Patents by Inventor Witold Joschko

Witold Joschko 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: 11462971
    Abstract: An electric fluid pump for a motor vehicle includes an electric drive motor which is brushless and electronically commutated. The electric drive motor includes a permanent-magnetic motor rotor having a motor shaft and at least two rotor poles, each of the at least two rotor poles having one permanent magnet embedded therein, a plurality of stator-side magnetic coils, at least two sensor magnets each emitting an axial magnetic field and each having polarities, and at least one Hall sensor which is arranged to lie eccentrically in a transverse plane so that the at least one Hall sensor detects the axial magnetic fields of the at least two sensor magnets. The at least two sensor magnets are magnetized diametrically. The at least one Hall sensor is arranged to detect the polarities of each of the at least two sensor magnets during one revolution of the permanent-magnetic motor rotor.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 4, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Alessandro Malvasi, Christian Schulz, Frank Buerger, Martin Glogasa, Witold Joschko
  • Patent number: 11451045
    Abstract: An automotive auxiliary unit includes an electronic protection unit. The electronic protection unit includes an inverse-polarity protection unit having a semiconductor switch, and an overcurrent protection unit which detects a voltage drop at the semiconductor switch of the inverse-polarity protection unit so as to determine a present current level.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 20, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Witold Joschko, Stephan Riefers
  • Publication number: 20210050717
    Abstract: An automotive auxiliary unit includes an electronic protection unit. The electronic protection unit includes an inverse-polarity protection unit having a semiconductor switch, and an overcurrent protection unit which detects a voltage drop at the semiconductor switch of the inverse-polarity protection unit so as to determine a present current level.
    Type: Application
    Filed: February 5, 2018
    Publication date: February 18, 2021
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: WITOLD JOSCHKO, STEPHAN RIEFERS
  • Publication number: 20200251965
    Abstract: An electric fluid pump for a motor vehicle includes an electric drive motor which is brushless and electronically commutated. The electric drive motor includes a permanent-magnetic motor rotor having a motor shaft and at least two rotor poles, each of the at least two rotor poles having one permanent magnet embedded therein, a plurality of stator-side magnetic coils, at least two sensor magnets each of which emit an axial magnetic field, and at least one Hall sensor which is arranged to lie eccentrically in a transverse plane so that the at least one Hall sensor detects the axial magnetic fields of the at least two sensor magnets. The at least two sensor magnets are magnetized diametrically. The at least one Hall sensor is arranged so that during one revolution of the permanent-magnetic motor rotor, both polarities are detectable by each of the at least two sensor magnets.
    Type: Application
    Filed: October 25, 2017
    Publication date: August 6, 2020
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALESSANDRO MALVASI, CHRISTIAN SCHULZ, FRANK BUERGER, MARTIN GLOGASA, WITOLD JOSCHKO
  • Publication number: 20140010684
    Abstract: An electric coolant pump for a motor vehicle includes a wet section in which is arranged an impeller and a permanently magnetized motor rotor of an electronically commutated electromotor, a dry section in which is arranged an electric circuit board comprising a plurality of power semiconductors which each comprise a cooling lug, and a partition wall lying in a traverse plane. The partition wall is arranged to separate the wet section and the dry section. The plurality of power semiconductors are each arranged on a proximal side of the electric circuit board facing the partition wall. Each cooling lug is arranged on a cooling lug conductor strip. On a side of the partition wall facing the electric circuit board, the partition wall comprises a heat conductor which is configured to be electrically non-conductive. The heat conductor is arranged to rest directly on a respective cooling lug conductor strip.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 9, 2014
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Witold Joschko, Thomas Joachim Gibat
  • Publication number: 20110289730
    Abstract: The invention relates to a door handle arrangement for a motor vehicle having a handle component that has a handle (1) and at least one fastener section (3, 4) connected to the handle. The fastener section can be coupled to a fastener receptacle arranged in a door of the motor vehicle. A first conducive coil, the winding of which surrounds a hub (16) arranged in the handle component, is arranged in the handle component, wherein the hub extends at least partially in the listener section (3, 4) of the handle component. In the region of the fastener receptacle on the vehicle side, a second conductive coil is designed such that the hub arranged in the handle component (16) extends through the second coil upon coupling of the fastener section to the fastener receptacle.
    Type: Application
    Filed: November 10, 2009
    Publication date: December 1, 2011
    Inventors: Bernd Gerdes, Bernd Reifenberg, Witold Joschko, Klaus-Dieter Kulik, Stephan Riefers