Matching method with oil injection nozzle by IC engine hitting ridge burning chamber

Abstract

The present invention relates to a kind of burning chamber of internal combustion engine and belongs to the field of engine mixed gas formation and combustion. The burning chamber has in the inner wall of piston top spraying collision ridges in the number corresponding to the jetted oil beams, and the collision ridges have proper profile for spraying flow, so that one part of the spray is dispersed fast along the guide arc to atomize for the second time while the other part is rebounded. So, homogeneous inflammable mixed gas is formed fast for complete and fast combustion without needing great air eddy current. The engine is improved in exhaust performance obviously while the economic performance and power indexes are raised.

Description

technical field [0001] The invention relates to a matching method between a collision ridge combustion chamber and a fuel injection nozzle of an internal combustion engine, and belongs to the field of organizing engine mixture 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 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, bla...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of too thick mixture and uneven distribution at the point of impact of the porous spray, and the short penetrating distance of the umbrella-shaped spray, the present invention provides a matching method between the collision ridge combustion chamber and the fuel injector, which can make The atomization performance becomes better, the spatial distribution of the spray is uniform, 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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