Dynamic fluid system for improving stability of a fluid cushion

Details Dynamic fluid system for improving stability of a fluid cushion Dynamic fluid system for improving stability of a fluid cushion

1976-01-26

1978-03-07

Goodman, Philip

Motor vehicles

Surface effect vehicles

Expansible chamber

180125, 180127, B60V 100

Patent

active

040774899

ABSTRACT:
An annular sealing member extends to ground level to minimize loss of fluid from a lifting cushion. This member includes an inflatable seal hanger envelope mounted on the underside of a fluid cushion vehicle. The inflatable hanger envelope is inflated from the lifting fluid cushion through a tube. The length of this inflation tube is great compared with its bore diameter, thereby producing a pressure drop in the fluid as it flows between the fluid cushion and the hanger envelope. The hanger envelopes of adjacent fluid cushions are also interconnected when the vehicle is supported on four or more fluid cushions. These interconnections divide the total number of fluid cushions into only three independent groups to produce a statically determinant support for the fluid cushion vehicle.

REFERENCES:
patent: 3247921 (1966-04-01), Latimer-Needham
patent: 3756342 (1973-09-01), Burdick
patent: 3757699 (1973-09-01), Wirth
patent: 3768588 (1973-10-01), Vaughen
patent: 3796279 (1974-03-01), Burdick
patent: 3825093 (1974-07-01), Burdick
patent: 3857456 (1974-12-01), Schrink

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