„Air Knife” pneumatic method - dry cleaning solution
This method represents an old technology for cleaning DPFs. It is currently no longer developed. It has been dominated by the hydrodynamic method, which produces much better results.
Currently, top OEM Truck brands use water cleaning because most DPFs are coated (CCRT) and are very sensitive to the 'bake and blow' method.
Air Knife uses a common “bake and blow” cleaning process where a regeneration (oven baked) is performed and then high-pressure air is forced threw the filter channels.
The flow of the compressed air stream can be directed in both directions, i.e. in the opposite direction and in the direction of the exhaust gases escaping from the engine.