Electrohydrostatic actuators (EHAs), widely used in the aerospace industry, are now putting wind beneath the design wings of machine builders by combining the best of electromechanical and electrohydraulic technologies. The EHA converts power from electric to hydraulic to mechanical. An electric servomotor drives a bidirectional, variable-speed pump connected to the two chambers of a hydraulic cylinder. Depending on the flow, the axis extends or retracts...
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