An Optical Fast Compressor Combustion Cylinder Capable of Shooting by Schlieren Method

Abstract

The invention discloses an optical fast compressor combustion cylinder capable of shooting by the schlieren method. The front and rear end surfaces of the combustion cylinder main body run through the combustion chamber cavity. The front and rear ends of the combustion chamber cavity are respectively provided with window positioning cavities. Cylinder pressure sensor mounting holes and exhaust holes are set, spark plug mounting holes and air intake holes are set on the upper surface, combustion cylinder positioning cavity is set on the right end surface, and a rectangular channel is set between the combustion cylinder positioning cavity and the combustion chamber cavity from left to right , conical transition section and compression section; the front and rear ends of the combustion chamber cavity are respectively equipped with quartz glass, and the quartz glass is fixed through the glass baffle; there is a combustion chamber between the two quartz glasses, and the combustion chamber and the cylinder pressure sensor installation hole, The exhaust hole, the rectangular passage and the spark plug installation hole are connected, and the rectangular passage is connected with the air intake hole. The present invention mainly changes the direction of the axis of the combustion chamber so that it is perpendicular to the moving direction of the piston, so as to meet the requirements of the optical path arrangement of the schlieren method.

Description

technical field [0001] The invention belongs to the design field of a fast compressor experiment platform, and relates to a combustion cylinder applied to an optical fast compressor experiment platform, and more specifically relates to a combustion cylinder of an optical fast compressor that can realize schlieren shooting. Background technique [0002] As one of the most important power machines for human activities, the engine consumes a lot of energy and causes serious environmental pollution. In order to further improve the power, economy and emissions of internal combustion engines, engine downsizing has become a mainstream technical means. However, engine knock has become a bottleneck limiting further enhancement of the engine. Knocking will lead to a decline in the thermal efficiency of gasoline engines, accompanied by strong fluctuations in cylinder pressure, and even cause irreversible damage to the engine in severe cases. Therefore, it is urgent to carry out in-de...

AI Technical Summary

Problems solved by technology

In order to realize the visual research on the interaction between the flame and the shock wave by using the fast compressor, it is necessary to use the schlieren method to photograph the combustion process in the cylinder, but the optical windows of the existing fast compressor platform are mostly arranged on the top of the combustion cylinder and the piston In the plane where the movement direction is vertical, it is mainly used to realize direct shooting, but it is difficult to adapt to the optical path arrangement of the schlieren method

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