Rapid compressor simulation experiment device for studying combustion process of internal combustion engine

Abstract

The invention discloses a rapid compressor simulation experiment device for studying the combustion process of an internal combustion engine, which comprises a fuel supply device, a combustion cylinder, a vacuum pump, an impact cylinder and an impact cylinder control assembly, a fuel mixing chamber is arranged on the fuel supply device, a combustion chamber is formed in the combustion cylinder, and the combustion chamber is communicated with the fuel mixing chamber; the combustion cylinder is provided with a laser incidence hole and a visual observation window, an impact piston rod on the impact cylinder is connected with an impact head, and the impact head is connected with a combustion cylinder connecting rod to drive a combustion cylinder piston to extrude the combustion chamber; the impact air cylinder control assembly comprises an inflation header pipe, a front cavity branch pipe, a rear cavity branch pipe, a front cavity electromagnetic valve, a front cavity pressure regulating valve, a rear cavity electromagnetic valve and a rear cavity pressure regulating valve, the front cavity branch pipe is communicated with the front cavity, the rear cavity branch pipe is communicated with the rear cavity, the front cavity electromagnetic valve and the front cavity pressure regulating valve are connected to the front cavity branch pipe, and the rear cavity electromagnetic valve and the rear cavity pressure regulating valve are connected to the rear cavity branch pipe. The inflation header pipe is connected with the front cavity branch pipe and the rear cavity branch pipe to supply air.

Description

technical field [0001] The invention relates to a simulation experiment device for the combustion process of an internal combustion engine, in particular to a fast compressor simulation experiment device for studying the combustion process of an internal combustion engine. Background technique [0002] The experimental study of the combustion process of an internal combustion engine is usually carried out on the engine. However, due to the complex processes of fuel evaporation, diffusion, combustion, and heat transfer in the actual engine, the influencing factors are coupled with each other, and there are changes between cycles. It is very difficult to obtain real and accurate experimental process parameters or to control the combustion conditions between each cycle, and the comparability of experimental results is not strong. In addition, due to the restriction of the intake and exhaust valves of the actual engine, it is also difficult to install the observation instrument....

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Problems solved by technology

However, this method puts forward high requirements on the synchronous movement of the pistons on both sides, and requires very complicated synchronous control measures, which not only increases the investment in equipment, but also reduces the reliability of the experimental device to a certain extent.

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