Squeeze-flow combustion chamber of internal combustion engine

Abstract

The present invention is flow-extruding combustor for internal combustion engine and belongs to the field of the formation and combustion of mixed gas in internal combustion engine. The flow-extruding stage set inside the combustor concentrates air inside the combustor to the area the sprayed oil beam can reach easily, and the collision stage makes the oil beam develop along the guide arc without deposition in the falling point in high dispersion speed, large distribution space range separated from the combustor and increased involved air amount, so as to form homogeneous mixed gas fast, improve the quality of the inflammable gas mixture in engine and perfect the combustion without needing great air eddy current. The present invention can improve obviously the fume exhaust index of internal combustion engine and raise the kinetic and economic indexes.

Description

technical field [0001] The invention relates to a squish flow combustion chamber of an internal combustion engine, which belongs to the field of engine mixture gas formation and combustion. Background technique [0002] At present, the excess air coefficient of the diesel engine is relatively large but it is easy to emit black smoke. The main reason is that the porous spray is not uniform in the circumferential direction. There is only air in the center of the combustion chamber and there is very little fuel. thick area. A part of the spray accumulates near the impact point or forms an oil film, and the other part rebounds and diffuses in the circumferential direction, so that the amount of air entrained close to the wall of the combustion chamber is small. These factors constitute the main cause of carbon formation on the wall of the combustion chamber despite the large excess air coefficient of the diesel engine, but the incomplete combustion, black smoke and high hydroca...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of too thick mixture and uneven distribution at the landing point of the porous spray, and the short penetrating distance of the umbrella-shaped spray, the invention provides a squish combustion chamber of an internal combustion engine, which can fully exert the squish effect, The air is concentrated in the area where the oil beam reaches, the spray space is evenly distributed, and the atomization performance is good. The spray will not accumulate at the landing point, but part of it will be rebounded, and the part will be quickly dispersed along the guide surface to achieve secondary atomization.

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