Design approach for single piston hydraulic free piston diesel engines |
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Authors: | Wei Wu Shihua Yuan Jibin Hu and Chongbo Jing |
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Affiliation: | (1) ITM, Institute of Applied Environmental Research, Stockholm, Sweden, 10691;(2) IVL, Swedish Environmental Research Institute, Stockholm, Sweden, 10031 |
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Abstract: | The operating characteristics of a single piston hydraulic free piston diesel engine differ significantly from conventional
diesel engines and this provides a theoretical basis for controlling and optimizing the design of the engine. The design of
the proposed engine intended as a power supply for a hydraulic propulsion vehicle is presented. An engine performance forecast
model was generated in AMESim. The performance of the prototype engine is predicted and the predictive results are verified
with experiments. The particular features of the engine are discussed. The dynamic characteristics of the prototype engine
are analyzed and the results indicate the rationality and feasibility of the engine design parameters. The features of the
controllable working frequency and the intermittence output flows are provided. The flow capacity characteristics of the hydraulic
valves on the prototype engine are offered. The methods for starting and the operation after misfire are presented. |
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