Spraying guidance system of internal combustion engine

Abstract

A spray guide system of IC engine features that a spray guide step is made on the inner surface of omega-type combustion chamber. When the pistor is raising up in the primary spray phase, the oil beam is sprayed onto said guide step, which can reflect part of the oil beam and quickly disperse the rest along its guide arc, so realizing secondary atomizing.

Description

technical field [0001] The invention relates to a spray guide system for 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, and an over-concentrated area is generated at the spray point. A part of the spray accumulates near the impact point or forms an oil film, and the other part rebounds and spreads to the circumference, because it is close to the wall of the combustion chamber and the amount of air involved 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 hydrocarbon emissions. In order to solve this problem, alth...

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Problems solved by technology

[0003] In order to solve the problem of too thick mixed gas and uneven circumferential distribution at the landing point of the porous spray, and the short penetrating distance of the umbrella-shaped spray, the invention provides a spray guiding system for an internal combustion engine, which can provide good atomization performance, The space is evenly distributed, 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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