Pump with variable delivery flow

摘要

The pump functions by adjustment of a displacement chamber and has pump wheels rotating inside one another. The pump wheels are axially displaced in such a way that the varying displacement chamber is maintained, and so that counteracting axial forces are used for the adjustment. The drive shaft (1) is on the one hand rotatably located with a guide bolt (2), which is firmly connected with a sealed housing and on the other hand is firmly connected with the pump wheel (3). A permanently secured and sealed slotted wheel (5) in the pump chamber (3) is rotatably and axially displaceably arranged in relation to the housing (4) and the guide bolt (6).