Patents by Inventor Denis Kern

Denis Kern 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: 8973363
    Abstract: The invention relates to an electric motor, in particular for a motor vehicle, comprising a housing (9), a shaft (8) having an axle (30), a stator and a rotor, at least one channel (11) for conducting a coolant for cooling the electric motor (5), wherein the geometry of the alignment of at least one section (12) of the at least one channel (11) is designed such that the coolant flows in the direction of the axle (30) of the shaft (8) through the at least one channel (11), having a deviation of less than 40°.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 10, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Thorsten Rohwer, Denis Kern, Andreas Herzberger
  • Publication number: 20140069099
    Abstract: The invention relates to an electric motor, in particular for a motor vehicle, comprising a housing (9), a shaft (8) having an axle (30), a stator and a rotor, at least one channel (11) for conducting a coolant for cooling the electric motor (5), wherein the geometry of the alignment of at least one section (12) of the at least one channel (11) is designed such that the coolant flows in the direction of the axle (30) of the shaft (8) through the at least one channel (11), having a deviation of less than 40°.
    Type: Application
    Filed: March 2, 2010
    Publication date: March 13, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Thorsten Rohwer, Denis Kern, Andreas Herzberger
  • Patent number: 8424186
    Abstract: A method for manufacturing an electric machine, made up of a housing, a stator accommodated in the housing, which is formed from a stator body and stator windings, a rotor, which is supported in the housing so as to be rotatable about a rotor axis, and a bearing support fastened on the housing, includes a housing foam part manufactured from at least three individual foam parts and a housing cast blank manufactured using the housing foam part in accordance with a lost foam casting method. Individual foam parts are made up of a center disk having an essentially hollow-cylindrical design and forming an intermediate piece of a housing foam part, an annular disk having an essentially hollow-cylindrical design and forming another intermediate piece of the housing foam part, and a bearing support disk having an essentially cup-shaped design and forming an end of the housing foam part.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: April 23, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Denis Kern, Andreas Herzberger
  • Publication number: 20120091833
    Abstract: The invention relates to an electric machine (5), in particular for a motor vehicle, comprising a housing (9), at least one shaft (8), a stator (6), a rotor (7), a cooling circuit for cooling the electric machine (5) using a liquid, in particular oil, wherein the liquid can be conveyed from at least one at least partially radially aligned channel (11) into at least one rotating part (12) of the electric machine (5) due to a rotational movement of the at least one channel (11), at least one outlet opening (13) for draining the liquid from the at least one channel (11), wherein the electric machine (5) is provided with at least one agent (14) for reducing the conveyed amount per unit time of liquid that can be conveyed from the at least one channel (11) due to the rotational movement of the at least one channel (11).
    Type: Application
    Filed: February 19, 2010
    Publication date: April 19, 2012
    Applicant: ROBERT BOSCH GMBH
    Inventors: Douglas-Brent Hackett, Thorsten Rohwer, Denis Kern, Paul Esse, Christian Buehnert, Andreas Herzberger, Jens Koerkemeyer
  • Publication number: 20100181873
    Abstract: A method for manufacturing an electric machine, made up of a housing, a stator accommodated in the housing, which is formed from a stator body and stator windings, a rotor, which is supported in the housing so as to be rotatable about a rotor axis, and a bearing support fastened on the housing, the housing being manufactured in that a housing foam part is manufactured from at least three individual foam parts and a housing cast blank is manufactured using the housing foam part in accordance with a lost foam casting method. For this purpose, individual foam parts are made up of a center disk, which has an essentially hollow-cylindrical design and forms an intermediate piece of a housing foam part, an annular disk, which has an essentially hollow-cylindrical design and forms another intermediate piece of the housing foam part, and a bearing support disk, which has an essentially cup-shaped design and forms an end of the housing foam part.
    Type: Application
    Filed: June 10, 2009
    Publication date: July 22, 2010
    Applicant: ROBERT BOSCH GmbH
    Inventors: Denis Kern, Andreas Herzberger