Patents by Inventor Chunyang Song

Chunyang Song 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 and hydraulic control method
    Publication number: 20130091833
    Abstract: A hydraulic control system and a hydraulic control method are disclosed. The hydraulic control system comprises a first closed pump (P1) and a first engine (M1) connected with each other, a second closed pump (P2) and a second engine (M2) connected with each other, and a hydraulic motor (P3). The first closed pump (P1), the second closed pump (P2) and the hydraulic motor (P3) are connected in parallel. Compared with the prior art, the present hydraulic control system has advantages of wider engine model selection range, higher reliability and better micro-motion performance.
    Type: Application
    Filed: April 11, 2011
    Publication date: April 18, 2013
    Applicants: HUNAN ZOOMLION SPECIAL VEHICLE CO., LTD, ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO. LTD.
    Inventors: Chunxin Zhan, Quan Liu, Yuan Zhang, Chunyang Song, Shaojun Wang, Zhihua Yuan