Title:
AIR CONTROL APPARATUS FOR BALLAST HOPPER WAGON
Document Type and Number:
WIPO Patent Application WO/2022/193486
Kind Code:
A1
Abstract:
An air control apparatus for a ballast hopper wagon, comprising a first air storage cylinder (6), a second air storage cylinder (7), a pair of first pneumatic operating valves (8), a second pneumatic operating valve (9), and three bidirectional air cylinders (3). The pair of first pneumatic operating valves (8) are disposed on one side of a sleeper beam upper cover plate (5), and the second pneumatic operating valve (9) is disposed on the other side of the sleeper beam upper cover plate (5); the first air storage cylinder (6) and the second air storage cylinder (7) are respectively disposed on both sides of an end plate (4); the three bidirectional air cylinders (3) are respectively disposed on the sleeper beam upper cover plate (5), and each bidirectional air cylinder (3) is connected to a bottom door mechanical transmission apparatus.
Inventors:
YUAN TAIHONG (CN)
LI YUNXIA (CN)
LI XUYING (CN)
ZHAO ZUXING (CN)
ZHAO MING (CN)
ZHANG CHUNFA (CN)
CHEN YAN (CN)
LIU WENSHENG (CN)
LI YUNXIA (CN)
LI XUYING (CN)
ZHAO ZUXING (CN)
ZHAO MING (CN)
ZHANG CHUNFA (CN)
CHEN YAN (CN)
LIU WENSHENG (CN)
Application Number:
PCT/CN2021/104982
Publication Date:
September 22, 2022
Filing Date:
July 07, 2021
Export Citation:
Assignee:
CRRC TAIYUAN CO LTD (CN)
International Classes:
B61D7/28; B61D7/24
Foreign References:
| CN112849171A | 2021-05-28 | |||
| CN103158724A | 2013-06-19 | |||
| US20180305967A1 | 2018-10-25 | |||
| US3828948A | 1974-08-13 | |||
| CN2033793U | 1989-03-08 | |||
| CN109625017A | 2019-04-16 |
Attorney, Agent or Firm:
BEIJING SICHUANG DACHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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