Patents by Inventor Stephan Bross
Stephan Bross has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11619238Abstract: A sealing arrangement for a centrifugal pump is provided. The sealing arrangement permits a sealing gap between a rotating element such as a pump impeller and a non-rotating element such as a pump casing to be minimized, while protecting against element wear from gap reduction and element contact, particularly during transient operation such as pump start up. At least one of the rotating element and the non-rotating element is provided with a plurality of movably mounted bodies configured to rotate and maintain separate the rotating and non-rotating elements when the sealing gap is reduced. The elements and the bodies may be formed in an additive manufacturing process.Type: GrantFiled: April 25, 2017Date of Patent: April 4, 2023Assignee: KSB SE & Co. KGaAInventors: Alexander Boehm, Stephan Braun, Stephan Bross, Holger Rauner, Adrian Stein, Tim Richter
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Publication number: 20190136864Abstract: A sealing arrangement for a centrifugal pump is provided. The sealing arrangement permits a sealing gap between a rotating element such as a pump impeller and a non-rotating element such as a pump casing to be minimized, while protecting against element wear from gap reduction and element contact, particularly during transient operation such as pump start up. At least one of the rotating element and the non-rotating element is provided with a plurality of movably mounted bodies configured to rotate and maintain separate the rotating and non-rotating elements when the sealing gap is reduced. The elements and the bodies may be formed in an additive manufacturing process.Type: ApplicationFiled: April 25, 2017Publication date: May 9, 2019Inventors: Alexander BOEHM, Stephan BRAUN, Stephan BROSS, Holger RAUNER, Adrian STEIN, Tim RICHTER
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Patent number: 7815421Abstract: 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 (cu) 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.Type: GrantFiled: February 7, 2007Date of Patent: October 19, 2010Assignee: KSB AktiengesellschaftInventors: Stephan Bross, Wolfgang Kochanowski
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Patent number: 7798772Abstract: 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.Type: GrantFiled: June 17, 2005Date of Patent: September 21, 2010Assignee: KSB AktiengesellschaftInventors: Stephan Bross, Isabel Goltz, Peter Amann
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Patent number: 7748923Abstract: 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.Type: GrantFiled: April 15, 2005Date of Patent: July 6, 2010Assignee: KSB AktiengesellschaftInventors: Stephan Bross, Ruediger Koepp
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Patent number: 7600535Abstract: A valve for switching over liquid paths, particularly for pressure exchanger installations with tubular pressure exchanger chambers (3) through which an alternating flow occurs, in which a rotatable control element (10, 10.1) having a plurality of flow paths is mounted in a housing (11), which in turn comprises a plurality of connection opening (12, 16, 17, 46) 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 (50) rotates the control element so as to alternately connect the control element flow paths to openings inside housing (11). 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.Type: GrantFiled: September 12, 2005Date of Patent: October 13, 2009Assignee: KSB AktiengesellschaftInventors: Sven Baumgarten, Stephan Bross, Bernhard Brecht, Uwe Bruhns, Stefan Flak, Christoph Jaeger, Wolfgang Kochanowski, Wiltrud Knoebl, Mogens Ellegaard
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Patent number: 7465153Abstract: Disclosed is a diverter for directing particles that cause wear in a slurry pump away from the stationary face of a slurry pump. The diverter comprises a protrusion that directs particles back into the collector of the pump to reduce the number of particles that go through the impeller nose gap. The protrusion extends from the suction liner face to the front shroud whereby particles can be deflected away from the suction liner face.Type: GrantFiled: August 6, 2002Date of Patent: December 16, 2008Inventors: Graeme R. Addie, Thomas Mueller, Stephan Bross, John Maffett
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Publication number: 20070212231Abstract: A pressure exchanger for transferring pressure energy from a first liquid in a first liquid system to a second liquid in a second liquid system, having a housing with inlet and outlet connection openings for each liquid and a rotor (1) arranged in the housing for rotation about a longitudinal axis. A number of through rotor channels (2) are arranged around the rotor longitudinal axis with openings (4) on each axial end face of the rotor. The rotor channels (2) are arranged for connection through opposing flow openings formed in the housing to the connection openings of the housing such that during rotation of the rotor, high pressure liquid and low pressure liquid are alternately introduced into the respective systems.Type: ApplicationFiled: February 7, 2007Publication date: September 13, 2007Applicant: KSB AktiengesellschaftInventors: Stephan Bross, Wolfgang Kochanowski
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Publication number: 20070137170Abstract: A pressure exchanger for transferring pressure from a higher pressure liquid in a first liquid system to a lower pressure liquid in a second liquid system having a housing (8) with inlet and outlet connection openings (10-10.3) for each liquid and a rotor (1) arranged in the housing for rotation about a longitudinal axis. The rotor has a plurality of through channels (13) arranged around the longitudinal axis with openings (12) on axial end faces (2, 3) of the rotor. The rotor channels (13) are connected to the connection openings (10-10.3) through flow openings (11-11.3) in the housing such that during rotation of the rotor high pressure liquid and low pressure liquid are alternately supplied to the respective systems. A predominantly axially extending flow transition is formed between the flow openings (11-11.Type: ApplicationFiled: February 7, 2007Publication date: June 21, 2007Applicant: KSB AktiengesellschaftInventors: Stephan Bross, Wolfgang Kochanowski
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Publication number: 20070104588Abstract: A pressure exchanger for transferring pressure energy from a liquid flow of one liquid system to a liquid flow of another system including a housing provided with inlet and outlet lines for liquid flows having differing pressure states, and a cylindrical rotor disposed in the housing for rotation about its longitudinal axis. The rotor has a plurality of passageways located on an annular plane surrounding the longitudinal axis of the rotor and having an opening at each axial end face of the rotor. Inlet and outlet ports for the inlet and outlet lines are arranged in the housing at the ends opposite the end faces of the rotor, and sealing zones are arranged between the inlet and outlet ports. Radially extending sealing webs are disposed on the end faces of the rotor between the passageway openings.Type: ApplicationFiled: November 20, 2006Publication date: May 10, 2007Applicant: KSB AktiengesellschaftInventors: Stephan Bross, Wolfgang Kochanowski, Christof Schuler
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Publication number: 20060060245Abstract: A valve for switching fluid paths, particularly for pressure exchanger installations with tubular chambers through which fluid flows in an alternating manner, including a rotatable closing element (12, 13) provided with a motorized drive shaft (14) and arranged inside a housing (2) having a plurality of connections (3, 4) for connecting lines leading to a pipe system and to a respective end of at least one pressure exchanger. Another end of each pressure exchanger is connected through a valve arrangement to a second pipe system. A splitter (7) provided with a plurality of overflow paths (17, 18, 27) is arranged inside the housing (2); mouths of the overflow paths are located on two axial end faces (10, 11) and on the circumference of the splitter (7), and a rotatable, disk-shaped control element (12, 13) is arranged in a sealing manner at each end face of the splitter (7).Type: ApplicationFiled: September 12, 2005Publication date: March 23, 2006Applicant: KSB AKTIENGESELLSCHAFTInventors: Sven Baumgarten, Stephan Bross, Bernhard Brecht, Uwe Bruhns, Mogens Ellegaard, Stefan Flak, Christoph Jaeger, Wolfgang Kochanowski, Wiltrud Knoebl
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Publication number: 20060054223Abstract: A valve for switching over liquid paths, particularly for pressure exchanger installations with tubular pressure exchanger chambers (3) through which an alternating flow occurs, in which a rotatable control element (10, 10.1) having a plurality of flow paths is mounted in a housing (11), which in turn comprises a plurality of connection opening (12, 16, 17, 46) 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 (50) rotates the control element so as to alternately connect the control element flow paths to openings inside housing (11). 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.Type: ApplicationFiled: September 12, 2005Publication date: March 16, 2006Applicant: KSB AKTIENGESELLSCHAFTInventors: Sven Baumgarten, Stephan Bross, Bernhard Brecht, Uwe Bruhns, Stefan Flak, Christoph Jaeger, Wolfgang Kochanowski, Wiltrud Knoebl, Mogens Ellegaard
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Publication number: 20050265866Abstract: 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.Type: ApplicationFiled: June 17, 2005Publication date: December 1, 2005Applicant: KSB AKTIENGESELLSCHAFTInventors: Stephan Bross, Isabel Goltz, Peter Amann
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Publication number: 20050244091Abstract: An element which is to be mounted on a shaft of a non-positive displacement machine and which forms a gap for limited passage of a flowing medium, which includes a bush-like part (2) for mounting on a shaft of the machine having an outer periphery provided with a recess (4) for accommodating a ring (5). During operation of the machine, the ring (5), which is partially surrounded on its faces by circular ring-shaped walls of the recess (4), forms an axial gap with the circular, ring-shaped walls of the recess (4) and a radial gap with the bottom of the recess. Ring (5) is held by frictional contact with a rigid wall (1) which surrounds it. To reduce wear on rings made of soft, flowable material, a second recess is formed in the rigid wall (1) and surrounds the faces of the ring (5) that project from the walls of the bush-like part (2). One of the lateral bounds of the second recess is formed by a tubular part (7) detachably joined to the rigid wall (1).Type: ApplicationFiled: April 15, 2005Publication date: November 3, 2005Applicant: KSB AktiengesellschaftInventors: Stephan Bross, Ruediger Koepp
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Publication number: 20040136825Abstract: Disclosed is a diverter for directing particles that cause wear in a slurry pump away from the stationary face of a slurry pump. The diverter comprises a protrusion that directs particles back into the collector of the pump to reduce the number of particles that go through the impeller nose gap. The protrusion extends from the suction liner face to the front shroud whereby particles can be deflected away from the suction liner face.Type: ApplicationFiled: November 17, 2003Publication date: July 15, 2004Inventors: Graeme R. Addie, Thomas Mueller, Stephan Bross, John Maffett
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Publication number: 20030044272Abstract: Disclosed is a diverter for directing particles that cause wear in a slurry pump away from the stationary face of a slurry pump. The diverter comprises a protrusion that directs particles back into the collector of the pump to reduce the number of particles that go through the impeller nose gap. The protrusion extends from the suction liner face to the front shroud whereby particles can be deflected away from the suction liner face.Type: ApplicationFiled: August 6, 2002Publication date: March 6, 2003Inventors: Graeme R. Addie, Thomas Mueller, Stephan Bross, John Maffett
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Publication number: 20020125649Abstract: A seal which is arranged between a shaft and a casing opening and separates, from one another, two spaces at different pressures, with the exception of a residual annular gap which permits a slight leakage caused by a gap flow. The seal can replace prior seal types and only permits a very small leakage volume flow while being relatively uncomplicated in terms of components, assembly and maintenance. The seal includes a bush (13) tightly surrounding the shaft (2), having at least one grooves (14) in each of which is arranged, with slight axial clearance, an elastic annular element (15, 18, 20, 21, 23) split by a longitudinally extending gap (16, 17, 19). The pressure difference between axial end surfaces of the annular element(s) (15, 18, 20, 21, 23) urges the annular element(s) (15, 18, 20, 21, 23) into sealing contact with the casing opening (3) in such a way that the gap flow is guided via the annular gap between the groove(s) (14) and the annular element(s) (15, 18, 20, 21, 23).Type: ApplicationFiled: December 13, 2001Publication date: September 12, 2002Inventors: Stephan Bross, Gerhard Schwarz, Bernhard Brecht, Ruediger Koepp
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Patent number: 6146095Abstract: 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.Type: GrantFiled: September 15, 1998Date of Patent: November 14, 2000Assignee: KSB AktiengesellschaftInventors: Stephan Bross, Peter Hergt