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JCB engines ready for Stage V emissions standard

JCB 4.8-litre EU Stage V diesel engine

Combination of DOC, DPF and SCR technology being used to meet latest European emission regulations

JCB Power Systems will use a combination of next-generation particulate control technology, incorporating a diesel oxidation catalyst (DOC), integrated diesel particulates filter (DPF) and selective catalytic reduction (SCR) to meet European Stage V emissions regulations.

The new standards came into force on 1 January 2019 for engines below 56kW (75hp) and above 130kW (174hp). They take effect a year later, on 1 January 2020 for engines in the 56–129kW (75–174hp) range.

The EU-only standard calls for a further reduction in particulate matter and also broadens the regulations to include a much wider range of engine power outputs and applications. EU Stage V encompasses other fuel types, such as natural gas, and more static machinery such as generators.

JCB start from a position of strength, having developed highly efficient combustion technologies within their engine ranges. Moreover, all Stage V engines have been designed to fit beneath existing engine canopies, so they will not require redesign of machinery to accommodate the additional hardware and will not negatively impact visibility from the cab.

Alan Tolley, JCB’s group director of engines, said: ‘JCB engines have low-emission, high-efficiency combustion technology developed for Stage IIIB and Tier 4, which means we started development for Stage V from a very good position.

‘Our particulate control technology features low particulate combustion, an oxidation catalyst, particulates filter and integrated engine and filter regeneration control system.

‘It’s a completely integrated solution that’s highly reliable, highly effective and invisible to the customer as it is installed within our existing machines’ engine bays, and, in normal use, no operator intervention or additional service attention is required.’

JCB’s 3-litre Dieselmax engine is rated at 55kW with a class-leading maximum torque of 440Nm. Powering JCB’s backhoe loaders, Loadall telescopic handlers and other mid-range machines, it features a compact after-treatment system comprising JCB’s particulate control technology and auto-stop, which shuts down the engine after a period of idling to minimize fuel consumption. 

The Stage V version of the 4.8-litre Ecomax engine, which powers JCB Loadall telescopic handlers, mid-range wheel loaders and the larger TM telescopic wheel loaders, produces 81–129kW (108–174hp) and boasts peak torque outputs from 516Nm to 690Nm.

It features the compact after-treatment system comprising JCB’s particulate control technology with an SCR urea-injection system for NOx reduction, and also benefits from the adoption of a wastegate turbocharger and auto-stop technology that shuts down the engine after a period of idling to minimize fuel consumption.

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