What Is The Theoretical Flow Rate From A Fixed Displacement Axial Piston Pump

What Is The Theoretical Flow Rate From A Fixed Displacement Axial Piston Pump?

What is the theoretical flow rate that can be expected from a fixed displacement axial piston pump? How is it calculated, and what factors influence this flow rate? Explore the fundamental principles behind this hydraulic pump's output and gain insights into its performance characteristics.

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Fixed displacement axial piston pump is a hydraulic pump that has got uniform fluid flow. It is commonly used in various hydraulic systems requiring constant fluid flow. Theoretical flow rate of fixed displacement axial piston pump can be calculated from its design parameters.

Flow rate of fixed displacement axial piston pump depends on two major design parameters, which are displacement volume and rotational speed. Displacement volume refers to the quantity of fluids displaced by the pump in one revolution while rotational speed is the velocity at which the shaft rotates for this pump.

What Is The Theoretical Flow Rate From A Fixed Displacement Axial Piston Pump
What Is The Theoretical Flow Rate From A Fixed Displacement Axial Piston Pump

In order to find out the theoretical flow rate, we should multiply the displacement volume by angular velocity. As follows:

Flow Rate = Displacement Volume × Rotational Speed

Displacement volume usually comes in cubic centimeters (cc) or liters (L), while rotational speed is given in revolutions per minute (RPM). This will give the value of flow rate with units of cc/minute for a piston pump and L/min for a gear pump.

Let us say that there is fixed displacement axial piston pump with a 100 cc volume and rotating at 1000 RPM. Therefore, using this formula we can theoretically calculate the flow rate;

Flow Rate = 100 cc × 1000 RPM =􏰀 100,000 cc/minute

It should be realized also that these figures are merely hypothetical because they assume perfect conditions; hence they only represent maximum capacity due to factors such as internal leakage, mechanical losses and system back pressure which could decrease actual flow rates. Moreover, it is important to keep in mind practicality limitations including overall efficiency that shows how efficient it is at converting power into hydraulic power.

To sum up, one can simply determine the theoretical flow rate for fixed displacement axial piston pump by multiplying its displacement volume with its rotating speed. This value provides an idea of what could be achieved regarding maximum possible discharge if all things were ideal. However true flowing rates vary since there are other considerations when designing a hydraulic system around a fixed displacement axial piston pump like efficiency among others.

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