Abstract: An axial ventilator (1) has a housing (2) and a fan wheel (3) arranged in the housing (2) to generate an axial air flow through the housing (2). The fan wheel (3) has multiple fan wheel blades (4) that extend radially outward from a hub (5) up to a respective blade tip (8). The blades extend spaced apart from an inner wall of the housing (2) via a head gap (12). The fan wheel blades (4) have boreholes (7) along the respective blade tip (8).
February 24, 2020
Date of Patent:
July 19, 2022
ebm-papst St. Georgen GmbH & Co. KG
Roland Keber, Tobias Sieger, Wolfgang Laufer, Jürgen Herr, Arnold Schulde, Georg Eimer, Martin Müller, Dominik Haas, Simon Hoppe, Julien Grilliat, Johannes Dannecker, Clemens Günter