Constant volume chamber and oil atomizer spraying visual test system with same

Abstract

The invention discloses a constant volume chamber and an oil atomizer spraying visual test system with the same and belongs to the field of oil atomizer spraying characteristic tests. The constant volume chamber comprises a constant volume chamber body which is of a cube shape; the constant volume chamber body is internally provided with through-holes in three axial directions, and the through-holes are perpendicular and crossed, so that an internal cavity is formed; one mouth portion of one of the through-holes is provided with an oil atomizer module, and the other mouth portion of the corresponding through-hole and the mouth portions of the other through-holes are each provided with a visual window module; each visual window module comprises an outer end cover, an inner side cover plate and quartz glass located between the outer end cover and the inner side cover plate; the visual test system comprises the constant volume chamber, and the two opposite sides of the constant volume chamber body are provided with an ultraviolet lamp and a camera correspondingly; and a fluorescent agent which can shine under the irradiation of the ultraviolet lamp is added to the diesel oil in the constant volume chamber. By means of the constant volume chamber and the oil atomizer spraying visual test system with the constant volume chamber, the leakproofness of the constant volume chamber can be improved, and the problem that the subsequent oil beam outline is disturbed by a background light in a visual test can also be solved.

Description

technical field [0001] The invention relates to the field of testing the spray characteristics of fuel injectors, in particular to a constant volume bomb and a fuel injector spray visualization testing system with the constant volume bomb. Background technique [0002] The spray characteristics of the engine fuel injector is one of the important factors affecting the performance of the engine. The spray characteristics of the fuel injector have a great influence on the engine combustion and emission performance. Therefore, the test of the spray characteristics of the fuel injector has a great Design and development are of great significance, constant volume bomb is a common device for testing the spray characteristics of fuel injectors. [0003] At present, the sealing method of the constant volume bomb adopts the sealing method that the end cover presses the quartz glass from the outside. In this way, when the ambient pressure of the constant volume bomb inner cavity is hig...

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Problems solved by technology

[0005] The invention provides a constant volume bomb and a fuel injector spray visualization test system with the constant volume bomb, which can not only improve the sealing performance of the constant volume bomb, but also solve the problem that the background light interferes with the later profile of the oil beam in the visualization test

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