OIL PUMPS

The working principle of gear oil pump

Source:未知 Time:2021-06-29 15:55
1.
Single action: the gear is embedded in the groove and can slide freely.
When, produced by the rotation of the gear to under the action of a centrifugal pump shell, is a positive displacement pump, gear pump of the adjacent two gear motor with pump casing and rotor closed down the volume of the smallest, when it is the largest, when turned to the clockwise, two adjacent gears experience from the bottom to the top of the process is the volume increase, so the oil absorption (from the fourth quadrant to the second quadrant);
From the top to the bottom is the volume reduction.
So pressure oil (from the second to the fourth quadrant).
2.
Double action: when the motor drives the rotor along the rotation, the gear in the centrifugal force and the bottom of the gear pressure oil under the dual action of outward, its top is close to the inner surface of the stator.
The four gears on the four concentric arcs, the outer surface of the rotor, the inner surface of the stator and the two valve plates respectively constitute four sealing working oil cavies.
These oil cavities rotate with the rotor.
Sealing oil chamber from small to large or from large to small changes, can be through the valve plate oil suction window (connected with the oil suction port) or oil drainage window (connected with the oil drainage port) will be sucked or pressed out.
3.
In each rotor rotation process, each working oil chamber to complete two oil suction and pressure, so called double acting gear oil pump, because the high and low pressure cavity is symmetrical, symmetrical, the shaft force balance, for the unloading type.
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