Patents by Inventor Hans Moberg
Hans Moberg 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: 10086384Abstract: The invention relates to a centrifugal separator having a separation space with a set of separation plates, an inlet configured to feed a fluid product to be separated into the separation space, the inlet and the separation space being connected in a pressure mediating manner, a first and a second outlet extending from the separation space for discharge of a two phases of the product. A discharge control system is configured to trigger the opening of the second outlet upon a trigger condition, wherein the discharge control system comprises a sensor arranged to determine the inlet pressure and/or the inlet flow of fluid product, and the trigger condtion is associated with a decrease in inlet flow in relation to inlet pressure, indicating an increasing flow resistance downstream of the inlet. The invention further relates to a discharge control system and a method of controlling the intermittent discharge of a centrifugal separator.Type: GrantFiled: March 22, 2013Date of Patent: October 2, 2018Assignee: ALFA LAVAL CORPORATE ABInventors: Peter Thorwid, Roland Isaksson, Hans Moberg, Carl Häggmark, Göran Krook
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Patent number: 9975127Abstract: A centrifugal separator for separating a fluid mixture into components, including a non-rotating part, a rotor which is attached to a shaft which is rotatably supported in the non-rotating part around a rotational axis, which rotor forms within itself a separation space delimited by a rotor wall. The separator includes an inlet extending into the rotor for supply of a fluid mixture to be separated in the separation space, at least one sensor measuring unbalance conditions in the frame; a level determining arrangement including two or more space defining elements of arbitrary form arranged on the interior surface of, or close to, the rotor wall, where each space defining element defines a space which communicates with the separation space or another of the space defining elements through at least one inlet opening arranged at a certain radius from the rotational axis and not outside that radius and where that certain radii of the space defining elements are different.Type: GrantFiled: May 27, 2014Date of Patent: May 22, 2018Assignee: ALFA LAVAL CORPORATE ABInventors: Lars Hillström, Hans Moberg, Finn Rundström, Peter Thorwid, Roland Isaksson, Jan Skoog
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Patent number: 9475068Abstract: An inlet device for a centrifugal separator for directing the liquid mixture that is to be separated from an inlet pipe to a separation chamber is rotatable around a central rotational axis. The inlet device includes a central conical receiving structure arranged around the axis and including a central receiving zone for receiving the liquid mixture from the inlet pipe and wherein the zone surrounds the apex of the conical receiving structure. The inlet device further includes at least one inlet channel for directing the liquid from the receiving zone to the separation chamber, wherein the channel extends from the periphery of the receiving zone and spirals down the outer surface of the conical receiving structure. Further, the at least one inlet channel extends from the receiving zone in a direction that forms an angle ? with the tangent of the periphery of the receiving zone and ? is less than 90°.Type: GrantFiled: February 11, 2014Date of Patent: October 25, 2016Assignee: ALFA LAVAL CORPORATE ABInventors: Hans Moberg, Tomas Oldebäck
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Publication number: 20160074881Abstract: A centrifugal separator for separating a fluid mixture into components, including a non-rotating part, a rotor which is attached to a shaft which is rotatably supported in the non-rotating part around a rotational axis, which rotor forms within itself a separation space delimited by a rotor wall. The separator includes an inlet extending into the rotor for supply of a fluid mixture to be separated in the separation space, at least one sensor measuring unbalance conditions in the frame; a level determining arrangement including two or more space defining elements of arbitrary form arranged on the interior surface of, or close to, the rotor wall, where each space defining element defines a space which communicates with the separation space or another of the space defining elements through at least one inlet opening arranged at a certain radius from the rotational axis and not outside that radius and where that certain radii of the space defining elements are different.Type: ApplicationFiled: May 27, 2014Publication date: March 17, 2016Applicant: ALFA LAVAL CORPORATE ABInventors: Lars HILLSTRÖM, Hans MOBERG, Finn RUNDSTRÖM, Peter THORWID, Roland ISAKSSON, Jan SKOOG
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Patent number: 9186687Abstract: A system includes a hermetic centrifugal separator, a recirculation system, a first monitoring system, a first control system, a pressure monitoring system, and a pressure control system. The separator includes a rotor, a separation chamber, an inlet channel for separating components, a first outlet channel for receiving separated light components, and a second outlet channel for receiving separated heavy components. The recirculation system recirculates the separated heavy components from the second outlet channel to the separation chamber. The first monitoring system monitors density and/or flow rate of the heavy components in the second outlet channel. The first control system controls flow rate in response to a control signal from the first monitoring system. The pressure monitoring system monitors pressure in the second outlet channel. The pressure control system controls a back pressure valve in the second outlet channel in response to a control signal from the pressure monitoring means.Type: GrantFiled: January 28, 2011Date of Patent: November 17, 2015Assignee: Alfa Laval Corporate ABInventors: Carl Häggmark, Sverker Danielsson, Peter Thorwid, Roland Isaksson, Hans Moberg, Johan Agrell, Anders Svensson
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Publication number: 20150314306Abstract: An inlet device for a centrifugal separator for directing the liquid mixture that is to be separated from an inlet pipe to a separation chamber is rotatable around a central rotational axis. The inlet device includes a central conical receiving structure arranged around the axis and including a central receiving zone for receiving the liquid mixture from the inlet pipe and wherein the zone surrounds the apex of the conical receiving structure. The inlet device further includes at least one inlet channel for directing the liquid from the receiving zone to the separation chamber, wherein the channel extends from the periphery of the receiving zone and spirals down the outer surface of the conical receiving structure. Further, the at least one inlet channel extends from the receiving zone in a direction that forms an angle a with the tangent of the periphery of the receiving zone and a is less than 90°.Type: ApplicationFiled: February 11, 2014Publication date: November 5, 2015Applicant: ALFA LAVAL CORPORATE ABInventors: Hans MOBERG, Tomas OLDEBÄCK
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Publication number: 20150045199Abstract: The invention relates to a centrifugal separator having a separation space with a set of separation plates, an inlet configured to feed a fluid product to be separated into the separation space, the inlet and the separation space being connected in a pressure mediating manner, a first and a second outlet extending from the separation space for discharge of a two phases of the product. A discharge control system is configured to trigger the opening of the second outlet upon a trigger condition, wherein the discharge control system comprises a sensor arranged to determine the inlet pressure and/or the inlet flow of fluid product, and the trigger condtion is associated with a decrease in inlet flow in relation to inlet pressure, indicating an increasing flow resistance downstream of the inlet. The invention further relates to a discharge control system and a method of controlling the intermittent discharge of a centrifugal separator.Type: ApplicationFiled: March 22, 2013Publication date: February 12, 2015Applicant: ALFA LAVAL CORPORATE ABInventors: Peter Thorwid, Roland Isaksson, Hans Moberg, Carl Häggmark, Göran Krook
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Publication number: 20130029828Abstract: The present invention relates to a system comprising a hermetic centrifugal separator where the separator comprises a rotor including a separation chamber, an inlet channel for a mixture of components to be separated, a first outlet channel for receiving at least one separated light component, and a second outlet channel for receiving at least one separated heavy component.Type: ApplicationFiled: January 28, 2011Publication date: January 31, 2013Applicant: ALFA LAVAL CORPORATE ABInventors: Carl Häggmark, Sverker Danielsson, Peter Thorwid, Roland Isaksson, Hans Moberg, Johan Agrell, Anders Svensson
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Patent number: 8241507Abstract: A method and a device for separation of a fluid in the liquid state comprising two liquids that are not mutually miscible, with different densities, wherein a first liquid is to be cleansed from a second liquid, whereby the fluid in the liquid state is conducted through a rotor where centrifugal separation of the second liquid from the first liquid takes place, and is then conducted into a tank, with the proportion of the second liquid being reduced to less than 5%, and by conducting the fluid, after centrifugal separation, through a restriction, whereby the pressure of the fluid in the liquid state is reduced, which causes portions of the fluid in the liquid state to evaporate so that further portions of the second liquid escape in the form of a gas which is conducted away, thereby further reducing the proportion of the second liquid in the outgoing fluid in the liquid state.Type: GrantFiled: November 1, 2007Date of Patent: August 14, 2012Assignee: Alfa-Laval Corporate ABInventors: Claes-Göran Carlsson, Leonard Borgström, Carl Häggmark, Hans Moberg, Jan Skoog
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Patent number: 7789076Abstract: This document describes a device for cleaning of crankcase gases from a combustion engine, and a combustion engine having such a device. An inlet conduit is connected to a crankcase of the combustion engine. A centrifugal separator receives a flow of crankcase gases from the crankcase via the inlet conduit and comprises a routable centrifuge rotor for centrifuging the crankcase gases. A drive device drives the centrifuge rotor. An outlet conduit discharges cleaned crankcase gases from the centrifugal separator. The rotary speed of the drive device, and thus the rotary speed of the centrifuge rotor, is controllable depending on the gas pressure in the crankcase. An export conduit may be connected to the inlet conduit and adapted to enable discharge of a flow of crankcase gases from the crankcase by-passing the centrifugal separator depending on the gas pressure in the crankcase.Type: GrantFiled: November 21, 2005Date of Patent: September 7, 2010Assignee: Alfa Laval Corporate ABInventors: Leonard Borgström, Claes-Göran Carlsson, Hans Moberg, Jan Skoog, Carl Häggmark
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Publication number: 20100084314Abstract: A method and a device for separation of a fluid in the liquid state comprising two liquids that are not mutually miscible, with different densities, wherein a first liquid is to be cleansed from a second liquid, whereby the fluid in the liquid state is conducted through a rotor where centrifugal separation of the second liquid from the first liquid takes place, and is then conducted into a tank, with the proportion of the second liquid being reduced to less than 5%, and by conducting the fluid, after centrifugal separation, through a restriction, whereby the pressure of the fluid in the liquid state is reduced, which causes portions of the fluid in the liquid state to evaporate so that further portions of the second liquid escape in the form of a gas which is conducted away, thereby further reducing the proportion of the second liquid in the outgoing fluid in the liquid state.Type: ApplicationFiled: November 1, 2007Publication date: April 8, 2010Applicant: ALFA LAVAL CORPORATE ABInventors: Claes-Goran Carlsson, Leonard Borgstrom, Carl Haggmark, Hans Moberg, Jan Skoog
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Publication number: 20090223496Abstract: This document describes a device for cleaning of crankcase gases from a combustion engine, and a combustion engine having such a device. An inlet conduit is connected to a crankcase of the combustion engine. A centrifugal separator receives a flow of crankcase gases from the crankcase via the inlet conduit and comprises a routable centrifuge rotor for centrifuging the crankcase gases. A drive device drives the centrifuge rotor. An outlet conduit discharges cleaned crankcase gases from the centrifugal separator. The rotary speed of the drive device, and thus the rotary speed of the centrifuge rotor, is controllable depending on the gas pressure in the crankcase. An export conduit may be connected to the inlet conduit and adapted to enable discharge of a flow of crankcase gases from the crankcase by-passing the centrifugal separator depending on the gas pressure in the crankcase.Type: ApplicationFiled: November 21, 2005Publication date: September 10, 2009Applicant: Alfa Laval Corporate ABInventors: Leonard Borgstrom, Claes-Goran Carlsson, Hans Moberg, Jan Skoog, Carl Haggmark
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Patent number: 7118521Abstract: A centrifugal separator has a centrifugal rotor that is rotatable about a vertical axis and has both a rotor body for separation of two liquids, having different densities, and a pumping member that is designed to pump via the outside of a conical body a mixture of said two liquids into the rotor body from a surface layer of a liquid body situated below the rotor body.Type: GrantFiled: January 23, 2003Date of Patent: October 10, 2006Assignee: Alfa Laval Corporate ABInventors: Leonard Borgstrom, Claes-Goran Carlsson, Peter Franzen, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy
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Patent number: 7022150Abstract: In a centrifugal separator, the rotor of which is adapted to be driven by means of a gaseous driving fluid, the rotor itself supports a ring of turbine blades extending around the rotational axis of the rotor. A stationary nozzle is adapted to direct a flow of the driving fluid towards the ring of turbine members. After the driving fluid has passed between the turbine blades and has influenced them for driving of the centrifugal rotor, it enters a reversing chamber formed by a stationary reversing member. In the reversing chamber the driving fluid is caused to change its direction and is then conducted again towards the ring of turbine members in order to be utilized a second time for driving of the centrifugal rotor.Type: GrantFiled: October 19, 2001Date of Patent: April 4, 2006Assignee: Alfa Laval Corporate ABInventors: Leonard Borgström, Claes-Göran Carlsson, Peter Franzén, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy
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Publication number: 20050170943Abstract: A centrifugal separator has a centrifugal rotor that is rotatable about a vertical axis and has both a rotor body for separation of two liquids, having different densities, and a pumping member that is designed to pump via the outside of a conical body a mixture of said two liquids into the rotor body from a surface layer of a liquid body situated below the rotor body.Type: ApplicationFiled: January 23, 2003Publication date: August 4, 2005Applicant: Alfa Laval Corporate ABInventors: Leonard Borgstrom, Claes-Goran Carlsson, Peter Franzen, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy
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Patent number: 6821319Abstract: In connection with cleaning of gas from particles suspended therein and being heavier than the gas the gas is caused to rotate in a chamber delimited in a stationary housing, so that the particles by centrifugal force are separated from the gas and are thrown towards a stationary housing. The rotation of the gas is accomplished by means of a rotor, which includes a stack of conical separation discs arranged coaxially with each other and concentrically with the rotational axis of the rotor. The gas to be cleaned is caused to flow through interspaces between the separation discs, while they are rotating, the particles by the centrifugal force being brought into contact with the insides of the separation discs. In contact with the insides of the separation discs the particles first move along the generatrices of the separation discs and then move along inclined guiding members, which are arranged in contact with said insides.Type: GrantFiled: September 17, 2002Date of Patent: November 23, 2004Assignee: Alfa Laval ABInventors: Hans Moberg, Torgny Lagerstedt, Claes Inge, Claes-Göran Carlsson, Stefan Szepessy, Peter Franzén, Leonard Borgström
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Patent number: 6751951Abstract: Gases produced by a combustion engine, e.g. crankcase gases, are conducted through a separation chamber formed and surrounded by a centrifugal rotor, by means of which the gases are caused to rotate, so that particles suspended in the gases are separated by means of centrifugal force. The centrifugal rotor is caused to rotate by means of a pressure fluid that is generated by means of the combustion engine.Type: GrantFiled: January 9, 2003Date of Patent: June 22, 2004Assignee: Alfa Laval ABInventors: Leonard Borgström, Claes Göran Carlsson, Peter Franzén, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy, Tommy Myrvang
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Publication number: 20040025482Abstract: In a centrifugal separator, the rotor (19) of which is adapted to be driven by means of a gaseous driving fluid, the rotor itself supports a ring of turbine blades (34) extending around the rotational axis (R) of the rotor. A stationary nozzle (40) is adapted to direct a flow of the driving fluid towards the ring of turbine members (34). After the driving fluid has passed between the turbine blades (34) and has influenced them for driving of the centrifugal rotor, it enters a reversing chamber (41) formed by a stationary reversing member (42). In the reversing chamber the driving fluid is caused to change its direction and is then conducted again towards the ring of turbine members (34) in order to be utilized a second time for driving of the centrifugal rotor.Type: ApplicationFiled: August 13, 2003Publication date: February 12, 2004Inventors: Leonard Borgstrom, Claes-Goran Carlsson, Peter Franzen, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy
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Publication number: 20030097835Abstract: Gases produced by a combustion engine (1), e.g. crankcase gases, are conducted through a separation chamber formed and surrounded by a centrifugal rotor (R), by means of which the gases are caused to rotate, so that particles suspended in the gases are separated by means of centrifugal force. The centrifugal rotor (R) is caused to rotate by means of a pressure fluid that is generated by means of the combustion engine (1).Type: ApplicationFiled: January 9, 2003Publication date: May 29, 2003Applicant: Alfa Laval ABInventors: Leonard Borgstrom, Claes Goran Carlsson, Peter Franzen, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy, Tommy Myrvang
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Patent number: 6536211Abstract: Gases produced by a combustion engine (1), e.g. crankcase gases, are conducted through a separation chamber formed and surrounded by a centrifugal rotor (R), by means of which the gases are caused to rotate, so that particles suspended in the gases are separated by means of centrifugal force. The centrifugal rotor (R) is caused to rotate by means of a pressure fluid that is generated by means of the combustion engine (1).Type: GrantFiled: December 4, 2000Date of Patent: March 25, 2003Assignee: Alfa Laval ABInventors: Leonard Borgström, Claes Göran Carlsson, Peter Franzén, Claes Inge, Torgny Lagerstedt, Hans Moberg, Stefan Szepessy, Tommy Myrvang