Patent · US Active

Diagonal fan having an optimized diagonal impeller

US11542955B2 · kind B2 · utility

1Cited by

1References

19Claims

0Family size

Assignee

ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

Oliver Haaf · Kupferzell, DE
Daniel Gebert · Winnweiler, DE
Johannes Dörr · Mulfingen, DE

Key dates

Filing date	Nov 4, 2019
Grant date	Jan 3, 2023
Priority date	—
Expiry date	Nov 4, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/183
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A diagonal fan having an electric motor and a diagonal impeller which can be driven about an axis of rotation (RA) by means of the electric motor. The diagonal impeller determines an air inlet and an air outlet and has a hub and impeller vanes which are distributed in the circumferential direction, extend radially outwards from the hub and are surrounded radially externally by a slinger ring. A flow angle αD formed by the slinger ring relative to the axis of rotation (RA) increases from the air inlet to the air outlet, and a flow angle αN formed by the hub relative to the axis of rotation (RA) decreases from the air inlet to the air outlet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.