It anticipates one of the significant impacts of Stage V to be the introduction of a particle number (PN) limit for engines in the 19-560kW power band, which will force the use of DPF technology.
John Deere has been employing DPF technology since the introduction of Stage IIIB in 2011, and has amassed more than 150 million DPF hours of in-field use.
“DPF technology is very familiar to us,” explained Martin Ryley, John Deere Power Systems’ manager of marketing support and sale engineering. “And our dealer network is comfortable with it too.”
It means Deere engines will continue to use a combination of existing technologies, including cooled EGR, which is said to contribute to the use of a smaller SCR package.
New catalyst technologies and emissions control calibrations will enable downsizing of after-treatment systems. And the next generation after-treatment solutions from John Deere are expected to deliver greater package flexibility and easier installation, while providing reductions of up to 20% in size and 40% in weight.
