Sizes 250 to 750
Axial piston swashplate construction closed circuit
Complete booster valve technology
Axle drive pumps can even be used in conjunction with complete auxiliary pumps.
Features of the Rexroth A4VG variable piston pump series.
Swash plate axial piston variable displacement pumps for closed circuit hydrostatic drives; flow rate proportional to drive speed and displacement and infinitely variable flow rate with swash plate pendulum angle increases from zero to the value; swash plate pendulum can be swung through the center position to smoothly change the direction of the liquid flow; easy to control with a variety of control and a variety of matching variable mode; the pump in the high-pressure side of the oil is equipped with two relief valves to protect hydrostatic drive (pump and motor) from overload; high-pressure relief valve The high pressure relief valve also functions as a charge valve; the built-in auxiliary pump is used as a charge and control pump; the charge pressure is limited by a built-in charge relief valve; the whole series comes with a built-in pressure shut-off valve; Typical applications of Rexroth A4VG variable piston pumps: Concrete pump trucks, heavy-duty hydraulic flatbed trucks, hydraulic pumping stations, proclaiming the world of Rexroth Variable Piston Pumps.
Rexroth variable piston pump#Rexroth A4VSG type piston pump,Rexroth REXROTH variable piston pump is a kind of reciprocating pump, belongs to volume pump, its plunger is driven by the eccentric rotation of the pump shaft, reciprocating motion, and its suction and discharge valves are one-way valves. When the plunger is pulled out, the pressure inside the working chamber decreases, the outlet valve closes, and when it is lower than the pressure, the valve opens and the liquid enters; when the plunger is pushed in, the pressure inside the working chamber rises, the valve closes, and when it is higher than the outlet pressure, the outlet valve opens and the liquid is discharged.
The axial piston pump with slide shoe structure is the most widely used axial piston pump, the plunger placed in the cylinder through the slide shoe and swash plate contact, when the drive shaft drives the cylinder rotation, swash plate will be pulled out of the cylinder or pushed back to complete the suction and discharge process. Plunger and
The oil in the working cavity formed by the plunger and cylinder hole is connected to the suction and discharge cavities of the pump through the oil distribution disk. Variable mechanism is used to change the inclination of the swash plate, by adjusting the inclination of the swash plate can change the displacement of the pump.