Experimental Observations of the Fluid Flow within the L-Shaped Check Valve

Kajiwara, Shinji

doi:10.1080/14399776.2013.10781065

Cited by 2 publications

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“…Cylinders with adjustable cushions have needle valves (4) mounted onto the heads such that the fluid flow leaving the cushion can be adjusted and the amount of deceleration can be tuned to a particular application. The behavior of the check ball of a hydraulic check valve with L-shaped piping has been experimentally observed, and the relationship between the check flow rate and the viscosity [10], the relationship between the ball and the inlet position [11], and so on, have been elucidated. However, the flow of the working fluid in a hydraulic check valve with L-shaped piping and the effect of the flow on the behavior of the check valve have not been clarified to date.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Magnus Force on Check Ball Behavior in a Hydraulic L Shaped Pipe

Kajiwara

2021

Fluids

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This paper presents the effect of the rotational speed of a check ball in a hydraulic L-tube on the translational motion caused by the Magnus effect. A spring-driven ball check valve is one of the most important components of a hydraulic system and controls the position of the ball to prevent backflow. To simplify the structure, the springs must be eliminated. To this end, it is necessary to clarify the flow pattern of the check ball in an L-shaped pipe and the rotational and translational behaviors of the ball. In this study, the position of the inlet pipe and the availability of the check were determined using Computer Aided Engineering (CAE) tools. By moving the position of the inlet pipe from the top to the bottom of the housing, the direction of the rotation of the ball was reversed, and the behavior changed significantly. It was found that the Magnus force, which causes the ball to levitate by rotating it in the opposite direction to the flow, acts to shorten the floating time.

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Section: Introductionmentioning

confidence: 99%