Patents by Inventor Ingvar Hallgren
Ingvar Hallgren 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).
-
Patent number: 10226724Abstract: A separator provides mechanical separation of suspended particles or debris within a fluid. The separator includes a cylindrical body having an inlet pipe for directing the fluid generally tangentially into the cylindrical body, causing the fluid to spin around the inside diameter of the cylindrical body. An outlet pipe, having an outer diameter smaller than the inside diameter of the cylindrical body, can extend from a top end of the cylindrical body into the cylindrical body. Directional blades can be disposed on an outer surface of the outlet pipe, with a gap between the directional blades and the inside surface of the cylindrical body. A baffle dome disposed an a lower end of the cylindrical body slows down the fluid flow, causing the particles and debris to remain below the baffle and settle. The fluid then exits out the outlet pipe as a cleaned fluid.Type: GrantFiled: July 11, 2018Date of Patent: March 12, 2019Assignee: HUSQVARNA ABInventors: Ingvar Hallgren, Daniel Johansson
-
Publication number: 20180326336Abstract: A separator provides mechanical separation of suspended particles or debris within a fluid. The separator includes a cylindrical body having an inlet pipe for directing the fluid generally tangentially into the cylindrical body, causing the fluid to spin around the inside diameter of the cylindrical body. An outlet pipe, having an outer diameter smaller than the inside diameter of the cylindrical body, can extend from a top end of the cylindrical body into the cylindrical body. Directional blades can be disposed on an outer surface of the outlet pipe, with a gap between the directional blades and the inside surface of the cylindrical body. A baffle dome disposed an a lower end of the cylindrical body slows down the fluid flow, causing the particles and debris to remain below the baffle and settle. The fluid then exits out the outlet pipe as a cleaned fluid.Type: ApplicationFiled: July 11, 2018Publication date: November 15, 2018Inventors: Ingvar Hallgren, Daniel Johansson
-
Patent number: 10052579Abstract: A dust collector including a cylindrical cyclone tube, a central outlet channel, a swirl generator, and a swirl reflector is disclosed. The cylindrical cyclone tube can include one or more inlets. The central outlet channel includes a lower inlet end and an upper outlet end, wherein the upper outlet end is located above the one or more inlets. The swirl generator can be configured to generate a swirl between the cylindrical cyclone tube and the central outlet channel, the swirl generator configured to encircle the central outlet channel. The swirl reflector can be located near a bottom of the cylindrical cyclone tube and forming a particle chamber there below. A distance between the swirl reflector and the lower inlet end of the central outlet channel can be between ten to fifty percent of the length of the cylindrical cyclone tube from the one or more inlets to the swirl reflector.Type: GrantFiled: December 31, 2012Date of Patent: August 21, 2018Assignee: HUSQVARNA ABInventors: Ingvar Hallgren, Daniel Johansson
-
Patent number: 8172917Abstract: The invention relates to an apparatus (10) for purifying gas while bleeding a crank housing, said apparatus (10) comprising a housing (12) inside which a separator chamber (14) is provided, a rotor arrangement with a rotor shaft (32) that is rotatably mounted in the housing and a centrifugal rotor (39) located in the separator chamber (14), and a fluid driving device (64) for driving the rotor shaft (32) by means of a driving fluid, the driving device (64) being disposed in a driving chamber (60) that is separated from the separator chamber (14) by means of a housing partition (16), and the rotor shaft (32) extending through a breakthrough in the housing partition (16). In the case of this device, it is provided that a labyrinth-type seal (70) is provided in the zone of the breakthrough in order to seal the driving chamber (60) from the separator chamber (14).Type: GrantFiled: May 2, 2006Date of Patent: May 8, 2012Assignee: Alfa Laval Tumba ABInventors: Serge Kup, Mats-Orjan Pogen, Ingvar Hallgren
-
Patent number: 7875098Abstract: The invention refers to a centrifugal separator comprising a stationary casing defining an inner space, a spindle and a rotating member, which is attached to the spindle and arranged to rotate around an axis of rotation with a rotary speed. The rotating member comprises a number of separating discs which are provided in the inner space. A drive member drives the spindle and the rotating member with said rotary speed. A sensor device senses the rotation of the rotating member in relation to the casing. The sensor device comprises at least one transmitter element which is provided in the inner space on the rotating member and a receiver element which is provided at the casing and arranged to sense the transmitter element. The receiver element is provided on the casing outside the inner space.Type: GrantFiled: May 31, 2006Date of Patent: January 25, 2011Assignee: Alfa Laval Corporate ABInventors: Ingvar Hällgren, Thomas Eliasson, Leif Larsson
-
Publication number: 20090025562Abstract: The invention refers to a centrifugal separator comprising a stationary casing defining an inner space, a spindle and a rotating member, which is attached to the spindle and arranged to rotate around an axis of rotation with a rotary speed. The rotating member comprises a number of separating discs which are provided in the inner space. A drive member drives the spindle and the rotating member with said rotary speed. A sensor device senses the rotation of the rotating member in relation to the casing. The sensor device comprises at least one transmitter element which is provided in the inner space on the rotating member and a receiver element which is provided at the casing and arranged to sense the transmitter element. The receiver element is provided on the casing outside the inner space.Type: ApplicationFiled: May 31, 2006Publication date: January 29, 2009Applicant: Alfa Laaval Corporate ABInventors: Ingvar Hallgren, Thomas Eliasson, Leif Larsson
-
Patent number: 7476266Abstract: In an apparatus for cleaning of gases a centrifugal rotor is supported by two bearings, in which it is rotatable about a rotational axis. The two bearings are lubricated by means of an oil mist, which is generated in a space, when oil is sprayed against a turbine wheel supported by the rotor. Whereas the bearing, which is situated nearest said space, is lubricated by oil mist present in the space, the second bearing is lubricated by oil mist being conducted to it through a central channel in the centrifugal rotor.Type: GrantFiled: August 28, 2003Date of Patent: January 13, 2009Assignee: Alfa Laval Corporate ABInventors: Ingvar Hallgren, Thomas Eliasson
-
Publication number: 20080256912Abstract: The invention relates to an apparatus (10) for purifying gas while bleeding a crank housing, said apparatus (10) comprising a housing (12) inside which a separator chamber (14) is provided, a rotor arrangement with a rotor shaft (32) that is rotatably mounted in the housing and a centrifugal rotor (39) located in the separator chamber (14), and a fluid driving device (64) for driving the rotor shaft (32) by means of a driving fluid, the driving device (64) being disposed in a driving chamber (60) that is separated from the separator chamber (14) by means of a housing partition (16), and the rotor shaft (32) extending through a breakthrough in the housing partition (16). In the case of this device, it is provided that a labyrinth-type seal (70) is provided in the zone of the breakthrough in order to seal the driving chamber (60) from the separator chamber (14).Type: ApplicationFiled: May 2, 2006Publication date: October 23, 2008Applicant: ALFA LAVAL TUMBA ABInventors: Serge Kup, Mats-Orjan Pogen, Ingvar Hallgren
-
Patent number: 7156901Abstract: An apparatus for simultaneous cleaning of a liquid and a gas includes a centrifugal rotor delimiting in a casing a separation chamber that is arranged for through flow and cleaning of the liquid. On the outside of the casing separation discs are mounted for rotation with the centrifugal rotor. Between the separation discs there are formed axially extending separation passages formed for through flow and cleaning of the gas.Type: GrantFiled: July 14, 2004Date of Patent: January 2, 2007Assignee: Alfa Laval Corporate ABInventors: Ingvar Hällgren, Leif Larsson, Rolf Ljungtström
-
Patent number: 7081146Abstract: An apparatus for simultaneous cleaning of a liquid and a gas includes a centrifugal rotor delimiting in a casing a separation chamber that is arranged for through flow and cleaning of the liquid. On the outside of the casing separation discs are mounted for rotation with the centrifugal rotor. Between the separation discs there are formed axially extending separation passages formed for through flow and cleaning of the gas.Type: GrantFiled: October 30, 2002Date of Patent: July 25, 2006Assignee: Alfa Laval Corporate ABInventors: Ingvar Hällgren, Leif Larsson, Rolf Ljungtström
-
Publication number: 20060142135Abstract: In an apparatus for cleaning of gases a centrifugal rotor is supported by two bearings, in which it is rotatable about a rotational axis. The two bearings are lubricated by means of an oil mist, which is generated in a space, when oil is sprayed against a turbine wheel supported by the rotor. Whereas the bearing, which is situated nearest said space, is lubricated by oil mist present in the space, the second bearing is lubricated by oil mist being conducted to it through a central channel in the centrifugal rotor.Type: ApplicationFiled: August 28, 2003Publication date: June 29, 2006Applicant: Alfa Laval Corporate ABInventors: Ingvar Hallgren, Thomas Eliasson
-
Patent number: 7056363Abstract: A centrifugal separator for cleaning of a gas from solid and/or liquid particles suspended therein, includes a stationary housing and a rotor arranged therein. The rotor at its one axial end has a central inlet for gas to be cleaned and delimits a central space communicating with the inlet. Around the central space a stack of conical separation discs is arranged in the rotor. These discs form between themselves several through flow passages which at their one ends communicate with the central space in the rotor and at their other ends communicate directly with a receiving chamber surrounding the rotor in the stationary housing. The rotor supports several turbine blades, which are arranged in a ring around the central inlet of the rotor, and at least one nozzle is adapted to direct a gaseous driving fluid towards the turbine blades for the rotor rotation.Type: GrantFiled: February 11, 2004Date of Patent: June 6, 2006Assignee: Alfa Laval Corporate ABInventors: Claes-Göran Carlsson, Thomas Eliasson, Peter Franzén, Ingvar Hällgren, Torgny Lagerstedt
-
Patent number: 7052529Abstract: In a vehicle adapted to be propelled by means of an internal combustion engine crankcase gases coming from the combustion engine are cleaned by means of a centrifugal separator. The rotor of the centrifugal separator is driven by means of pressurized air delivered by a compressor, e.g. a so called turbo compressor, which is driven by means of the combustion engine. During periods when the compressor delivers pressurized air in an insufficient amount and/or at insufficient pressure the rotor of the centrifugal separator is instead driven by means of pressurized air coming from a container containing so called auxiliary pressurized air. The auxiliary pressurized air may have a substantially larger pressure than the pressurized air normally delivered by the compressor. The combustion engine is used also for accomplishing the overpressure of the auxiliary pressurized air in the container.Type: GrantFiled: October 31, 2001Date of Patent: May 30, 2006Assignee: Alfa Laval Corporate ABInventors: Peter Franzén, Ingvar Hällgren, Leif Larsson
-
Patent number: 7033411Abstract: A centrifugal separator for cleaning of a gas from solid and/or liquid particles suspended therein, includes a stationary housing and a rotor arranged therein. The rotor at its one axial end has a central inlet for gas to be cleaned and delimits a central space communicating with the inlet. Around the central space a stack of conical separation discs is arranged in the rotor. These discs form between themselves several through flow passages which at their one ends communicate with the central space in the rotor and at their other ends communicate directly with a receiving chamber surrounding the rotor in the stationary housing. The rotor supports several turbine blades, which are arranged in a ring around the central inlet of the rotor, and at least one nozzle is adapted to direct a gaseous driving fluid towards the turbine blades for the rotor rotation.Type: GrantFiled: October 18, 2001Date of Patent: April 25, 2006Assignee: Alfa Laval Corporate ABInventors: Claes-Göran Carlsson, Thomas Eliasson, Peter Franzén, Ingvar Hällgren, Torgny Lagerstedt
-
Patent number: 7022163Abstract: In a vehicle air is compressed for being used in the brake system of the vehicle, for instance. In the compressor, used for the compression, the air is contaminated with oil and solid particles. In order to be relieved from these particles, before the air is conveyed through a drying filter, the compressed is brought to rotation by means of a rotating member in a centrifugal separator. The rotating member may advantageously include a pile of conical separation discs forming flow passages between each other for the compressed air to be cleaned. By means of an efficient cleaning of the compressed air from particles the life time of the drying filter may be increased.Type: GrantFiled: February 13, 2004Date of Patent: April 4, 2006Assignee: Alfa Laval Corporate ABInventors: Mats Olsson, Mats-Örjan Pogén, Ingvar Hällgren, Roland Isaksson, Stefan Szepessy
-
Patent number: 6925993Abstract: An apparatus for cleaning of crankcase gas coming from an internal combustion engine can be carried by and be releasably coupled to the combustion engine. For this purpose the apparatus comprises an adapter element, which can be connected with the combustion engine, and a housing, which can be releasably coupled to the adapter element and which delimits a separation chamber. The housing supports in the separation chamber a centrifugal rotor that is rotatable about a vertical rotational axis and is arranged for cleaning of the crankcase gas. The centrifugal rotor has a drive shaft extending downwards through a bottom in the separation chamber and into a drive chamber, in which the drive shaft carries a turbine wheel. A nozzle is arranged to spray pressurized lubricating oil against the turbine wheel for rotation thereof and of the centrifugal rotor.Type: GrantFiled: April 15, 2004Date of Patent: August 9, 2005Assignee: Alfa Laval Corporate ABInventors: Thomas Eliasson, Leif Bengtsson, Ingvar Hällgren, Stefan Szepessy, Jan Skoog
-
Publication number: 20050039604Abstract: An apparatus for simultaneous cleaning of a liquid and a gas includes a centrifugal rotor delimiting in a casing a separation chamber that is arranged for through flow and cleaning of the liquid. On the outside of the casing separation discs are mounted for rotation with the centrifugal rotor. Between the separation discs there are formed axially extending separation passages formed for through flow and cleaning of the gas.Type: ApplicationFiled: July 14, 2004Publication date: February 24, 2005Applicant: Alfa Laval Corporate ABInventors: Ingvar Hallgren, Leif Larsson, Rolf Ljungtstrom
-
Publication number: 20040237792Abstract: An apparatus for simultaneous cleaning of a liquid and a gas includes a centrifugal rotor delimiting in a casing a separation chamber that is arranged for through flow and cleaning of the liquid. On the outside of the casing separation discs are mounted for rotation with the centrifugal rotor. Between the separation discs there are formed axially extending separation passages formed for through flow and cleaning of the gas.Type: ApplicationFiled: July 14, 2004Publication date: December 2, 2004Inventors: Ingvar Hallgren, Leif Larsson, Rolf Ljungtstrom
-
Publication number: 20040226442Abstract: In a vehicle air is compressed for being used in the brake system of the vehicle, for instance. In the compressor, used for the compression, the air is contaminated with oil and solid particles. In order to be relieved from these particles, before the air is conveyed through a drying filter, the compressed is brought to rotation by means of a rotating member in a centrifugal separator. The rotating member may advantageously include a pile of conical separation discs forming flow passages between each other for the compressed air to be cleaned. By means of an efficient cleaning of the compressed air from particles the life time of the drying filter may be increased.Type: ApplicationFiled: February 13, 2004Publication date: November 18, 2004Applicants: Alfa Laval Corporate AB, Haldex Brake Products ABInventors: Mats Olsson, Mats-Orjan Pogen, Ingvar Hallgren, Roland Isaksson, Stefan Szepessy
-
Publication number: 20040159085Abstract: A centrifugal separator for cleaning of a gas from solid and/or liquid particles suspended therein, includes a stationary housing and a rotor arranged therein. The rotor at its one axial end has a central inlet for gas to be cleaned and delimits a central space communicating with the inlet. Around the central space a stack of conical separation discs is arranged in the rotor. These discs form between themselves several through flow passages which at their one ends communicate with the central space in the rotor and at their other ends communicate directly with a receiving chamber surrounding the rotor in the stationary housing. The rotor supports several turbine blades, which are arranged in a ring around the central inlet of the rotor, and at least one nozzle is adapted to direct a gaseous driving fluid towards the turbine blades for the rotor rotation.Type: ApplicationFiled: February 11, 2004Publication date: August 19, 2004Applicant: Alfa Laval Corporate ABInventors: Claes-Goran Carlsson, Thomas Eliasson, Peter Franzen, Ingvar Hallgren, Torgny Lagerstedt