Testing device and method for measuring relationship between nozzle inside flow and cavitation erosion under multiple working conditions
A technology of internal flow and test device, which is used in measurement devices, fuel injection devices, engine testing, etc., can solve problems that have not yet been developed, and achieve the effects of accelerating nozzle cavitation, improving fuel properties, and rapid cavitation.
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[0041] The invention will be described in further detail below in conjunction with the accompanying drawings.
[0042] The structure of a test device of the present invention that can realize the measurement of the internal flow and cavitation relationship of the porous nozzle of the diesel engine under multiple working conditions is as follows: figure 1 As shown in the figure, P represents the pressure transmission unit, V represents the flow transmission unit, and the thick solid line represents the oil circuit. The test device includes pressure control system, signal test system, injection system and fuel supply system.
[0043] The pressure control system includes a first electromagnetic oil pressure control valve, a second electromagnetic oil pressure control valve, a pressure regulating valve, a pressure limiting valve, a first back pressure chamber with a pressure control device, and a second back pressure chamber with a pressure control device body. The system contro...
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