US 12,343,667 B2
Deaerating device
Frank Bodendorf, Kaufering (DE); and Moritz Hoescheler, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/801,308
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Mar. 26, 2021, PCT No. PCT/EP2021/057893
§ 371(c)(1), (2) Date Aug. 22, 2022,
PCT Pub. No. WO2021/213778, PCT Pub. Date Dec. 8, 2021.
Claims priority of application No. 10 2020 110 775.7 (DE), filed on Apr. 21, 2020.
Prior Publication US 2023/0096702 A1, Mar. 30, 2023
Int. Cl. B01D 19/00 (2006.01); B01D 45/06 (2006.01); B01D 45/08 (2006.01)
CPC B01D 45/08 (2013.01) [B01D 19/0031 (2013.01); B01D 45/06 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A deaerating device for a drive component in a motor vehicle, comprising:
an access line;
a membrane deaerator having a deaerating membrane; and
a discharge air side, wherein
the deaerating device is configured to connect in a fluid-conveying manner an internal space of the drive component to an environment which surrounds the drive component,
the deaerating membrane is arranged downstream of the access line and upstream of the discharge air side in a planned flow direction from the drive component into the environment,
an aerosol trap in the access line, the aerosol trap having a labyrinth for depositing liquid on at least one wall of the labyrinth, wherein
the aerosol trap is in the form of a separate component with respect to the access line and with respect to the membrane deaerator,
the aerosol trap has an access region and a labyrinth region downstream of the access region in the planned flow direction,
the aerosol trap has an external wall surrounding a throughflow region connecting the access region to the labyrinth region in a fluid-conveying manner,
at least two impact walls are arranged in the labyrinth region, and
a labyrinth opening in a lateral side of the external wall is downstream of at least one of the impact walls in the planned flow direction.