| 摘要 |
This invention relates to rotary piston machines with a positive displacement principle, pressure-tight work chambers and a strong piston actuating mechanism without power transmitting bearings. A piston rotor is rotationally coupled via its pistons or plungers, which reciprocatingly move in the cylinders of a cylinder rotor. Both axial and radial machines are included having a short stroke motion, but only in a co-rotating system. No oscillating mass power exists. This new piston actuating concept is applicable for all machines having at least one rotating pair of piston and cylinder. On top of the wide variety is an axial piston machine with a self-aligning pulling piston actuating mechanism and a quasi complete hydrostatic pressure balance of all movable parts including an outgoing shaft. This invention allows the building of machines, such as water hydraulic motors, pumps, vacuum pumps, and dry running or water-sealed compressors etc, for any reasonable parameter, such as high pressure, high volume, and any reasonable speed without necessarily lubricating said machines. Practice confirms that such machines are the State-of-the-Art in this field. Combinations of two or more machines in one housing, and with one shaft only, are possible also, for instance a motor and a pump for energy recovery systems etc. All these machines are not only able to work completely oil-free and are environmentally friendly, but they also operate at the highest performance combined with a high efficiency.
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