Improvements in or relating to burners for a gas turbine engine

摘要

A burner for a gas-turbine engine including a swirler and a combustion chamber is provided. The swirler includes a plurality of vanes arranged in a circle, each adjacent pair of vanes defining a flow slot for the flow of air and fuel into the swirler, the air and fuel is mixed and supplied in swirling form to the combustion chamber. The swirler can also include a partitioning device which divides the flow of air along each flow slot into two air flows. One side of the partitioning device has a fuel-supply port for supplying fuel to one of the two air flows. The relevant air flow causes fuel supplied to the fuel-supply port to form a film of fuel over the relevant side of the partitioning device. The film leaves the relevant side of the partitioning device in a region of high shear between adjacent flows in the burner.