What is the structure and classification of Nishikin plunger pumps?

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The structure of the Nippon Oil Plunger Pump: The Nippon Oil Plunger Pump is an important component in hydraulic systems. It relies on the reciprocating movement of the plunger within the cylinder body to change the volume of the sealed working chamber, thereby achieving oil suction and oil compression. Plunger pumps feature high rated pressure, compact structure, high efficiency, and easy flow regulation, and are widely used in applications that require high pressure, large flow rates, or flow control, such as hydraulic presses, construction machinery, and ships. An oil research plunger pump is a plunger pump in which the reciprocating motion of the piston or plunger is parallel to the central axis of the cylinder. An axial piston pump operates by utilizing the volume changes generated by the reciprocating motion of pistons parallel to the drive shaft within the piston cylinders. Since both the plunger and the plunger hole are circular components, a high degree of precision in their fit can be achieved during processing; as a result, it offers advantages such as high volumetric efficiency, smooth operation, good flow uniformity, low noise, and high operating pressure. However, it is sensitive to contamination by hydraulic oil, has a complex structure, and is relatively expensive. The straight-shaft swashplate piston pump is divided into two types: pressure-fed type and self-priming type. Most pressure-fed hydraulic pumps use an oil tank with air pressure, while there are also hydraulic pumps that come equipped with a filler pump to supply pressurized oil to the inlet of the hydraulic pump. Self-priming hydraulic pumps have a strong self-priming capability and do not require external oil supply. For hydraulic tanks that are powered by air pressure, it is necessary to wait until the hydraulic tank reaches the required pressure after each start-up of the machine before operating the equipment. If the air pressure in the hydraulic oil tank is insufficient, it can affect the machine, causing separation between the components inside the hydraulic pump; this in turn leads to abnormal wear of the return plate and the pressure plate within the pump.