILLARDO ,  Lionel CZAPLA ,  Florian RAVISE ,  Laurent CALIMAN ,  Laurent CAZEAUX ,  Antoine COUSIN ,  Denis BROSSARD

IPC: F02K1/34 ,  F02C7/24 ,  G10K11/172 ,  G10K11/162

Abstract: An acoustic absorption structure comprising a plurality of resonators. Each resonator comprises a first chamber which has a first mouthpiece delimited by an edge pressed against an inner surface of a porous zone of a skin so that the first chamber and the skin delimit a first cavity, a second chamber, in which is positioned the first chamber, which delimits, with the first chamber, a second cavity, at least one acoustic orifice passing through the first chamber, at least one drainage orifice passing through the first chamber and at least one drainage hole passing the second chamber, each drainage orifice and each drainage hole being configured to limit an accumulation of fluid in the resonator. Also, an aircraft propulsive assembly or an aircraft comprising the acoustic absorption structure are provided.

公开(公告)号：US20200025128A1

公开(公告)日：2020-01-23

申请号：US16203829

申请日：2018-11-29

Applicant: Airbus Operations SAS

Inventor： Antoine COUSIN ,  Laurent CALIMAN ,  Jérôme GAILLARDO

IPC: F02K1/00 ,  B64C7/02 ,  B64D27/18 ,  B64D29/06 ,  F02K1/40 ,  F02K1/80

Abstract: A dual flow jet engine comprising a core, a surrounding nacelle, delimiting, with the core, a secondary jet, and having a structure and an outer skin fixed to the structure. The nacelle comprises an annular structure through which windows delimited by the annular structure are produced between the secondary jet and the outside. Each window has a regulation system comprising at least one shutter having an outer face, a leading and a trailing edge. Each shutter is mounted articulated at the nacelle structure window at its leading edge and is mobile between a closed position wherein the trailing edge is close to the outer skin and so the shutter closes the window and an open position where the shutter trailing edge moves outwards away from the outer skin to free the window, and for each shutter, a maneuvering system to displace the shutter between the open and closed positions.

公开(公告)号：US20210300578A1

公开(公告)日：2021-09-30

申请号：US17210621

申请日：2021-03-24

Applicant: Airbus Operations SAS

Inventor： Antoine COUSIN ,  Laurent CALIMAN ,  Jérôme GAILLARDO

IPC: B64D29/06

Abstract: An aircraft nacelle including an automatically-operated locking device for limiting deformations of the cowl. This automatically-operated locking device includes at least one locking post connected to the cowl, at least one latch able to move between a first position corresponding to a locked state in which the latch prevents the locking post from becoming distanced from a fixed structure and a second position corresponding to an unlocked state in which the latch allows the locking post to become distanced from the fixed structure, at least one return system configured to hold the latch in its second position corresponding to the unlocked state, the cowl holding the latch in its first position when the cowl is in the closed position and allowing the latch to pivot toward its second position when the cowl is in the open position.

公开(公告)号：US20200231296A1

公开(公告)日：2020-07-23

申请号：US16745627

申请日：2020-01-17

Applicant: Airbus Operations SAS

Inventor： Antoine COUSIN ,  Laurent CALIMAN ,  Jérôme GAILLARDO

IPC: B64D29/06 ,  F01D25/24 ,  B64D27/18

Abstract: A nacelle comprising a fixed structure with a fixed cowl and a duct, a mobile assembly with a chassis forming a frame and a mobile cowl, the chassis being mobile, relative to the fixed structure, in translation between an advanced position and a retracted position to open an opening through the frame between the duct and the outside. The mobile assembly comprises at least one threaded rod parallel to the direction of displacement and fixed to the chassis through the frame. The fixed structure comprises an outer, an inner, and at least one intermediate box fixed to the inner box and to the outer box. For each threaded rod, the fixed structure comprises a motorized ball nut which meshes with the threaded rod, and an actuator which turns the ball nut and is fixed to at least one box from among the outer, the inner, or the intermediate box.