A vane structure and a method of manufacturing a vane structure

摘要

A fuel injector (56) comprises a swirler (64). The swirler (64) comprises a plurality of vanes (70), a first member (72) and a second member (74). The second member (74) is arranged coaxially around the first member (72) and the vanes (70) extend radially between the first and second members (72, 74). The vanes (70) have leading edges (76) and the second member (74) has an upstream end (78). The leading edges (76) of the vanes (70) extend with radial and axial components from the first member (72) to the upstream end (78) of the second member (74) and the radially outer ends (80) of the leading edges (76) of the vanes (70) form arches (82) with the upstream end (78) of the second member (74). The arrangement of the swirler (64) enables the fuel injector (56) to be built by direct laser deposition.