Patents by Inventor Jan Hajek

Jan Hajek 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: 11788444
    Abstract: A two-part oil pan for an internal combustion engine has a box portion and a pan portion. The pan portion forms a floor of the oil pan and the box portion forms a pan wall of the oil pan. On a peripheral edge having a peripheral first sealing surface on the pan portion and a peripheral second sealing surface on the box portion, the box portion and the pan portion are interconnected in a sealed manner by means of first connection means. The pan portion and the box portion additionally are interconnected by at least one second connection means which is arranged within the edge and additionally at a distance from said edge.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: October 17, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Jan Hajek, Frank Horn, Maximilian Rosenberger
  • Publication number: 20220316369
    Abstract: A two-part oil pan for an internal combustion engine has a box portion and a pan portion. The pan portion forms a floor of the oil pan and the box portion forms a pan wall of the oil pan. On a peripheral edge having a peripheral first sealing surface on the pan portion and a peripheral second sealing surface on the box portion, the box portion and the pan portion are interconnected in a sealed manner by means of first connection means. The pan portion and the box portion additionally are interconnected by at least one second connection means which is arranged within the edge and additionally at a distance from said edge.
    Type: Application
    Filed: September 14, 2020
    Publication date: October 6, 2022
    Inventors: Jan HAJEK, Frank HORN, Maximilian ROSENBERGER
  • Patent number: 10438734
    Abstract: A static electric induction system is disclosed. The system includes a heat generating component, cooling fluid, a cooling duct along the heat generating component and a pumping system configured for driving the cooling fluid through the cooling duct, wherein the pumping system is configured for applying a varying flow rate over time of the cooling fluid in the cooling duct along a predetermined flow rate curve which is a function of time.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: October 8, 2019
    Assignee: ABB Schweiz AG
    Inventors: Rebei Bel Fdhila, Tor Laneryd, Jurjen Kranenborg, Andreas Gustafsson, Jan Hajek
  • Publication number: 20180240587
    Abstract: A static electric induction system is disclosed. The system includes a heat generating component, cooling fluid, a cooling duct along the heat generating component and a pumping system configured for driving the cooling fluid through the cooling duct, wherein the pumping system is configured for applying a varying flow rate over time of the cooling fluid in the cooling duct along a predetermined flow rate curve which is a function of time.
    Type: Application
    Filed: June 22, 2016
    Publication date: August 23, 2018
    Inventors: Rebei Bel Fdhila, Tor Laneryd, Jurjen Kranenborg, Andreas Gustafsson, Jan Hajek
  • Patent number: 9466409
    Abstract: An electrical insulation system for a high voltage inductive device includes a cylindrical insulation barrier defining an axial direction, a longitudinal bar having a main extension in the axial direction, the longitudinal bar arranged to support the cylindrical insulation barrier along the axial direction and to provide spacing in a radial direction, and the longitudinal bar having a first side facing the cylindrical insulation barrier and a second side, opposite the first side, having a groove, and a spacer having a main extension in the radial direction, the spacer being arranged to provide spacing in the axial direction, the spacer having a groove fitting end portion. The longitudinal bar is adapted to receive the groove fitting end portion of the spacer in the groove, and wherein the spacer is dimensioned so relative to the groove that the groove captures any streamer propagating from the spacer towards the cylindrical insulation barrier.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: October 11, 2016
    Assignee: ABB Schweiz AG
    Inventors: Anders Bo Eriksson, Uno Gäfvert, Josë-Luis Del Real, Jan Hajek
  • Publication number: 20160093421
    Abstract: An electrical insulation system for a high voltage inductive device includes a cylindrical insulation barrier defining an axial direction, a longitudinal bar having a main extension in the axial direction, the longitudinal bar arranged to support the cylindrical insulation barrier along the axial direction and to provide spacing in a radial direction, and the longitudinal bar having a first side facing the cylindrical insulation barrier and a second side, opposite the first side, having a groove, and a spacer having a main extension in the radial direction, the spacer being arranged to provide spacing in the axial direction, the spacer having a groove fitting end portion. The longitudinal bar is adapted to receive the groove fitting end portion of the spacer in the groove, and wherein the spacer is dimensioned so relative to the groove that the groove captures any streamer propagating from the spacer towards the cylindrical insulation barrier.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 31, 2016
    Applicant: ABB TECHNOLOGY LTD
    Inventors: Anders Bo Eriksson, Uno Gäfvert, José-Luis Del Real, Jan Hajek
  • Patent number: 9013260
    Abstract: A cable for winding of an electromagnetic device. The cable includes a conductor, and a layer including a magnetic material having a relative permeability in the range 2 to 100000, wherein the layer at least partly surrounds the conductor.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 21, 2015
    Assignee: ABB Research Ltd.
    Inventors: Christer Tornkvist, Goran Eriksson, Jan Hajek, Joachim Schiessling, Manoj Pradhan
  • Publication number: 20140035712
    Abstract: A cable for winding of an electromagnetic device. The cable includes a conductor, and a layer including a magnetic material having a relative permeability in the range 2 to 100000, wherein the layer at least partly surrounds the conductor.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Inventors: Christer Thornkvist, Goran Eriksson, Jan Hajek, Joachim Schiessling, Manoj Pradhan
  • Patent number: 8198967
    Abstract: An induction device to be used in association with a high voltage electric transmission systems having at least one winding, at least one core frame, and at least one magnetic core leg arranged in the core frame. The core frame includes a plurality of core gaps including a plurality of spacers, and a plurality of core segments of a magnetic material. The core segments are being separated by at least one of the core gaps, and the winding is causing electromagnetic attraction forces to act in the core gaps. The induction device further includes at least one piezoelectric element arranged in one of the core gaps, and a control unit connected to the piezoelectric element. The control unit is arranged to provide an electrical signal for inducing vibrations of the piezoelectric element which counteract the electromagnetic attraction forces acting in the core gaps.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: June 12, 2012
    Assignee: ABB Technology AG
    Inventors: Anders Bo Eriksson, Julia Forslin, Jan Anger, Jan Hajek
  • Patent number: 8183972
    Abstract: An oil filled high power transformer for high voltages with coils. The transformer including a number of stacked layers of, in the main concentric, insulated conductors forming transformer coils. The winding layers are separated by spacers. One or more spacers are provided with at least one integrated electrical discharge barrier extending off the central body of the spacer in the vicinity of the area where the spacer is in contact with a winding. Breakdown along spacer and alongside the spacer-oil interface is reduced getting improved breakdown strength of the oil filled transformer.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: May 22, 2012
    Assignee: ABB Technology Ltd.
    Inventors: Arne Hjortsberg, Jan Hajek
  • Publication number: 20110298573
    Abstract: An electrical machine with an axis. The machine includes a winding arranged in a plurality of substantially circular turns wound around the axis. Wedge formed areas are formed between two adjacent turns of the winding. A member of insulating material is arranged to cover at least one of the wedge formed areas.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 8, 2011
    Inventors: Arne Hjortsberg, Jan Hajek
  • Publication number: 20110227687
    Abstract: An induction device to be used in association with a high voltage electric transmission systems having at least one winding, at least one core frame, and at least one magnetic core leg arranged in the core frame. The core frame includes a plurality of core gaps including a plurality of spacers, and a plurality of core segments of a magnetic material. The core segments are being separated by at least one of the core gaps, and the winding is causing electromagnetic attraction forces to act in the core gaps. The induction device further includes at least one piezoelectric element arranged in one of the core gaps, and a control unit connected to the piezoelectric element. The control unit is arranged to provide an electrical signal for inducing vibrations of the piezoelectric element which counteract the electromagnetic attraction forces acting in the core gaps.
    Type: Application
    Filed: June 3, 2011
    Publication date: September 22, 2011
    Inventors: Anders Bo Eriksson, Julia Forslin, Jan Anger, Jan Hajek
  • Publication number: 20110037551
    Abstract: An oil filled high power transformer for high voltages with coils. The transformer including a number of stacked layers of, in the main concentric, insulated conductors forming transformer coils. The winding layers are separated by spacers. One or more spacers are provided with at least one integrated electrical discharge barrier extending off the central body of the spacer in the vicinity of the area where the spacer is in contact with a winding. Breakdown along spacer and alongside the spacer-oil interface is reduced getting improved breakdown strength of the oil filled transformer.
    Type: Application
    Filed: September 29, 2006
    Publication date: February 17, 2011
    Applicant: ABB Technology Ltd
    Inventors: Arne Hjortsberg, Jan Hajek
  • Patent number: 4077800
    Abstract: An economical procedure for the recovery of platinum from a spent catalyst involves subjecting the catalyst to fluorination with elementary fluorine or a mixture thereof with hydrogen fluoride at a temperature ranging from 100.degree.-600.degree. C. The resultant platinum fluoride is then converted to platinum in elemental form.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: March 7, 1978
    Assignee: Vysoka skola chemicko-technologicka
    Inventors: Ivo Peka, Ludek Vodicka, Jan Ulrich, Jan Hajek