The JCB Ecomax T4 4.4 litre engine, part of the Dieselmax range, is currently undergoing full in-field testing before entering production in 2012.
It marks one of the biggest investments in the company’s history to develop the off-highway sector’s cleanest engine in readiness for incoming emissions legislation.
According to JCB the new engine will offer reduced fuel consumption, reduced cost of ownership, better reliability and no compromise of machine design.
JCB director of engine programmes Alan Tolley said: "Meeting the Tier 4 emissions legislation is a massive challenge but also has a huge opportunity for innovation; an opportunity to come up with a solution that has real advantages for our customers. We believe the result is not only the off highway sector’s cleanest engine, but a first for our industry.
"Our strategy has been to meet Tier 4 interim emission standards without a Diesel Particulate Filter but also to achieve this without any exhaust after-treatment. We have focussed our research and development efforts on a high efficiency combustion system; we have made sure we don’t create the pollutants to start with rather than try and deal with them later. This approach also gives us very low fuel consumption levels."
Since JCB manufacturers both engines and machines, it offers customers a more integrated product, he said.
So far testing has shown a 5-10% fuel consumption improvement compared to the previous generation.