发明名称 |
SNORKEL MAST FOR A SUBMERSIBLE VEHICLE |
摘要 |
<p>There is described a snorkel mast for a submersible vehicle. The mast terminates at the upper end in an inverted U-shaped snorkel head pipe section closed by a butterfly valve. The butterfly valve is operated by a bell-crank lever having a float at one end and a water impact flap at the other. Operation of the bell-crank lever by water level action against the float or by water impact action on the flap if a wave washes over the top of the snorkel mast acts to close the butterfly valve. The mast carries a fairing which comprises a number of fairing elements of airfoil cross-section, vertically spaced on the mast so as to be freely rotatable thereon in water lubricated bearings. The segmented fairings on the snorkel mast maintains hydrodynamic stability during high speed turns.</p> |
申请公布号 |
CA1234725(A) |
申请公布日期 |
1988.04.05 |
申请号 |
CA19850486095 |
申请日期 |
1985.06.28 |
申请人 |
CANADIAN PATENTS AND DEVELOPMENT LIMITED - SOCIETE CANADIENNE |
发明人 |
FERGUSON, JAMES S.;JACKSON, J. ERIC;BROWER-BERKHOVEN, ISAAC B. |
分类号 |
B63G8/36;(IPC1-7):B63G8/04 |
主分类号 |
B63G8/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|