What are the types of hydraulic pumps?

What are the types of hydraulic pumps?

• Gear pumps
They are divided into external gear or internal gear. The structure of gear pumps is simple; It consists of two spur gears working with each other. Oil is sucked from the suction line with the gears and then taken between the gears and directed to the pressure line. It can reach pressures up to 200 bar. It is a type of pump that is easily found in the market due to its economic nature. The disadvantage is: It may show low efficiency at high pressures and have a low service life. Let’s also give the information that there is a high noise level.
• Vane pumps
Vane pumps are variable displacement. They can go up to 100 pressure. Another use of the vane pump is the vane pump. It is also known as vane pump in the market. It is mostly preferred in machine tools and hydraulic circuits operating in closed areas. Unlike gear pumps, it has a low noise level, which is highly preferred. As a disadvantage, it is possible to say: Its suction performance is lower than other pumps.
• Piston pumps
Piston hydraulic pumps are a type of pump that has the highest efficiency among hydraulic pump types and can produce the highest pressures. There are different types such as inclined axis, fixed axis, variable and constant flow.
Hydraulic pump malfunctions
Regardless of the pump type, each pump has its own maintenance conditions. Regular maintenance of the pump will not only increase work efficiency, but also ensure the longevity of your pump. We can list the common faults in hydraulic pumps as follows;
• Pollution problem
• Cavitation problem
• Failures caused by incorrect oil selection
• Assembly errors caused by incorrect assembly
• Problems in commissioning