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Spraying and diffusing combustion system of IC engine

A combustion system, diffusion technology, applied in the direction of internal combustion piston engine, charging system, combustion engine, etc., can solve the problems of uneven spray, short penetration distance of umbrella spray, and excessively concentrated circumferential distribution of the mixture, and achieve the spray dispersion speed. The effect of fast, large distribution space, and light exhaust smoke

Inactive Publication Date: 2006-06-21
DALIAN UNIV OF TECH
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Problems solved by technology

[0003] In order to solve the problem of too thick mixture and uneven distribution of the circular spray at the landing point of the porous spray, and the short penetrating distance of the umbrella-shaped spray, the invention provides a spray diffusion combustion system for an internal combustion engine, which can provide atomization Good performance, uniform spatial distribution, the spray will not accumulate at the landing point, but part of it will be rebounded, and part will be quickly dispersed along the diffusion surface to achieve secondary atomization

Method used

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  • Spraying and diffusing combustion system of IC engine
  • Spraying and diffusing combustion system of IC engine

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Embodiment Construction

[0010] exist figure 1 , 2 , In the shown embodiment, a main combustion chamber is composed of cylinder head 1, cylinder liner 2 and piston 3, and the combustion chamber 4 located on the top of the piston should cooperate with the oil beam of the injector. The spray diffusion surface provided at the closing part is an arc surface, and the oil beam 9 of the injector is directly sprayed to the arc surface.

[0011] exist figure 1 Among them, the spray diffusion surface at the closing of the combustion chamber 4 adopts the circular arc surface 6, and the oil beam 9 of the single-row nozzle injector 5 is directly sprayed to the circular arc surface 6 to form a diffused oil beam 9a with a wider distribution range.

[0012] exist figure 2 Among them, the spray diffusion surface at the mouth of the combustion chamber 4 also adopts an arc surface 6, and a protrusion with a conical surface 7 is also provided in the center of the combustion chamber 4. The oil beam 9 of the upper row...

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Abstract

A spray diffusion-type combustion system for IC engine features that a spray diffusing arc surface is arranged at the diameter-reduced position of combustion chamber for spraying the oil beam from the oil sprayer directly to the arc surface, so generating an oil beam diffused in wide range and quickly forming a relatively uniform gas mixture. Its advantages are quick and full combustion, low oil consumption, high power and less pollution.

Description

technical field [0001] The invention relates to a spray diffusion type combustion system of an internal combustion engine, which belongs to the field of formation and combustion of engine mixed gas. 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 solv...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B23/06F02F3/26F02M61/14
CPCY02T10/12
Inventor 隆武强魏胜利冯立岩杜宝国陈雷
Owner DALIAN UNIV OF TECH
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