Abstract: The invention relates to a single-stage or multistage suction jet pump comprising a propelling nozzle (5), one or more suction nozzles (2), a diffuser (7), and a volume flow limiting valve in or directly in front of the propelling nozzle. The volume flow limiting valve has a valve element (4) in the overpressure region (1) of the suction jet pump, said valve element having an opening (8) with a cross-sectional area which is smaller than the cross-sectional area of the propelling nozzle (5). The valve element spans at least one additional gap opening (9) which first releases the cross-section of the gap opening (9) when the pressure difference between the overpressure region (1) and the suction region (2) increases and which switches in the event of a defined large pressure drop and the valve element (4) reduces or closes the cross-section of the gap opening (9) such that the volume flow flowing over the opening (8) is limited to a defined level even in the event of a further increasing pressure difference.

Abstract: An oil separation device includes an oil separator in a housing between a gas inlet and an outlet. An opening is formed at the longitudinal end of a gas-conducting channel connected to the gas inlet the end facing away from the gas inlet, and a throttle aperture movably mounted in the longitudinal direction of the gas conducting channel. The gas conducting channel and an outlet channel form an annular gap through which crankcase ventilation gases flow via a nozzle gap, and the housing has an additional opening to which a reference pressure can be applied on the throttle aperture side facing away from the gas conducting channel. The throttle aperture extends radially beyond the annular gap and has a seal region molded onto the edge that is sealingly arranged in a recess formed in the housing such that the throttle aperture fluidically separates the additional opening from the gas inlet.

Abstract: The invention relates to a volume flow control valve with a control function for ventilating the crankcase of an internal combustion engine in a housing between a crank chamber of a crankcase and an intake tract with at least two openings between the crank chamber and the intake tract.

Abstract: The invention relates to a multi-stage jet suction pump for aspirating blow-by gases from internal combustion engines.

Abstract: The invention relates to a cascade impactor having a first stage comprising a plate (2) with fixed bores as gas inlet and at least a first impact wall (4) with a variable distance from the plate (2) as well as at least a second stage having a fixed second impact wall (5), which is arranged in the flow direction downstream of the first impact wall (4).

Abstract: The invention relates to a cylinder head cover for a motor vehicle, said cylinder head cover being made of plastic material and being provided with an integrated camshaft timing mechanism.

Abstract: The invention relates to a multi-stage jet suction pump for aspirating blow-by gases from internal combustion engines.

Abstract: The invention relates to a disk separator for cleaning gases, in particular blow-by gases of the crankcase ventilation of motor vehicles, comprising an upper housing part and a lower housing part, the upper housing part and the lower housing part comprising a plastic material.

Abstract: The invention relates to a cascade impactor having a first stage comprising a plate (2) with fixed bores as gas inlet and at least a first impact wall (4) with a variable distance from the plate (2) as well as at least a second stage having a fixed second impact wall (5), which is arranged in the flow direction downstream of the first impact wall (4).

Abstract: A pre-assembled camshaft module for attachment to a cylinder head of an internal combustion engine includes a cylinder head cover, at least one camshaft, and bearing elements to which the camshaft is rotatably mounted. The bearing elements are formed as bearing brackets, which are connected by attachment members to the cylinder head cover at individual attachment points, in order to produce the pre-assembled camshaft module. The camshaft module is connectable to the cylinder head at the attachment points by the attachment members.