Patents by Inventor Changfa Huang

Changfa Huang 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
    Patent number: 11732734
    Abstract: A hydraulic control system includes a first hydraulic cylinder, a second hydraulic cylinder, a fluid supply apparatus, a first control valve bank, a second control valve bank, a third control valve bank, and a first check valve. The first control valve bank is configured to independently control the first hydraulic cylinder; the second control valve bank is configured to independently control the second hydraulic cylinder; and the third control valve bank is configured to synchronously control the first hydraulic cylinder and the second hydraulic cylinder. Synchronous volume control is implemented through series connection of the hydraulic cylinders, and has quite high synchronization precision, which is measured to be up to two percent.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: August 22, 2023
    Assignees: HAWE HYDRAULIK (WUXI) CO., LTD., HAWE HYDRAULIK SE
    Inventor: Changfa Huang
  • HYDRAULIC CONTROL SYSTEM
    Publication number: 20220364578
    Abstract: A hydraulic control system includes a first hydraulic cylinder, a second hydraulic cylinder, a fluid supply apparatus, a first control valve bank, a second control valve bank, a third control valve bank, and a first check valve. The first control valve bank is configured to independently control the first hydraulic cylinder; the second control valve bank is configured to independently control the second hydraulic cylinder; and the third control valve bank is configured to synchronously control the first hydraulic cylinder and the second hydraulic cylinder. Synchronous volume control is implemented through series connection of the hydraulic cylinders, and has quite high synchronization precision, which is measured to be up to two percent.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 17, 2022
    Inventor: Changfa Huang