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What are the features of Danfoss hydraulic pumps?
Release date:
2023-04-12
Source:
Fosse Hydraulic Pump Manufacturer believes that hydraulic pumps are essential power components in hydraulic systems, providing the necessary flow and pressure to drive the system—and they are an indispensable core element of any hydraulic setup. Proper selection of a hydraulic pump is critical for reducing energy consumption, enhancing system efficiency, minimizing noise, improving operational performance, and ensuring reliable system operation.
Fosse Hydraulic Pump Manufacturer believes that hydraulic pumps are the essential hydraulic power components responsible for delivering precise flow and pressure to hydraulic systems—they are indispensable core elements of any hydraulic system. Proper selection of a hydraulic pump is critical in reducing energy consumption, enhancing system efficiency, minimizing noise, improving operational performance, and ensuring the reliable operation of the entire hydraulic system.
Danfoss Hydraulic Pump The manufacturer believes the principles for selecting a hydraulic pump are as follows: First, determine the type of hydraulic pump based on the host machine’s operating conditions, power requirements, and the system’s demands for performance. Then, specify its exact model and specifications according to the system’s required pressure and flow rate.
Danfoss Hydraulic Pump Manufacturers generally believe that, due to the varying characteristics of different hydraulic pumps, their structures, functions, and operating principles also differ. Therefore, it’s essential to select the appropriate hydraulic pump based on the specific application. In machine tool hydraulic systems, double-acting vane pumps and pressure-limiting variable vane pumps are commonly used. Meanwhile, in agricultural machinery, port equipment, and small construction machines, gear pumps—known for their strong resistance to contamination—are often preferred. For applications involving heavy loads and high power requirements, piston pumps are typically chosen.
Danfoss Hydraulic Pump Manufacturers emphasize the following precautions for hydraulic pump applications:
1. Avoid starting the hydraulic pump under load whenever possible;
2. When routing pipes, ensure to avoid excessive suction resistance for the hydraulic pump;
3. The built-in relief valve in the hydraulic pump is not suitable for system pressure regulation—it is intended solely as a safety valve.
4. Several pump discharge lines should not be combined into a single pipe of equal diameter before connecting to the oil tank;
5. Avoid connecting the hydraulic pump's discharge line to the system's main return line;
6. Soft hoses or plastic tubes should be avoided as suction lines for the pump;
7. Avoid positioning the highest point of the oil pipe connected to the hydraulic pump's drain port below the pump's shaft line.
8. The installation position of the plunger pump should be below the oil tank's liquid level.
9. The outlet of the system's main safety valve and the oil-leak line from the hydraulic pump should not be directly connected to the hydraulic pump's suction line.
10. Hydraulic pump shafts and prime mover shafts must not exceed the specified coaxial tolerance after assembly.
Danfoss Hydraulic Pump Manufacturers define a gear pump as a rotary pump that transports or pressurizes liquids by leveraging the variation and movement of the working volume created between the pump cylinder and meshing gears. The two enclosed spaces are formed by the two gears, the pump housing, and the front and rear covers. As the gears rotate, the space on the side where the gears disengage gradually increases in volume, creating a vacuum that draws liquid into the pump. Meanwhile, the space on the side where the gears mesh decreases in volume, effectively forcing the liquid out through the discharge pipe. The suction chamber and the discharge chamber are separated by the line where the two gears engage. Notably, the pressure at the gear pump’s outlet is entirely determined by the resistance encountered at the pump’s discharge point.
Danfoss hydraulic pump manufacturers believe that, as the power actuator in construction machinery, the efficiency and control characteristics of hydraulic pumps directly influence the parameter matching, energy utilization, heat generation, vibration, impact, and operational quality of the power system. This, in turn, significantly affects the overall machine's power performance and economic efficiency, making it one of the key considerations for optimizing the balance between power output and energy conservation.
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