Patent · US Active

Diagonal fan with outlet guide vane device

US12006947B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

Thomas Heli · Langenburg, DE
Joerg Guenther · Moers, DE
Peter Riegler · Boxberg, DE
Daniel Gebert · Winnweiler, DE

Key dates

Filing date	Oct 9, 2019
Grant date	Jun 11, 2024
Priority date	—
Expiry date	Oct 9, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2250/52
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A diagonal fan has an electric motor, housing, and diagonal impeller, which is accommodated within the housing, can be driven via the electric motor, and generates a diagonal flow during operation that is deflected in an axial flow direction by an inner wall of the housing. Outlet guide vane device with a plurality of guide vanes distributed in the circumferential direction is arranged adjacently to the diagonal impeller when viewed in the axial flow direction, and homogenizes airflow generated by the diagonal impeller. Guide vanes have a radial extension from a hub region of the outlet guide vane device to the housing. An imaginary extension in the outflow angle of the diagonal impeller strikes the inner wall of the housing at an axial distance K from the diagonal impeller. Outlet guide vane device is arranged at axial distance H to diagonal impeller where 0.75≤K/H≤1.25.

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