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About this product
Bosch Rexroth AG
, A10VER Series 52, RE 91706-01-B/09.2015
5 About this product
5.1 Performance description
The A10VER Axial piston variable motor converts hydrostatic flow into mechanical
rotation, then controls/regulates this rotation. It is designed for mobile applications,
specifically hydrostatic fan drives.
Refer to data sheet 91706 and the order confirmation for the technical data,
operating conditions and operating limits of the axial piston unit.
5.2 Product description
The variable motor is available in the A10VER plug-in version. The A10VER is a
variable motor with axial piston rotary group in swashplate design for hydrostatic
drives in an open circuit. For axial piston units with swashplate design, the
pistons (
7
) are arranged axially relative to the drive shaft (
). The pistons place a
load on the swashplate (cradle) (
9
) and transfer the torque dependent on pressure
and swivel angle via the cylinder to the drive shaft (
6
). The cylinder and drive shaft
are interlocked. The control of the swashplate (cradle) can change the specific
torque and displacement.
In an open circuit, the hydraulic fluid flows from the reservoir to the hydraulic pump
from where it is transported to the hydraulic motor. From the hydraulic motor, the
hydraulic fluid flows directly back to the reservoir. The output speed of the hydraulic
motor is changed by overcentering the cradle (
9
) to ‒100%
V
g max
, all without altering
the pressure side.
5.2.1 layout of the axial piston unit
5
4
1
8
9
6
7
3
2
12
11
10
Fig. 2: layout of the A10VER hydraulic motor
1
Drive shaft
2
Retainer plate
3
Stroking piston
4
Control plate
(distributor plate)
5
Port plate
6
Cylinder
7
Piston
8
Slipper pad
9
Swashplate (cradle)
10
EZ control valve
11
Overrun valve
12
Time-delay orifice
Open circuit
