The Hydraulic Launch Assist™ by Eaton Corp. (www.eaton.com), which displayed the technology in a U.S. Army truck at last March's Society of Automotive Engineers Show in Detroit, has a regenerative braking system that can reportedly improve fuel efficiency by 25 to 35 percent, with similar reductions in emissions. The system works by recovering a portion of the energy wasted as heat by the vehicle's brakes. The recovered energy is held in fluid form in an on-board accumulator until the vehicle accelerates. Eaton says the HLA is fit for vehicles with daily routines of much start-and-stop driving.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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