Outlet guide vane
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsStephan Klumpp, Britta Puyn
Life of this patent
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Abstract
An outlet guide vane for an axial compressor extending along a rotor axis, includes an airfoil extending in a span direction from a radially inner end at 0% height to a radially outer end at 0% height. The airfoil has a suction side and an opposite pressure side, both sides extending in a chord direction from a leading edge to a trailing edge, wherein for each profile of the airfoil a stagger angle between the chord and the rotor axis is defined. A more favorable air flow profile behind the outlet guide vane is achieved by a new shape of the outlet guide vane, wherein a stagger angle distribution in the span direction has a curved course having a minimum located between 40% and 60% in the span direction, a first maximum at 0% and a second maximum at 100% in the span direction.
Claims7
An outlet guide vane for an axial compressor extending along a rotor axis, comprising:
- an airfoil extending in a span direction from a radially inner end at 0% height to a radially outer end at 100% height, the airfoil comprising a suction side and an opposite pressure side, the suction side and the opposite pressure side extending in a chord direction from a leading edge to a trailing edge,
- wherein for each profile of the airfoil a stagger angle between the chord and the rotor axis is defined,
- wherein a distribution of the stagger angles in the span direction comprises a curved course comprising a minimum located between 40% and 60% in the span direction, a first maximum at 0% height and a second maximum at 100% height in the span direction,
- wherein the stagger angle at the minimum is between 1° and 7°.
Dependencies are inferred from the claim text.