Patents by Inventor JIANCHANG GAO

JIANCHANG GAO 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).

  • Rotatory energy recycling control device for hydraulic excavator
    Patent number: 10287750
    Abstract: A rotatory energy recycling control device for a hydraulic excavator, comprising: an oil line selector valve (1), a direction selector valve (2), a sequencing valve (3), a one-way valve (4) and an overflow valve (5); two oil inlets of the oil line selector valve (1) are respectively connected to an opening A and an opening B of a rotary motor; an oil outlet of the oil line selector valve (1) is connected to an inlet of the direction selector valve (2); an outlet of the direction selector valve (2) is connected to an net of the sequencing valve (3); a drainage port of the sequencing valve (3) is connected to an oil tank; an outlet of the sequencing valve (3) and an net of the one-way valve (4) communicate with the overflow valve (5): the outlet of the one-way valve (4) is connected to an energy storage and utilization device; and an outlet of the overflow valve (5) is connected to the oil tank.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: May 14, 2019
    Assignee: XUZHOU XUGONG EXCAVATOR MACHINERY CO., LTD
    Inventors: Zhenxing Wang, Zong Li, Jiasheng Qin, Shuhui Fei, Jijiang Shi, Jianchang Gao, Benqiang Sun, Zhipeng Li, Yang Zheng
  • ROTATORY ENERGY RECYCLING CONTROL DEVICE FOR HYDRAULIC EXCAVATOR
    Publication number: 20160289925
    Abstract: A rotatory energy recycling control device for a hydraulic excavator, comprising: an oil line selector valve (1), a direction selector valve (2), a sequencing valve (3), a one-way valve (4) and an overflow valve (5); two oil inlets of the oil line selector valve (1) are respectively connected to an opening A and an opening B of a rotary motor; an oil outlet of the oil line selector valve (1) is connected to an inlet of the direction selector valve (2); an outlet of the direction selector valve (2) is connected to an net of the sequencing valve (3); a drainage port of the sequencing valve (3) is connected to an oil tank; an outlet of the sequencing valve (3) and an net of the one-way valve (4) communicate with the overflow valve (5): the outlet of the one-way valve (4) is connected to an energy storage and utilization device; and an outlet of the overflow valve (5) is connected to the oil tank.
    Type: Application
    Filed: August 13, 2014
    Publication date: October 6, 2016
    Applicant: Xuzhuo Xugong Excavator Machinery Co., Ltd.
    Inventors: ZHENXING WANG, ZONG LI, JIASHENG QIN, SHUHUI FEI, JIJIANG SHI, JIANCHANG GAO, BENQIANG SUN, ZHIPENG LI, YANG ZHENG