Bent combustion chamber from a turbine engine

Abstract

The invention discloses a bent combustion chamber from a turbine engine. The invention relates to a turbine engine combustion chamber including: an outer annular housing; a flame tube (20) connected to the outer housing, said flame tube (20) including an inner annular wall (20b) and an outer annular wall (20a) that define a first radial inlet portion of the flame tube and a second axial outlet portion of the flame tube, the flame tube also including a chamber base (30) located at the inlet of the flame tube (20); and a fuel injection system (40') configured to inject fuel into the flame tube via the inlet of the flame tube. The injection system includes an injector axis (AA'), parallel to the first portion, and an air manifold (40'd) configured to move air towards twists in the injection system (40'). The twists are arranged around an implantation axis parallel to the injector axis. The air manifold includes a circular portion around the injector axis. The circular portion, from whichextends an opening, forms an air inlet of the manifold. The opening is configured to place the entering air flow in rotation about the implantation axis so that said air flow is supplied to the twists.

Description

technical field [0001] The present invention relates to the field of combustion chambers for turbine engines, and more particularly to the construction and attachment of flame tubes in combustion chambers of turbine engines. Background technique [0002] in a known manner and with reference to figure 1 , downstream of the high-pressure compressor (not shown), the turbine engine comprises a combustion chamber delimited by a concentric, inner rotationally symmetric casing 1b and an outer rotationally symmetric casing 1a. [0003] The combustion chamber includes a flame tube 2 disposed in a space defined by the inner casing 1b and the outer casing 1a. [0004] The flame tube 2 is delimited by an inner wall 2 b called the inner sleeve and an outer wall 2 a called the outer sleeve and a chamber base plate 3 serving as a support for the injector 4 . [0005] In addition, the combustion chamber also includes a fairing 5 placed in front of the chamber base to partially cover the i...

AI Technical Summary

Problems solved by technology

However, it has the main disadvantage of the high surface-to-volume ratio, which makes cooling of the walls of the flame tubes difficult and hinders their life

[0008] On the other hand, the problem with the direct axial chamber type is that the axial space required for the flame tube is quite large

[0009] Another problem is that the attachment of the cowling, the inner wall 2b and the outer wall 2a and the base plate is subject to the vibrations of the turbine engine and the thermal expansion of the sub-components of the chamber module, which may impair its ability to operate, making it often complicated to provide advanced vibration and thermal compensation system

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