About this product 19/60
RE 92770-01-B/11.2016, A10VGT Series 11,
Bosch Rexroth AG
5 About this product
5.1 Performance description
The Axial piston variable pump generates, controls and regulates a hydraulic fluid flow.
It is designed as a pump for hydrostatic drum drives of concrete mixer trucks in
a closed circuit. The pump has been specifically designed and constructed for the
load collectives in this particular application. The performance data given is based
on this load collective.
Refer to data sheet 92770 and the order confirmation for the technical data,
operating conditions and operating limits of the axial piston unit.
5.2 Product description
The A10VGT is an Axial piston variable pump with swashplate design for hydrostatic
drives in closed circuits. The flow is proportional to the drive speed and displacement.
The flow can be steplessly changed by controlling the cradle (
11
).
For axial piston units with swashplate design, the pistons are arranged axially relative
to the drive shaft.
In the closed circuit, the hydraulic fluid flows from the hydraulic pump to the
consumer, e.g. hydraulic motor and from there directly back to the hydraulic pump.
There is a high-pressure side and a low-pressure side which alternate depending on
which side is under load.
5.2.1 layout of the axial piston unit
1
2
3
4
5
6
7
8
9
10
11
12
Fig. 2: layout of the A10VGT Series 11
1
Drive shaft
2
Retaining plate
3
Stroking piston
4
Control unit
(here HW as example)
5
Suction port
6
Control plate
(distributor plate)
7
Boost pump
8
Cylinder
9
Piston
10
Slipper pad
11
Cradle
12
Coupling flange
(optional)
Closed circuit
