The new system uses an electrically driven hydraulic pump that provides better steering feel but only runs when the steering wheel is turned. Because there are times when the engine is not running ...

Cummins, in partnership with Liberty Energy, is set to deploy the industry's first variable speed, large displacement natural ...

Cummins Inc. and Liberty Energy Inc. have announced that the industry’s first natural gas, variable-speed, large displacement engine to power Liberty’s digiPrime hydraulic fracturing platform will be ...