Patent ID: 9145942
Filing Date: 2015-09-29
Classification: B64D,F01D,F02C,F05D,F16C,F16F,Y02T

Abstract:
1. A prestressing device for an assembly in a turbine engine which extends about an axis between a first plane substantially perpendicular to the axis and a second plane substantially parallel to the first plane and axially offset with respect to the first plane, the device comprising: at least three deformation zones, wherein the deformation zones extend within the first plane; between each deformation zone, a planar contact surface extending within the second plane; and an inclined transition zone between each deformation zone and the contact surface adjacent to the deformation zone, wherein each inclined transition zone comprises a first rounded end part connected to one of the deformation zones, a second end part connected to one of the planar contact surfaces, and an essentially planar central part between the first and second end parts, wherein the prestressing device is an annular element presenting an inner circumferential surface and an outer circumferential surface, and wherein each of the deformation zones, each of the planar contact surfaces, and each of the inclined transition zones extend radially from the inner circumferential surface to the outer circumferential surface.