Railroad hopper car

US11052927B2 · kind B2 · utility

Assignee

• CRRC YANGTZE GROUP CO., LTD. · CN

Inventors

• Liangcai Lin · 红钢城街道, CN
• Biaowen Xiang · 红钢城街道, CN
• Chuqiang Tang · 红钢城街道, CN
• Hong Cui · Hoboken, US
• Yueming Hu · Beijing, CN
• Song-Ming Wang · Danei, TW
• Xuebin Zhu · 红钢城街道, CN
• Rui Yan · 红钢城街道, CN
• Chuanping Zheng · 红钢城街道, CN
• Qi Wei · Hubei, CN

Key dates

• Filing date: Jul 21, 2017
• Grant date: Jul 6, 2021
• Expiry date: Jul 13, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B61D7/28
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a railway hopper car comprising a car body (6), a top cover (1, 2), a bogie (24), a braking device (21), a coupler buffer device (22), and a bottom door (25, 28) and a bottom door opening and closing mechanism (23) mounted at a discharge port at the bottom of a chassis. The railway hopper car further comprises a longitudinal saddle (31) disposed in the center of the car body (6) in the length direction thereof and arranged along the longitudinal direction of the car body (6). By providing the longitudinal saddle (31), the sequential requirement to close the left bottom door (25) and the right bottom door (28) is eliminated, thereby simplifying the structure of the linkage bottom door opening and closing mechanism and reducing manufacture and maintenance costs thereof.