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Spraying and diffusing combustion system of IC engine

A combustion system and diffusion technology, applied in the direction of internal combustion piston engine, charging system, combustion engine, etc., can solve the problems of unevenness, short penetrating distance of umbrella-shaped spray, too thick circular distribution of mixed gas, etc., and achieve spray dispersion speed Fast, large space distribution, light exhaust smoke effect

Inactive Publication Date: 2005-05-11
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] In the embodiment shown in Fig. 1, 2, a main combustion chamber is formed by the cylinder head (1), cylinder liner (2) and piston (3), and the combustion block (4) that is located on the top of the piston will be connected with the injector. The oil beams of the oil injector are matched, and the spray diffusion surface arranged at the closing position of the combustion choke (4) is an arc surface, and the oil beam (9) of the oil injector is directly sprayed to the arc surface.

[0011] In Fig. 1, the spray diffusion surface at the mouth of the combustion chamber (4) adopts a circular arc surface (6), and the oil beam (9) of the single-row orifice injector (5) is directly sprayed to the circular arc surface (6), A diffused oil beam (9a) with a wider distribution is formed.

[0012] exist figure 2 Among them, the spray diffusion surface at the mouth of the combustion choke (4) also adopts an arc surface (6), and a protrusion with a conical surface (7) is also provided at...

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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...

Claims

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Application Information

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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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