Loader Gear Pump

Here is a detailed introduction to common pumps used in loaders (gear pumps, vane pumps, and piston pumps):

Gear Pumps

- Working Principle: Meshing gears rotate inside the pump body. In the suction chamber, gears disengage, increasing volume to create vacuum for oil suction. In the discharge chamber, gears engage, reducing volume to push oil out.

- Application Scenarios: Suitable for harsh working environments with low requirements for oil cleanliness, commonly used in low-pressure systems of loaders, such as pilot oil circuits and power steering systems.

Vane Pumps

- Working Principle: As the rotor rotates, vanes extend and cling to the stator inner surface under centrifugal force and oil pressure. Volume changes between adjacent vanes achieve oil suction and discharge.

- Application Scenarios: Widely used in medium-low pressure working systems of loaders, such as lifting and tilting oil circuits for working devices, ensuring smoother movements.

Piston Pumps

- Working Principle: Pistons reciprocate in cylinder bores, changing sealed volume. Oil is sucked in when pistons extend and discharged when pistons retract.

- Application Scenarios: Commonly applied in high-pressure systems of loaders, such as main oil circuits for working devices, meeting the requirements for high pressure and large flow during heavy-duty operations.

In practice, loaders may select different pump types or adopt combinations of multiple pumps based on specific working needs and conditions to achieve optimal performance and efficiency.