ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,967, issued on Sept. 30, was assigned to ANDRITZ HYDRO GMBH (Vienna).
"Guide vane" was invented by Markus Oswald (Marchtrenk, Austria), Rudolf Peyreder (Linz, Austria) and Simon Weissenberger (Ottensheim, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "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...