Ksb Aktiengesellschaft

Stephan Bross

Wolfgang Kochanowski

Christoph Jaeger

Peter Hergt

Bernhard Brecht

Uwe Bruhns

Wiltrud Knoebl

Peter Amann

Sven Baumgarten

Stefan Flak

Mogens Ellegaard

Isabel Goltz

Ruediger Koepp

Rüdiger Köpp

A pressure exchanger transferring pressure energy from a liquid in a first liquid system to a liquid in a second liquid system, having a housing with inlet and outlet connection openings for each liquid and a rotor arranged in the housing for rotation about a longitudinal axis. Through rotor channels are arranged around the rotor longitudinal axis with openings on each axial end face of the rotor. The rotor channels are arranged for connection through opposing flow openings facing the housing to the connection openings of the housing. During rotor rotation high pressure liquid and low pressure liquid are alternately introduced into the respective systems. Liquid flowing to the rotor through the openings generates a circumferential force (c) for driving the rotor, and starting at or following the openings a flow guiding configuration formed as a rotor channel flow diverting contour is arranged in the rotor channels.

Channel form for a rotating pressure exchanger

A centrifugal pump with a housing having one or more impellers having an axial or semiaxial, open or closed design disposed therein and an intake channel mounted upstream of the first impeller. A plurality of grooves that are distributed around the circumference and extend in the direction of flow are arranged within the wall area of the intake channel. In the housing wall of the intake channel there is a closed annular wall area constructed between a point of entry of the first impeller and the proximate ends of the grooves, whereby the grooves are operatively connected exclusively with the space in the intake channel.

Centrifugal pump intake channel

An element is to be mounted on a shaft of a non-positive displacement machine and forms a gap for limited passage of a flowing medium. A bush-like part for mounting on a shaft of the machine has an outer periphery provided with a recess for accommodating a ring. During operation of the machine, the ring, which is partially surrounded on its faces by circular ring-shaped walls of the recess, forms an axial gap with the circular, ring-shaped walls of the recess and a radial gap with the bottom of the recess. The ring is held by frictional contact with a rigid wall which surrounds it. To reduce wear on rings made of soft, flowable material, a second recess is formed in the rigid wall and surrounds the faces of the ring that project from the walls of the bush-like part. One of the lateral bounds of the second recess is formed by a tubular part detachably joined to the rigid wall.

Gap-forming element for mounting on a shaft

A valve for switching over liquid paths, particularly for pressure exchanger installations with tubular pressure exchanger chambers () through which an alternating flow occurs, in which a rotatable control element () having a plurality of flow paths is mounted in a housing (), which in turn comprises a plurality of connection opening () connected to a first pipe system and to an end of at least one pressure exchanger. Another end of the pressure exchanger is connected to a second pipe system through a valve. A motorized drive shaft () rotates the control element so as to alternately connect the control element flow paths to openings inside housing (). Oncoming flow to the control element may come from an axial direction or from a radial direction, and outgoing flow from the control element occurs in the axial direction.

Valve unit for pressure exchanger installations

A housing for a double spiral circulation pump includes a spiral housing and a multipartite rib. The spiral housing defines a flow channel. The multipartite rib is disposed in the housing to divide the flow channel. The multipartite rib includes at least two rib parts spaced from each other to define a gap therebetween.

Spiral housing pump

Growing community of inventors

Erpolzheim, Germany

Stephan Bross