Title: The influence of pressure difference at the valve port of hydraulic throttle cone valve on the luminescence of hydraulic oil

Authors: Jihai Jiang; Bosong Duan; Jian Zhang; Mingyang Che; Zhidong Hu

Addresses: Institute of Fluid Transmission and Control, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China ' Institute of Fluid Transmission and Control, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China ' Institute of Fluid Transmission and Control, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China ' Institute of Fluid Transmission and Control, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China ' Institute of Engineering and Technology, Northeast Forestry University, Harbin 150040, Heilongjiang, China

Abstract: In the hydraulic system, when the hydraulic oil flows through the valve port and the pressure difference between the front and back of the valve port is large, a large number of bubbles will be produced, and the phenomenon of luminescence of hydraulic oil may even occur. In this paper, the influence of the pressure difference before and after the port of the hydraulic throttle cone valve on the luminescence of hydraulic oil is studied using simulation analysis and experiments. It is found that, with the increase of pressure difference, the luminescence phenomenon of hydraulic oil becomes more obvious.

Keywords: hydraulic oil; throttle cone valve port; luminescence; bubble; pressure difference.

DOI: 10.1504/IJHM.2019.100771

International Journal of Hydromechatronics, 2019 Vol.2 No.2, pp.140 - 156

Received: 20 Mar 2019
Accepted: 31 Mar 2019
Published online: 17 Jul 2019 *

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