| 摘要 |
A fluid-driven motor comprises a collapsible tube connectable at one end to a source of pressurized fluid, and a pinch-roller engaging the outer surface of the tube and collapsing same at the point of engagement, whereby the pressure within the tube drives the pinch-roller and a mechanical power output device coupled thereto. In the described preferred embodiment, the pinch-roller mounting is a rotary one and supports a plurality of pinch-rollers, the collapsible tube being supported in a semi-circular form so as always to be engageable by at least one of the pinch-rollers.
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