RE 92004-01-S031/08.2015 | A4VG Series 40 Bosch Rexroth AG 11/40
Product description
3.2 Functional description
In order for you to be in a position to identify problems in a variable pump and to
perform repairs effectively, knowledge of the functionality and the overall structure
of the device is essential.
This section gives you a high level overview.
The variable pump is an axial piston variable pump in a swashplate design for
hydrostatic drives in closed circuit.
The volumetric flow is proportional to the drive speed and the displacement. The
flow rate can be varied continuously by adjustment of the swashplate.
A detailed functional description is contained in the product-specific instruction
manual RE 92004-01-B.
The following sectional drawing shows the design of the A4VG series 40 axial
piston pump schematically.
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Fig. 2: Sectional drawing of variable pump
1 Drive shaft
2 Retaining plate
3 Stroke piston
4 Controller
5 Control plate
6 Internal gear pump
7 Suction port
8 Cylinder
9 Piston
10 Slipper pad
11 Swashplate
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