发明名称 |
Piston and cylinder actuated polymer mixing valve |
摘要 |
A valve for introducing polymer into a moving water stream prior to flowing the water stream, with the polymer therein, onto a hull surface of an underwater vehicle. The valve comprises a venturi block having therethrough a venturi passageway for flowing water therethrough, a polymer inlet tube extending through the venturi block and into the venturi passageway for introducing the polymer into the water flowing through the venturi passageway. A shut-off plunger extends through a bore in the venturi block and is axially aligned with the polymer inlet tube, the plunger being reciprocally movable in the bore between a first position in which a head portion of the plunger extends into and seals closed the polymer inlet tube, and a second position in which the head portion of the plunger is spaced from sealing engagement with said polymer inlet tube. A piston and cylinder assembly moves the plunger between the first and second positions.
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申请公布号 |
US5924453(A) |
申请公布日期 |
1999.07.20 |
申请号 |
US19980062565 |
申请日期 |
1998.04.20 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
NEDDERMAN, JR., WILLIAM H. |
分类号 |
G05D11/00;(IPC1-7):G05D11/03 |
主分类号 |
G05D11/00 |
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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