MULTI-BORED COMBUSTION CHAMBER HAVING COUNTER-ROTATING TANGENTIAL FLOWS

摘要

The invention relates to a combustion chamber (100), in particular of a turboshaft engine, having an inner annular wall (102), an outer annular wall (104), and an annular chamber bottom (106) extending around an axis, the chamber bottom being provided with at least one opening (110) intended for receiving a fuel injector, said opening being substantially centred on a circular line (113) defining a first portion of the chamber bottom (106a) extending radially between the circular line and the inner annular wall, and a second portion of the chamber bottom (106b) extending radially between the circular line and the outer annular wall. The chamber bottom comprises first and second channels (114, 116) at an angle relative to a vector that is normal to the chamber bottom while extending tangentially, the first channels being arranged such as to allow air to flow in a first rotating direction (SG1), while the second channels are arranged such as to allow air to flow in a second rotating direction (SG2) opposite to the first rotating direction.