Arrangement of an impeller on a rotating part and method for producing the arrangement

US10619641B2 · kind B2 · utility

Assignee

• ZIEHL-ABEGG SE · DE

Inventors

• Stefan Roessler · Schwäbisch Hall, DE
• Michael Ruedenauer · Forchtenberg, DE

Key dates

• Filing date: Dec 1, 2015
• Grant date: Apr 14, 2020
• Expiry date: Jun 1, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04D29/646
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An arrangement of an impeller (3) on a rotating part, preferably on an electric motor (1), in particular on an external rotor motor, wherein the torque of the motor (1) is transmitted to the impeller (3) by a rotationally secure connection between the rotor (2) of the motor (1) and the impeller (3) or its impeller hub (4), and wherein the connection is created by means of a press fit between the impeller hub (4) and the rotor (2), with integration of a sleeve (6) which is preferably securely assigned to the impeller hub (4) and which takes up mechanical stresses, is characterized in that the sleeve (6) is polygonal and is pressed onto the surface of the rotor (2), with at least minor deformation, forming axial contact surfaces. Also specified is a method for producing such an arrangement.