A hydraulic component that provides pressurized liquid for hydraulic transmission, which is a type of pump. Its function is to convert the mechanical energy of power machines (such as electric motors and internal combustion engines) into liquid pressure energy. There are many factors affecting the service life of the hydraulic pump, in addition to the design and manufacturing factors of the pump itself, the selection of some components related to the use of the pump (such as couplings, oil filters, etc.), and the operation during the commissioning process are also related.
The working principle of the hydraulic pump is that the movement brings about a change in the volume of the pump cavity, thereby compressing the fluid so that the fluid has pressure energy.
The necessary condition is that there is a change in the sealing volume of the pump cavity.