Working pressure: the actual pressure of the input motor oil, which depends on the load of the motor. The difference between the inlet pressure and the outlet pressure of the motor is called the differential pressure of the motor. Rated pressure: the pressure that enables the motor to work continuously and normally according to the test standard.
2. Displacement and flow of the hydraulic motor
Displacement: the volume of liquid input required for each revolution of the hydraulic motor without considering leakage. VM (m3 / RAD) flow: the flow without leakage is called theoretical flow qmt, and the leakage flow is considered as actual flow QM.
3. Volumetric efficiency and speed of the hydraulic motor
Volumetric efficiency η MV: ratio of actual input flow to theoretical input flow.