US 12,428,967 B2Granted

Guide vane

AssigneeANDRITZ HYDRO GmbH

InventorsMarkus Oswald, Rudolf Peyreder, Simon Weissenberger

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Abstract

Guide vane for a guide wheel of a pump or turbine having a guide vane body with two end faces, a guide vane leading edge, a guide vane trailing edge, and first and second flow-guiding side faces connecting the vane leading and trailing edges and forming different flow profiles along an axial extension. Each flow profile has a chord, a mean camber line, and a mean camber curve end angle between the mean camber line and the chord at the vane trailing edge. The guide vane is mounted to rotate about an axis of rotation defined by two pivot pins. Along the axial extension, the guide vane has at least one flow profile with a positive mean camber curve end angle and at least one flow profile with a negative mean camber curve end angle. The guide vane leading edge is tilted relative to the axis of rotation.

Claims23

Dependent claims

A guide vane for a guide wheel of a pump or turbine, comprising:

a guide vane body having two end faces, a guide vane leading edge, a guide vane trailing edge, and a first flow-guiding side face and a second flow-guiding side face, which connect the guide vane leading edge and the guide vane trailing edge and form different flow profiles along an axial extension;
and
each of the flow profiles has a chord, a mean camber line, and a mean camber curve end angle at which the mean camber line is positioned to the chord at the guide vane trailing edge,
wherein the guide vane is mountable for rotation about an axis of rotation,
wherein, along the axial extension, the guide vane has at least one flow profile with a positive mean camber curve end angle and at least one flow profile with a negative mean camber curve end angle, and
wherein the guide vane leading edge is tilted relative to the axis of rotation.

3 more elements

Dependencies are inferred from the claim text.