The decision to choose a type of hydraulic pump must be made based on minimum knowledge of the most well-known types of Yuken hydraulic pumps. Therefore, specialists can make the whole purchase process easier for you by recommending the ideal pump.
The role of the hydraulic pump is to move the hydraulic fluid through the Yuken pumps. Basically, it is considered the heart of the whole system. All Yuken pumps provide hydraulic flow to other components such as engines, cylinders, or rods. Also, all hydraulic pumps produce a flow that generates pressure when a flow resistance occurs. Most Yuken pumps are motor-driven and have a pressure relief valve. The most common and used hydraulic pumps are those with gears, pistons, and vanes.
- Yuken Gear pumps
In a Yuken gear pump, the hydraulic fluid is trapped between the pump body and the area of the two gears. This type of Yuken hydraulic pump has a positive or fixed displacement because each rotation of the shaft moves the same amount of hydraulic fluid at the same pressure. Yuken gear pump is compact and ideal for space-saving applications. The design is simple, making them easy to maintain and repair. There are two basic types of Yuken gear pumps: external and internal.
- Yuken Hydraulic gear pump with external gear
External Yuken gear pumps can provide very high pressures, operate at high speeds, and are quieter as compared to the internal gears. Often, this type of Yuken pump is used in applications that require high lifting power and in areas where electrical equipment may be too bulky or expensive. They can also be found in construction or agricultural equipment for powering the Yuken hydraulic systems.
- Hydraulic pump with gears with internal gear
Internal gear Yuken pumps are not used for high-pressure applications. However, they generate flow with minimal pulses. Compared to external gear pumps, internal gear pumps are not as widely used. If used, they work best in measurement applications.
- Yuken Piston hydraulic pump
Yuken piston pumps are classified into two modes: axial piston / radial piston or fixed / variable displacement. Hydraulic piston pumps can withstand higher pressures than sprocket or vane pumps, but their cost of purchase is also higher. At the same time, they are more prone to contamination, but with maintenance according to the manufacturer’s instructions, they should not cause problems.
- Yuken Axial piston pumps
Axial piston pumps are also known as in-line piston pumps. These pistons are aligned with the pump shaft and are arranged in a circular cylindrical block. These types of Yuken hydraulic pumps are used in high-pressure and high-volume applications. They can power aviation hydraulic systems that are used in various missions.
- Yuken Radial piston pumps
In this type of Yuken pump, the pistons are arranged perpendicular to the Yuken hydraulic pump axis and are arranged radially. Each piston has its own inlet and outlet ports leading to a valve chamber. The valves in the chamber control the release and intake of hydraulic fluid. Radial piston pumps are used in machine tools or as a power supply in Yuken hydraulic pump systems.
- Yuken Hydraulic vane pump
Like piston pumps, vane pumps can be fixed or variable displacement. Hydraulic vane pumps are commonly used in commercial vehicles. Nowadays they are not used as often, mostly being replaced by Yuken gear pumps. Vane pumps are not designed to operate under high-pressure conditions.
Key points for choosing the best Yuken hydraulic pump
There are some key points that you should keep in mind to buy the best Yuken hydraulic pump:
- Type of hydraulic fluid to be used
- Maximum operating pressure
- Maximum operating speed (in rpm)
- Fixed or variable displacement
- Torque values