| 摘要 |
A pressure fluid motor adapted to be operated by compressed air, steam, or hydraulically, comprising a cylindrical housing having a smooth inner surface and a concentric cylindrical rotor having a roughened surface provided with inlet means for introducing the pressure fluid into the space between the rotor and the housing and outlet means remote from the inlet means for venting spent pressure fluid whereby the pressure fluid is induced to flow through the motor in a vortex path. The clearance between the rotor and the housing is from about 0.0075 to about 0.03 inches.
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