Soft start-up smoothness of Hydro-viscous drive (HVD) set for heavy-duty motor

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The principle and structure of a new kind of soft start-up equipment for heavy-duty motor named Hydro-viscous drive (HVD) set is introduced. Through theoretical analyses on start-up characteristics of the HVD set, the conclusions were drawn that the non-linearity of the pressure performance curve is one key cause of the poor start-up smoothness, and dynamic instability of oil pressure of the electro-hydraulic pilot-operated pressure relief valve, which is used for speed regulating purpose for the HVD set and usually works on low oil pressure and micro flow-rate condition, is another one. So a special speed regulating valve is developed for HVD set, with which the start-up smoothness of HVD set for heavy-duty motor is improved significantly. © 2011 Published by Elsevier Ltd.




Chen, Z., Chen, N., & Sun, Q. (2011). Soft start-up smoothness of Hydro-viscous drive (HVD) set for heavy-duty motor. In Procedia Engineering (Vol. 23, pp. 799–803).

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