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US 2025/0084867 A1Published application
Fan having a step diffuser
AssigneeZiehl-Abegg SE
InventorsFrieder LOERCHER, Andreas GROSS
Life of this patent
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Abstract
A fan, in particular an axial or diagonal fan, comprising a housing and an impeller arranged therein and driven by an electric motor and having vanes extending between a hub ring and a cover ring, wherein a step diffuser is formed in the form of an abrupt expansion of the flow cross-section in the direction of flow downstream of the impeller and after exiting the region of the cover ring.
Claims16
A fan, comprising:
- a housing;
- an impeller arranged in the housing and rotationally driven by an electric motor, with blades extending between a hub ring and a cover ring;
- and
- a step diffuser in the form of an abrupt expansion in a flow cross section formed downstream of the impeller and downstream of an outlet from a region of the cover ring in the flow direction.
1 more element
Dependencies are inferred from the claim text.