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This paper presents a design scheme of the new model of the impact pneumatic cylinder, and analyzes its key part such as direction-control valves, piston rod and so on. An experimental model-machine is manufactured and used for the tests on the experimental platform. We obtain the pressure variation in the impact pneumatic cylinder from numerous lifespan tests based on simulated practical working...
Chamber is one of key factors to success for chamber underground infiltration system. As the difference of chamber structure, the capacity of water distribution, passing water and filtration interception for pollutants is different, which is the important factors that impacts hydraulic retention time, microbial life environment and removal rate of CODCr, BOD5, NH4+-N, TP, SS for chamber underground...
The simulation software AMESim was applied to build the hydraulic system model of the upper part of 25T mobile crane. And the characteristics of the multiple-unit valve and the counter-balance valve were simulated and analyzed. Then more research was carried on the luffing system. Based on the simulation model of the boom and key components of the luffing system, the parameters of the luffing system...
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