Patents by Inventor Sascha Karstadt

Sascha Karstadt 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: 20240337199
    Abstract: A cartridge for use in a pulse energy enhanced turbine of a turbocharger. At least first and second fixed separating blades (12) are provided between a nozzle ring (6) and a disk (29), the separating blades (12) maintaining separation of exhaust gas flows through a guide grid between a divided volute and a turbine wheel (11). Exhaust pulsation energy from different cylinders or cylinder groups of an engine or engine bank are kept separated up to the turbine wheel, so that the turbine wheel reacts to individual pulses of exhaust gas flow from engine exhaust ports.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Sascha Karstadt, Sascha Weiske, Cathrin Bergner, Marc Gugau, Ahmet Coksen, Uwe Tomm, Frank Kruse
  • Patent number: 12012861
    Abstract: A cartridge for use in a pulse energy enhanced turbine of a turbocharger. At least first and second fixed separating blades (12) are provided between a nozzle ring (6) and a disk (29), the separating blades (12) maintaining separation of exhaust gas flows through a guide grid between a divided volute and a turbine wheel (11). Exhaust pulsation energy from different cylinders or cylinder groups of an engine or engine bank are kept separated up to the turbine wheel, so that the turbine wheel reacts to individual pulses of exhaust gas flow from engine exhaust ports.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 18, 2024
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Sascha Weiske, Cathrin Bergner, Marc Gugau, Ahmet Coksen, Uwe Tomm, Frank Kruse
  • Patent number: 11959385
    Abstract: The present invention concerns an adjustment mechanism (200) for variable adjustment of an inlet cross-section (321) of a compressor inlet (322). The adjustment mechanism comprises a plurality of rotatably mounted baffle elements (210) which are arranged in a circumferential direction (26) and are adjustable between a first position and a second position. At least one baffle element (210) of the plurality of baffle elements (210) comprises an eddy-reducing feature (220).
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: April 16, 2024
    Assignee: BorgWarner Inc.
    Inventors: Jason Walkingshaw, Sascha Karstadt, Ahmet Coksen
  • Patent number: 11591926
    Abstract: A turbocharger includes a compressor assembly having a compressor housing defining a ported shroud and a switchable trim compressor. The switchable trim compressor is moveable from an open trim position to a closed trim position, with the closed trim position minimizing a diameter of the air inlet opening and blocking air flow through the ported shroud. The positioning of the switchable trim compressor in the open position increases the diameter of the air inlet opening and allows a recirculation air flow through the ported shroud from an interior of the compressor assembly to a position upstream of the switchable trim compressor at a position near the air inlet opening.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: February 28, 2023
    Assignee: BorgWarner Inc.
    Inventors: Jonas Stankevicius, Sascha Karstadt, Kendall Samuel
  • Patent number: 11525451
    Abstract: The present invention relates to an adjustment mechanism (100) for variably adjusting the cross-section of a compressor inlet (22) and further relates to a corresponding compressor (20) including such an adjustment mechanism (100). The adjustment mechanism (100) comprises a plurality of rotatable orifice elements (110) and an actuation ring (120). The actuation ring (120) is mechanically coupled to the plurality of orifice elements 110 such that rotation of the actuation ring 120 causes movement of the orifice elements 110. The movement of the orifice elements (110) thereby adjusts the cross-section of a compressor inlet (22). The adjustment mechanism (100) further comprises a plurality of support members (140) which are arranged axially between the plurality of orifice elements (110) and the actuation ring (120). Additionally, the adjustment mechanism (100) comprises a spring (130), more specific a ring-shaped wave spring.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 13, 2022
    Assignee: BorgWarner Inc.
    Inventor: Sascha Karstadt
  • Patent number: 11415149
    Abstract: This disclosure relates to an arrangement 10 for variably adjusting the cross-section of a compressor inlet. Furthermore, the disclosure relates to a charging device having such an arrangement 10. The arrangement 10 comprises a compressor housing 100 with a main body 140 and an inlet cover 120. The inlet cover 120 defines a compressor inlet 110. The arrangement 10 further comprises an adjustment mechanism 200 which is arranged in the compressor housing 100. The adjustment mechanism 200 comprises an actuation ring 210 and a plurality of orifice elements 220. Each orifice element 220 is coupled to the actuation ring 210 via a respective coupling element 230 and is rotatably supported in the compressor housing 100 via a respective shaft 240. Furthermore, the arrangement 10 comprises at least one wear reducing feature providing a wear reduced operation of the adjustment mechanism 200.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: August 16, 2022
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Waldemar Henke, Sebastian Dauscher
  • Patent number: 11401951
    Abstract: A compressor for a charging device, and a charging device having a corresponding compressor. The compressor comprises a compressor housing having a compressor inlet and a compressor outlet, and a compressor wheel and an adjustment mechanism. The compressor wheel is arranged in the compressor housing and can be rotated along a compressor axis. The adjustment mechanism is arranged in front of the compressor wheel axially in the current direction and can be adjusted between a first position and a second position in order to change an inlet cross-section of the compressor inlet. As a result of the adjustability of the adjustment mechanism, the inlet cross-section can be changed between a maximum inlet cross-section and a reduced inlet cross-section. Here, the adjustment mechanism forms the reduced inlet cross-section in such a way that the reduced inlet cross-section is arranged eccentrically in relation to the compressor axis.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: August 2, 2022
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Jason Walkingshaw, Ahmet Coksen
  • Patent number: 11391200
    Abstract: This invention relates to a compressor 100 for a supercharger 10. The compressor 100 comprises a compressor housing 110 with a compressor inlet 112 and a compressor outlet 114. The compressor 100 furthermore comprises an adjustment mechanism 200 and an actuator device 300. The adjustment mechanism 200 comprises an adjustment ring 210 and a plurality of shutter elements 220 for changing an inlet cross section 112a of the compressor inlet 112. The actuator device 300 comprises a drive unit 310 and a coupling unit 320. The actuator device 300 is thus coupled, via the coupling unit 320, to the adjustment mechanism 200 in order to move the adjustment mechanism 200 between a first position and a second position.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 19, 2022
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Waldemar Henke
  • Publication number: 20220136403
    Abstract: The present invention concerns an adjustment mechanism (200) for variable adjustment of an inlet cross-section (321) of a compressor inlet (322). The adjustment mechanism comprises a plurality of rotatably mounted baffle elements (210) which are arranged in a circumferential direction (26) and are adjustable between a first position and a second position. At least one baffle element (210) of the plurality of baffle elements (210) comprises an eddy-reducing feature (220).
    Type: Application
    Filed: October 7, 2021
    Publication date: May 5, 2022
    Inventors: Jason Walkingshaw, Sascha Karstadt, Ahmet Coksen
  • Publication number: 20220090514
    Abstract: A turbocharger includes a compressor assembly having a compressor housing defining a ported shroud and a switchable trim compressor. The switchable trim compressor is moveable from an open trim position to a closed trim position, with the closed trim position minimizing a diameter of the air inlet opening and blocking air flow through the ported shroud. The positioning of the switchable trim compressor in the open position increases the diameter of the air inlet opening and allows a recirculation air flow through the ported shroud from an interior of the compressor assembly to a position upstream of the switchable trim compressor at a position near the air inlet opening.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 24, 2022
    Inventors: Jonas STANKEVICIUS, Sascha KARSTADT, Kendall SAMUEL
  • Patent number: 11118500
    Abstract: The invention relates to a turbine comprising a turbine housing defining a volute having a substantially annular outlet opening, a turbine wheel, and an adjusting ring, rotatable about the turbine axis, which is arranged in the turbine housing radially between the volute and the turbine wheel, wherein the adjusting ring comprises a flow channel between a radially outer first peripheral opening and a radially inner second peripheral opening, and wherein the outlet opening is fluidically coupled to the turbine wheel by the flow channel. The outlet opening and the first peripheral opening have a path, variable in the axial direction, so that during a rotation of the adjusting ring, the outlet opening and the first peripheral opening are adjusted relative to each other in such a way that an overflow cross section between the outlet opening and the first peripheral opening is variably changeable.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 14, 2021
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Mathias Kosch, Gerd Spinner, Stefan Decker, Ahmet Coksen, Jamison Taylor, Laszlo Medvegy, Stefan Muenz
  • Patent number: 11105218
    Abstract: A compressor with a compressor housing in which a compressor wheel is arranged. The compressor additionally includes a cartridge which is arranged in the compressor housing in the area of a compressor inlet. The cartridge is designed to variably change the cross section of the compressor inlet.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 31, 2021
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Waldemar Henke, Juergen Werner, Stefan Muenz, Sascha Weiske, Gerd Spinner, Uwe Tomm, Patric Hoecker
  • Publication number: 20210239134
    Abstract: A compressor for a charging device, and a charging device having a corresponding compressor. The compressor comprises a compressor housing having a compressor inlet and a compressor outlet, and a compressor wheel and an adjustment mechanism. The compressor wheel is arranged in the compressor housing and can be rotated along a compressor axis. The adjustment mechanism is arranged in front of the compressor wheel axially in the current direction and can be adjusted between a first position and a second position in order to change an inlet cross-section of the compressor inlet. As a result of the adjustability of the adjustment mechanism, the inlet cross-section can be changed between a maximum inlet cross-section and a reduced inlet cross-section. Here, the adjustment mechanism forms the reduced inlet cross-section in such a way that the reduced inlet cross-section is arranged eccentrically in relation to the compressor axis.
    Type: Application
    Filed: January 22, 2021
    Publication date: August 5, 2021
    Inventors: Sascha KARSTADT, Jason WALKINGSHAW, Ahmet COKSEN
  • Patent number: 11078832
    Abstract: The present invention relates to an actuation device for a compressor inlet adjustment mechanism. The actuation device comprises a housing part and a lever assembly. The lever assembly comprises a bearing section, an input section and an output section. The output section is configured to be coupled to an adjustment ring of the adjustment mechanism on a first side of the housing part. The input section can be coupled to an actuator rod on a second side of the housing part. The lever assembly is rotatably mounted in the housing part via the bearing section on the compressor inlet side here.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: August 3, 2021
    Assignee: BorgWarner Inc.
    Inventors: Aleksandar Vuletic, Jason Robert Walkingshaw, Sascha Karstadt
  • Publication number: 20210190091
    Abstract: This disclosure relates to an arrangement 10 for variably adjusting the cross-section of a compressor inlet. Furthermore, the disclosure relates to a charging device having such an arrangement 10. The arrangement 10 comprises a compressor housing 100 with a main body 140 and an inlet cover 120. The inlet cover 120 defines a compressor inlet 110. The arrangement 10 further comprises an adjustment mechanism 200 which is arranged in the compressor housing 100. The adjustment mechanism 200 comprises an actuation ring 210 and a plurality of orifice elements 220. Each orifice element 220 is coupled to the actuation ring 210 via a respective coupling element 230 and is rotatably supported in the compressor housing 100 via a respective shaft 240. Furthermore, the arrangement 10 comprises at least one wear reducing feature providing a wear reduced operation of the adjustment mechanism 200.
    Type: Application
    Filed: May 1, 2019
    Publication date: June 24, 2021
    Inventors: Sascha Karstadt, Waldemar Henke, Sebastian Dauscher
  • Publication number: 20210115942
    Abstract: The present invention relates to an adjustment mechanism (100) for variably adjusting the cross-section of a compressor inlet (22) and further relates to a corresponding compressor (20) including such an adjustment mechanism (100). The adjustment mechanism (100) comprises a plurality of rotatable orifice elements (110) and an actuation ring (120). The actuation ring (120) is mechanically coupled to the plurality of orifice elements 110 such that rotation of the actuation ring 120 causes movement of the orifice elements 110. The movement of the orifice elements (110) thereby adjusts the cross-section of a compressor inlet (22). The adjustment mechanism (100) further comprises a plurality of support members (140) which are arranged axially between the plurality of orifice elements (110) and the actuation ring (120). Additionally, the adjustment mechanism (100) comprises a spring (130), more specific a ring-shaped wave spring.
    Type: Application
    Filed: February 22, 2019
    Publication date: April 22, 2021
    Inventor: Sascha KARSTADT
  • Patent number: 10941699
    Abstract: A multi-flow exhaust gas turbocharger (101) comprising a turbine (105), a turbine wheel, a first flow (1) and a second flow (2), a bypass line (6) for bypassing the turbine wheel, a bypass valve unit (107) for adjusting the size of a bypass exhaust gas flow through the bypass line (6), and comprising a flow connection unit (108) for adjusting an extent of the connection of exhaust gas flows into the flows (1, 2), characterized in that the bypass valve unit (107) and the flow connection unit (108) can be actuated in a mechanically coupled way by means of a coupling unit (109).
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 9, 2021
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Sascha Weiske, Aleksandar Vuletic
  • Publication number: 20200347850
    Abstract: The present invention relates to a flow-modifying device for a compressor of a charging apparatus. The flow-modifying device comprises a cylindrical housing portion, which defines an inner lateral surface and in the axial direction comprises a downstream end region and an upstream end region. The flow-modifying device furthermore comprises a plurality of pockets, which are arranged on the inner lateral surface, spaced-apart from one another in the peripheral direction. Each pocket is defined here by a longitudinal projection line and a depth projection line. In an orientation plane, which is formed by the longitudinal projection line and the depth projection line, there is arranged a downstream angle of entry ? of the pocket relative to the inner lateral surface and an upstream angle of entry ? of the pocket relative to the inner lateral surface. The downstream angle of entry ? defines a downstream opening region of the pocket and the upstream angle of entry ? defines an upstream opening region of the pocket.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventors: Tom HEUER, Sascha KARSTADT, Thomas LISCHER, Johannes BUEHLER, Sebastian LEICHTFUSS
  • Publication number: 20200309141
    Abstract: An adjustment mechanism variably adjusts the cross-section of a compressor inlet. The adjustment mechanism comprises a plurality of rotatable orifice elements and a transmission ring. Each orifice element has a plate body, a coupling element and a bearing pin. The transmission ring is mechanically coupled to the orifice elements via the coupling elements. One of the orifice elements is configured as a drive orifice element. The bearing pin of the drive orifice element is configured as an elongated bearing pin. The elongated bearing pin is configured longer than the bearing pins of the other orifice elements. Furthermore, the elongated bearing pin is adapted to be coupled to an actuation system such that when the drive orifice element is moved by the actuation system, movement is transmitted from the drive orifice element via the transmission ring to the other orifice elements.
    Type: Application
    Filed: March 10, 2020
    Publication date: October 1, 2020
    Inventors: Aleksandar Vuletic, Jason Walkingshaw, Sascha Karstadt, Oliver Weber, Alexander Sperle
  • Publication number: 20200291852
    Abstract: This invention relates to a compressor 100 for a supercharger 10. The compressor 100 comprises a compressor housing 110 with a compressor inlet 112 and a compressor outlet 114. The compressor 100 furthermore comprises an adjustment mechanism 200 and an actuator device 300. The adjustment mechanism 200 comprises an adjustment ring 210 and a plurality of shutter elements 220 for changing an inlet cross section 112a of the compressor inlet 112. The actuator device 300 comprises a drive unit 310 and a coupling unit 320. The actuator device 300 is thus coupled, via the coupling unit 320, to the adjustment mechanism 200 in order to move the adjustment mechanism 200 between a first position and a second position.
    Type: Application
    Filed: March 9, 2020
    Publication date: September 17, 2020
    Inventors: Sascha KARSTADT, Waldemar HENKE