| 摘要 |
A suctioning device (1) comprising at least two suctioning pumps (10, 20) mounted on the same vacuum collector (30), in addition to automatic management means (40) enabling said pumps (10, 20) to be operated in parallel or in a series, characterized in that the automatic management means (40) comprise first monitoring means (50) for controlling the air flow at the exit of a first pump (10); second monitoring means (60) for controlling air pressure inside the vacuum collector (30); distribution means (70) for interrupting the admission of air from the vacuum collector (30) in a second pump (20), and for enabling the admission of air from the first pump (10) in the second pump (20), said distribution means (70) being used when the air flow at the exit of the first pump (10) and the air pressure inside the vacuum collector (30) respectively attain predetermined minimum values. |
