CUMMINS will be using InnoTrans to exhibit its Stage 3A/Tier 2 QSK60-L locomotive engine for the first time.

Developed for arduous main line freight and passenger loco applications, it has an output range from 1492 to 1940 kW. Available from January 2007, the 60litre engine meets the US Environmental Protection Agency’s Tier 2 emissions requirements, and is capable of meeting Stage 3A regulations taking effect in 2009.

Research by Cummins has brought a 30% reduction in NOx emission and a 65% cut in particulates from Tier 1 levels. The addition of after-treatment will take the engines through to Tier 4 in 2011.

The proprietary power cylinder design uses ferrous cast ductile single-piece cast iron pistons for even expansion and contraction during thermal cycles, with piston cooling nozzles to provide a high oil flow and ensure reliability on intensively-used locos.

Also on show will be the latest version of the QSK19-R engine for DMUs. A modular common rail fuel system and modern combustion technology cuts the emissions while retaining its 485 to 560 kW output (RG 1.06 p18).

CAPTION: ’The success of the 60 litre engine has already been demonstrated in main line locomotive installations in Namibia’, according to Steve Dodman, Locomotive Engine Business Leader

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