The control valve controls the displacement of the variable piston. The charge pump supplies the control oil. The working principle of the A4VG pump is also the same, but as a closed variable displacement piston pump, its swash plate can cross the zero position to achieve the change of the flow direction, which is a bit complicated to implement. At the same time, these "syringes" have oil pressure and pressure. The number of syringes depends on the number of plungers. Each plunger and the cylinder cooperate to form a syringe. Size 71 … 90, such as A4VTG 071 EP3**/33R, A4VTG 090 EP4**/33R.įor the axial piston pump, regarding its working principle, we can think of it as several syringes working at the same time.
High pressure pump for the drum drive in mobile concrete mixers High pressure pump for applications in closed circuits up to 500 bar High pressure pump for applications in closed circuits Rexroth Axial Piston Variable Pump A4VG DescriptionĪxial piston variable pump A4VG series 32
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