John Deere Power Systems (JDPS) has announced its lineup of engine families have received Stage 5 certification. This includes its variable-speed engine families below 56 kW (75 hp) and above 130 kW (174 hp) as well as its constant speed engine families. The industrial Stage 5 lineup from John Deere offers ratings from 36 to more than 500 kW (48 to more than 670 hp) with displacements of 2.9 L through the upcoming 13.6 L. These engines will be shown by JDPS at bauma in Hall A4 — Stand 139.
The key changes coming with Stage 5 include a 40% reduction in PM from 0.025 to 0.015 g/kWh, the introduction of a particle number limit, extending the scope of engines covered to below 19 kW and above 560 kW, as well as extending the scope of the regulation to constant speed engines such as mobile generator sets.
The 4.5 L equipped with a DPF will now be available with a single or series turbo configuration. The existing non-DPF Tier 4/Stage 4, 4.5 L models will continue to be available as Tier 4 models. This includes the 4.5 L PWL model from 63 to 104 kW and the 4.5 L PSL from 83 to 129 kW.
For the 6.8 L and 9.0 L diesels, software changes support DPF monitoring per Stage 5 and there are no physical component changes. The 13.5 L industrial engine will offer a Tier 4/Stage 5 model, while software changes will again support DPF monitoring per Stage 5. There are also no physical component changes.
Further, Stage 5 aftertreatment technologies from John Deere are optimized for flexible integration and several offer reduced packaging and weight from previous Stage 4 solutions. And because the technologies are built on the same engine platform as current Stage 4 solutions, the need for OEMs to re-engineer due to hardware or mounting changes is reduced, JDPS said.
Stage 5 aftertreatment technologies now offer reduced packaging and weight from the company’s previous Stage 4 solutions. Depending on the engine model, JDPS said there is up to a 39% reduction in canister size and up to a 57% reduction in canister weight.
JDPS said the Stage 5 technologies used on these engines are built upon years of engine and application engineering expertise that includes what the company says is over 1 billion hours of global experience with diesel particulate filter technologies.