Network optimization information:

When the pressure of high-pressure oil decreases and the pressure transmitted by the regulating spring to the pilot piston is greater than the hydraulic pressure at the upper end of the pilot piston, the control valve core moves above the valve sleeve under the action of the regulating spring to connect the control oil in the large chamber of the variable piston with the low-pressure chamber. The pressure at the small end of the variable piston is high, and the pressure at the large end is low. Therefore, the variable piston moves downward under the effect of the pressure difference, increasing the swing angle between the cylinder and the main shaft. At the same time, Low speed cycloidal hydraulic motor The pressure of the big and small springs on the piston decreases, and the piston pushes the guide rod and the control slide valve downward under the above pressure until it is balanced with the force of the regulating spring. At this point, Eaton cycloid hydraulic motor The variable piston is in a new balance state at another position.

When the pressure rises, after the variable starts, the flow decreases when the pressure rises, and the pump changes from a large swing angle to a small swing angle; On the contrary, when the pressure decreases, the pump changes from a small swing angle to a large swing angle, and the flow increases. Therefore, the product of flow and pressure can remain unchanged, that is, constant power variable.