| 摘要 |
A jet propulsion system for an underwater vehicle, such as a submarine or torpedo is disclosed. The propulsion system includes a plurality of blades secured to a hub, in the front, which is rotated by a shaft connected to an engine through a transmission. A shroud surrounds the plurality of blades, and in combination with the body of the underwater vehicle, forms a nozzle through which flow is accelerated. The shroud is secured to the body of the underwater vehicle through a plurality of vanes. An additional hub including an additional set of blades may be secured to the underwater vehicle for additional thrust. The second hub may be located within the shroud. The inlet to the shroud may be covered with a screen mesh.
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