Development of High Speed Hydraulic Switching Valves

Fast switching valves for high flow rates are a necessity to implement energy efficient switching techniques for hydraulic drives. Switching frequencies of 1 kHz and flow rates of up to 250 l/min are intended. As a first stage fluid flow in valves during rapid changes of the opening of the valve is simulated by analyticaal, experimental, and CFD methods. Results of these investigations should provide the basis for a systematic design of switching principles appropriate for high frequencies and low oil cleanlyness.