US 11,697,089 B2
Particulate filtration device, fuel vapor recovery system, vehicle and method for a particulate filtration
Matthew Peterson, Grand Rapids, MI (US); and David Savage, Grand Rapids, MI (US)
Assigned to ETO MAGNETIC GmbH, Stockach (DE)
Filed by ETO MAGNETIC GmbH, Stockach (DE)
Filed on Apr. 28, 2021, as Appl. No. 17/243,123.
Prior Publication US 2022/0347620 A1, Nov. 3, 2022
Int. Cl. B01D 45/08 (2006.01); B01D 50/20 (2022.01); B01D 46/10 (2006.01); B01D 46/24 (2006.01); B60K 15/035 (2006.01)
CPC B01D 50/20 (2022.01) [B01D 45/08 (2013.01); B01D 46/10 (2013.01); B01D 46/2403 (2013.01); B01D 2279/00 (2013.01); B60K 15/03504 (2013.01); B60K 2015/03514 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A vehicle having a fuel vapor recovery system, the fuel vapor recovery system having a particulate filtration device, the particulate filtration device comprising:
an inlet for an inflow of a gas stream which is particle-laden,
an outlet for an outflow of the gas stream having a reduced particulate load,
a main filter section, which is arranged within a flow path of the gas stream between the inlet and the outlet and which comprises a filtration medium, and
a prefilter chamber, which is arranged upstream of the main filter section and which comprises an inertial filter element, having several perforations,
wherein each of the perforations are arranged within the flow path of the gas stream in such a way that when the flow path of the gas stream is passing through the perforations, an inertial separation of particulates from each flow path of the gas stream is achieved,
wherein each of the perforations are at least sectionally bordered by a deflection element,
wherein the deflection element protrudes from the inertial filter element, and
wherein the deflection element protrudes from a side of the inertial filter element that faces away from an outflow direction of the prefilter chamber.