| 摘要 |
This invention relates to a fluid displacement apparatus and, more particularly, to fluid displacement apparatus which, with suitable modifications, can be used as a pump, compressor, pneumatic or hydraulic motor or as an internal combustion engine. The fluid displacement apparatus includes a body having a chamber defined therein. At least a portion of the inner surface of such chamber is in the form of a concave segment. Partition means are sealingly engaged with said chamber and define an enclosed space therewith. A baffle extends through said partition means in sealing engagement therewith and is movable relative thereto. The baffle has a peripheral edge shaped to sealingly engage said inner surface of said chamber in relatively movable relation thereto such that said baffle is capable of sweeping motion to and fro relative to said chamber whereby to vary the volumes of the regions located between said inner surface and said partition on the opposing sides of said baffle. Port means and valve means communicate with said chamber for permitting or effecting inflow and outflow of fluid from said chamber in a desired fashion during the occurrence of said sweeping motion of said baffle relative to said chamber. Rotatable shaft means are operatively connected to said baffle and/or said chamber for rotation of said shaft means about an axis during said sweeping motion of the baffle relative to said chamber whereby the sweeping motion of the baffle relative to the chamber effects rotation of the shaft means or vice versa.
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