Patents by Inventor Jishen LIN

Jishen LIN 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 CONTROL SYSTEM FOR BOOM FLOATING OF EXCAVATOR AND CONTROL METHOD THEREOF
    Publication number: 20240200305
    Abstract: Disclosed are a hydraulic control system for boom floating of an excavator and a control method thereof. In the hydraulic circuit, a main pump supplies oil to the boom cylinder through a boom reversing valve, and two working ports of the boom reversing valve are connected to a rod cavity and a rodless cavity of the boom cylinder respectively. A rod cavity floating valve and a rodless cavity floating valve are connected to an oil circuit between the rod cavity of the boom cylinder and the boom reversing valve and an oil circuit between the rodless cavity of the boom cylinder and the boom reversing valve respectively. A pilot oil pump and a handle pilot valve are arranged on the pilot oil circuit, an oil inlet of the handle pilot valve is connected to the pilot oil pump.
    Type: Application
    Filed: November 23, 2023
    Publication date: June 20, 2024
    Applicant: Xuzhou XCMG Excavator Machinery Co., Ltd.
    Inventors: Yuzhong DONG, Yunbo XIAO, Yuefeng JIN, Heng MIAO, Jinhui HUANG, Shangjun NAN, Xinkui ZHANG, Jishen LIN, Xiaodong LI