is being converted to a hydraulic hybrid using a system developed by Hybra-Drive. We introduced them to you in '07 and now that they're making some news, we wanted to bring them back. Their set-up ...

A newly improved hydraulic drive system includes a cooler to the open loop hydraulic system that keeps the overall hydraulic system temperature down, significantly improving performance and the ...

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 ...