Patents by Inventor Steffen Latz

Steffen Latz 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: 11486299
    Abstract: A longitudinally adjustable connecting rod for a piston engine, where the connecting rod includes a first connecting rod end for receiving a piston pin and a second connecting rod end for receiving a crankshaft journal, where the distance between the piston pin and the crankshaft journal is adjustable in the longitudinal direction (A) of the connecting rod by way of a hydraulic control device with a hydraulic control valve. The hydraulic control valve comprises a control cylinder and a control slide which is guided in a slidable manner in the control cylinder and which can be pressurized, and at least one outlet valve which can be actuated by the control slide. The control slide comprises a control piston which is arranged on the end face, with a control pressure surface which can be subjected to the hydraulic control pressure and which defines a control pressure chamber in the control cylinder.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 1, 2022
    Assignees: IWIS MOTORSYSTEME GMBH & CO. KG, AVL LIST GMBH
    Inventors: Malte Heller, Kai Arens, Zoltán Riba, Martin Bodensteiner, Steffen Latz, Bernhard Kometter, Helmut Melde-Tuczai
  • Patent number: 11378004
    Abstract: A length-adjustable connecting rod for an internal combustion engine, where the connecting rod includes at least one switchable outlet valve for opening and closing a pressure chamber, where the outlet valve comprises a valve body and a closing body that is operatively connected to the valve body, and a closing mechanism is present acting upon the closing body for directly moving the closing body and indirectly moving the valve body from a closed to an open position or vice versa. Such an outlet valve is to be configured to be operable. For this purpose, this closing body has a mass which is smaller than the volume defined by the envelope contour of the closing body multiplied by the density of steel (7.85 g/mm3). The use of such a closing body for a respective length-adjustable connecting rod is also provided.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: July 5, 2022
    Assignees: IWIS MOTORSYSTEME GMBH & CO. KG, AVL LIST GMBH
    Inventors: Malte Heller, Kai Arens, Zoltán Riba, Martin Bodensteiner, Steffen Latz, Bernhard Kometter, Robert St. John, Wilhelm Greylinger, Heinrich Fürhapter, Siegfried Lösch
  • Publication number: 20210348550
    Abstract: A longitudinally adjustable connecting rod for a piston engine, where the connecting rod includes a first connecting rod end for receiving a piston pin and a second connecting rod end for receiving a crankshaft journal, where the distance between the piston pin and the crankshaft journal is adjustable in the longitudinal direction (A) of the connecting rod by way of a hydraulic control device with a hydraulic control valve. The hydraulic control valve comprises a control cylinder and a control slide which is guided in a slidable manner in the control cylinder and which can be pressurized, and at least one outlet valve which can be actuated by the control slide. The control slide comprises a control piston which is arranged on the end face, with a control pressure surface which can be subjected to the hydraulic control pressure and which defines a control pressure chamber in the control cylinder.
    Type: Application
    Filed: October 8, 2019
    Publication date: November 11, 2021
    Inventors: Malte HELLER, Kai ARENS, Zoltán RIBA, Martin BODENSTEINER, Steffen LATZ, Bernhard KOMETTER, Helmut MELDE-TUCZAI
  • Publication number: 20210348551
    Abstract: A length-adjustable connecting rod for an internal combustion engine, where the connecting rod includes at least one switchable outlet valve for opening and closing a pressure chamber, where the outlet valve comprises a valve body and a closing body that is operatively connected to the valve body, and a closing mechanism is present acting upon the closing body for directly moving the closing body and indirectly moving the valve body from a closed to an open position or vice versa. Such an outlet valve is to be configured to be operable. For this purpose, this closing body has a mass which is smaller than the volume defined by the envelope contour of the closing body multiplied by the density of steel (7.85 g/mm3). The use of such a closing body for a respective length-adjustable connecting rod is also provided.
    Type: Application
    Filed: October 8, 2019
    Publication date: November 11, 2021
    Inventors: Malte HELLER, Kai ARENS, Zoltán RIBA, Martin BODENSTEINER, Steffen LATZ, Bernhard KOMETTER, Robert ST. JOHN, Wilhelm GREYLINGER, Heinrich FÜRHAPTER, Siegfried LÖSCH
  • Patent number: 10563574
    Abstract: A length-adjustable connecting rod for an internal combustion engine, comprises a first connecting rod member, a second connecting rod member and at least one cylinder-piston assembly for adjusting the first connecting rod member relative to the second connecting rod member. The cylinder-piston assembly can be actuated by way of a hydraulic adjustment mechanism, where the hydraulic adjustment mechanism comprises at least one oil filter in order to filter the engine oil of the internal combustion engine flowing into the cylinder-piston assembly. The invention further relates to an internal combustion engine with such a length-adjustable connecting rod and the use of such a cylinder-piston assembly for a length-adjustable connecting rod of an internal combustion engine.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 18, 2020
    Assignees: IWIS MOTORSYSTEME GMBH & CO. KG, AVL LIST GMBH
    Inventors: Zoltán Riba, Kai Arens, Martin Bodensteiner, Steffen Latz, Malte Heller
  • Publication number: 20180119611
    Abstract: A length-adjustable connecting rod for an internal combustion engine, comprises a first connecting rod member, a second connecting rod member and at least one cylinder-piston assembly for adjusting the first connecting rod member relative to the second connecting rod member. The cylinder-piston assembly can be actuated by way of a hydraulic adjustment mechanism, where the hydraulic adjustment mechanism comprises at least one oil filter in order to filter the engine oil of the internal combustion engine flowing into the cylinder-piston assembly. The invention further relates to an internal combustion engine with such a length-adjustable connecting rod and the use of such a cylinder-piston assembly for a length-adjustable connecting rod of an internal combustion engine.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 3, 2018
    Inventors: Zoltán RIBA, Kai ARENS, Martin BODENSTEINER, Steffen LATZ, Malte HELLER
  • Patent number: 8662038
    Abstract: The present invention relates to a traction drive with a compensating device for vibration reduction of a driven shaft, for example a camshaft, a water pump shaft or an injection pump shaft of an internal combustion engine, having a drive wheel which is coupled to the shaft, having a drive means, and having at least one compensating mass which is relatively movable in the traction drive and having at least one actuating mechanism for moving the compensating mass. Here, the compensating mass is movable in or counter to the rotational direction of the shaft, and the actuating mechanism is formed as a tangentially acting actuator for moving the compensating mass.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: March 4, 2014
    Assignee: iwis motorsysteme GmbH & Co. KG
    Inventors: Steffen Latz, Stefan Belmer
  • Publication number: 20090293823
    Abstract: The present invention relates to a traction drive with a compensating device for vibration reduction of a driven shaft, for example a camshaft, a water pump shaft or an injection pump shaft of an internal combustion engine, having a drive wheel which is coupled to the shaft, having a drive means, and having at least one compensating mass which is relatively movable in the traction drive and having at least one actuating mechanism for moving the compensating mass. Here, the compensating mass is movable in or counter to the rotational direction of the shaft, and the actuating mechanism is formed as a tangentially acting actuator for moving the compensating mass.
    Type: Application
    Filed: July 27, 2007
    Publication date: December 3, 2009
    Applicant: iwis motorsysteme GmbH & Co. KG
    Inventors: Steffen Latz, Stefan Belmer