Patents by Inventor Ran Zhen

Ran Zhen 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: 20240166012
    Abstract: An air spring with adjustable stiffness and a vehicle air suspension system are disclosed, belonging to the technical field of vehicle shock absorption device. The air spring comprises a main body consisting of an upper sealing plate, a lower sealing plate and a main air spring bellow, wherein an air spring bellow for adjustment is arranged in the main body, the air spring bellow for adjustment divides an inner space of the main body into different regions, with a region out of the air spring bellow for adjustment being a first region and a region inside the air spring bellow for adjustment being a second region. The first region and the second region are respectively connected to a high-pressure gas source, and a gas pressure in the first region and in the second region can be individually controlled.
    Type: Application
    Filed: June 27, 2023
    Publication date: May 23, 2024
    Inventors: Amir KHAJEPOUR, Yukun Lu, Ruilong Li, Ran Zhen, Yegang Liu, Guoqiang Li