Patent ID: 8763406

Claim:
A turbomachine combustion chamber comprising: at an upstream end relative to a gas flow direction, a chamber end wall presenting an opening; a pre-vaporization bowl received in said opening, the pre-vaporization bowl which has an axis and a generally annular shape being floatingly mounted relative to the chamber end wall to move in a predetermined radial direction and being flared downstream so as to form a collar, the collar having a periphery; an air and fuel injector device mounted on the axis of said pre-vaporization bowl; a deflector forming a heat shield being situated around the collar of the bowl on a downstream side of the chamber end wall; and guiding means for guiding movement of the bowl in translation along the predetermined radial direction, wherein the bowl and the deflector are made as a single piece, and the floating movement of the bowl-and-deflector assembly takes place in a sliding plane situated between the deflector and the chamber end wall, wherein the guiding means comprises a threaded portion provided around the bowl to receive a retaining nut bearing against the chamber end wall, the nut being screwed so as to leave the bowl-and-deflector assembly free to float in translation in the predetermined radial direction.