| 摘要 |
A gas cushion for a vehicle which rides thereon is formed by introducing gas downwardly under pressure through a plurality of peripheral passages at an angle of 30 to 45 DEG relative to the vertical, the gas passing into a central cushion. Arrayed externally of the passages are one or more plenum chambers fed at the bottom with leakage gas from the central cushion to form an auxiliary cushion. The plenum chambers may also be supplied directly at their upper ends with gas. The gas passages are formed by an inclined outer wall and a plurality of wall elements facing the outer wall and which are spaced and overlapped to permit gas within the central cushion to recirculate into the gas flowing in the passages. |
