Displacement pump for conveying of pressurizing agent to consumer, particularly vane-type or roller pump for transmission of motor vehicle, has pump packet with rotor, cam ring and multiple working slides

摘要

The displacement pump has a pump packet with a rotor (3), a cam ring (4) and multiple working slides (5). A cover (8) is axially arranged on a side of the rotor. The working chambers are formed between the cam ring and the rotor, which are limited in axial direction by control plates (6,7). The working chambers are divided by the working slides. The rotor is driven by a drive shaft (2). The drive shaft is provided with a band. The band is present between the rotor and one of the control plates. An annular recess is formed in the rotor or in the control plates.