PC2000-8 fan pump

2 month ago

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Jining Juheng Hydraulic Machinery Co., Ltd.

 5 year year

Product details

Komatsu new Parts PC2000-8 FAN Pump 708-2L-00280

1. Power Transmission

At the heart of the fan pump's operation is the power transmission mechanism. The pump is connected to the engine of the excavator through a series of drive shafts and couplings. When the engine starts running, it generates rotational power. This power is transferred to the pump's input shaft, which in turn sets the internal components of the pump in motion. The smooth and efficient power transfer ensures that the pump can operate at the required speed and generate the necessary hydraulic pressure to drive the fan.

2. Hydraulic Fluid Intake

The fan pump is designed to draw in hydraulic fluid from the excavator's hydraulic reservoir. It has an inlet port through which the hydraulic fluid enters the pump. The internal structure of the pump, such as the impeller or gear mechanism (depending on the pump type), creates a low - pressure area at the inlet. This low - pressure zone sucks in the hydraulic fluid, which is then directed into the pumping chamber. The hydraulic fluid used is a specialized fluid that has excellent lubricating and anti - wear properties, ensuring the smooth operation of the pump's internal components.

3. Pressure Generation

Once the hydraulic fluid is inside the pumping chamber, the pump's internal components start working to increase the pressure of the fluid. In a gear - type fan pump, for example, two meshing gears rotate. As the gears separate on one side, they create a void that fills with hydraulic fluid. As the gears then mesh on the other side, they force the fluid out of the pumping chamber at a much higher pressure. In an impeller - type pump, the rotating impeller uses centrifugal force to accelerate the hydraulic fluid and increase its pressure. This high - pressure hydraulic fluid is the key to driving the fan effectively.

4. Fan Drive

The high - pressure hydraulic fluid is then directed to the fan motor. The fan motor is designed to convert the hydraulic energy of the fluid into mechanical rotational energy. The hydraulic fluid enters the fan motor through an inlet port and exerts pressure on the motor's internal components, such as pistons or vanes. This pressure causes the motor's output shaft to rotate, which is directly connected to the fan. As the motor shaft rotates, it drives the fan blades, creating a powerful airflow. This airflow is essential for cooling various components of the excavator, such as the engine radiator, hydraulic oil cooler, and air - conditioning condenser. By maintaining proper cooling, the fan pump helps to ensure the optimal performance and longevity of the excavator's critical systems.

5. Control and Regulation

The Komatsu PC2000 - 8 FAN Pump 708 - 2L - 00280 is equipped with a control system that allows for precise regulation of the fan speed. The control system can adjust the flow rate of the hydraulic fluid to the fan motor based on various factors, such as the temperature of the engine coolant, hydraulic oil temperature, and ambient air temperature. For example, when the engine is operating under heavy load and the coolant temperature rises, the control system will increase the flow rate of the hydraulic fluid to the fan motor, causing the fan to rotate faster and generate more airflow for enhanced cooling. Conversely, when the temperatures are lower, the control system will reduce the flow rate, saving energy and reducing wear on the pump and fan components.

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Jining Juheng Hydraulic Machinery Co., Ltd.

 Audited supplier

5 year

Address: Jining, China

Main Product: Swing Motor , Final Drive, Excavator Hydraulic Pump, Swing Gearbox, Kawasaki Hydraulic Pump, Travel Gearbox

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