Patents by Inventor Udo Bartel

Udo Bartel 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).

  • Hydraulic valve for a cam phaser
    Patent number: 11111826
    Abstract: A hydraulic valve for a cam phaser, the hydraulic valve comprising: a bushing including a piston that is movable in a bore along a longitudinal direction; a supply connection for feeding a hydraulic fluid; a first operating connection and a second operation connection; and a first tank drain connection and a second tank drain connection configured to drain the hydraulic fluid, wherein a first check valve is associated with the first operating connection and a second check valve is associated with the second operating connection, and the first operating connection and the second operating connection are connectable through at least one of the first check valve and the second check valve alternatively with each other or with the supply connection or with the first tank drain connection or with the second tank drain connection by moving the piston, wherein the hydraulic valve includes five switching positions,
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 7, 2021
    Assignee: ECO Holding 1 GmbH
    Inventors: Udo Bartel, Falk Mueller, Andre Seidenschwann, Patrick Ruppert
  • HYDRAULIC VALVE FOR A CAM PHASER
    Publication number: 20190257224
    Abstract: A hydraulic valve for a cam phaser, the hydraulic valve comprising: a bushing including a piston that is movable in a bore along a longitudinal direction; a supply connection for feeding a hydraulic fluid; a first operating connection and a second operation connection; and a first tank drain connection and a second tank drain connection configured to drain the hydraulic fluid, wherein a first check valve is associated with the first operating connection and a second check valve is associated with the second operating connection, and the first operating connection and the second operating connection are connectable through at least one of the first check valve and the second check valve alternatively with each other or with the supply connection or with the first tank drain connection or with the second tank drain connection by moving the piston, wherein the hydraulic valve includes five switching positions,
    Type: Application
    Filed: February 14, 2019
    Publication date: August 22, 2019
    Inventors: Udo Bartel, Falk Mueller, Andre Seidenschwann, Patrick Ruppert