US 12,129,867 B2
Fan for a heat exchanger of a vehicle
Anand Sivaram Sivaramakrishnan, Griesheim (DE); Ahmet Erhan Dinc, Frankfurt a.M. (DE); and Mihai Bleiziffer, Worms (DE)
Assigned to HANON SYSTEMS EFP DEUTSCHLAND GMBH, Bad Homburg V.D. Höhe (DE)
Filed by HANON SYSTEMS EFP DEUTSCHLAND GMBH, Bad Homburg v.d. Höhe (DE)
Filed on Sep. 7, 2023, as Appl. No. 18/463,083.
Claims priority of application No. 10 2022 211 407.8 (DE), filed on Oct. 27, 2022; and application No. 10 2023 204 020.4 (DE), filed on May 2, 2023.
Prior Publication US 2024/0141921 A1, May 2, 2024
Int. Cl. F04D 29/70 (2006.01); F04D 19/00 (2006.01); F04D 29/52 (2006.01)
CPC F04D 29/522 (2013.01) [F04D 19/002 (2013.01); F04D 29/703 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fan for a heat exchanger of a vehicle, the fan comprising a ventilator and a protection grid upstream of the ventilator, wherein the protection grid further comprises a plurality of radial ribs and a plurality of concentric ribs, wherein blades of the ventilator are bent to curve in only a first circumferential direction arranged perpendicular to a radial direction of the ventilator as the blades extend radially outwardly away from an axis of rotation of the ventilator, and wherein at least one of the radial ribs extends so as to be curved or crescent-shaped with the at least one of the radial ribs curving along its major axis in a second circumferential direction arranged perpendicular to the radial direction of the ventilator and opposite the first circumferential direction as the at least one of the radial ribs extends radially outwardly away from the axis of rotation of the ventilator.