Axial fan with increased rotor diameter

US11365741B2 · kind B2 · utility

Assignee

• ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

• Daniel Gebert · Winnweiler, DE
• Thorsten Pissarczyk · Gemmingen, DE
• Angelika Klostermann · Gaisbach, DE
• Katrin Bohl · Künzelsau, DE
• Markus Engert · Lauda, DE
• Oliver Haaf · Kupferzell, DE
• Marc Schneider · Bad Ems, DE

Key dates

• Filing date: Aug 13, 2015
• Grant date: Jun 21, 2022
• Expiry date: May 9, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04D29/667
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An axial fan for use with a wall ring plate includes a housing having an inlet region and a rotor. The rotor has an increased rotor diameter compared to a standardised rotor diameter. On the inlet side, the inlet region has a tapered section that narrows in an arched manner in a cross-sectional view from an inlet diameter to a wall ring diameter. The axial width and radial length of the tapered section are formed in a predetermined ratio.