Removal method for different types of fluid from one or more containers e.g. residual fuel, oil, coolant, from vehicles, engines or machines

摘要

The method uses at least two temporary stores which are filled and emptied in counter-clockwise operation. One or more removing units with pairs of temporary storage are simultaneously operated by a central pressurised air supply device and a central vacuum supply device. The air and vacuum supply devices alternately apply high and low pressure to the temporary stores of each unit via a controlled switch over valve. When the vacuum device is applied to the temporary store fluid is sucked via a suction line from the containers to be emptied into the temporary store until this has reached a predetermined full state or until there is no more fluid to be removed from the containers. When the full state is reached, the switch over valve switches the temporary stores connected to the vacuum device over to the pressurised air supply device so as to empty the contents of the temporary stores into appropriate end stores via an outlet line, controlled according to repeated use.