Self-tightening sealed optical glass window of constant volume bomb

Abstract

The invention relates to a self-tightening sealed optical glass window of a constant volume comb, belonging to the field of the constant volume bomb designing and sealing technology. The optical glass window concretely comprises an end cover, a sleeve, optical glass, a bolt, a first sealing gasket and a second sealing gasket. The end cover comprises an observation hole, a cylindrical ring convex end surface, a screwed hole end surface, an optical glass counter bore seat end surface and an outer edge, wherein the optical glass counter bore seat end surface of the end cover is sequentially provided with the first sealing gasket, the optical glass and the second sealing gasket, and the centers of the four are coaxial; the sleeve is arranged at the other end of the second sealing gasket, and covers the optical glass and the second sealing gasket; a through hole of the sleeve is aligned with the screwed hole of the screwed hole end surface of the end cover; and the optical glass is compacted through bolt fixing so as to form an initial sealing condition. According to the invention, a self-tightening sealed manner is adopted, which has a better sealing effect under an environment with a higher pressure; the mounting time of the optical glass is reduced; the problems that the optical glass is damaged and the sealing gaskets are replaced often are solved; and meanwhile, the sealing performance of the constant volume bomb is remarkably improved.

Description

technical field [0001] The invention relates to a self-tightening and sealing type constant volume bomb optical glass window, which belongs to the technical field of constant volume bomb design and sealing. Background technique [0002] Because of its low cost and the convenience of changing a single parameter to affect the combustion process, constant volume bombs are widely used to simulate the combustion of the combustion chamber when the piston is near the top dead center. The airtightness of constant-volume bombs is the premise of conducting basic research on internal combustion engine combustion, especially in the research of using high-speed data acquisition systems and high-speed cameras to take pictures of the relevant data and images of the combustion of mixtures in constant-volume bombs and the premixing of gas fuels under different background factors. When analyzing the impact of constant volume combustion, it is necessary to ensure that the constant volume bomb ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the unreliable sealing and poor sealing effect in the existing design of the constant volume elastic optical glass window, and the installation of the optical glass is easy to damage, time-consuming installation and frequent disassembly and installation of the sealing gasket lead to the failure of the sealing gasket. In the case of defects such as frequent replacement, a self-tightening and sealing constant-volume elastic optical glass window is proposed

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