Device for attaching an aircraft engine and aircraft comprising at least one such device

An engine assembly comprising:

• an engine;
• and
• an engine attachment device that includes a rigid structure and means for attachment of the engine to the rigid structure, the means for attachment including a load reacting device for thrust generated by the engine, the load reacting device including two link rods mechanically connected to a balance beam at a rear that is fixed to the rigid structure to which the balance beam is mechanically connected, two additional fittings fixed to the rigid structure to which the link rods are mechanically connected with play, in which mechanical connections between the balance beam and a main fitting and between the link rods and the additional fittings each include a pin orthogonal to a force transmission mid-plane, and the pin for each of the mechanical connections is an insertion pin for each of the mechanical connections,
• wherein the load reacting device further includes an intermediate balance beam fitting that mechanically connects the balance beam to the main fitting, the pin orthogonal to the force transmission mid-plane passing through the intermediate fitting of the balance beam, and two link rod intermediate fittings, each mechanically connecting the link rods to the additional fittings, and the pins orthogonal to the force transmission mid-plane passing through the link rod intermediate fittings.

A method for mounting an aircraft engine with an attachment device including a rigid structure and means for attachment of the engine to the rigid structure, the means for attachment including a load reacting device for thrust generated by the engine, the load reacting device including two link rods mechanically connected to a balance beam at a rear that is fixed to the rigid structure to which the balance beam is mechanically connected, two additional fittings fixed to the rigid structure to which the link rods are mechanically connected with play, in which mechanical connections between the balance beam and a main fitting and between the link rods and the additional fittings each include a pin orthogonal to a force transmission mid-plane, and the pin for each of the mechanical connections is an insertion pin for each of the mechanical connections, the load reacting device further including an intermediate balance beam fitting that mechanically connects the balance beam to the main fitting, the pin orthogonal to the force transmission mid-plane passing through the intermediate fitting of the balance beam, and two link rod intermediate fittings, each mechanically connecting the link rods to the additional fittings, and the pins orthogonal to the force transmission mid-plane passing through the link rod intermediate fittings, the method comprising:

• a) vertical hoisting of the engine towards the rigid structure;
• b) alignment of the fittings fixed to the rigid structure and of the fittings firmly attached to the engine;
• and
• c) realization of mechanical connections between the fittings fixed to the rigid structure and the fittings that are mechanically connected to the engine by lateral pinning of the fittings.