Patents by Inventor Zhaojun Dan

Zhaojun Dan 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).

  • Two-stage stiffness type elastomer combined device
    Patent number: 10161468
    Abstract: The present invention provides a two-stage stiffness type elastomer combined device, including at least one small-stiffness elastic element and a large-stiffness elastic element, wherein the small-stiffness elastic element is arranged in an elastomer pre-compression device and is serially arranged with the large-stiffness elastic element under the action of a pre-compression load F1. The device has combined stiffness being hard at first and then becoming soft and is used as an elastic axle box suspension device of a railway vehicle, effectively solving the contradiction that a linear snaking critical operation speed of the vehicle and curve passing performance of the vehicle cannot be compromised.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 25, 2018
    Assignee: CRRC Yangtze Corporation Limited
    Inventors: Zhixiong Yan, Ruijin Jiang, Liangwei Zhang, Hong Cui, Fengwei Liu, Wenliang Liu, Tiejun Fu, Zhaojun Dan
  • Variable stiffness positioning device for railway vehicle bogie axle box
    Patent number: 9919718
    Abstract: The present invention provides a variable stiffness positioning device for a railway vehicle bogie axle box. The variable stiffness positioning device includes a vertical elastomer arranged between the top face of an axle box bearing saddle and the bottom surface of a guide frame of a side fame, and a longitudinal elastomer arranged between the axle box bearing saddle and the front and back side faces of the guide frame of the side fame, the longitudinal elastomer is provided with at least one small-stiffness elastic element and a large-stiffness elastic element, and the small-stiffness elastic element is arranged in an elastomer pre-compression device and is serially arranged with the large-stiffness elastic element under the action of a pre-compression load F1.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 20, 2018
    Assignee: CRRC Yangtze Corporation Limited
    Inventors: Zhixiong Yan, Ruijin Jiang, Liangwei Zhang, Hong Cui, Fengwei Liu, Wenliang Liu, Tiejun Fu, Zhaojun Dan, Pingping Wang
  • Variable Stiffness Positioning Device for Railway Vehicle Bogie Axle Box
    Publication number: 20170129509
    Abstract: The present invention provides a variable stiffness positioning device for a railway vehicle bogie axle box. The variable stiffness positioning device includes a vertical elastomer arranged between the top face of an axle box bearing saddle and the bottom surface of a guide frame of a side fame, and a longitudinal elastomer arranged between the axle box bearing saddle and the front and back side faces of the guide frame of the side fame, the longitudinal elastomer is provided with at least one small-stiffness elastic element and a large-stiffness elastic element, and the small-stiffness elastic element is arranged in an elastomer pre-compression device and is serially arranged with the large-stiffness elastic element under the action of a pre-compression load F1.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 11, 2017
    Inventors: Zhixiong Yan, Ruijin Jiang, Liangwei Zhang, Hong Cui, Fengwei Lui, Wenliang Lui, Tiejun Fu, Zhaojun Dan, Pingping Wang
  • Two-Stage Stiffness Type Elastomer Combined Device
    Publication number: 20160146284
    Abstract: The present invention provides a two-stage stiffness type elastomer combined device, including at least one small-stiffness elastic element and a large-stiffness elastic element, wherein the small-stiffness elastic element is arranged in an elastomer pre-compression device and is serially arranged with the large-stiffness elastic element under the action of a pre-compression load F1. The device has combined stiffness being hard at first and then becoming soft and is used as an elastic axle box suspension device of a railway vehicle, effectively solving the contradiction that a linear snaking critical operation speed of the vehicle and curve passing performance of the vehicle cannot be compromised.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 26, 2016
    Inventors: Zhixiong Yan, Ruijin Jiang, Liangwei Zhang, Hong Cui, Fengwei Liu, Wenliang Liu, Tiejun Fu, Zhaojun Dan