Cummins’ higher powered ISL engine

In Hall 5A booth H721 at Eurosatory this week, Cummins Inc. features a higher powered ISL engine, the Advanced Medium Mobile Power Sources (AMMPS) rugged mobile generator and future diesel and electric concepts.

“The trend in the defence industry is moving to higher power-to-weight ratios from equipment drivelines to carry heavier loads; more people, more equipment and more armoury on the vehicle,” Regina Barringer, General Manager for Cummins Rail and Defense, said. “Additionally, we see the need for more operational flexibility, and having rugged power generation capability that is easily accessible. At Cummins, we are continuing to develop technologies that support this now, and in the future.”

Cummins showcases the lightweight, compact and fuel-efficient ISL9 engine, which has a peak power output of 540 horsepower for fast response military vehicles. The ISL9 offers distinct advantages to global vehicle manufacturers, with a simplified engine architecture reducing complexity for ease of installation. For operators, it provides higher performance with faster response, low operating costs, excellent reliability and high availability.

“Cummins has increased the ISL9’s capability from 400 horsepower to 536 horsepower for defence applications, an increase of 34 percent. We have achieved this by optimising key performance parts, including the Cummins HE500 Variable Geometry Turbocharger to boost power and response,” continued Mrs. Barringer.

Alongside the ISL9, the 10kW AMMPS power generation is on display.  With a rugged design, AMMPS units are deployed to support military operations, powering contingency and forward operating bases, command outposts, and command and control centers. The AMMPS Advanced Digital Control System provides microgrid capability for increased fuel savings, benefitting troops on active duty around the world.  As an industry leader, Cummins offers a wide range of diesel and gas generator models for military use.

Looking to the future, a model of the Advanced Combat Engine (ACE) makes its debut at the show. A powerful, advanced technology diesel engine, currently under development for combat vehicles by Cummins Corporate Research and Technology, supported with Achates Power. 

Using an opposed modular piston design, the ACE unit is expected to deliver up to 1,000 horsepower from a four cylinder version and 1,500 horsepower from a six cylinder version.

“ACE will be a key component for the next generation of power for armed forces vehicles, and support the US Army’s 30 year strategy to modernise tactical and combat vehicles,” added Mrs. Barringer.

In addition, Cummins staff is on hand to discuss the latest electric product released at the recent Intermat show in Paris. It is expected the Range Extended Electric Vehicle (REEV) driveline will be suitable for a wide range of military equipment in the near future, offering a balance of battery power with a compact engine-generator. The system uses overnight charging to power the battery pack, allowing up to two hours of operation per 35kWh battery enclosure. The batteries are modular and available in multiples, depending on the need for electric only operation.  When the battery drops below 30%, the Cummins F3.8 powered generator recharges it.

The generator uses a high-efficiency traction motor which provides continuous torque of 1,850Nm, eliminating the need for gear shifting and dramatically reducing powertrain noise. An instant peak torque boost up to 3,400Nm is available when the vehicle hits challenging conditions.

“Cummins is investing U$500 million in electric powertrain development. We will have full battery and range extending capability in our product portfolio alongside our clean diesel and natural gas engines. The REEV is the most suitable for the majority of military vehicles, where setting up a charging infrastructure would be challenging. Our plan is to release the REEV for bus applications in 2020, industrial in 2022, with military versions following in 2024,” Mrs. Barringer concluded.

Eurosatory 2018 is showcasing the future of innovation across the land forces sector and MONCh (Moench Online News Channel at www.monch.com) brings together key developments from the show. For more information please see MILITARY TECHNOLOGY #06/2018, available at the show in hall 6, stand #D198.; and