公开(公告)号：EP4263317A1

公开(公告)日：2023-10-25

申请号：EP21835768.9

申请日：2021-12-15

申请人： CRRC Qingdao Sifang Co., Ltd. ,  CG Rail - Chinesisch-Deutsches Forschungs - Und Entwicklungszentrum Für Bahn - Und Verkehrstechnik Dresden GmbH

发明人： TIAN, Aiqin ,  ZHONG, Chongcheng ,  WANG, Shi ,  ZHANG, Yi ,  FU, Yu ,  ZHANG, Lianhe ,  CUI, Jian ,  LIN, Haobo ,  ULBRICHT, Andreas ,  HUFENBACH, Werner ,  ZEIDLER, Florian ,  HAUSCHILD, Jonas ,  HALATA, Maik ,  MARTIN, Bert ,  ILLGNER, Jens ,  SOLTYSIAK, Stefan ,  IRMSCHER, Patrick

IPC分类号： B61F5/52 ,  B61F5/30 ,  B29C70/00

公开(公告)号：EP4406809A1

公开(公告)日：2024-07-31

申请号：EP22872183.3

申请日：2022-09-26

申请人： CRRC Qingdao Sifang Co., Ltd.

发明人： DING, Sansan ,  GAO, Yulong ,  SUN, Houli ,  WANG, Xiaoming ,  ZHANG, Xiongfei ,  CHEN, Dongfang ,  WANG, Shi ,  ZHANG, Lianhe ,  XIAO, Peng ,  ZHANG, Yi ,  RUAN, Dawei

IPC分类号： B61F5/52

CPC分类号： Y02T30/00

摘要： A frame, a bogie, and a rail vehicle. The frame comprises two side beams and two cross beams connected between the two side beams; air springs of the bogie are mounted on the side beams; at least one auxiliary beam is connected between the two cross beams; the inner cavity of the auxiliary beam is divided into a first cavity and a second cavity; the first cavity is communicated with the inner cavity of one of the cross beams so as to jointly serve as an additional air chamber of one of the air springs, and the second cavity is communicated with the inner cavity of the other of the cross beams so as to jointly serve as an additional air chamber of the other of the air springs. In the present solution, the auxiliary beam of the bogie frame is used as a connecting member for connecting the front and rear two cross beams and is also divided into the first cavity and the second cavity, and the first cavity and the second cavity can be communicated with the inner cavities of the cross beams so as to serve as the additional air chambers of the air springs mounted on the bogie frame, such that the volume of the additional air chambers is increased, and the structure of the frame is simplified.

公开(公告)号：EP3988418A1

公开(公告)日：2022-04-27

申请号：EP20825540.6

申请日：2020-04-22

申请人： CRRC QINGDAO SIFANG CO., LTD.

发明人： DING, Sansan ,  LIANG, Haiting ,  ZHANG, Lianhe ,  WANG, Wanjing ,  TIAN, Aiqin

IPC分类号： B61D17/04

摘要： A rail vehicle body structure, comprising: a tubular corrugated plate (1); an annular beam (2) and an underframe cross beam (3) sleeved within the corrugated plate (1); and underframe side beams (4) provided between the annular beam (2) and the underframe cross beam (3). The two sides of the bottom of the corrugated plate (1) are symmetrically provided with connection parts (12), and the underframe side beam (4) is disposed on the outside of the connection part (12).