HJS SMF-AR 1,2

The SMF AR system is ideally suited toward applications with deviating application profiles and frequently low exhaust gas temperatures. These low temperature applications are more commonly found on construction sites, on mobile machines and static equipment. The SMF AR System (Sintered Metal Filter with Active Regeneration) regenerates autonomously regardless of the exhaust gas temperature.

Actively regenerated particle filter for individual requirements

With this system, the particulate filter can be regenerated at almost every engine operating point regardless of temperature as the required temperature for soot burn off is generated by the SMF® AR system itself. Thanks to its compact design and construction and the modular structure of the system the SMF AR system can be adapted to suit many different applications. The inlet and outlet pipes as well as the mounting brackets can also be tailored to suit a range of machines and vehicles.

Advantages of SMF AR

• Reduction of soot and ultra-fine particles by more than 99%
• Filter regeneration at low exhaust gas temperatures
• Regeneration without using a Diesel Oxidation Catalyst (DOC) enabling operation with high sulphur content fuel
• Flexible adaptation to different machines and engine powers outputs
• High ash storage capability ensures long service life
• The modular assembly facilitates dismantling of the system for service

Area of application

The SMF® AR system is predominantly suited for off highway applications, but can also be applied to commercial vehicles and buses. It can also be used in combination with an SCR system for Nitrogen Dioxide reduction. This technology can also be used for static engines and railway or marine engines. HJS-SMF® AR system applications are available for both original equipment and for retrofitting.

Functional description

Owing to greatly differing application profiles with exhaust-gas temperatures that are frequently too low, mobile machinery and stationary applications are usaually fitted with active systems, such as the SMF®-AR (Sintered Metal Filter with thermoelectric self-regeneration) system developed by HJS. With this system, the particulate filter can be regenerated at almost any engine operating point, irrespective of exhaust-gas temperature. The heat necesseray to burn off the particulate matter is generated by the SMF®-AR system itself.

Thanks to the compact and modular design of the SMF®-AR system, it can be put to use in many different applications. Pipes and brackets can be modified as required to match the different machines and vehicles. As a rule, SMF®-AR system replace the original silencer.