Research on the influence of the volume of oil in front of the direct operated pressure relief valve on its transient performances

Dimitrov, Sasko and Weiler, Dennis and Petrov, Simeon (2023) Research on the influence of the volume of oil in front of the direct operated pressure relief valve on its transient performances. Balkan Journal of Applied Mathematics and Informatics, 6 (2). pp. 43-49. ISSN ISSN 2545-4803 on line

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Abstract

The dynamic characteristics determine variations of the inlet pressure in front of the valve in function of the flow through the valve in time. In any hydraulic system, at valve inlet port there is some volume of compressible oil which influences the quality of the transient process. When switching the directional control valve in the hydraulic system with direct-operated pressure relief valves, a transient process occurs in which, depending on the amount of oil in front of the valve, it is possible for the pressure to reach values many times higher than the set value. This causes the system to be overloaded with undesirable consequences. This paper examines experimentally and theoretically the influence of the volume of oil in front of the valve on its transient performances. It is presented that when there is a low amount of oil in front of the valve, it reacts faster, but the system is significantly overloaded. When there is a higher amount of oil in front of the valve, it reacts more slowly and overloads the system less above the preset value of the pressure.

Item Type:	Article
Subjects:	Engineering and Technology > Mechanical engineering
Divisions:	Faculty of Mechanical Engineering
Depositing User:	Sasko Dimitrov
Date Deposited:	05 Feb 2024 12:39
Last Modified:	05 Feb 2024 12:39
URI:	https://eprints.ugd.edu.mk/id/eprint/33412

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