Press release vom 16. August 2010
IAA 2010 – HJS presents new exhaust-gas aftertreatment technologies
- Focus on filter and denox systems at this year´s IAA
- New and proven HJS technologies for all types of commercial vehicle
- Comprehensive product range of original equipment (OE) and retrofit components and systems
Menden, 16. Juli 2010 – Future and therefore competitive mobility is at the very top of the agenda of the 63rd International Motor Show (IAA) Commercial Vehicles. The trade fair will be taking place from 23 to 30 September 2010 in Hanover, Germany. It is recognised all around the world as an innovation platform for the commercial vehicles sector. Technical solutions that enable hauliers, bus operators and logistics companies to operate their fleets as cleanly and as environmentally compatible as possible are most definitely in demand this year. And for good reason, too, because requirements and standards are increasingly continuously. To date, many European towns and cities – alone in Germany more than 40 – have set up low emission zones (LEZs) in their city centres and deny access to cars, light-
and heavy-
duty trucks and buses whose pollutant emissions are too high. Restricted mobility isn't the only disadvantage companies with an ageing fleet are faced with: vehicles with high pollutant emission levels are now also being hit with penalty taxes. And 'dirty' trucks are subject to higher tolls on Germany's autobahns.
"Those operators who have their vehicles fitted with an emissions reduction system will guarantee themselves key advantages both in the short and the long term", says Michael Himmen, member of the board of management at HJS Fahrzeugtechnik. This medium-sized enterprise specialises in exhaust-gas aftertreatment technologies – separate systems for reducing diesel particulate and nitrogen oxide emissions and combined systems that cut both simultaneously. This year's IAA will see HJS present the full scope of its extensive portfolio of products for vehicles and all kinds of machinery. In addition to its tried and tested systems, such as the City-Filter® for cars and light-duty trucks, and other diesel particulate filters that cut particulate emissions to almost zero, HJS will also be using the fair to exhibit other innovative new developments (Hall 13, Stand C48).
Coaches and public transport bus technologies
"We have expanded our portfolio to integrate, for example, diesel particulate filter systems that are custom-
tailored specifically to the needs of coaches", explains Michael Himmen. "Tour companies whose coaches ply the roads of Germany and all Europe and frequently drive right into the heart of cities are especially reliant on state-
of-
the-
art filter technologies." Take the highly popular German destination of Berlin, for instance, where vehicles that don't qualify for Germany's green emissions sticker are no longer permitted to enter the city centre. Munich and Stuttgart likewise enforce driving restrictions targeted at lowering the high concentration of fine particulate matter in the ambient air. Driving around low emission zones is simply not an alternative for tour companies. Fitted with the SMF
® system – short for sintered metal filter – from HJS, coaches meet not only German but also European requirements and as such are granted unrestricted access to LEZs.
The very latest state of the art emission reduction system for public transport buses is SCRT® (SelectiveCatalytic Reduction Technology). This technology, developed and co-patented by HJS, cuts the emissions of soot particles of diesel engines by 99% and nitrogen oxide (NOx) emissions by 90%. "SCRT® is currently the most effective exhaust-gas aftertreatment system on the market when it comes to public transport buses", Himmen stresses. "This technology guarantees constant high levels of pollutant reduction irrespective of whether the bus is standing at a bus stop or driving along the road – the perfect prerequisite for use in public transport." As a genuine alternative to buying a new vehicle, SCRT® systems can also be retrofitted to older models, such as EURO III buses. Vehicles that are already fitted with a diesel particulate filter can be retrofitted with an SCR unit, so that they then fulfil the strict EURO V and EEV standards.
Heavy-duty truck technologies
HJS also has a comprehensive range of OE and retrofit systems for heavy-
duty trucks, customised to the specific requirements profile of each model. An SMF
® system is suitable for trucks that cover long distances on motorways and generate constant, high exhaust-
gas temperatures. Ideal for vehicles that are driven primarily in the inner-
city environment and therefore operate more in the low-
temperature range is HJS's CSMF
® technology, with its specially coated filter. Both of these systems reduce the emissions of soot particles, including ultra fine particles, down to the limit of detection. HJS technologies score when it comes to maintenance, too. Compared with conventional ceramic filters, they offer three to four times more mileage and can also be cleaned quickly and easily at the local garage. This cuts downtime costs significantly. Add to this the fact that German and foreign operators running EURO III trucks on Germany's autobahns can, thanks to the government's "ecological toll differentiation scale", save €3150 p.a. in tolls per vehicle by retrofitting an HJS 100% filter system (based on 150,000 autobahn kilometres). As of 2011, this differentiation of toll charges will be even more pronounced, and there are plans to extend the toll system to four-
lane national highways, too. These changes will increase the costs of haulage companies with older fleets even more, providing them with even greater incentive to upgrade them with particulate filter systems.
OE technologies
HJS will also be using the IAA to exhibit new developments targeted specifically at the OE segment, i.e. at vehicle and engine manufacturers. Original equipment manufacturers (OEMs) find themselves under a great deal of pressure owing to the EU-
wide EURO V and VI emissions standards as well other standards such as in the US. The stringent levels prescribe massive reductions in pollutant emissions for new vehicles. HJS offers a number of systems that guarantee a continuous reduction in emissions. So what's so special about HJS systems? Whereas conventional technologies require a specific exhaust-
gas temperature to trigger all the necessary chemical processes, the new systems developed by HJS are able to generate the required exhaust-
gas temperature levels on their own. This is achieved, for instance, by equipping the systems with an integral single or multi-
stage flame burner, which, for larger engines, can be supplemented by an additional hydrocarbon dosing unit. Another method is to use a catalytic preburner (KVB), likewise a new development HJS will be exhibiting at the IAA. These active HJS processes for thermal management ensure that exhaust-
gas temperatures are right at all times and for all systems, not only for particulate filters but for downstream SCR reduction systems for pollutants such as NOx, too. "They are a safe bet for manufacturers", says Himmen. "With these systems and components, compliance with future emissions standards is guaranteed."
Another new approach of HJS's is to combine technologies. The proven SMF®-AR (sintered metal filter with thermoelectric regeneration) system can be combined with an SCR denox unit, which facilitates the cutting of several pollutants in one swoop. The filter can be freed from the deposited soot whatever operating state the engine is in – whether it is idling or running at full throttle. A further advantage of the systems is that they are NO2-neutral, that is, they don't up vehicles' secondary emissions.
HJS also supplies electronic control units, such as the Aftertreatment Control Unit (ACU), as an ideal complement to its systems. "It acts like the brain of the entire exhaust system", says Himmen. The unit uses perfected sensor technology to measure the temperature, pressure and concentration of pollutants, automatically identifies the right moment for regeneration of the filter and controls AdBlue® dosing. The ACU doesn't interfere with the engine management system in any way and can be configured with very little effort to operate with any aftertreatment technology, be it a particulate filter, denox system or combination of the two.
Visitors to the IAA can discover more about HJS's systems for cars, buses, light-duty and heavy-duty trucks by coming to the company's stand (Hall 13, Stand C48) and going to www.hjs.com.
