Patents by Inventor Karol Zelent

Karol Zelent 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: 12673650
    Abstract: An electropneumatic valve unit (100, 200) for a vehicle brake system has a plurality of valve sections (102; 104; 106; 108; 204; 206) integrated into a single valve housing (101). The plurality of valve sections (102; 104; 106; 108; 204; 206) includes a front axle redundancy section (102) configured to provide a redundant supply or control pressure for controlling brakes associated with a front axle of a vehicle or a tractor, and a trailer control section (104; 204) for providing supply and/or control pressure to a trailer connected to the tractor. The redundant supply or control pressure for controlling brakes associated with the front axle of the vehicle at the front axle redundancy section (102) is derived from an output pressure of the trailer control section (104; 204).
    Type: Grant
    Filed: January 9, 2024
    Date of Patent: July 7, 2026
    Assignee: ZF CV Systems Global GmbH
    Inventor: Karol Zelent
  • Publication number: 20250271092
    Abstract: A silencer fitting element for a silencer of a pneumatic component or a pneumatic system for a vehicle is provided. The silencer fitting element includes including a baffle plate, a gas guiding structure extending from the baffle plate and is configured to guide gas exiting several gas passages provided in the baffle plate, and further includes a thread for mounting the silencer fitting element. The gas guiding structure is configured to guide the gas over a guiding distance from the second baffle plate surface. The guiding distance is different for at least one first gas passage of the several gas passages and at least one second gas passage of the several gas passages.
    Type: Application
    Filed: February 27, 2025
    Publication date: August 28, 2025
    Inventors: Jakub OLSZEWSKI, Karol ZELENT, Maciej SEMENIUK, Marcin KOWAL
  • Publication number: 20250010838
    Abstract: An electropneumatic trailer control module (100; 300; 500) with a housing structure (100a; 300a; 500a) includes a manual brake pressure port (154) receiving a driver's brake demand pressure component, a spring-supported electropneumatic input valve (104) with at least two ports and being capable of switching between two positions (open or closed), an electropneumatic brake pressure port (144; 146) for receiving an electropneumatic brake pressure component from at least one independent pressure source (138; 140), and a relay valve (112) including a control port (110), a supply port (114), an outlet port (116), and a relief port (118). The spring-supported electropneumatic input valve (104) is retained in an open position when there is no electronic activation of the spring-supported electropneumatic input valve (104). A tractor protection module (124; 324; 524) is provided within the housing structure (100a; 300a; 500a) of the electropneumatic trailer control module (100; 300; 500).
    Type: Application
    Filed: July 5, 2023
    Publication date: January 9, 2025
    Inventors: Paulina Kuncewicz, Lukasz Drelich, Marek Smardz, Pawel Swiatek, Karol Zelent, Karl-Heinz Riediger-Janisch
  • Publication number: 20240227764
    Abstract: An electropneumatic valve unit (100, 200) for a vehicle brake system has a plurality of valve sections (102; 104; 106; 108; 204; 206) integrated into a single valve housing (101). The plurality of valve sections (102; 104; 106; 108; 204; 206) includes a front axle redundancy section (102) configured to provide a redundant supply or control pressure for controlling brakes associated with a front axle of a vehicle or a tractor, and a trailer control section (104; 204) for providing supply and/or control pressure to a trailer connected to the tractor. The redundant supply or control pressure for controlling brakes associated with the front axle of the vehicle at the front axle redundancy section (102) is derived from an output pressure of the trailer control section (104; 204).
    Type: Application
    Filed: January 9, 2024
    Publication date: July 11, 2024
    Inventor: Karol Zelent