Patents by Inventor Martin Sievers

Martin Sievers 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: 12365222
    Abstract: A heat exchanger of an electrically driven motor vehicle, which includes a tube/rib block having a multiplicity of tubes and having a multiplicity of ribs. The tubes being arranged essentially in parallel to each other and spaced a distance apart, and the ribs each being arranged between two adjacent tubes. The ribs touching the two adjacent tubes, at least one manifold being arranged on one of the sides of the tube/rib block for the purpose of supplying fluid to tubes of the tube/rib block and for removing fluid from tubes of the tube/rib block. A cover device is arranged downstream and/or upstream from the tube/rib block for controlling the air flow through the tube/rib block temporarily or in certain regions for the defined removal of water from the tube/rib block. A method for operating a heat exchanger is also provided.
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: July 22, 2025
    Assignee: Mahle International GmbH
    Inventors: Martin Sievers, Uwe Foerster
  • Patent number: 12196506
    Abstract: A heat exchanger including a tube/rib block made up of tubes and ribs, the tubes forming fluid channels for conducting a first fluid, in particular a refrigerant, and the ribs arranged between the tubes forming a second fluid channel for conducting a second fluid, such as, in particular, air, which flows around the tubes, a collector being arranged at at least one end of the tube/rib block, which communicates with the fluid channels of the tubes, the at least one collector being provided with a plate-type design and including at least one base plate and a cover plate, which are stacked and soldered in a sealed manner, a spacer for spacing the base plate at a distance from the cover plate and for distributing the first fluid in the collector being provided.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: January 14, 2025
    Assignee: Mahle International GmbH
    Inventors: Benjamin Nothdurft, Uwe Foerster, Martin Sievers, Gottfried Duerr, Patrick Walz, Nikolaj Bittner
  • Patent number: 12123658
    Abstract: A heat exchanger for the thermal coupling of two fluids may include an inflow pipe defining a pipe longitudinal centre axis. A fluid inlet may be arranged on the inflow pipe. A plurality of flat tubes leading into the inflow pipe may be arranged on the inflow pipe adjacent to the fluid inlet. The first fluid stream may be flowable along a first fluid path extending from the fluid inlet through the inflow pipe and the plurality of flat tubes. The flat tubes may extend through a second fluid path for a second fluid stream of fluid and may be flowed about by the second fluid stream during operation. The heat exchanger may further include passage screen aperture interacting with the heat exchanger fluid and through which the first fluid stream is flowable. The passage screen aperture may be fluidically connected in series with the flat tubes.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: October 22, 2024
    Assignee: Mahle International GmbH
    Inventors: Dennis Aul, Uwe Foerster, Martin Sievers, Dawid Trawinski
  • Publication number: 20230280111
    Abstract: A collecting tank for a heat exchanger may include at least one manifold for receiving a plurality of heat exchanger tubes of the heat exchanger. The at least one manifold may have a hollow space through which a fluid is flowable. The at least one manifold may include a bottom and a plurality of tank receptacles for receiving the plurality of heat exchanger tubes. The plurality of tank receptacles may be disposed in the bottom spaced apart from one another in a longitudinal direction and may extend in a transverse direction, which extends transverse to the longitudinal direction. In a height direction extending transverse to the longitudinal direction and transverse to the transverse direction, directed away from the hollow space, the bottom may have at least one curvature directed to an outside.
    Type: Application
    Filed: February 28, 2023
    Publication date: September 7, 2023
    Inventors: Gottfried Duerr, Uwe Foerster, Stephanie Hahnenkamm, Hagen Schirnig, Martin Sievers
  • Publication number: 20230124890
    Abstract: A heat exchanger for the thermal coupling of two fluids may include an inflow pipe defining a pipe longitudinal centre axis. A fluid inlet may be arranged on the inflow pipe. A plurality of flat tubes leading into the inflow pipe may be arranged on the inflow pipe adjacent to the fluid inlet. The first fluid stream may be flowable along a first fluid path extending from the fluid inlet through the inflow pipe and the plurality of flat tubes. The flat tubes may extend through a second fluid path for a second fluid stream of fluid and may be flowed about by the second fluid stream during operation. The heat exchanger may further include passage screen aperture interacting with the heat exchanger fluid and through which the first fluid stream is flowable. The passage screen aperture may be fluidically connected in series with the flat tubes.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 20, 2023
    Inventors: Dennis Aul, Uwe Foerster, Martin Sievers, Dawid Trawinski
  • Publication number: 20220381523
    Abstract: A heat exchanger may include a collector and a connecting pipe. The collector may include at least one insertion opening. The connecting pipe may be inserted in the at least one insertion opening. The connecting pipe may include at least one bulge projecting radially to the outside. The at least one bulge may form a stop of the connecting pipe in an insertion direction in the at least one insertion opening. The at least one bulge may indicate a predefined angle-of-rotation position of the connecting pipe in the at least one insertion opening.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 1, 2022
    Inventors: Gottfried Duerr, Uwe Foerster, Hagen Schirnig, Martin Sievers
  • Patent number: 11117440
    Abstract: A heat pump heater for an air conditioning system of a motor vehicle may include a first tube row and a second tube row each including a plurality of flat tubes arranged spaced apart from one another. The first and second tube row may be arranged in parallel to form a tube block. At least some flat tubes of the first tube row may lead into an inlet pipe and at least some flat tubes of the second tube row may lead into an outlet pipe. A refrigerant may be flowable from the inlet pipe via the first tube row and to the outlet pipe via the second tube row. The inlet pipe and the outlet pipe may be fluidically connected to one another via at least one bypass duct such that a liquid phase of the refrigerant is flowable out of the inlet pipe into the outlet pipe.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 14, 2021
    Inventors: Uwe Foerster, Martin Sievers
  • Publication number: 20200070620
    Abstract: A heat pump heater for an air conditioning system of a motor vehicle may include a first tube row and a second tube row each including a plurality of flat tubes arranged spaced apart from one another. The first and second tube row may be arranged in parallel to form a tube block. At least some flat tubes of the first tube row may lead into an inlet pipe and at least some flat tubes of the second tube row may lead into an outlet pipe. A refrigerant may be flowable from the inlet pipe via the first tube row and to the outlet pipe via the second tube row. The inlet pipe and the outlet pipe may be fluidically connected to one another via at least one bypass duct such that a liquid phase of the refrigerant is flowable out of the inlet pipe into the outlet pipe.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Inventors: Uwe Foerster, Martin Sievers
  • Patent number: 8017359
    Abstract: The invention concerns new analytical methods for detecting and identifying qualitatively and quantitatively germ contaminations, e.g. bacterial and yeast contaminations usings specific DNA sequences, indicating living and dead germs within 12 hours time or less. The DNA is amplified and as quantified. The invention also embraces kits.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: September 13, 2011
    Assignee: ETS Laboratories
    Inventors: Peter D. Brodmann, Marc Fehlmann, Juerg Gafner, Naomi Porret, Sergio Schmid, Ralf Seyfarth, Martin Sievers, Anne Terrettaz, Christina Uermoesi
  • Publication number: 20080268430
    Abstract: The invention concerns new analytical methods for detecting and identifying qualitatively and quantitatively germ contaminations, e.g. bacterial and yeast contaminations usings specific DNA sequences, indicating living and dead germs within 12 hours time or less. The DNA is amplified and as quantified. The invention also embraces kits.
    Type: Application
    Filed: June 6, 2005
    Publication date: October 30, 2008
    Applicant: ETS Laboratories
    Inventors: Peter D. Brodmann, Marc Fehlmann, Juerg Gafner, Naomi Porret, Sergio Schmid, Ralf Seyfarth, Martin Sievers, Anne Terrettaz, Christina Uermoesi