A constant volume pop-up window

Abstract

The purpose of the present invention is to propose a constant-volume bomb window with a glass window protection structure to eliminate the problems of uneven force and bump damage on the traditional volume bomb glass window, and at the same time ensure that the impact force can be well buffered and Guarantee the sealing of the bomb. The constant volume bomb window of the present invention comprises a constant volume bomb body, a circular glass window, an O-ring, a first metal washer, a second metal washer, a pressing plate, bolts and nuts; the first metal washer, the second metal washer The structures are the same and are located on both sides of the glass window respectively. The edges of the first metal washer and the second metal washer are provided with an annular boss facing the side of the glass window; bolt holes are provided around the pressure plate, and one end of the bolt is connected to the The body of the volume bomb is fixed, and the other end passes through the bolt hole of the pressure plate and is connected with the nut, so that the O-ring, the first metal gasket, the glass window, and the second metal gasket are pressed and fixed between the body of the volume bomb and the pressure plate .

Description

technical field [0001] The invention belongs to the technical field of engine design and testing, and in particular relates to a constant-volume bomb window in the field of engine fuel injector spray research. Background technique [0002] At present, most of the glass windows of constant-volume bombs do not have a glass window protection structure. During the installation and disassembly process, there will be uneven force and bumps on the glass, which will cause damage to the glass window, affect the mechanical properties of the glass window, and cause the glass window to break. Crack or constant volume bomb leakage. Constant-volume bombs need to be ventilated frequently during use, so that the constant-volume bombs will be impacted by internal and external pressure. However, most of the current constant-volume bombs use a first-level seal. It is difficult to ensure that the constant-volume bomb windows can buffer the impact of the volume bomb. While ensuring sealing. C...

AI Technical Summary

Problems solved by technology

[0005] When the constant volume bomb is impacted by pressure, the O-ring can effectively buffer and solve the problem that the gasket seal cannot be used under high sealing pressure, but at the same time, a large stress concentration will be formed in the O-ring seal, directly It is not feasible to use it on the glass window. In the present invention, the use of two metal gaskets can effectively solve this problem. The stress formed by the O-shaped sealing ring can be evenly transmitted to the glass window through the metal gasket, which effectively protects the glass window safety

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