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Injection system for internal combustion engine

A technology of injection system and internal combustion engine, which is applied in the direction of fuel injection device, charging system, mechanical equipment, etc. It can solve the problems of short penetrating distance of umbrella-shaped spray, too thick circumferential distribution of mixed gas, unevenness, etc., and achieve atomization performance Good, fast burning and perfect, uniform circumferential distribution effect

Inactive Publication Date: 2004-09-15
DALIAN UNIV OF TECH
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Problems solved by technology

[0003] In order to solve the problem of too thick mixed gas and uneven distribution in the circumferential direction at the landing point of the porous spray, and the short penetrating distance of the umbrella-shaped spray, the invention provides an internal combustion engine injection system, which can provide good atomization performance, circumferential Spray with uniform distribution and controllable penetration distance

Method used

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  • Injection system for internal combustion engine
  • Injection system for internal combustion engine
  • Injection system for internal combustion engine

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Embodiment Construction

[0012] exist figure 1 In the shown embodiment, the cylinder head (1), the piston (2) and the cylinder liner (3) form an ω-shaped combustion chamber (2a), and the middle part of the cylinder head (1) is equipped with an oil injector (4), and the fuel injection The lower end of the mouth (4) is provided with a guide cone (5). When the nozzle (4) sprays the primary oil beam (4a) to the guide cone (5), the primary oil beam (4a) expands into a more evenly distributed secondary oil beam under the guidance of the guide cone surface (6), the secondary oil beam (6) forms a more homogeneous combustible mixture under the action of the airflow movement in the combustion chamber (2a).

[0013] exist figure 2 The figure shows that the guide cone (5) is welded to the lower end of the fuel injection nozzle (4) and connected as a whole.

[0014] exist image 3 The guide cone (5) with a zigzag surface consisting of a top line (7a) and a bottom line (7b) is shown in .

[0015] exist Figu...

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Abstract

The invention is a kind of combustion spraying system, which belongs to engine mixed gas forming and combustion field. It sets a guiding cone under the oil sprayer, the guiding cone and the oil sprayer is connected together, forms a integral body. When the oil ejected from the multi-hole oil sprayer reaches the cone, under the guiding of cone surface, by using the secondary oil beam, forms pulverization with even distribution, good pulverization, controllable penetration distance, it speeds up the combustion of gas, thus the power, and economic performance and discharging index of engine are improved prominently.

Description

technical field [0001] The invention relates to an injection system of an internal combustion engine, which belongs to the field of formation and combustion of engine mixture. 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. In order to solve this problem, although the umbrella-shaped spray produced has good atomization performance and uniform distribution in the circumferential direction, the penetrating force is not strong. Therefore, the performance is better under medium and low working conditions, and the black smoke increases more under high working conditions because the surrounding air of the combustion chamber cannot be used. Contents of the invention [0003] In order to solve the problem of too thick mixed gas and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M61/14
Inventor 隆武强
Owner DALIAN UNIV OF TECH
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