Rotary piston pump, particularly gear pump, has chamber having maximum chamber volume that is limited by portions of pump housing, such that two of pump housings are provided with separate filling bodies with different volumes

摘要

The rotary piston pump (10) has a pump housing (12) and a conveying element (28), which is particularly formed as a gearwheel, where the conveying element is arranged in a chamber (18) of the pump housing. The chamber has a maximum chamber volume that is limited by portions (14,16) of the pump housing, such that two of the pump housings are provided with separate filling bodies (48) with different volumes. The chamber is arranged such that reduction of the maximum chamber volume is performed optionally in one optionally a filling body or in another filling body in the chamber.