The pair say that, by combining CPT’s existing electric supercharger technology with Eminox’s SCRT equipment – which combines CRT (continuously regenerating trap) and SCR (selective catalytic reduction) technology to – they will build a system capable of bringing older vehicles up to Euro 6 standards while also improving fuel economy.
Nick Pascoe, chief executive of CPT, says that the two firms’ memorandum of understanding (MoU) covers European retrofit applications to public transport and utility vehicles as well as heavy goods and off-highway vehicles.
“Following the successful industrialisation by Valeo of our VTES compressor technology for light-duty vehicles, we are confident that this MoU with Eminox will lead to early adoption of the technology in the heavy-duty sector – starting with its retrofit for trucks and buses,” he states.
“As well as gaining field experience with the technology, our aim is to communicate to the aftermarket and retrofit sector, the effectiveness of this method of reducing emissions by combining CPT’s switched reluctance compressor with our established SCRT after-treatment solution,” adds Jog Lall sales and marketing director Eminox.
“We believe this can cost-effectively bring Euro 4 and Euro 5 vehicles up to Euro 6 requirements, thereby meeting LEZ [Low Emission Zone] and ULEZ [Ultra Low Emission Zone] requirements across Europe, while also offering fuel savings,” he adds.
“Eminox SCRT technology can significantly reduce harmful diesel exhaust gases,” explains Eminox technology manager Dr Phil Bush.
“The additional control of compressed air for transient performance provided by Cobra [electric supercharger] means we can purge diesel particulate filters and other forms of exhaust after-treatment for NOx reduction and, most importantly, without compromising fuel economy.”
“Electric supercharging provides a cost-effective technology for controlling emissions without increasing fuel consumption,” agrees Andy Dickinson, senior manager at CPT responsible for Cobra and its Tigers energy recovery system.
“Black smoke in particular, which is the result of too much fuel and insufficient air, can now be significantly reduced or even completely eradicated,” he adds.
And Dickinson also makes the pint that, while there is no current discussion for Euro 7 emission limits, CO2 reporting is likely – combining engine test results with a whole vehicle approach to fuel consumption.
“NOx emissions regulations are also likely to be further tightened [so] the industry needs to consider the technology that will prepare them to meet these low carbon and ultra-low emission requirements,” he warns.