US 12,428,967 B2
Guide vane
Markus Oswald, Marchtrenk (AT); Rudolf Peyreder, Linz (AT); and Simon Weissenberger, Ottensheim (AT)
Assigned to ANDRITZ HYDRO GMBH, Vienna (AT)
Appl. No. 18/838,094
Filed by ANDRITZ HYDRO GmbH, Vienna (AT)
PCT Filed Feb. 9, 2023, PCT No. PCT/AT2023/060037
§ 371(c)(1), (2) Date Aug. 13, 2024,
PCT Pub. No. WO2023/212757, PCT Pub. Date Nov. 9, 2023.
Claims priority of application No. A 50303/2022 (AT), filed on May 3, 2022.
Prior Publication US 2025/0146420 A1, May 8, 2025
Int. Cl. F01D 9/04 (2006.01)
CPC F01D 9/041 (2013.01) [F01D 9/042 (2013.01); F05D 2230/00 (2013.01); F05D 2240/12 (2013.01); F05D 2240/121 (2013.01); F05D 2240/122 (2013.01)] 23 Claims
OG exemplary drawing
 
1. 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.