Patents by Inventor Marzio Lettich

Marzio Lettich 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).

  • Publication number: 20240022130
    Abstract: Stator for a rotary electric machine and having: a magnetic core axially crossed by a plurality of slots; a stator winding comprising a plurality of bars which are arranged inside the slots; a plurality of cooling channels which, in use, are flown through by a cooling fluid and are obtained inside the slots between the bars of the stator winding; and a plurality of covering elements, each of which consists of an electrically insulating plastic material, engages, without clearance, a corresponding slot on all sides of the slot, and centrally has a cavity wherein a series of corresponding bars are arranged and wherein the cooling channels are obtained.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 18, 2024
    Applicant: MARELLI EUROPE S.P.A.
    Inventors: Marzio Lettich, Giacomo David, Enzo Antonio Bellini, Daniele Zecchetti, Vincenzo Giorgianni, Gianluca Cesari
  • Patent number: 10560000
    Abstract: An electric motor including a rotor, rotating about an axis of rotation, and a stator, coaxial to the rotor. The stator has a casing. A body incorporates a controller of the electric motor. The body is placed outside the stator and parallel to the axis of rotation in a position substantially tangent to the casing of the stator. The rotor includes a first and second cooling fan, keyed on respective first and second axial ends of the rotor, opposite along the axis of rotation. The first and second cooling fans generate respectively, with the rotation of the rotor, a first and a second flow of cooling air independent of each other. The first flow of cooling air is directed toward the first axial end of the rotor, and the second flow of cooling air is directed towards the body so as to cool down the controller.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: February 11, 2020
    Assignee: MAGNETI MARELLI S.P.A.
    Inventors: Patrick Giuliani, Francesco Leli, Marzio Lettich, Matteo Cataldi
  • Patent number: 10411560
    Abstract: An electric machine having a tangential architecture comprising a rotor, rotating about an axis of rotation, a stator, coaxial to the rotor with respect to said axis of rotation, the stator comprising a casing which at least partially incorporates the rotor, a power supply body which incorporates a controller for the actuation, the power supply and the control of the electric machine. The power supply body is located outside the stator and parallel to the axis of rotation in a position substantially tangent to the casing of the stator. The controller includes a power module to power the electric machine. The power module is provided with a main heat sink, suitable to dissipate the thermal power emitted by the power module itself, and the power module is thermally insulated from the remaining controller.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 10, 2019
    Assignee: MAGNETI MARELLI S.P.A.
    Inventors: Francesco Leli, Marzio Lettich, Matteo Cataldi
  • Patent number: 10069364
    Abstract: An electric machine comprising a stator including at least one stator winding elements that extends from a first to a second end, separate from each other; at least one electrical bridge suitable to electrically connect the separate ends of said stator winding element; at least a support and attachment plate made of electrically insulating material which defines at least one seat suitable to house at least partially, and retain in position, the electrical bridge. The seat is provided with attachment mechanisms which form at least partially a shaped coupling with the at least one electrical bridge, so as to mechanically lock it in position on the support and attachment plate. The seat allows the passage of the ends of the stator winding element and the electrical connection between the latter and the electrical bridge. The seat electrically insulates the electrical bridge from other components of the stator.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 4, 2018
    Assignee: MAGNETI MARELLI S.P.A.
    Inventors: Marco Magri, Marzio Lettich, Vlad Mihai Constandachi
  • Publication number: 20170346368
    Abstract: An electric motor including a rotor, rotating about an axis of rotation, and a stator, coaxial to the rotor. The stator has a casing. A body incorporates a controller of the electric motor. The body is placed outside the stator and parallel to the axis of rotation in a position substantially tangent to the casing of the stator. The rotor includes a first and second cooling fan, keyed on respective first and second axial ends of the rotor, opposite along the axis of rotation. The first and second cooling fans generate respectively, with the rotation of the rotor, a first and a second flow of cooling air independent of each other. The first flow of cooling air is directed toward the first axial end of the rotor, and the second flow of cooling air is directed towards the body so as to cool down the controller.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 30, 2017
    Inventors: Patrick GIULIANI, Francesco LELI, Marzio LETTICH, Matteo CATALDI
  • Publication number: 20170346366
    Abstract: An electric machine having a tangential architecture comprising a rotor, rotating about an axis of rotation, a stator, coaxial to the rotor with respect to said axis of rotation, the stator comprising a casing which at least partially incorporates the rotor, a power supply body which incorporates means of control for the actuation, the power supply and the control of the electric machine, the power supply body being placed outside the stator and parallel to the axis of rotation in a position substantially tangent to the casing of the stator, the control means comprising a power module to power the electric machine. Advantageously, the power module is provided with a main heat sink, suitable to dissipate the thermal power emitted by the power module itself, and the power module is thermally insulated from the remaining control means.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 30, 2017
    Inventors: Francesco LELI, Marzio LETTICH, Matteo CATALDI
  • Publication number: 20160181881
    Abstract: An electric machine comprising a stator comprising: at least one stator winding elements that extends from a first to a second end, separate from each other, at least one electrical bridge suitable to electrically connect the separate ends of said stator winding element, at least a support and attachment plate made of electrically insulating material which defines at least one seat suitable to house at least partially, and retain in position, the electrical bridge, the seat being provided with attachment means which form at least partially a shaped coupling with the at least one electrical bridge, so as to mechanically lock it in position on the support and attachment plate, said seat allowing the passage of the ends of the stator winding element and the electrical connection between the latter and the electrical bridge, the seat electrically insulating the electrical bridge from other components of the stator.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Inventors: Marco Magri, Marzio Lettich, Vlad Mihai Constandachi