| 摘要 |
An oil pump feeds pressurized oil into the bottom of the vane-retaining slots of the rotor of a rotary sliding vane compressor in order to urge the vanes out of the slots and into sealed contact with the cylindrical wall of the cavity in which the rotor is eccentrically rotated. The oil pump and rotor are both driven by the same drive shaft and as their speed changes the oil pressure on the vanes tends to increase. At the same time, centrifugal action also tends to increase the force impelling the vanes outwardly. The total force on each vane, however, is maintained within desired limits regardless of rotor speed by dimensioning the oil pump supply to cause increasing cavitation, and consequently a reduction in the rate at which the oil pressure would otherwise increase, in response to increasing speed.
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