Double acting: When the motor drives the rotor to rotate, the sliding piece protrudes outward under the double action of the centripetal force and the pressure oil at the bottom of the sliding piece, and the top is closely attached to the inner and outer parts of the stator. The four sliding vanes on the four-section concentric arc form four sealed working oil chambers with the rotor surface surface, the inner and outer surfaces of the stator and the two distribution plates. These oil chambers change from small to large or large to small as the rotor rotates, and can pass through the oil suction window of the distribution plate (connected to the oil suction port) or the oil discharge window (connected to the oil discharge port). Inhale or pressurize the oil.
During each revolution of the rotor, each working oil chamber completes two oil suction and oil pressure, so it is called double-acting piston vacuum pump. Because the upper and lower pressure chambers are symmetric with each other, the shaft is balanced by force and is unloading.
The piston vacuum pump is equipped with small power and large flow. It is the best choice for gas stations, oil depots, chemical industry, oil refinery, aviation kerosene and steam refueling.piston-vacuum-pump-structure
Single action: the sliding piece is embedded in the groove and can slide freely. When the rotation occurs, the sliding piece is sucked onto the pump casing by centrifugation. The sliding plate pump is a positive displacement pump, and the adjacent two sliding pieces move to the lower side. The volume with the pump casing and the rotor is the smallest, and the largest at the top. When the rotor rotates clockwise, the process of the adjacent two slides from the bottom to the top is the volume increase process, so the oil absorption (from the fourth quadrant) To the second quadrant); from the top to the bottom is the volume reduction process, so pressurize the oil (from the second to the fourth quadrant).
Double acting: When the motor drives the rotor to rotate, the sliding piece protrudes outward under the double action of the centripetal force and the pressure oil at the bottom of the sliding piece, and the top is closely attached to the inner and outer parts of the stator. The four sliding vanes on the four-section concentric arc form four sealed working oil chambers with the rotor surface surface, the inner and outer surfaces of the stator and the two distribution plates. These oil chambers change from small to large or large to small as the rotor rotates, and can pass through the oil suction window of the distribution plate (connected to the oil suction port) or the oil discharge window (connected to the oil discharge port). Inhale or pressurize the oil. During each revolution of the rotor, each working oil chamber completes two oil suction and oil pressure, so it is called double-acting sliding vane pump. Because the upper and lower pressure chambers are symmetric with each other, the shaft is balanced by force and is unloading type. The sliding vane pump is equipped with small power and large flow. It is the best choice for gas stations, oil depots, chemical industry, oil refinery, aviation kerosene and steam refueling.liquid-ring-vacuum-pump-installations
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