Patents by Inventor Zhengran YU

Zhengran YU 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).

  • Method for preventing accumulation of cylinder oil at scavenging ports of low-speed marine engine
    Patent number: 11746724
    Abstract: Provided is a method for preventing the accumulation of cylinder oil at scavenging ports of low-speed marine engines. An oil passage is provided on a cylinder wall inside a cylinder. The oil passage includes multiple oil storage grooves processed in a circumferential direction of the cylinder wall. The oil passage is formed by obliquely extending from the inner side of the cylinder wall to the outside of the cylinder in a radial direction of the cylinder. The scavenging ports are uniformly distributed in a circumferential direction of the cylinder wall, and each of the oil storage grooves is correspondingly processed at an upper portion of the scavenging port upper edge of the scavenging port. Each of the oil storage grooves has a shape matching the curved surface of the scavenging port upper edge.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: September 5, 2023
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Liyan Feng, Min Pan, Wenjing Qu, Zhen Gong, Zhengran Yu, Hongjie Sun, Zixin Wang, Qiang Liu
  • METHOD FOR PREVENTING ACCUMULATION OF CYLINDER OIL AT SCAVENGING PORTS OF LOW-SPEED MARINE ENGINE
    Publication number: 20220186677
    Abstract: Provided is a method for preventing the accumulation of cylinder oil at scavenging ports of low-speed marine engines. An oil passage is provided on a cylinder wall inside a cylinder. The oil passage includes multiple oil storage grooves processed in a circumferential direction of the cylinder wall. The oil passage is formed by obliquely extending from the inner side of the cylinder wall to the outside of the cylinder in a radial direction of the cylinder. The scavenging ports are uniformly distributed in a circumferential direction of the cylinder wall, and each of the oil storage grooves is correspondingly processed at an upper portion of the scavenging port upper edge of the scavenging port. Each of the oil storage grooves has a shape matching the curved surface of the scavenging port upper edge.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 16, 2022
    Inventors: Liyan FENG, Min PAN, Wenjing QU, Zhen GONG, Zhengran YU, Hongjie SUN, Zixin WANG, Qiang LIU