Pump block consisting of several individual pumps with a shared drive shaft. This is achieved by either arranging things axially in a row (where the shaft for the first pump has to transfer all the power) (Figure M 6) or by having a shared transfer case (Figure M 7). With this arrangement, it is possible to have a shaft running right through to accommodate additional pumps.
Figure M 6: Combination of a gear pump and a piston pump
Figure M 7: Multi-circuit axial piston pump