Patent · US Active

Fan and intake grid for a fan

US11703065B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

ZIEHL-ABEGG SE · DE

Inventors

Frieder LOERCHER · Braunsbach, DE
Alexander Herold · Erlangen, DE

Key dates

Filing date	Feb 15, 2019
Grant date	Jul 18, 2023
Priority date	—
Expiry date	Feb 15, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2250/51
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Disclosed fans include an impeller and a guide device. The impeller is configured to generate an air flow path having an upstream direction and a downstream direction, and the guide device is positioned in the flow path located on an upstream side of the impeller. The guide device is configured as an intake grid having flat webs having branches and node points, and the webs form a plurality of flow channels configured as grid cells. The webs extend either between two branches or between one branch and a border area and each branch may include three webs that meet. In one configuration, flow channels include channels having a honeycomb cross section. In other example, flow channels may have a rectangular, pentagonal, and/or hexagonal shape. The fan further includes an inlet nozzle having an inlet area, and the guide device is located upstream from the inlet area of the inlet nozzle.

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