A hydraulic vacuum pump uses mechanical action powered by hydraulic fluid to create a vacuum at its inlet, allowing atmospheric pressure to force fluid into the pump.
Here's a breakdown of the process:
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Hydraulic Power Source: The pump is driven by a source of pressurized hydraulic fluid, typically from a hydraulic system. This fluid provides the energy needed for the pump's operation.
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Mechanical Action: The pressurized hydraulic fluid drives a mechanical mechanism within the pump. This mechanism can be a piston, vanes, or other moving components.
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Vacuum Creation: The mechanical action creates an expanding chamber at the pump's inlet. As the chamber expands, the pressure within it decreases, creating a partial vacuum.
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Fluid Intake: The vacuum at the inlet creates a pressure difference between the inlet and the surrounding environment (atmospheric pressure). This pressure difference forces fluid (liquid or gas, depending on the application) into the pump chamber. The fluid being drawn in fills the vacuum.
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Fluid Displacement: After the chamber is filled, the mechanical action reverses, decreasing the volume of the chamber. This reduction in volume increases the pressure of the fluid inside.
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Outlet Discharge: The pressurized fluid is then discharged through an outlet port. The cycle then repeats, continuously creating a vacuum and pumping fluid.
In essence, the hydraulic system drives the pump's mechanism, which then creates a vacuum, draws in fluid, and expels it at a higher pressure (or moves it from one location to another under vacuum).
