| 发明名称 |
TRAIN TUNNEL VENTILATION METHOD AND APPARATUS |
| 摘要 |
<p>TRAIN TUNNEL VENTILATION METHOD AND APPARATUS 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.</p> |
| 申请公布号 |
CA1047824(A) |
申请公布日期 |
1979.02.06 |
| 申请号 |
CA19770273621 |
申请日期 |
1977.03.09 |
| 申请人 |
SOUTHERN PACIFIC TRANSPORTATION COMPANY |
发明人 |
JAEKLE, WILLIAM M. |
| 分类号 |
E21F1/00;F24F7/06;(IPC1-7):21F1/00 |
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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