US 12,390,757 B2
Air filtering apparatus
Andreas Lennhager, Kinna (SE); Mikael Savinger, Molnlycke (SE); and Magnus Sturesson, Marback (SE)
Assigned to Camfil AB, Stockholm (SE)
Appl. No. 17/924,957
Filed by CAMFIL POWER SYSTEMS AB, Borås (SE)
PCT Filed May 3, 2021, PCT No. PCT/SE2021/050411
§ 371(c)(1), (2) Date Nov. 11, 2022,
PCT Pub. No. WO2021/230790, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 2050557-4 (SE), filed on May 13, 2020.
Prior Publication US 2023/0182063 A1, Jun. 15, 2023
Int. Cl. B01D 46/88 (2022.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/58 (2022.01); B01D 46/62 (2022.01); F02M 35/024 (2006.01)
CPC B01D 46/88 (2022.01) [B01D 46/0002 (2013.01); B01D 46/2403 (2013.01); B01D 46/58 (2022.01); B01D 46/62 (2022.01); F02M 35/024 (2013.01); B01D 2279/60 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An air filtering apparatus configured to provide intake air to an engine, said apparatus comprising:
a filter chamber comprising an air inlet opening, and an air outlet opening;
a weather protection hood arranged on an air inlet side of the filter chamber, said weather protection hood having an air intake opening facing downward and an outlet opening being connected to the air inlet opening of the filter chamber;
a pulse filter arrangement comprising one or more filters;
a static filter arrangement located at the air outlet opening;
wherein the pulse filter arrangement is arranged inside the weather protection hood and in that a maintenance space is provided in the filter chamber on a downstream side of the pulse filter arrangement, through which the filters of the pulse filter arrangement can be replaced.