EXPERIMENTAL OBSERVATIONS OF THE FLUID FLOW WITHIN THE L-SHAPED CHECK VALVE

Authors

  • Shinji Kajiwara Kinki University, Department of Mechanical Engineering, 3-4-1 Kowakae, Higashiosaka, Osaka, Japan

Keywords:

hydraulics, pipe flow, experimental analysis, flow visualization, check ball, L-shaped pipe

Abstract

The spring-driven ball-type check valve is one of the most important components of hydraulic systems: it controls the position of the ball and prevents backward flow. To simplify the structure, the spring must be eliminated, and to accomplish this, the flow pattern and the behavior of the check ball in L-shaped pipe must be determined. In this paper, we present a full-scale model of a check ball made of acrylic resin, and we determine the relationship between the initial position of the ball, the diameter of the inflow port, and the kinematic viscosity of oil. When kinematic viscosity is high, the check-flow rate increases in a standard center inflow model, and it is possible to greatly decrease the check-flow rate by shifting the inflow from the center.

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Author Biography

Shinji Kajiwara, Kinki University, Department of Mechanical Engineering, 3-4-1 Kowakae, Higashiosaka, Osaka, Japan

Shinji Kajiwara
Brief Biographical History:
1993- Hitachi Zosen Co., Ltd
2001- Daihatsu Motor Co., Ltd
2005- Kinki University
Membership in Academic Societies:
• The Japan Society of Mechanical Engineers
(JSME)
• The Japan Fluid Power System Society(
JFPS)
• The Society of Automotive Engineers of
Japan(JSAE)

References

Grossschmidt, G. and Harf, M. 2009. COCO-SIM

Object-Oriented Multi-Pole Modelling and Simulation

Environment for Fluid Power Systems, Part 1:

Fundamentals. International Journal of Fluid Power,

August Issue.

Hayase, T., Humpherey, J.A.C. and Greif, R. 1992.

A Consistently Formulated QUICK Scheme for

Fast and Stable Convergence Using Finite-Volume

Iterative Calculation Procedures. J. Comput. Phys.,

Vol. 98 - 1, pp. 108 - 118.

Hong, F. G. Xin, Huayong, Y. and Tsukiji, T. 2002.

Numerical and experimental investigation of cavitating

flow in oil hydraulic ball valve. Proc. of 5th

JFPS International Symposium on Fluid Power,

NARA2002, Vol. 3, pp. 923 - 928.

Tsukiji, T. and Suzuki, Y. 1996. Numerical Simulation

of an Unsteady Axisymmetric Flow in a Poppet

Valve Using the Vortex Method. ESAIM(European

Series in Applied and Industrial Mathematics),

Vol. 1, pp. 415 - 427.

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Published

2018-12-30

How to Cite

Kajiwara, S. (2018). EXPERIMENTAL OBSERVATIONS OF THE FLUID FLOW WITHIN THE L-SHAPED CHECK VALVE. International Journal of Fluid Power, 14(1), 17–23. Retrieved from https://journals.riverpublishers.com/index.php/IJFP/article/view/224

Issue

2013: Vol 14 Iss 1

Section

Original Article