Bosch A4VSG - About this Product; Performance Description; Assembly of the Axial Piston Unit

18/60 About this product
Bosch Rexroth AG, RE 92100-01-B/09.2012 Series 10, 11 and 30,
5 About this product
5.1 Performance description
The axial piston variable pump generates, controls and regulates a hydraulic-fluid
flow. It has been designed for stationary applications.
Refer to data sheet RE 92100 and the order confirmation for the technical data,
operating conditions and operating limits of the axial piston unit.
5.2 About this product
The A4VSG is a variable pump with axial piston rotary group in swashplate design
for hydrostatic drives in closed circuits. Flow is proportional to drive speed and
displacement.
The flow can be steplessly changed by controlling the swashplate (11). For axial
piston units with swashplate design, the pistons (9) are arranged axially with respect
to the drive shaft (1).
In the closed circuit, the hydraulic fluid flows from the hydraulic pump to the
consumer (e.g. the hydraulic motor) and from there directly back to the hydraulic
pump.
There is then a high-pressure side (5) and a low-pressure side(7), which can change
according to loading.
5.2.1 Assembly of the axial piston unit
4
1
2
3
81011 9
5
7
6
Fig. 2: Assembly of the A4VSG
1 Drive shaft
2 Retaining plate
3 Stroke piston
4 Control plate
5 High-pressure side
6 Port plate
7 Low-pressure side
8 Cylinder
9 Piston
10 Slipper pad
11 Swashplate
Closed circuit