Capturing and reusing energy generated by machine systems, including the hydraulics, has long been seen as a potential way to improve efficiency. Our top story in today’s newsletter offers an example of how this concept is being employed in construction equipment.

Komatsu’s new PC365LC-11 excavator features an electric swing system which collects and stores energy generated during normal machine operation. Once enough energy is stored, the excavator’s engine can operate in an ultra-low idle state to minimize power draw, and thus fuel consumption.

Besides reducing fuel use, the system also helps optimize hydraulic flow. The system can use its stored energy for swing movements, enabling hydraulic flow to be more readily available for powering the excavator’s work equipment. “The optimization of hydraulic flow enhances digging cycle times, reduces work equipment lag and improves smoothness during multifunction operations to boost overall productivity,” said Daniel Prochaska, Product Specialist at Komatsu.

Is energy recovery a technological development area you’re seeing in fluid power or other machine systems? How is this technology being employed? What challenges exist with energy recovery systems that have yet to be overcome? Email me at [email protected] to offer your thoughts on these or any other topics of interest.

Sara Jensen, Editor, Power & Motion