发明名称 |
Train tunnel ventilation method and apparatus |
摘要 |
A train tunnel is ventilated by closing an exit end of the tunnel as a train approaches the entrance end, so that during passage through the tunnel the train acts as a loose piston moving through a long closed cylinder, to cause a rapid airflow rearwardly around the train.
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申请公布号 |
US4037526(A) |
申请公布日期 |
1977.07.26 |
申请号 |
US19760665425 |
申请日期 |
1976.03.10 |
申请人 |
SOUTHERN PACIFIC TRANSPORTATION COMPANY |
发明人 |
JAEKLE, WILLIAM M. |
分类号 |
E21F1/00;F24F7/06;(IPC1-7):E01G7/02 |
主分类号 |
E21F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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