| 摘要 |
<p>Rotary piston machine (1), especially a gear pump, comprises at least one first conveying wheel (3) connected to a drive shaft (5), and at least one second conveying wheel (4) rotatably mounted on an axle (6) and driven by the first conveying wheel. The conveying wheels are rotatably arranged in the conveying chamber (20) of a pump housing (2). The pump also comprises a control valve (7) for pressure-side shut-off of part of the conveying medium. The control valve is formed by the axle. The axle is mounted in the pump housing so that it can be displaced in an axial direction and forms a control piston.</p> |
