Patents by Inventor Dejan Manfreda

Dejan Manfreda 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: 11495426
    Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier, a coil winding, and a piston. The coil carrier may have a carrier wall which encloses a cavity. The coil winding may have a coil wire wound on a side of the carrier wall facing away from the cavity which provides a magnetic field within the cavity. The piston may be axially adjustable in the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. In the passive position, the piston and the core may define an axial gap therebetween in the cavity. The coil wire may have a first winding section and a second winding section wound in opposing directions. At least one winding of the second winding section may axially overlap the axial gap.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: November 8, 2022
    Assignee: Mahle International GmbH
    Inventor: Dejan Manfreda
  • Patent number: 11335526
    Abstract: A coil carrier for an electromagnetic switch of a starting device including a cavity enclosed by a carrier wall for winding of a coil wire. The carrier wall may extend in an axial direction from a first end wall to a second end wall. The coil carrier may include at least one separating body protruding radially, and extending in a circumferential direction, on a side of the carrier wall facing away from the cavity. The at least one separating body may have a recess which separates a first separating body end of the at least one separating body from a second separating body end of the at least one separating body in the circumferential direction. The at least one separating body may have an axially extending body width that decreases along the circumferential direction.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 17, 2022
    Inventor: Dejan Manfreda
  • Patent number: 11011334
    Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier having a carrier wall enclosing a cavity, a coil winding, a piston, and a ferromagnetic bypass body. During operation, the coil winding may provide a magnetic field within the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. The coil winding may have a coil wire which may be wound around the carrier wall in a first winding direction and an opposing second winding direction. The ferromagnetic bypass body may surround the cavity and may be arranged radially between the cavity and the coil winding. In the passive position of the piston, the bypass body may axially overlap the axial gap. At least one winding of the second winding section may axially overlap the bypass body.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 18, 2021
    Inventor: Dejan Manfreda
  • Patent number: 10927806
    Abstract: A solenoid drive may include a ferromagnetic housing having a coil receiving chamber axially limited by opposing face side walls, a cylindrical coil arrangement having at least one electric coil, the coil arrangement being arranged in the chamber and coaxially surrounding a cylindrical coil interior space, a ferromagnetic plunger stop having a central region projecting axially in the interior space, a ferromagnetic plunger arranged at the housing opposing the plunger stop, and a ferromagnetic bypass device extending in a circumferential direction and arranged coaxially with respect to the coil arrangement and radially within the coil. The plunger may project axially into the coil interior space and may be adjustable axially bi-directionally relative to the housing between active and distal positions, which are proximal and distal, respectively, with respect to the central region. The bypass device may be spaced apart axially from the face side walls.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 23, 2021
    Inventors: Tadej Florijancic, Dejan Manfreda
  • Publication number: 20200075280
    Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier having a carrier wall enclosing a cavity, a coil winding, a piston, and a ferromagnetic bypass body. During operation, the coil winding may provide a magnetic field within the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. The coil winding may have a coil wire which may be wound around the carrier wall in a first winding direction and an opposing second winding direction. The ferromagnetic bypass body may surround the cavity and may be arranged radially between the cavity and the coil winding. In the passive position of the piston, the bypass body may axially overlap the axial gap. At least one winding of the second winding section may axially overlap the bypass body.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventor: Dejan Manfreda
  • Publication number: 20200075279
    Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier, a coil winding, and a piston. The coil carrier may have a carrier wall which encloses a cavity. The coil winding may have a coil wire wound on a side of the carrier wall facing away from the cavity which provides a magnetic field within the cavity. The piston may be axially adjustable in the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. In the passive position, the piston and the core may define an axial gap therebetween in the cavity. The coil wire may have a first winding section and a second winding section wound in opposing directions. At least one winding of the second winding section may axially overlap the axial gap.
    Type: Application
    Filed: August 26, 2019
    Publication date: March 5, 2020
    Inventor: Dejan Manfreda
  • Publication number: 20200075281
    Abstract: A coil carrier for an electromagnetic switch of a starting device including a cavity enclosed by a carrier wall for winding of a coil wire. The carrier wall may extend in an axial direction from a first end wall to a second end wall. The coil carrier may include at least one separating body protruding radially, and extending in a circumferential direction, on a side of the carrier wall facing away from the cavity. The at least one separating body may have a recess which separates a first separating body end of the at least one separating body from a second separating body end of the at least one separating body in the circumferential direction. The at least one separating body may have an axially extending body width that decreases along the circumferential direction.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventor: Dejan Manfreda
  • Publication number: 20190376485
    Abstract: A drive pinion for a starter of an internal combustion engine for engaging in a ring gear of the internal combustion engine may include a toothing including a plurality of teeth each having an active flank, a passive flank, and a head surface. The plurality of teeth may extend radially outwards from a root circle of the toothing. The drive pinion may further include a plurality of bevels disposed on an end side. The plurality of bevels may include a head bevel disposed between the head surface and the end side, a passive flank bevel disposed between the passive flank and the end side, and an active flank bevel disposed between the active flank and the end side.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 12, 2019
    Inventor: Dejan Manfreda
  • Patent number: 10316813
    Abstract: A solenoid drive may include a ferromagnetic housing having a coil receiving chamber axially limited by opposing first and second face side walls, and a cylindrical coil arrangement having at least one electric coil, and being arranged in the coil receiving chamber and coaxially surrounding a cylindrical coil interior space. The solenoid drive may also include a ferromagnetic plunger stop having a central region projecting axially in the coil interior space, and a ferromagnetic plunger arranged at the housing opposing the plunger stop. The plunger may project axially into the coil interior space, and may be adjustable axially bi-directionally between an active position proximal to the central region and a passive position distal to the central region. The solenoid drive may further include a ferromagnetic bypass device arranged coaxially to the coil arrangement, radially within the at least one coil, and spaced apart axially from the face side walls.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 11, 2019
    Assignee: Mahle International GmbH
    Inventors: Tadej Florijancic, Dejan Manfreda
  • Publication number: 20180347536
    Abstract: A solenoid drive may include a ferromagnetic housing having a coil receiving chamber axially limited by opposing face side walls, a cylindrical coil arrangement having at least one electric coil, the coil arrangement being arranged in the chamber and coaxially surrounding a cylindrical coil interior space, a ferromagnetic plunger stop having a central region projecting axially in the interior space, a ferromagnetic plunger arranged at the housing opposing the plunger stop, and a ferromagnetic bypass device extending in a circumferential direction and arranged coaxially with respect to the coil arrangement and radially within the coil. The plunger may project axially into the coil interior space and may be adjustable axially bi-directionally relative to the housing between active and distal positions, which are proximal and distal, respectively, with respect to the central region. The bypass device may be spaced apart axially from the face side walls.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Inventors: Tadej Florijancic, Dejan Manfreda
  • Publication number: 20170175696
    Abstract: A solenoid drive may include a ferromagnetic housing having a coil receiving chamber axially limited by opposing first and second face side walls, and a cylindrical coil arrangement having at least one electric coil, and being arranged in the coil receiving chamber and coaxially surrounding a cylindrical coil interior space. The solenoid drive may also include a ferromagnetic plunger stop having a central region projecting axially in the coil interior space, and a ferromagnetic plunger arranged at the housing opposing the plunger stop. The plunger may project axially into the coil interior space, and may be adjustable axially bi-directionally between an active position proximal to the central region and a passive position distal to the central region. The solenoid drive may further include a ferromagnetic bypass device arranged coaxially to the coil arrangement, radially within the at least one coil, and spaced apart axially from the face side walls.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 22, 2017
    Inventors: Tadej Florijancic, Dejan Manfreda