Polytec Plastics Germany Gmbh & Co. Kg

Christian Berding

Hans Janssen

Jorge Soares

Christoph Leson

Tobias Burkert

Hans Janßen

Michael Buck

Jens Huckle

Walter Van Gilst

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

Switched suction jet pump

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

Multi-stage jet suction pump

Growing community of inventors

Lohne, Germany

Christian Berding