Netzsch Pumpen & Systeme Gmbh

Netzsch-mohnopumpen Gmbh

Mikael Tekneyan

Hisham Kamal

Johann Kreidl

Stefan Weigl

Reinhard Denk

Robert Kurz

Franz Kneidl

Josef Strassl

Erwin Weber

Bernhard Murrenhoff

Thomas Boehme

Roger Willis

Marcel Verhoeven

Stefan Kern

Matthias Gradl

Gunther Herr

Helmuth Weber

Markus Rosam

Philipp Nübl

Magdalena Brüning

Michael Suthmann

Udo Enderle

Stefan Voit

Michael Robby

Christian Bindig

Thomas Schmitt

Mathias Gradl

Gunter Herr

Philipp Nuebl

Christian Kneidl

Hans Juergen Linde

Hans Jürgen Linde

Magdalena Bruening

Thomas BÖHME

A pump housing for an eccentric screw pump, with a longitudinal axis and a hollow space constituted running axially between a drive-side opening and a pump-side opening, wherein the pump-side opening is enclosed by a main housing body and a lid fastened removably thereto, wherein the main housing body includes a ring segment-shaped axial guiding surface lying opposite the lid.

Pump housing for an eccentric screw pump and an eccentric screw pump equipped therewith

A coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft, with a drive shaft receiving portion and a rotor connecting portion arranged at an opposite end of the coupling element from the drive shaft receiving portion, the rotor connecting portion is constituted as a hollow cylinder for receiving a rotor end of the screw pump rotor, wherein the hollow cylinder has at least two inner circumferential surfaces which are complementary to the rotor and have a radius which is fixed with respect to the cross-sectional center of the hollow cylinder.

Coupling element for an eccentric screw rotor

A stator-rotor system of an eccentric screw pump including a rotor with a rotor screw and a stator with an internal thread. The stator includes a support element and an elastomer part. The support element surrounds the elastomer part in sections around the whole circumference. The stator-rotor system includes a mechanism for adjusting the stator, having two adjustment elements arranged on the stator-rotor system, which are distance-variable relative to one another. In a first working position the two adjustment elements have a first distance from one another and in a second working position, a second distance. The cross-section and the length of the elastomer part of the stator in the second working position are changed compared to the cross-section and the length of the elastomer part in the first working position.

Stator-rotor system and method for adjusting a stator in a stator-rotor system

A shaft slide ring seal arrangement including a shaft, which has a first and second end, and a slide ring seal, which includes a shaft slide ring connected non-rotatably to the shaft, the axial displaceability whereof is limited at least in the direction of the first end of the shaft by a limiting element, and a slide ring arrangement arranged at a radial distance from the shaft, which slide ring arrangement lies, at a side of the shaft slide ring pointing towards the second end of the shaft, axially adjacent thereto, as well as a retaining ring supported on the shaft, the axial displaceability whereof is limited at least in the direction of the second end of the shaft and which centers the slide ring arrangement, on its side facing away from the shaft slide ring, with respect to the shaft.

Shaft slide ring seal arrangement

A feeding device for an in-line screw machine with a shaft rotating in a feed container. A conveying screw is arranged in the direction toward the longitudinal axis of the rotating shaft. At least one disk wheel is allocated to each longitudinal side in the feed container. A separate drive is allocated to each disk wheel for purposes of rotational movement.

Feeding device having a double-disk feed having a separated drive and method for operating such a feeding device

A rotary piston pump for the delivery of liquids and for the delivery of liquids containing solids. The rotary piston pump includes a pump housing which is provided with an inlet and an outlet. The pump housing includes a lining. Disposed in the pump housing, or inside the lining, are at least two counter-rotating rotary pistons, which form pump spaces during their rotation. During the rotational movement, the rotary pistons are sealed against one another, against the pump housing and against the lining. Disposed in the pump housing and/or in the lining, in the spatial vicinity of the inlet and/or the outlet, are means with which the pulsation can be reduced or even completely prevented.

Rotary piston pump with optimised inlets and outlets

A rotary piston pump with at least two double- or multi-lobe rotary pistons rotating in opposite directions, the drive shafts whereof include seals, wherein the seals are constituted as slip ring seals or lip seals or stuffing-box seals, which in each case are disposed on the shaft shoulder belonging to the respective rotary piston, and one slip ring per seal is provided with a locking device, which includes a large number of fixing positions. The seals are pushed onto a tubular shoulder of the rotary piston, the rotary piston is introduced into the pump housing, the securing element is connected to the slip ring seal in a form-fit manner by rotation of the rotary piston and the shaft shoulder is then rigidly connected to the drive shaft.

Rotary piston pump with slip ring seals for improved fitting and synchronization of rotary pistons

A method and a device for fixing and synchronizing rotary pistons in a rotary piston pump involves introducing the rotary pistons into the pump space of the rotary piston pump. A shaft stub of each rotary piston is then pushed through a pump rear wall onto a driveshaft provided for the respective rotary piston. The rotary pistons are aligned and synchronized in the pump space via a template, the template being fixed detachably to a pump housing. The shaft stubs of the respective rotary piston are connected, after the synchronization, in each case via a clamping device in a friction-locked manner to the respective driveshaft, outside the pump space.

Method and device for fixing and synchronizing rotary pistons in a rotary piston pump

Combined displacement pump and displacement pump housing

A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are driven and synchronized via at least one elastic element.

Rotary piston pump and method for operating a rotary piston pump

The invention relates to a stator casing for eccentric worm pumps comprising an elastic lining, the cylindrical stator casing having a surface on the inner side, along the longitudinal axis whereof grooves are incorporated.

Stator casing for eccentric worm pumps

The invention relates to an eccentric screw pump and a method for its operation. Unlike the previously known prior art, where changes to the internal geometry of the pump stator caused by wear were always remedied with radially acting clamping measures, the invention is based on bringing this about by a change in the length of the lining.

Stator system

Growing community of inventors

Waldkraiburg, Germany

Mikael Tekneyan