US 12,146,678 B2
Grille for ventilation apparatus
Rafael Schabbach, Canoas (BR); Carlos Afonso Tesche, Canoas (BR); Luciano Da Luz Moraes, Canoas (BR); Peter Torres Romancini, Canoas (BR); José Ricardo Herrmann Baumbach, Canoas (BR); Felipe Osmar Berwanger Brochier, Canoas (BR); and Jonathan Gustavo Da Silva, Canoas (BR)
Assigned to SPRINGER CARRIER LTDA., (BR); CLIMAZON INDUSTRIAL LTDA., (BR); and MIDEA DO BRASIL—AR CONDICIONADO LTDA., (BR)
Appl. No. 17/418,659
Filed by SPRINGER CARRIER LTDA., Canoas (BR); CLIMAZON INDUSTRIAL LTDA., Manaus (BR); and MIDEA DO BRASIL—AR CONDICIONADO LTDA., Joinville (BR)
PCT Filed Dec. 28, 2018, PCT No. PCT/BR2018/050487
§ 371(c)(1), (2) Date Jun. 25, 2021,
PCT Pub. No. WO2020/132722, PCT Pub. Date Jul. 2, 2020.
Prior Publication US 2022/0057104 A1, Feb. 24, 2022
Int. Cl. F24F 13/08 (2006.01); F04D 29/70 (2006.01)
CPC F24F 13/082 (2013.01) [F04D 29/703 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A grille for ventilation apparatus, arranged downstream of insufflation elements of ventilation devices, comprising a grid portion arranged upstream of a stator portion, wherein the grid portion includes fins which form protection rings, and wherein an aspect ratio (Zp) between a depth of an entry edge (Lpe) and of an exit edge (Lps) of the protection rings is between 0.1 and 2.0.