Patents by Inventor Yongzhen Cheng

Yongzhen Cheng 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).

  • Tidal current generating unit
    Patent number: 11028820
    Abstract: A tidal current generating unit, including a turbine, a hub, a generator, a bearing set and a fixed flange. The turbine is connected to the rotor of the generator through the hub, and the rotor is rotatably mounted on the outer circumference of the stator of the generator via the bearing set, and the turbine drives the rotating component to rotate to generate electricity. A density of a blade is much smaller than a density of the seawater, such that the blade has a sufficient buoyancy that offsets the gravity of the rotating component in seawater, and the load of the bearing sets is reduced. The blade is a backswept blade and the hydrodynamic central axis of the blade is inclined from a flange central axis of the blade at a first angle, and the blade is able to automatically change the pitch without relying on an external force.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 8, 2021
    Assignee: HangZhou JiangHe Hydro-Electrical Science & Technolo
    Inventors: Changlu Liu, Liwei Chen, Zhengming Zhou, Jianfeng Yu, Yinhua Chen, Shanguo Peng, Junsheng Wei, Xue Sun, Chunming Zhao, Yongzhen Cheng, Fang Wang
  • TIDAL CURRENT GENERATING UNIT
    Publication number: 20210108607
    Abstract: A tidal current generating unit, including a turbine, a hub, a generator, a bearing set and a fixed flange. The turbine is connected to the rotor of the generator through the hub, and the rotor is rotatably mounted on the outer circumference of the stator of the generator via the bearing set, and the turbine drives the rotating component to rotate to generate electricity. A density of a blade is much smaller than a density of the seawater, such that the blade has a sufficient buoyancy that offsets the gravity of the rotating component in seawater, and the load of the bearing sets is reduced. The blade is a backswept blade and the hydrodynamic central axis of the blade is inclined from a flange central axis of the blade at a first angle, and the blade is able to automatically change the pitch without relying on an external force.
    Type: Application
    Filed: November 19, 2019
    Publication date: April 15, 2021
    Inventors: Changlu LIU, Liwei Chen, Zhengming Zhou, Jianfeng Yu, Yinhua Chen, Shanguo Peng, Junsheng Wei, Xue Sun, Chunming Zhao, Yongzhen Cheng, Fang Wang