| 摘要 |
A jet propelled motor in which a plurality of rotating blades is attached to a common shaft and terminates at one end in a drive shaft and at another end in a drive pressure inlet and a brake pressure inlet; the drive pressure inlet being coupled through the rotating shaft and a channel in each of the blades to a spring-biased ball valve which releases after a predetermined pressure and allows the pressure to exit through a jet drive exhaust on the end of the blade; the plurality of blades being disposed in a plurality of planes and progressively reducing in length; a valve seat in the blades in at least one of the planes for shutting off the jet exhaust to that plane of blades after the shaft has reached a predetermined rotational speed and a braking pressured input coupled through the shaft to an opposite edge of the blades for braking the rotation of the shaft when desired.
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