Technology & how it works
The SMF
® sintered metal filter and the systems based on it are simple to install, exceptionally reliable in operation and also benefit from a long service life.
How the filter works
The hot exhaust gases from the engine – which contain soot particles – are fed into the filter housing and through the SMF
® sintered metal filter developed by HJS. The gaseous components flow through the microscopic pores of the filter pockets; the soot particles, including the ultra-
fine particles, are trapped on the surface and deposited on the individual filter pockets.
The system requires neither extra regeneration aids nor additives or any intervention in the engine management system. Electronic monitoring constantly guarantees the complete operability of the filter system.
The CRT® (Continuous Regeneration Technology) effect continuously frees the filter from the deposited soot
Filter regeneration
The CRT
® effect is used to break down the soot that collects in the SMF
®. The HJS system combines a highly efficient, upstream diesel oxidation catalyst (DOC) with an SMF
®. Optimised tuning of the system results in the filter being continuously and effectively freed from the deposited soot.
Catalytic coating
For OE applications or in the case of vehicles that are operated at low temperatures, the SMF
® can be provided with a specially developed catalytic coating to support the process of filter regeneration.
Monitoring
The ServiceCheck display module included in the scope of delivery monitors the filter system continuously and automatically informs the driver when the system needs to be cleaned.
Electronic monitoring constantly guarantees the complete operability of the filter system
