Control for rotary pump or motor - has geometry of toothed rotor within stator defining pressure cells

摘要

The control is for rotary pumps and motors, especially units in which the displacement rotor comprises a toothed stator engaged by a toothed rotor. - The tooth profile of the displacement rotor toothing is so arranged that the cross section of the control openings is always sufficiently large that for each displacement cell a uniform flow speed is maintained.