# US 2019/0315477 A1 · Aircraft engine attachment comprising inclined fixing elements, aircraft comprising said engine attachment and method for fixing an engine to an aircraft pylon using said engine attachment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0315477 A1 - Document ID: US20190315477A1 - Status: Published application - Kind: A1 - Application number: 16/363,513 - Filed: 2019-03-25 - Published: 2019-10-17 - Earliest claimed: 2018-04-11 - Assignees: Airbus Operations GmbH - Applicants: Airbus Operations SAS - Inventors: Jean GELIOT; Thomas DEFORET; Adeline SOULIE; Olivier DUBOIS - Web page: https://patentgrep.com/patent/US20190315477A1 ## CPC - B64D 27/404: {Suspension arrangements specially adapted for supporting vertical loads} - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT ## Abstract An engine attachment configured to link an engine and an aircraft pylon comprising a first end fitting having two mutually parallel wings, a joining piece positioned between the first end fitting wings and linked to the first end fitting by a link system, fixing elements, linking the first end fitting and the pylon, including first and second fixing elements positioned between the first end fitting wings which are inclined by an angle of between 10 and 45° to be able to be put in place and removed in the presence of the joining piece linked to the first end fitting by the link system. The inclined fixing elements absorb lateral loads. The joining piece and the first end fitting are linked by the link system before the engine is fixed to the pylon. The engine is fixed to the pylon by putting the fixing elements in place. ## Claims ### Claim 1 An engine attachment configured to link an engine and an aircraft pylon, the engine attachment comprising: a first end fitting having a plate, configured to be pressed against a contact surface of the pylon, and two mutually parallel wings linked to the plate, a joining piece, configured to be linked to the engine, positioned between the wings of the first end fitting and linked to the first end fitting by a first link system, fixing elements, configured to link the first end fitting and the pylon, including first and second fixing elements positioned between the wings of the first end fitting, for each of the fixing elements, through holes provided in the plate of the first end fitting, wherein, for each of the first and second fixing elements, the through holes of the plate of the first end fitting have axes of revolution forming an angle of between 10 and 45° with a vertical median plane, in order for the first and second fixing elements to be able to be put in place and removed in the presence of the joining piece linked to the first end fitting by the first link system. ### Claim 2 (depends on 1) The engine attachment according to claim 1, the engine attachment comprising a U-shaped reinforcement which has a base, pressed against the plate of the first end fitting, and two wings pressed against the wings of the first end fitting, characterized in that the reinforcement comprises, for each of the first and second fixing elements, a through hole having an axis of revolution aligned with that of the corresponding through hole of the plate of the first end fitting. ### Claim 3 (depends on 2) The engine attachment according to claim 2, wherein the reinforcement comprises, for each of the first and second fixing elements, a boss having a bearing surface which surrounds the through hole of the reinforcement and which is at right angles to the axis of revolution of the through hole of the reinforcement. ### Claim 4 (depends on 2) The engine attachment according to claim 2, wherein the reinforcement comprises a single boss having, for each of the first and second fixing elements, a bearing surface which surrounds the through hole of the reinforcement and which is at right angles to the axis of revolution of the through hole of the reinforcement. ### Claim 5 (depends on 2) The engine attachment according to claim 2, wherein the rear engine attachment comprises, for each of the first and second fixing elements, a washer inserted between a head of the fixing element and the reinforcement or the plate of the first end fitting, said washer comprising two faces which form an angle approximately equal to the angle a provided between the axes of revolution of the through holes and the vertical median plane. ### Claim 6 (depends on 1) The engine attachment according to claim 1, wherein the angle between the axes of revolution of the through holes and the vertical median plane is determined to allow the first and second fixing elements to be put in place or removed in the presence of the joining piece positioned between the wings of the first end fitting, the angle being the smallest possible angle. ### Claim 7 (depends on 1) An aircraft comprising an engine attachment according to claim 1 linking an engine and an aircraft pylon. ### Claim 8 (depends on 7) The aircraft according to claim 7, wherein the pylon comprises, for each of the first and second fixing elements, a bearing surface which surrounds the corresponding through hole of the pylon and which is at right angles to the through hole. ### Claim 9 (depends on 7) The aircraft according to claim 7, wherein the rear engine attachment comprises, for each of the first and second fixing elements, a washer inserted between a nut of the fixing element and the pylon, said washer comprising two faces which form an angle approximately equal to the angle provided between the axes of revolution of the through holes and the vertical median plane. ### Claim 10 (depends on 1) A method for fixing an engine of an aircraft to an aircraft pylon, said aircraft comprising an engine attachment according to claim 1, wherein, prior to the fixing of the engine to the pylon, the joining piece is linked to the engine and the first end fitting is linked to the joining piece using the first link system, and wherein the engine is fixed to the pylon by putting in place the fixing elements.