plenum chamber
mechanics
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development of air-cushion machines
- In air-cushion machine: History
Cockerell (later knighted) bypassed Thornycroft’s plenum chamber (in effect, an empty box with an open bottom) principle, in which air is pumped directly into a cavity beneath the vessel, because of the difficulty in containing the cushion. He theorized that, if air were instead pumped under the vessel through a…
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