Motor vehicles – Surface effect vehicles – Having propulsion or control means
Patent
1980-05-20
1982-12-14
Brust, Joseph Paul
Motor vehicles
Surface effect vehicles
Having propulsion or control means
180128, 114 67A, B60V 111, B63B 138
Patent
active
043633722
ABSTRACT:
A gas-cushion vehicle is provided with a system for reducing dynamic variations in cushion gas pressure. The system comprises a gas-flow outlet connection between a space occupied by cushion gas and the atmosphere. A flexible wall member of inflatable form is disposed within the connection and is operable so as to allow cushion gas to escape to the atmosphere as cushion pressure tends to increase, and to impede the escape of cushion gas as cushion pressure tends to decrease. The flexible wall member provides a flexible barrier maintaining a pressure differential between the space occupied by cushion gas and the atmosphere. Dynamic variations in cushion pressure will alter this pressure differential and the resistance to the escape of cushion gas offered by the wall member will then alter accordingly, so that, if the cushion pressure rises, the resistance will be too weak to contain this pressure and the wall member will deflect to allow cushion gas to escape through the connection.
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Brust Joseph Paul
Vosper Hovermarine Limited
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