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Cummins unveils new heavy-duty engine platform

Posted on September 16, 2013

Cummins Inc. unveiled a new global heavy-duty engine platform it developed to complement its existing global product offering.

The G Series platform is an in-line six cylinder engine and will be available in 10.5- and 11.8-liter displacements to meet a broad variety of on-highway and off-highway global market requirements and emissions standards. Initial engines are designed to run on diesel fuel.

Design and development of the engine has been led by a team in the U.S. and supported by global technical and marketing resources with deep knowledge of local market and customer needs. This global design approach utilizes the latest advanced technologies to develop an adaptive architecture, with each engine designed to meet unique performance and cost-of-ownership expectations for its target market and region.

The G Series incorporates Cummins Xtra-High Pressure Injection (XPI) fuel system, derived from the larger and more powerful X Series engine. With multiple injection events driven by high-precision Cummins electronic controls, the XPI fuel system contributes to a very impressive peak torque for the G Series of 1700 lb-ft., together with a torque rise as high as 60% available. These attributes enable the G Series to deliver exceptionally fast response to increasing load factors from low engine rpm.

The G Series offers fuel efficiency through parasitic reducing technology without variable-flow pumps that add unnecessary cost and reduce reliability. Its Single Cam In Head (SCIH) design with roller valve train and high-efficiency intake ports continues the design theme of minimum complexity and maximum efficiency. The resulting low-weight design allows more payload to be delivered while requiring less energy to manufacture than competitive designs.

For on-highway markets, the G Series Heavy-Duty engine platform will be introduced as the Cummins ISG11 and Cummins ISG12. These engines offer a power range from 290 hp to 512 hp (216-382 kW) in a compact and lightweight package. Engines will be available to meet global variations in emissions requirements.

At launch in 2014, engines will meet Euro III, Euro IV and China NS4 emissions requirements. Engines for Euro V, Euro VI and U.S. Environmental Protection Agency are also in development.

The ISG11 and ISG12 are ideal power solutions for Heavy-Duty trucks in long-haul, regional-haul and vocational service, as well as buses, motor coaches, fire trucks and recreational vehicles.

The G Series will initially be manufactured at the Beijing Foton Cummins Engine Co., serving customers on a global basis. Production will start during the first half of 2014.

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