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Evolution rather than revolution has long been the trend in diesel engine development yet it’s the revolutionary new 1000 hp Cummins engine – aptly named ACE – that will attract considerable discussion at LAND FORCES 2022.

While its most successful ever combat engine, the V903, which powers America’s iconic Bradley Fighting Vehicle, will be centre stage for Cummins at LAND FORCES 2022, ACE – Advanced Combat Engine – won’t be on display but will still be in the spotlight.

ACE is a four-cylinder, two-stroke, 1000 hp opposed-piston diesel engine displacing 14.3 litres and operates with a two-stroke combustion cycle. It has eight pistons, is supercharged as well as turbocharged, and doesn’t need a valve train.

While compactness is one of ACE’s benefits, the engine provides advanced capabilities not currently available: a 50% increase in power density, a 20% reduction in heat rejection, and 13% improved fuel efficiency when compared with today’s best-in-class combat engine.

“We’ll be actively engaging defence OEMs in the Asia Pacific region in the next 12 to 18 months with a view to having ACE installed in a combat vehicle,” said Nathan Usher, Manager of Defence Business for Cummins Asia Pacific.

The US Army’s Ground Vehicle Systems Centre and Achates Power, an opposed piston technology expert, are among Cummins’ key development partners for ACE.

While ACE has initially been developed as a 1000 hp four-cylinder unit, its modular design allows it to be expanded into a family of 3-cylinder and 6-cylinder horizontal and vertical configurations to deliver power ranging from 750 to 1,500 hp.

Visit stand 4A3 at LAND FORCES 2022, to speak with a member of Cummins' defence team and discover more about ACE. 

For more information: Explore Cummins Defence