Patents by Inventor Dawei RUAN

Dawei RUAN 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).

  • Publication number: 20230166777
    Abstract: The invention relates to a bogie for a rail vehicle characterized by a high lightweight construction potential. The bogie (1, 1*, 1**) according to the invention has, for primary suspension, a torsion spring system (12) in the inner volume of which a roll stabilizer having a torsion rod (11) is arranged in a torsionally movable manner. The roll stabilizer can be articulated to the car body of the rail vehicle or to the torsion spring system (12). The bogie (1, 1*, 1**) according to the invention advantageously has a particularly large installation space for built-in components.
    Type: Application
    Filed: March 29, 2021
    Publication date: June 1, 2023
    Applicants: CRRC QINGDAO SIFANG CO., LTD., CG RAIL - CHINESISCH-DEUTSCHES FORSCHUNGS- UND ENTWICKLUNGSZENTRUM FÜR BAHN
    Inventors: Andreas ULBRICHT, Werner HUFENBACH, Florian ZEIDLER, Sansan DING, Zhenxian ZHANG, Yulong GAO, Xiongfei ZHANG, Dawei RUAN, Chao SU, Kejian LIU, Xin CAO
  • Patent number: 11505219
    Abstract: A device for connecting a cross member for receiving pivot pins on two lower longitudinal members of a car body for a rail vehicle. The cross member has a transversal part that connects the two longitudinal members to each other in the region of the connection, and a longitudinal part that extends to the closest car front. The lower longitudinal members extend over the complete length of the car body and consist of multi-chamber hollow profiles made of a fibre composite material. The number of chambers of the multi-chamber hollow profile of each longitudinal member is reduced in the region of the connection such that the wall material of at least one chamber was removed in such a way that the webs to the adjacent chambers are exposed. At these places, load-introducing elements engage, to which load-introducing elements the cross member is attached.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: November 22, 2022
    Assignees: CRRC QINGDAO SIFANG CO., LTD., CG RAIL—CHINESISCH-DEUTSCHES FORSCHUNGS- UND ENTWICKLUNGSZENTRUM FÜR BAHN- UND VERKEHRSTECHNIK DREDEN GMBH
    Inventors: Jianying Liang, Chongcheng Zhong, Jiajie He, Junhai Liang, Jian Du, Dawei Ruan, Werner Hufenbach, Andreas Ulbricht
  • Patent number: 11318967
    Abstract: The application relates to a crash system for the head module of a rail vehicle, said head module being detachably fixed to the front face of a subsequent railcar unit without additional underframe. The crash system has a crash conduction element that carries a crash box at its front end and the back end of which is fixed to the underframe support of the subsequent railcar unit. In the event of a crash, crash forces are thus absorbed by the underframe of the subsequent railcar unit.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 3, 2022
    Assignees: CRRC QINGDAO SIFANG CO., LTD., CG RAIL—CHINESISCH-DEUTSCHES FORSCHUNGS—UND ENTWICKLUNGSZENTRUM FÜR BAHN—UND VERKEHRSTECHNIK DRESDEN GMBH
    Inventors: Sansan Ding, Honglei Tian, Peng Lin, Junshuang Cai, Qing Xu, Letian Teng, Dawei Ruan, Chongcheng Zhong, Werner Hufenbach, Andreas Ulbricht
  • Publication number: 20200039539
    Abstract: A device for connecting a cross member for receiving pivot pins on two lower longitudinal members of a car body for a rail vehicle. The cross member has a transversal part that connects the two longitudinal members to each other in the region of the connection, and a longitudinal part that extends to the closest car front. The lower longitudinal members extend over the complete length of the car body and consist of multi-chamber hollow profiles made of a fibre composite material. The number of chambers of the multi-chamber hollow profile of each longitudinal member is reduced in the region of the connection such that the wall material of at least one chamber was removed in such a way that the webs to the adjacent chambers are exposed. At these places, load-introducing elements engage, to which load-introducing elements the cross member is attached.
    Type: Application
    Filed: February 7, 2018
    Publication date: February 6, 2020
    Applicants: CRRC QINGDAO SIFANG CO., LTD., CG RAIL - CHINESISCH-DEUTSCHES FORSCHUNGS-UND ENTWICKLUNGSZENTRUM FüR BAHN- UND VERKEHRSTECHNIK DRES
    Inventors: Jianying LIANG, Chongcheng ZHONG, Jiajie HE, Junhai LIANG, Jian DU, Dawei RUAN, Werner HUFENBACH, Andreas ULBRICHT
  • Publication number: 20200001903
    Abstract: The application relates to a crash system for the head module of a rail vehicle, said head module being detachably fixed to the front face of a subsequent railcar unit without additional underframe. The crash system has a crash conduction element that carries a crash box at its front end and the back end of which is fixed to the underframe support of the subsequent railcar unit. In the event of a crash, crash forces are thus absorbed by the underframe of the subsequent railcar unit.
    Type: Application
    Filed: February 6, 2018
    Publication date: January 2, 2020
    Applicants: CRRC QINGDAO SIFANG CO., LTD., CG RAIL - CHINESISCH-DEUTSCHES FORSCHUNGS-UND ENTWICKLUNGSZENTRUM FOR BAHN- UND VERKEHRSTECHNIK
    Inventors: Sansan DING, Honglei TIAN, Peng LIN, Junshuang CAI, Qing XU, Letian TENG, Dawei RUAN, Chongcheng ZHONG, Werner HUFENBACH, Andreas ULBRICHT