HJS at “Busworld”: Cleaner buses for better air

September 19, 2017

Menden, September 2017 – Buses are on the road all over the city, but they are not always clean. To reduce nitrogen oxide emissions, the German government is launching a billion-euro fund. SCR retrofitting is an ecologically sensible and economically clever solution. With HJS technology, nitrogen oxide pollutants can be almost completely removed from diesel exhaust gases.

  • HJS with its own stand at “Busworld” in Kortrijk
  • Retrofitting city buses with SCR technology
  • Technically self-sufficient system, immediately available
  • System has proven to be highly efficient in real-world operation (RDE)

Dieselgate, EU infringement proceedings against Germany and lawsuits from environmental associations due to massive pollution – the negative headlines surrounding diesel are never-ending. In order to avoid driving bans, the German government wants to invest one billion euros to help local authorities combat nitrogen oxide pollution. One key to a clean future is retrofitting diesel-powered commercial and municipal vehicles and especially public transport buses with an SCR system. At “Busworld” in Kortrijk, Belgium (October 20 to 25, 2017), HJS will demonstrate that retrofitting with such a self-sufficient system is economically attractive and ecologically effective.

At the beginning of September, the federal government decided to increase the funds for retrofitting municipal vehicle fleets. Cities with particularly high levels of nitrogen oxide pollution will be the main beneficiaries.

Functioning pollutant reduction

The modular system developed by HJS removes harmful nitrogen oxide (NOx) pollutants almost completely from diesel exhaust gases. The optimization of exhaust gas aftertreatment for inner-city operation and the use of the latest technologies make a significant difference here. In real-world operation (RDE), the HJS systems prove to be highly efficient and reliable and are immediately available. Retrofitting public transport buses is a particularly effective solution because public buses are on the road in the city all day long. What’s more, in view of the continuing threat of driving bans, public transport will become even more important in the future. Cities are therefore called upon to use vehicles that are as clean as possible and comply with the latest exhaust technology.

From an economic point of view, more than 40 existing buses can be retrofitted for the purchase of a new electric bus. Around 80 percent of public service buses in Germany do not yet comply with the Euro VI emissions standard – retrofitting with SCR is certainly possible. Vehicles with the Euro IV / V / EEV emission standards are particularly suitable. In real operation, NOx emissions can be reduced by up to 95 percent.

There are already interesting lighthouse projects at European level for retrofitting local public transport. Major cities such as Berlin, Madrid and London are already focusing on clean buses – and thus on a cleaner future for their inner cities. The pioneer in Germany is the capital with the Berliner Verkehrsbetriebe (BVG). London in particular has already implemented many measures to improve air quality. More than 1,000 HJS systems have been supplied and installed here.

Based on the positive experience, an additional 5,000 buses in London will be retrofitted with SCR systems to reduce nitrogen oxide over the next two to three years. This is where the expertise of the South Westphalian exhaust specialist “Made in Germany” has asserted itself: HJS is one of the selected suppliers whose technology has been approved by the London transport authority (TfL – Transport for London). The British government is currently providing a total of around 78 million pounds sterling (equivalent to around 89 million euros) in funding for this.

Monitoring the exhaust gas values

Another plus point is that the city buses are equipped with what is known as NOx TV monitoring. The emissions of the buses can be displayed remotely at any time and in real time using a telematics app. The collected data is made available in a cloud for each bus for retrieval.

Retrofitting thousands of city buses with effective technologies is a milestone for a lower-emission future. Detailed information on the technology for local public transport will be available at “Busworld” from October 20 to 25, 2017 in Kortrijk, Belgium. The HJS stand is located in Hall 8, Stand 870.

Press contact:

HJS Emission Technology GmbH & Co. KGAnnette Ritz, Head of Marketing ServicesDieselweg 12, D-58706 Menden/SauerlandPhone: +49 2373 987-218E-mail: annette.ritz@hjs.comInternet: www.hjs.com

About HJS:

As a medium-sized company based in Menden/Sauerland, HJS Emission Technology GmbH & Co KG, founded in 1976, stands for many years of experience and expertise in the field of exhaust gas aftertreatment. Around 400 employees develop, manufacture and market modular systems for reducing pollutant emissions. The innovative environmental protection technologies are used both as original equipment and for retrofitting in passenger cars, light to heavy commercial vehicles and in mobile and stationary applications in the non-road sector. In addition to systems for petrol engines, HJS today primarily offers solutions for diesel engines – especially for the reduction of soot particles and nitrogen oxides. With extensive patent rights for DPF® (Diesel Particulate Filter) and SCRT® (Selective Catalytic Reduction Technology), HJS sets national and global standards.

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