Engine mounting structure for aircraft having a beam spreader connected at four points

摘要

An engine mounting structure for aircraft including an engine mounting system including a device for transmission of the thrust efforts fitted with two lateral connecting rods and with a spreader beam mounted in connected fashion on a support element, through a principal connecting device defining a principal spreader beam hinge line positioned in a plane. The spreader beam is also mounted in connected fashion with some play on the element, using a secondary connecting device located at some distance, as seen from above, from the device, and defining a secondary spreader beam hinge line, which is also positioned in a plane. The rotation of the spreader beam is stopped by device coming into contact with the spreader beam.

主权项

1. An engine mounting structure for an aircraft engine, comprising:
a rigid structure forming a caisson together with an engine mounting system mounted on the rigid structure and comprising a device to transmit thrust efforts generated by the engine, comprising two lateral connecting rods and a spreader beam mounted in connected fashion on a support element that is fixed relative to the caisson, through a principal spreader beam connecting device positioned between two lateral ends of the spreader beam on to which the two lateral connecting rods are respectively connected, wherein the support element comprises fittings on opposite lateral ends of the support element, each fitting including a cap on to which an upper end of a shackle is connected through a shaft aligned in a longitudinal direction of the rigid structure, and a lower end of the shackle is connected to a bracket fixedly mounted on a casing of the aircraft engine, wherein the principal spreader beam connecting device defines a principal spreader beam hinge line positioned in a plane that extends in the vertical direction and the longitudinal direction of the rigid structure, wherein the spreader beam is moreover mounted in connected fashion on the support element, using a secondary spreader beam connecting device located at a distance, seen from above, from the principal spreader beam connecting device, and defining a secondary spreader beam hinge line that is also positioned in the plane, wherein the secondary spreader beam connecting device is supported by one of the spreader beam or the support element, and traversing with a play the other of the spreader beam or the support element, wherein the secondary spreader beam connecting device is disposed behind the principal spreader beam connecting device and behind the fittings of the support element, and wherein in an event of a failure of either of the two lateral connecting rods, the rotation of the spreader beam around the principal spreader beam hinge line is stopped by the secondary spreader beam connecting device coming into contact with the spreader beam.