Differential pressure regulating valve dynamic performance test bench and measurement method thereof

Abstract

The invention provides a differential pressure regulating valve dynamic performance test bench and a measurement method thereof, the differential pressure regulating valve dynamic performance test bench comprises a valve pipeline main body, an oil tank, an air compressor and a high-speed photography acquisition system; the valve pipeline main body comprises a closed loop, a valve inlet pipeline, avalve oil supply pipeline, a valve overflow pipeline and a valve middle cavity inlet pipeline; a third temperature sensor and a third pressure sensor are mounted on the valve inlet pipeline; a fourthpressure sensor and a fourth temperature sensor are mounted on the valve oil supply pipeline; the valve overflow pipeline is used for connecting an overflow outlet and an oil tank inlet, the valve middle cavity inlet pipeline is used for connecting an air compressor and a middle cavity pressure inlet, and the high-speed photography acquisition system is used for acquiring valve core movement conditions in different states. According to the invention, the dynamic characteristic test of the differential pressure regulating valve under a specific working condition can be achieved.

Description

technical field

[0001] The invention relates to the technical field of lubricating oil system valve testing, in particular to a test bench for testing the dynamic performance of a pressure difference valve and a measuring method thereof. Background technique

[0002] The pressure differential valve was first developed by Hu Xinghai, Shenyang Engine Research Institute of China Aviation Development Corporation, and has been authorized as a utility model patent. At present, the lubricating oil supply system of foreign military aero-engines (such as the F110 military engine of the American GE company and the Russian AH-31t ​​engine) all use constant pressure valves to control the flow of the lubricating oil system. The third-generation fighter lubricating oil independently developed by China The oil supply system uses a differential pressure valve to control the circulation of the lubricating oil system. Compared with the constant pressure oil supply method, this control method ...

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