Cummins Inc. (NYSE: CMI) presented the next generation of ultra-clean engines at the BAUMA CHINA show (Shanghai, November 22-25) designed to meet European Union Stage V emissions regulations commencing in 2019. For construction, mining and materials handling equipment they would also be suitable for China Stage VI.
The key change for Stage V is the move from a particulate emissions weight measurement to a number count of 1012/kW-hr. This will require the use of a diesel particulate filter, effectively eliminate 99.9 percent of all particulate emissions.
“Cummins technology leadership has enabled us to meet the ultra-clean levels of Stage V yet continue to add value to our customers in terms of higher performance with lower running costs,” said Hugh Foden, Executive Director – Cummins Off-Highway Business.
Cummins EGR-free Stage V products from 100 hp to 512 hp (75-382 kW) are highlighted by the X12 engine, featured on stand A68 at the show. It meets the regulations by retaining the Diesel Particulate Filter and Selective Catalytic Reduction (DPF-SCR) aftertreatment system used for Stage IV and Tier 4 Final. For larger, high-output machines up to 512 hp (382 kW), the X12 with DPF-SCR provides an established installation package with ongoing continuity for equipment manufacturers as they transition their machines to Stage V compliance in 2019.
Cummins Stage V F3.8, B4.5, B6.7 and L9 engines, with power capability of 100 hp to 430hp (75-321 kW) use the latest Single Module™aftertreatment technology. It combines DPF, SCR and urea-dosing technologies in one module, providing an up to 50 percent reduction in envelope size and a 30 percent reduction in weight compared with those of Stage IV. The “fit-and-forget system” is capable of removing emissions almost entirely by passive regeneration, with no impact on equipment operation and requiring no operator intervention.
“This solution enables the engines to leap ahead of their Stage IV/Tier 4 Final equivalent engines with over 10 percent more power and almost 20 percent more torque whilst using less fuel,” added Foden.
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Page 2 – Cummins Feature Stage V at Bauma China
Improvements to fuel efficiency will result in the overall fluid cost of the new Stage V engines reducing by 3 percent on average depending on application, compared to those of Stage IV. The engine operating costs will be further reduced with an achievable 1,000-hour oil change interval, twice as long as the current 500 hours.