Does the hydraulic pump push the fluid?
Date:
2023-11-03
The hydraulic pump converts the mechanical energy of the prime mover into hydraulic energy for use by the system.Hydraulic energy is a combination of pressure and flow required by an actuator to perform useful work.It is important to understand that hydraulic energy is both pressure and flow, because one cannot complete the work without the other.Pressure is composed of trapped fluid, and the flow will have no energy to move the fluid alone.
The hydraulic pump converts the mechanical energy of the prime mover into hydraulic energy for use by the system.Hydraulic energy is a combination of pressure and flow required by an actuator to perform useful work.It is important to understand that hydraulic energy is both pressure and flow, because one cannot complete the work without the other.Pressure is composed of trapped fluid, and the flow will have no energy to move the fluid alone.
The hydraulic pump pushes the fluid. In this regard, the fluid can be regarded as a solid because it is transmitted throughout the machine and then pushes the actuator to move the load.Motion controllers will let me point out that oil is compressible, but this is a discussion on another blog.
The point is that the pump may push on sand, ball bearings, or other solid media that can form the shape of its container, and the result is still the transfer of force.
The transmission of force is indeed synonymous with hydraulics and is also the basis of Cosford's Law, which states that “if pressure makes it disappear, the flow rate is the rate at which pressure can be generated."”For the movement of the fluid, the pressure reaches the position of the pump; always.Facing the fallacy that pressure is fluid, this is wrong.The pressure will rise to the pressure required to overcome the downstream resistance, but if the pressure is not activated at the pump, the fluid will move backward.
The pressure in hydraulic pressure is the result of Newton's third law of motion, which makes every action have equal and opposite reaction forces.The reverse force can be a loaded cylinder or a flow controller, and the pump does not care.
It will continue to push the fluid as the pressure rises to overcome the resistance, even if this will cause the prime mover to overload.
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