Novel fuel spray visual experiment device

Abstract

The invention provides a multi-purpose engine fuel spray visual experiment device which mainly comprises an elastic body, window cover plate groups, a fuel injector position regulating and fixing module and a simulation combustion chamber unit position regulation module. The fuel injector position regulating and fixing module can regulate the position of a fuel injector in a window accurately, guarantees that a visual range can be used fully when fuel injectors of various types are used, and improves usability of the device. The simulation combustion chamber unit position regulation module can research collision information of fuel spray and the wall surface of a combustion chamber and movement condition of the fuel spray in a fuel spray combustion chamber, enables the research to approximate practical working conditions of an engine, and improves reliability of research data. The window cover plate groups can be exchanged with each other and can be exchanged with the fuel injector position regulating and fixing module and the simulation combustion chamber unit position regulation module, so that experiments can be performed in a plurality of directions, and generality of the device is improved.

Description

technical field [0001] The invention provides a multipurpose experimental device for visualization of engine fuel spray, and the invention is especially suitable for the visualization experiment research of various spray forms of liquid and gaseous fuels. Background technique [0002] The fuel atomization process has an important influence on the combustion and emission performance of diesel engines, and has an important supporting role in the research of diesel engine oil-gas mixing, combustion mechanism and low-emission combustion methods. In order to study the diesel engine spray process intuitively and obtain the information of oil-air mixing in the cylinder, researchers often use the research method of spray visualization. [0003] Spray visualization is mainly divided into two research technical routes, one is the use of optical engines, that is, the visualization optical path is processed on the experimental engine. In this way, the spray situation under the actual w...

AI Technical Summary

Problems solved by technology

However, in the current research, most of the spray visualization research based on the constant volume bomb can only obtain the spray information of the free spray, and the experimental research of various collision modes cannot be carried out, and the versatility is poor.

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