Cummins unveils new global heavy-duty engine

Cummins has announced a new global heavy-duty engine platform for the trucking industry. Known as the G-series, the new in-line six cylinder engine will be introduced as the ISG11 (10.5 litres) and ISG12 (11.8 litres).

The G-series achieves a remarkably low engine weight of just 862 kg in a compact package while delivering peak outputs of 515 hp and 1700 lb ft of torque.

“We’re currently looking at our options for ADR80-04 (the next round of emissions regulations for Australia) and the ISG12 is one of those options,” says Sean McLean, general manager of automotive products for Cummins South Pacific.

ADR80-04 is not finalised but is anticipated to be introduced in 2017-2018.

The G-series platform has been developed by Cummins’ global technical resources, lead by a US design team, and will be released initially for the Chinese market.

Engines meeting Euro V, Euro VI and US EPA 2017 emissions regulations are in development.

A key design focus for the G-series has been to achieve significant weight savings in order to increase the power-to-weight ratio. A sculptured block retains high rigidity while removing unnecessary mass. The use of composite material for the oil pan and valve cover provides further weight savings.

The G-series incorporates Cummins’ XPI (Xtra-High Pressure Injection) fuel system, derived from the 15-litre ISX. With multiple injection events driven by high-precision Cummins electronic controls, the XPI fuel system contributes to the impressive peak torque of 1700 lb ft and torque rise as high as 60 percent.

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 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. Apart from heavy-duty truck applications, the ISG will also be ideally suited to the bus/coach markets.

Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins employs around 48,000 people worldwide. The company earned $1.48 billion on sales of $17.3 billion in 2013.

Contact: Murray Clifford, Manager – Communications & PR, Cummins South Pacific, +61 419 268 289.