| 摘要 |
The invention relates to a vane-type pump or motor for liquid or gaseous fluids, and especially steam. The stator (7) has two cams (3) in opposition, guiding the vanes (4). Each cam occupies 90 DEG of annular space; the ports (2) occupy these 90 DEG so as to avoid fluid forces on the inward- or outward-moving vane when they are not in full section. The rotor takes four vanes (4) joined together by pushrods (5) running in recesses (6) to allow fluids to flow between the bases of the vanes and their housings. Main applications: external combustion engine, motor oil, water, compressed-air pump, flow meter. <IMAGE>
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