Cummins has launched the Tier 2 QSK38 and QSK50 drilling power modules. The QSK38 drilling power module is rated 771 kW at 1200 r/min and is integrated with a Cummins-manufactured AVK DSG86M generator at 1200 kVA and 600 volts. The QSK50 provides 1104 kW at 1200 r/min and is coupled with a Cummins-manufactured AVK DSG86L6 generator at 1750 kVA and 600 volts. Both the QSK38 and QSK50 engines share 70% of their parts with their corresponding KV predecessors.

Cummins has also released the KTA19GCSLB gas compression driver for the oil and gas market. The new KTA19GCSLB is cummins’ latest response to the EPA’s new source performance standard (NSPS) recent regulation for stationary spark-ignited engines. Building on the successful performance of Cummins KTA19GC engine, the new KTA19GCSLB will be certifiedto meet the 2008 NSPS regulation of 2.68 g/kWh NOx, 5.36 g/kWh CO and 1.34 g/kWh nonmethane hydrocarbons (NMHC).

The KTA19GCSLB engine is rated at 313 kW at 1800 r/min and is designed for gathering and related gas compression applications. The engine is equipped with an electronic ignition, governor and air-fuel ratio controller, and utilizes many of the same heavyduty internal components such as the block, crankshaft and connecting rods used in Cummins diesel engines.

The latest of Cummins’ Tier 2 highoutput engines, the QSK38,is now in limited production and shipping to customers. Building on the Vee-configuration 12-cylinder, 38 L KV Series, Cummins QSK38 has taken the base engine and enhanced it with the Quantum System electronics and modular common rail fuel system. The QSK38 engine, rated 671 to 1119 kW, provides up to 6197 Nm of torque at 1000 r/min.

The QSK38 shares 70% of its parts with the KV 38 L base engine. In response to customer requests for Tier 2 engines in the 597 to 746 kW output range, Cummins has upgraded the KTA38-M0 to meet Tier 2 emissions levels.

The new K38-M Tier 2 fills a gap in the market for durable,reliable power designed for use in areas covered under U.S. EPA Tier 2 and EU Stage 3a emissions regulations. The K38-M Tier 2 will be manufactured on the same production line as the current KTA38-M0. The engine will initially be offered at 634 kW at 1800 r/min for continuous-duty marine applications.

For rail traction applications, Cummins has introduced a Stage 3a/Tier 2 QSK60-L locomotive engine for mainlinefreight and passenger locomotives. The engine has an output range from 1492 to 1940 kW and using leading edge technology, the 60 L unit is capable of meeting the latest EPA Stage 3a locomotive emissions regulations that take effect on Jan. 1, 2009, according to Cummins.

Product Milestones

Cummins has reported that its Tier 2 QSK60 mining engine is low offering ratings as high as 2014 kW in a singlestage turbocharger configuration. Previously, ratings above 1865 kW were only available in a two-stage configuration.

The new 2014 kW QSK60 engine is available for mining applications up to 3000 m. Its compact, lowerweight installation is achieved with the equivalent levels of performance and durability as the higher rated two-stage engine. The QSK60 engine, now rated from 1389 to 2014 kW, provides up to 10 628 Nm of torque at 1500 r/min.

Alternative Fuels

A Cummins-powered train is the first in the U.K. to run on B20 biodiesel fuel in a trial program initiated by Virgin Rail Group Ltd. The Virgin Voyager train was put into operation on scheduled passenger service to begin evaluating the use of biodiesel in high-speed rail applications. The train is lowered by four Cummins QSK19 underfloor diesel engines, one in each car, with a total installed power of 2238 kW.

The Virgin Voyager evaluation program will determine the suitability of biodiesel fuel characteristics for intensive train operations. The B20 biodiesel has been specially produced by Greenergy for rail applications as a mixture of 20% B100 (pure biodiesel)and 80% ultra-low sulphur diesel (ULSD). Each element complies with the relevant standard; B100 to BS EN14214 biodiesel standard and ULSD to BS EN590 diesel standard.

The B100 pure biodiesel element of the blend is derived from rapeseed, soybean and palm-based crops, which as a renewable product helps to reduce greenhouse gas emissions.

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