Degassing tube and ejection cone for a turbine engine, as well as tool for assembly thereof

Locating and adjusting tool for the assembly of a unit of a turbine engine of an aircraft, the unit comprising a degassing tube and an ejection cone,

• the degassing tube having an extended form and comprising first fixing means to a first element of the turbine engine at a first longitudinal end, the degassing tube also comprising at an external periphery of the degassing tube and at a distance from said first longitudinal end first centering means configured to co-operate with second centering means of the ejection cone designed to be traversed by said degassing tube, said first centering means being formed by raised surfaces of the degassing tube that extend annularly around an outside of the degassing tube,
• the ejection cone having an extended form and comprising second fixing means to a second element of the turbine engine at a second longitudinal end, the ejection cone also comprising at an inner periphery of the ejection cone and at a distance from said second longitudinal end second centering means configured to co-operate with first centering means of the degassing tube designed to traverse said ejection cone, the ejection cone comprising at least one annular stiffener at the inner periphery, said second centering means being fixed in a detachable manner to said at least one annular stiffener, said second centering means comprising an annular row of tabs configured to be supported radially on said first centering means,
• wherein the locating and adjusting tool comprises:
• a first ring configured to be applied and fixed to the second element of the turbine engine and to also be, in a sequence manner, applied and fixed to the second longitudinal end of larger diameter of said ejection cone, said first ring being configured to be traversed by said degassing tube,
• a second ring configured to be traversed by said degassing tube and to be accommodated in said ejection cone,
• ring connecting struts, which extend between the first and second rings and are fixed to the first and second rings, these ring connecting struts being configured to be accommodated in said ejection cone, and
• a third ring configured to be traversed by said degassing tube and to carry, in a detachable and sequenced manner, a tubular finger comprising third centring means approximately identical to the first centring means of said degassing tube, said third ring being fixed to said second ring by fourth means allowing an adjustment of the misalignment of the axes of said second and third rings.