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Low-Emissions High Power Cummins Engines for Hyster

Cummins QSB6.7 Cummins QSB6.7. Photo source Cummins

Hyster launched new generation of forklifts, container handlers and reachstackers with low-emissions power from Cummins engines achieving up to 15 percent improved fuel efficiency. The 16- to 48-tonne capacity Hyster ‘Big Truck’ range features Cummins QSL9 and QSB6.7 engines with an integrated air-intake-to-exhaust aftertreatment system meeting U.S. EPA Tier 4 Interim and EU Stage IIIB regulations taking effect Jan. 1, 2011.

While achieving a major reduction in fuel consumption and a lower carbon footprint, the QSL9- and QSB6.7-powered trucks provide the same lift capacity, lift speed and travel speed as the equivalent Tier 3/Stage IIIA trucks with larger displacement engines.

These major advances in power density and productivity are realized due to Tier 4 technology enhancements, including Cummins Variable Geometry Turbocharger (VGTTM) enabling faster transient response across the rpm band. Cleaner, more efficient combustion is delivered by Cummins Xtra-High Pressure Injection (XPI) on the QSL9 engine and High Pressure Common Rail (HPCR) fuel system on the QSB6.7 engine. Peak power output for the QSL9-powered Hyster trucks is 370 hp (276 kW) and 270 hp (201 kW) for the QSB6.7-powered trucks.

The Cummins Particulate Filter replaces the muffler and removes over 95 percent of all Particulate Matter (PM) emissions from the exhaust. Field test work with Hyster has demonstrated that the filter operates up to 99 percent of the time in passive regeneration mode. On infrequent occasions when active regeneration is required, this does not affect lift truck operation.

Specifically developed for Tier 4 installations, Cummins Direct FlowTM air cleaner reduces installation space claim and provides improved air flow to the engine. Filter element service change intervals can be extended compared to those with typical Tier 3 air cleaners.




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