The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 11, 2025

Filed:

Aug. 07, 2024
Applicant:

Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Wuerzburg, Wuerzburg, DE;

Inventors:

Christian Froh, Cuxhaven, DE;

Bernd Maurer, Bad Zwischenahn, DE;

Thomas Dreesen, Oldenburg, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/52 (2006.01); F01P 5/04 (2006.01); F01P 5/06 (2006.01); F04D 19/00 (2006.01); F04D 25/06 (2006.01); F04D 29/16 (2006.01); F04D 29/32 (2006.01); F04D 29/54 (2006.01);
U.S. Cl.
CPC ...
F04D 29/522 (2013.01); F01P 5/06 (2013.01); F04D 19/002 (2013.01); F04D 25/06 (2013.01); F04D 29/325 (2013.01); F04D 29/326 (2013.01); F04D 29/526 (2013.01); F04D 29/545 (2013.01); F04D 29/547 (2013.01); F01P 2005/046 (2013.01); F04D 29/164 (2013.01);
Abstract

A cooling fan has a fan shroud with a fan wheel recess surrounded by a shroud ring and a fan wheel rotatably mounted in the fan wheel recess for conveying the air flow along a conveying direction from a shroud upper side to a shroud underside. The fan wheel has a central hub cup with radially orientated blades and an outer ring connecting the blades at the blade tip ends. A circumferential ring gap is formed between the outer ring and the shroud ring. A rib structure in the ring gap reduces swirl in a gap flow orientated against the conveying direction. A shroud ring section of the shroud ring extends axially beyond the outer ring on the shroud underside. The shroud ring section is orientated parallel or at an angle of inclination and radially inwards relative to the conveying direction.


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