Schematic diagram of hydraulic pump operation

Thread Content

The function of a hydraulic pump is to convert the mechanical energy of a power source (such as electric motors and internal combustion engines) into the pressure energy of a fluid. Pumps whose output flow can be adjusted as needed are called variable pumps, while those whose flow cannot be adjusted are called fixed-displacement pumps. The commonly used pumps in hydraulic systems are gear pumps, vane pumps, and piston pumps. The working principle of a hydraulic pump is as illustrated in http://www.dsc86.com/newsdetail_1866026.html: The plunger 2 is pressed against the eccentric wheel 1 by the force of spring 4. When the motor drives the eccentric wheel to rotate, the volume of the sealing chamber V formed by the plunger 2 and the pump body 3 changes alternately. Gear pump, axial piston pump, radial piston pump, internally meshing cycloidal gear pump, vane pump, vane motor