@inproceedings{7ad4078830374fd2b3e3b1db26ee559b,
title = "Analysis of dynamic characters of pilot operated spool valve with notches",
abstract = "To get a fast and stable performance of the hydraulic system in automatic transmission, proper notches are designed and selected on the valve spool, to reduce the stationary axial momentum forces of the oil flow through a valve. Solid model and flow field model with different notches are established by CAD software. Dynamic and static characters during the opening process of the valve spool with kinds of notches are analyzed based on CFD flow fields, including the distribution of the velocity field, the distribution of the pressure field, the flow characters and the flow forces. A dynamic model is developed based on the CFD result to simulate the dynamic opening process of valves with and without notches on the spool. The simulation result reveals that the valve spool with notches can generate less flow force and need less response time during the opening process, which indicates the valve spool with notches presented in this paper provides a practical and effective method to improve the performance of hydraulic system in automatic transmission.",
keywords = "CFD, Dynamic response character, Notch, Spool valve",
author = "Hongcai Li and Yan Qi and Wei Wei and Qingdong Yan and Hongchao Jian and Lingxing Kong",
note = "Publisher Copyright: {\textcopyright} 2017 Taylor & Francis Group, London.; International Conference on Power Transmissions, ICPT 2016 ; Conference date: 27-10-2016 Through 30-10-2016",
year = "2016",
doi = "10.1201/9781315386829-35",
language = "English",
isbn = "9781138032675",
series = "Power Transmissions - Proceedings of the International Conference on Power Transmissions, ICPT 2016",
publisher = "CRC Press/Balkema",
pages = "223--229",
editor = "Datong Qin and Yimin Shao",
booktitle = "International Conference on Power Transmissions, ICPT 2016",
}