- 专利标题: Rail tie having embedded automatic differential settlement compensation apparatus using oil pressure for railroad tracks
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申请号: US15120524申请日: 2014-12-04
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公开(公告)号: US10138604B2公开(公告)日: 2018-11-27
- 发明人: Seong-Hyeok Lee , Jin-Wook Lee
- 申请人: KOREA RAILROAD RESEARCH INSTITUTE
- 申请人地址: KR Gyeonggi-do
- 专利权人: KOREA RAILROAD RESEARCH INSTITUTE
- 当前专利权人: KOREA RAILROAD RESEARCH INSTITUTE
- 当前专利权人地址: KR Gyeonggi-do
- 代理机构: JCIPRNET
- 优先权: KR10-2014-0022039 20140225
- 国际申请: PCT/KR2014/011794 WO 20141204
- 国际公布: WO2015/129996 WO 20150903
- 主分类号: E01B29/04
- IPC分类号: E01B29/04 ; E01B3/30 ; E01B1/00
摘要:
By supporting a space generated by a settlement of the track bed gravel or asphalt roadbed underneath a concrete rail tie with cylindrical rods, and installing the present invention, one each separately, on the left and right sides of the concrete rail tie, recovery from settlements is automatic, and the response to differential settlements of the left and right rails of the track due to the train load can be easily facilitated, and by installing pressure reducing valves on the upper part of the concrete rail ties, pressure can be reduced while maintaining the track system as is without having to dismantle the concrete rail ties, and accordingly the usability of the concrete rail ties can be improved.