Patent · US Active

Fan system and arrangement of one or more such fan systems in a flow duct

US11371730B2 · kind B2 · utility

1Cited by

6References

25Claims

0Family size

Assignee

ZIEHL-ABEGG SE · DE

Inventors

Frieder LOERCHER · Braunsbach, DE
Matthias GOELLER · Weinbach, DE
Andre Mueller · Hilzingen, DE

Key dates

Filing date	Nov 30, 2017
Grant date	Jun 28, 2022
Priority date	—
Expiry date	Jul 11, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF24F2013/242
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A disclosed fan system includes a housing having side walls, an inflow side, and an outflow side; a fan secured in the housing by a mounting; and a backflow blocker mounted to the side walls within the housing on the outflow side of the housing partially blocking a cross-sectional area of the outflow side. The backflow blocker is positioned approximately centrally in a flow path of the housing and is configured to block part of an airflow cross section such that, between side walls of the housing and side walls of the backflow blocker, an annular duct is formed as an air passage. Further, the backflow blocker has a thickness that is greater than 5% of a width of the housing, and is less than 20% of an axial design height of the fan system.

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