Gebr. Becker Gmbh

Markus Loebel

Rudolf Bahnen

Artjom Kraft

Islam Akyildiz

Uwe Drewes

Frank Rischewski

Klaus Rofall

An oil-lubricated slide vane rotary vacuum pump with a slide vane unit, and with an oil separating and reconditioning device, wherein oil and gas are separated by separating devices, possibly complemented by oil coolers and/or oil pumps. One or more monitoring and/or servicing devices are provided, and the oil separating and reconditioning device is installed in an oil separating and reconditioning housing. Side walls extend transversely to a plane of rotation of a slide vane rotor, and define a longitudinal extent of the oil separating and reconditioning housing. The one or more monitoring and/or servicing devices are arranged only in one or more cover parts which are attached to one or both end walls of the oil separating and reconditioning housing. The oil separating and reconditioning housing is formed with the side walls, the bottom wall and the top wall without being configured for a monitoring and/or servicing device.

Oil-lubricated slide vane rotary vacuum pump with oil separating and reconditioning device

The invention relates to a vacuum pump, in particular a screw pump, having preferably two displacement body shafts (), coupled via a gearing, which drive displacement bodies (), and having an inner recess (), extending in the direction of a geometric axis (A) of the displacement body shaft (), in which a tubular body () extends for conducting cooling fluid while leaving a free space between an inner surface of the recess () and an outer surface of the body (). To provide a vacuum pump which has a configuration having a simple construction and which is effective with regard to cooling power, it is proposed that the body () is in addition secured in a separate cover part () mounted on the suction-side end of the displacement body (), and that the free space is formed, at least in part, directly between the body () and the inner surface of the displacement body () and extends continuously from the cover part () to a securing region of the body () in the displacement body shaft (), in a region of the displacement body shaft () associated with the motor/gearing housing () of the displacement body shaft ().

Vacuum pump

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Bochum, Germany

Markus Loebel