Patents by Inventor Christian KREIENKAMP

Christian KREIENKAMP 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: 11959388
    Abstract: The invention relates to a turbocharger which contains a bearing device which is arranged between a compressor and a turbine and which is designed to support a shaft. This bearing device has a bearing housing, in which an oil-lubricated bearing for supporting the shaft is arranged. The shaft has a slinger element extending in the circumferential direction for centrifugally dispersing lubricating oil. The bearing housing has an oil drainage channel for discharging the lubricating oil from the bearing housing. The inner region of the bearing housing forms an oil delimitation chamber, which is sealed off by seals arranged between the shaft and the bearing housing. The oil delimitation chamber has a deflection means which is formed in such a way that, during operation of the turbocharger, lubricating oil that is centrifugally dispersed by the slinger element is deflected by the deflection means and is conducted in the opposite direction to the seals.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: April 16, 2024
    Assignee: Turbo Systems Switzerland Ltd
    Inventors: Christian Kreienkamp, Florian Maurer
  • Patent number: 11920489
    Abstract: An exhaust turbocharger including a modular bearing designed for bearing a shaft and arranged between a compressor and a turbine is provided herein. The bearing has a bearing housing having a receptacle chamber, wherein a bearing assembly module can be or is installed in the receptacle chamber and can be non-destructively removed. The receptacle chamber is sized such that either a bearing assembly module having a rolling bearing or a bearing assembly module having a slide bearing can be installed. The receptacle chamber has an interface, designed to contact the bearing flange of a bearing assembly module inserted into the receptacle chamber. The interface is designed to connect an oil gallery passing through the bearing housing to one or more oil galleries passing through a bearing flange of the bearing assembly module.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 5, 2024
    Assignee: Turbo Systems Switzerland Ltd
    Inventors: Florian Maurer, Christian Kreienkamp, Bruno Ammann
  • Publication number: 20220034238
    Abstract: The invention relates to an exhaust turbocharger, which contains a modular bearing, which is designed for bearing a shaft and is arranged between a compressor and a turbine, wherein the bearing has a bearing housing having a receptacle chamber, wherein a bearing assembly module can be or is installed in the receptacle chamber and can be non-destructively removed, the receptacle chamber being sized such that optionally either a bearing assembly module having a rolling bearing or a bearing assembly module having a slide bearing can be installed, the receptacle chamber having an interface, which is designed to contact the bearing flange of a bearing assembly module inserted into the receptacle chamber, the interface being designed to connect an oil gallery passing through the bearing housing to one or more oil galleries passing through a bearing flange of the bearing assembly module.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 3, 2022
    Inventors: Florian MAURER, Christian KREIENKAMP, Bruno AMMANN
  • Publication number: 20210348524
    Abstract: The invention relates to a turbocharger which contains a bearing device which is arranged between a compressor and a turbine and which is designed to support a shaft. This bearing device has a bearing housing, in which an oil-lubricated bearing for supporting the shaft is arranged. The shaft has a slinger element extending in the circumferential direction for centrifugally dispersing lubricating oil. The bearing housing has an oil drainage channel for discharging the lubricating oil from the bearing housing. The inner region of the bearing housing forms an oil delimitation chamber, which is sealed off by seals arranged between the shaft and the bearing housing. The oil delimitation chamber has a deflection means which is formed in such a way that, during operation of the turbocharger, lubricating oil that is centrifugally dispersed by the slinger element is deflected by the deflection means and is conducted in the opposite direction to the seals.
    Type: Application
    Filed: October 17, 2019
    Publication date: November 11, 2021
    Inventors: Christian KREIENKAMP, Florian MAURER
  • Patent number: 10801543
    Abstract: A radial bearing arrangement of an exhaust gas turbocharger for mounting a shaft in a bearing housing is disclosed. The radial bearing arrangement comprises a radial bearing bush arranged between the shaft and the bearing housing, wherein the radial bearing bush features a radially outwardly projecting collar, which interacts in the axial direction with an axial stop on the bearing housing. The geometry of the radially outwardly projecting collar is interrupted by cut-outs, such that a force acting on the collar as a result of an oil feed pressure is minimized, and wherein the radial bearing bush is configured such that a lubricating film can form between an end surface of the radial bearing bush and a counterpiece arranged on the shaft.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: October 13, 2020
    Assignee: ABB Schweiz AG
    Inventors: Bruno Ammann, Christian Kreienkamp, Antje Hertel, Philippe Achtnich
  • Publication number: 20200096039
    Abstract: The invention relates to a radial bearing arrangement (110) of an exhaust gas turbocharger (100) for mounting a shaft (120) in a bearing housing (130). The radial bearing arrangement (110) comprises a radial bearing bush (140) arranged between the shaft (120) and the bearing housing (130), wherein the radial bearing bush (140) features a radially outwardly projecting collar (141), which interacts in the axial direction with an axial stop (131) on the bearing housing (130). The geometry of the radially outwardly projecting collar (141) is interrupted by cut-outs (142), such that a force acting on the collar (141) as a result of an oil feed pressure is minimized, and wherein the radial bearing bush (140) is configured such that a lubricating film can form between an end surface (144) of the radial bearing bush (140) and a counterpiece (160) arranged on the shaft (120).
    Type: Application
    Filed: February 6, 2018
    Publication date: March 26, 2020
    Inventors: Bruno AMMANN, Christian KREIENKAMP, Antje HERTEL, Philippe ACHTNICH
  • Patent number: 10473115
    Abstract: The present disclosure relates to a diffuser for a radial compressor.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 12, 2019
    Assignee: ABB Turbo Systems AG
    Inventors: Christian Kreienkamp, Armin Reichl, Daniel Rusch
  • Publication number: 20170284401
    Abstract: The present disclosure relates to a diffuser for a radial compressor.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Christian KREIENKAMP, Armin REICHL, Daniel RUSCH