Gear pump with delivery rate control

摘要

In a gear pump, for the purpose of delivery rate control, one of the two meshing pump gear wheels (2, 3) is mounted, by means of a piston, so as to be displaceable in the direction of the distance between the shafts (4, 5) of the two gear wheels (2, 3), in order to vary the meshing engagement (Figure 1). <IMAGE>