Vorrichtung und Verfahren zur Rückförderung von flüssigen Medien durch parallel betriebenen Pumpen

摘要

The return feed for swarf bearing machine tool coolant has a return feed container (10) with internal sensors (23) mounted at different heights. When a sensor is overfilled, information is sent to a control circuit (25) with a memory to control the return pump. The logic is set so that the longest unconnected pump is connected.