A soot filter control system

摘要

A system is disclosed for controlling activation of a filter 16 for removing soot from oil used to lubricate an internal combustion engine 5. The system is operable to determine when soot needs to be removed from the oil and when operating conditions are suitable for removing the soot and uses a variable flow rate pump 15 to allow the flow rate or pressure to be set to a level most suitable for soot removal.