| 摘要 |
The invention describes a prime mover comprising a housing comprising a fluid inlet and a fluid outlet, the housing enclosing first and second rotatable members, each rotatable member comprising a plurality of radially extending vanes, wherein one or more vanes of each of the first and second rotatable members are arranged, in use, to mesh as the first and second members are rotated, and wherein the fluid inlet is situated such that the fluid flow into the prime mover effects positive pressure on at least one vane of each of the first and second rotatable members such that the rotatable members are urged to rotate in opposite directions.
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