Patents by Inventor Kurt Kirsten

Kurt Kirsten 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: 8985857
    Abstract: A bearing unit for a turbocharger, including a bearing housing extending in an axial direction and also including a bearing cartridge arranged within the bearing housing, wherein between the outer circumference of the bearing cartridge and the bearing housing there is formed an intermediate space with an oil film, and wherein the bearing housing has a supply bore formed for the supply of oil to the oil film. The bearing cartridge includes a rolling bearing, the outer cartridge ring of which is mounted in a freely rotatable manner in the oil film. A bearing unit for a turbocharger, the bearing cartridge of which includes a rolling bearing, the bearing outer ring of which is mounted in a freely rotatable manner in the oil film. By means of bearing units of such design, it is possible to ensure the secure mounting of a shaft even without a separate twist prevention device.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: March 24, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Heiko Schmidt, Kurt Kirsten, Peter Solfrank, Christopher Mitchell
  • Patent number: 8833318
    Abstract: A device (11) for the variable adjusting of the control timing of gas exchange valves (9, 10) of an internal combustion engine (1) with a drive element (13), an output element (14), at least one pressure chamber (23) and a volume accumulator (31), wherein the output element (14) is arranged in a rotatable manner to the drive element (13), and the pressure chamber (23) is bordered at least partially by these components (13, 14), wherein a phase position between the output element (14) and the drive element (13) can be variably adjusted by the pressure medium supply to or pressure medium removal from the pressure chamber (23). Pressure medium lines (25a, b, p) are provided by which the pressure medium can be supplied to the pressure chamber (23) or removed therefrom.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 16, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Andreas Strauss, Kurt Kirsten
  • Publication number: 20140086731
    Abstract: A bearing unit for a turbocharger, including a bearing housing extending in an axial direction and also including a bearing cartridge arranged within the bearing housing, wherein between the outer circumference of the bearing cartridge and the bearing housing there is formed an intermediate space with an oil film, and wherein the bearing housing has a supply bore formed for the supply of oil to the oil film. The bearing cartridge includes a rolling bearing, the outer cartridge ring of which is mounted in a freely rotatable manner in the oil film. A bearing unit for a turbocharger, the bearing cartridge of which includes a rolling bearing, the bearing outer ring of which is mounted in a freely rotatable manner in the oil film. By means of bearing units of such design, it is possible to ensure the secure mounting of a shaft even without a separate twist prevention device.
    Type: Application
    Filed: March 12, 2012
    Publication date: March 27, 2014
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Heiko Schmidt, Kurt Kirsten, Peter Solfrank, Christopher Mitchell
  • Publication number: 20130028732
    Abstract: A roller bearing device in particular in a turbocharger having a housing component having a bearing hole having an inner circumference and a rolling bearing received therein on an outer race having an outer circumference. In order to implement a component such as a rotor assembly of a turbocharger that can rotate on the inner circumference with great smoothness and that is protected against imbalance, a hydraulic damping device made of reservoirs filled with a hydraulic fluid and alternating along the circumference facing the outer periphery and the inner periphery is provided in an annular gap between the outer periphery of the outer race and the inner periphery of the bearing hole by radially pretensioning the outer race relative to the bearing hole.
    Type: Application
    Filed: May 2, 2011
    Publication date: January 31, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Eduard Golovatai-Schmidt, Kurt Kirsten
  • Publication number: 20120079998
    Abstract: A device (11) for the variable adjusting of the control timing of gas exchange valves (9, 10) of an internal combustion engine (1) with a drive element (13), an output element (14), at least one pressure chamber (23) and a volume accumulator (31), wherein the output element (14) is arranged in a rotatable manner to the drive element (13), and the pressure chamber (23) is bordered at least partially by these components (13, 14), wherein a phase position between the output element (14) and the drive element (13) can be variably adjusted by the pressure medium supply to or pressure medium removal from the pressure chamber (23). Pressure medium lines (25a, b, p) are provided by which the pressure medium can be supplied to the pressure chamber (23) or removed therefrom.
    Type: Application
    Filed: June 15, 2010
    Publication date: April 5, 2012
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Andreas Strauss, Kurt Kirsten