| 摘要 |
A fuel arrangement (10) for a combustion apparatus, comprises at least one passage (23) for the flow of fluid, said passage being of substantially annular cross section, being defined by a radially inner wall (15) and a radially outer wall (16) and having an inlet region and an outlet region, wherein the inlet region incorporates a plurality of vannes (25) adapted to modify a flow pattern of a fluid entering said inlet region, such that fluid passing from the inlet region to the outlet region has a composite flow pattern having both an axial component and a rotational component about the longitudinal axis of the passage.
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