Patents by Inventor Alexander Kari

Alexander Kari 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: 9784245
    Abstract: The invention relates to a wind turbine gearbox (1) having at least one gearwheel (2) which is mounted on an axle (5), wherein a bearing point with a plain bearing (4) is arranged between the gearwheel (2) and the axle (5), and wherein, in the axle (5), there is formed a recess for the supply of a lubricant to the plain bearing (4). In the region of a contact surface of the plain bearing (4), a groove (18) is formed in the gearwheel (2) or an intermediate space (7) is formed between the plain bearings (4), which groove or intermediate space is connected via at least one connecting line (16) to the surrounding atmosphere.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: October 10, 2017
    Assignee: Miba Gleitlager Austria GmbH
    Inventors: Gunther Hager, Johannes Sebastian Hoelzl, Alexander Kari
  • Patent number: 9683602
    Abstract: The invention relates to a slide bearing set (4), comprising a slide bearing combination consisting of a radial bearing (6) with a radial bearing slide surface (7) and comprising a first axial bearing (8) with an axial bearing slide surface (9), wherein the first axial bearing (8) is arranged next to the radial bearing (6) in an axial direction (10), and with a lubricant supply device, which comprises a supply line (20) for a lubricant to the radial bearing slide surface (7) of the radial bearing (6). At least one first transversal groove (22) is disposed in the radial bearing (6) such that at least one part of the lubricant is deviated towards the first axial bearing (8) and the first axial bearing (8) can be supplied with the lubricant solely via the radial bearing (6).
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: June 20, 2017
    Assignee: Miba Gleitlager Austria GmbH
    Inventors: Gunther Hager, Johannes Sebastian Hoelzl, Alexander Kari
  • Patent number: 9458880
    Abstract: The invention relates to a bearing element (7) for supporting the rotor hub (4) of a wind turbine (1), comprising at least one inner ring element (10, 40) and at least one outer ring element (11, 41), wherein a plain bearing is formed between the inner ring element (10, 40) and the outer ring element (11, 41), and wherein the plain bearing is formed by at least two plain bearings (8, 9, 38, 39) arranged at an axial distance (44) from one other.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 4, 2016
    Assignee: Miba Gleitlager Austria GmbH
    Inventors: Alexander Kari, Christian Forstner
  • Patent number: 9419495
    Abstract: A wind turbine has a rotor and a generator. A planetary transmission is arranged between the rotor and the generator, the planetary transmission being operatively connected to the rotor and the generator. The planetary transmission has at least one planet gear, at least one planet pin, and a planet carrier, the planet gear being arranged on the planet pin. At least one sliding bearing is arranged between the planet pin and the planet carrier, and the planet gear is rotationally fixed to the planet pin.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: August 16, 2016
    Assignee: Miba Gleitlager GmbH
    Inventor: Alexander Kari
  • Publication number: 20150369284
    Abstract: The invention relates to a slide bearing set (4), comprising a slide bearing combination consisting of a radial bearing (6) with a radial bearing slide surface (7) and comprising a first axial bearing (8) with an axial bearing slide surface (9), wherein the first axial bearing (8) is arranged next to the radial bearing (6) in an axial direction (10), and with a lubricant supply device, which comprises a supply line (20) for a lubricant to the radial bearing slide surface (7) of the radial bearing (6). At least one first transversal groove (22) is disposed in the radial bearing (6) such that at least one part of the lubricant is deviated towards the first axial bearing (8) and the first axial bearing (8) can be supplied with the lubricant solely via the radial bearing (6).
    Type: Application
    Filed: January 27, 2014
    Publication date: December 24, 2015
    Applicant: Miba Gleitlager GmbH
    Inventors: Gunther HAGER, Johannes Sebastian HOELZL, Alexander KARI
  • Publication number: 20150361962
    Abstract: The invention relates to a wind turbine gearbox (1) having at least one gearwheel (2) which is mounted on an axle (5), wherein a bearing point with a plain bearing (4) is arranged between the gearwheel (2) and the axle (5), and wherein, in the axle (5), there is formed a recess for the supply of a lubricant to the plain bearing (4). In the region of a contact surface of the plain bearing (4), a groove (18) is formed in the gearwheel (2) or an intermediate space (7) is formed between the plain bearings (4), which groove or intermediate space is connected via at least one connecting line (16) to the surrounding atmosphere.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 17, 2015
    Applicant: Miba Gleitlager GmbH
    Inventors: Gunther HAGER, Johannes Sebastian HOELZL, Alexander KARI
  • Publication number: 20140378261
    Abstract: A wind turbine has a rotor and a generator. A planetary transmission is arranged between the rotor and the generator, the planetary transmission being operatively connected to the rotor and the generator. The planetary transmission has at least one planet gear, at least one planet pin, and a planet carrier, the planet gear being arranged on the planet pin. At least one sliding bearing is arranged between the planet pin and the planet carrier, and the planet gear is rotationally fixed to the planet pin.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 25, 2014
    Applicant: MIBA GLEITLAGER GMBH
    Inventor: Alexander Kari
  • Patent number: 8840521
    Abstract: The invention relates to a gear train (1), in particular a planetary gear train, for a wind turbine comprising a plurality of gears, in particular planet gears (4), which are each supported on a shaft (8) by means of a bearing element, wherein the bearing element is a multi-layer plain bearing (7).
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: September 23, 2014
    Assignee: Miba Gleitlager GmbH
    Inventors: Alexander Kari, Christian Forstner
  • Publication number: 20130071246
    Abstract: The invention relates to a bearing element (7) for supporting the rotor hub (4) of a wind turbine (1), comprising at least one inner ring element (10, 40) and at least one outer ring element (11, 41), wherein a plain bearing is formed between the inner ring element (10, 40) and the outer ring element (11, 41), and wherein the plain bearing is formed by at least two plain bearings (8, 9, 38, 39) arranged at an axial distance (44) from one other.
    Type: Application
    Filed: April 14, 2011
    Publication date: March 21, 2013
    Applicant: Miba Gleitlager GmbH
    Inventors: Alexander Kari, Christian Forstner
  • Publication number: 20130053210
    Abstract: The invention relates to a gear train (1), in particular a planetary gear train, for a wind turbine comprising a plurality of gears, in particular planet gears (4), which are each supported on a shaft (8) by means of a bearing element, wherein the bearing element is a multi-layer plain bearing (7).
    Type: Application
    Filed: April 14, 2011
    Publication date: February 28, 2013
    Applicant: MIBA GLEITLAGER GMBH
    Inventors: Alexander Kari, Christian Forstner