US 11,655,739 B2
Device for separating particles from a gas flow, particle separator and crankcase ventilation system
Sebastian Fenske, Gelnhausen (DE); Marcus Rüttger, Steinau an der Straße (DE); and Martin Klingelhöfer, Hanau (DE)
Assigned to WOCO Industrietechnik GmbH, Bad Soden-Salmuenster (DE)
Filed by WOCO Industrietechnik GmbH, Bad Soden-Salmünster (DE)
Filed on Oct. 4, 2019, as Appl. No. 16/593,433.
Claims priority of application No. 102018124647.1 (DE), filed on Oct. 5, 2018.
Prior Publication US 2020/0109650 A1, Apr. 9, 2020
Int. Cl. F01M 13/04 (2006.01); F16K 1/52 (2006.01)
CPC F01M 13/04 (2013.01) [F16K 1/523 (2013.01); F01M 2013/0438 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A device for separating particles from a gas flow with a blow-by gas of a crankcase ventilation in an internal combustion engine, the device comprising:
a valve seat that defines a flow passage opening;
a movable valve element that is displaceable between a closed position, in which the valve element is in abutting contact with the valve seat and the abutting contact defines an axial abutting point, and at least one open position, in which the valve element is moved from the axial abutting point in an axial actuating direction (A); and
at least one leakage element configured to allow a fluid passage in the closed position;
wherein the valve element has upstream of the gas flow a rotationally symmetrical bowl, which axially protrudes past the valve seat opposite to the axial actuating direction (A) by at least 10% of the longitudinal extent of the valve element.