| 摘要 |
Conveying apparatus having a gearwheel which is rigidly connected to a shaft (47) so as to rotate with it and the toothing of which is in engagement with the toothing of another gearwheel for conveying conveying a medium between a first channel region (55) and a second channel region (56), wherein a control disc (61) is mounted rotatably on the shaft (47) by means of a bearing (63), wherein the rotational movement of the control disc (61) is restricted by means of a stop washer (6), wherein the control disc (61) has a first axially extending recess (65) for conducting conveying medium, to or from the first channel region (55), and has a second axially extending recess (65) for conducting conveying medium, from or to the second channel region (56), wherein, depending on the rotational position, the first axially extending recess (65) of the control disc (61) is connected to a feed channel (41, 42, 45) or a discharging channel (20, 40, 44), and the second axially extending recess (65) of the control disc (61) is connected to a discharging channel (41, 42, 45) or feed channel (20, 40, 44). |
