A pressure relief and gas collection device for constant volume incendiary bombs

Abstract

The invention relates to a pressure relief and gas collection device for a constant volume incendiary bomb, which has a base, a linear bearing is installed in the base, and an inverted T-shaped thimble push rod is slidably matched with the linear bearing. There is an air storage cavity in the base below the linear bearing, a one-way valve for discharging the gas in the air storage cavity is installed on the side wall of the base, a pressure plate is sleeved on the thimble push rod, and a reset is provided between the pressure plate and the upper end face of the linear bearing. When the external force pushes the thimble push rod downward, the inner side of the lower end of the thimble push rod is separated from the lower end surface of the base. When the external force disappears, the return spring pulls the thimble push rod upward and the inner side of the lower end of the thimble push rod is sealed and closed with the lower end surface of the base. The invention realizes the separation or closure of the inner side of the lower end of the ejector pin and the lower end surface of the base by applying pressure to the ejector pin push rod, controls the pressure maintenance and pressure relief of the combustion chamber of the constant volume incendiary bomb in real time, and releases the pressure after the end of the experiment. At the same time, it can also collect gas for later experimental steps such as gas analysis.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to a pressure relief and gas collection device for constant volume incendiary bombs. Background technique [0002] Constant volume incendiary bomb is an engine combustion simulation test device, which is based on the actual working conditions and working environment of the engine to simulate the specific process of fuel injection and combustion. It is necessary to establish a high temperature and high pressure test environment in the engine combustion chamber by changing the test parameters and test conditions under the same working conditions as the engine to improve the combustion efficiency and energy efficiency of the engine. Safety protection becomes the primary issue. [0003] Therefore, in order to solve the hidden dangers of constant volume incendiary bombs in high temperature and high pressure environment, it is necessary to add pressure relief devices ...

AI Technical Summary

Problems solved by technology

This leads to the limitation of the pressure relief device, which cannot change the unloading pressure in real time and cannot satisfy the regulation of the pressure in the combustion chamber of the constant volume incendiary bomb during the experiment.

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