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Collision spray burning system of internal combustion engine

A technology of combustion system and internal combustion engine, which is applied in the direction of internal combustion piston engine, charging system, combustion engine, etc. It can solve the problems of short penetrating distance, unevenness of umbrella-shaped spray, and too thick circular distribution of mixed gas, so as to achieve fast spray dispersion speed , improved emission indicators, and a large spatial range of distribution

Inactive Publication Date: 2006-07-05
DALIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of too thick mixed gas 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 present invention provides a collision atomization combustion system for an internal combustion engine, which can provide good atomization performance, The space distribution 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 collision surface to achieve secondary atomization

Method used

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  • Collision spray burning system of internal combustion engine
  • Collision spray burning system of internal combustion engine
  • Collision spray burning system of internal combustion engine

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Embodiment Construction

[0012] exist figure 1 , 2 In the shown embodiment, the combustion chamber 4 composed of the cylinder head 1, the cylinder liner 2 and the piston 3 is provided with 6 collision blocks 7 on the central boss 3a of the piston 3, and the 6 primary fuel injection nozzles 5 After the jets 6 are directly sprayed onto the corresponding six collision blocks 7, six evenly distributed secondary oil jets 6a are formed in the combustion chamber 4. The profile of the oil beam collision area of ​​each collision block 7 can make the angle between the center line of the secondary oil beam 6a in the longitudinal direction and the primary oil beam be about 140 degrees, and the secondary oil beam in the radial direction and the primary oil beam The angle between the centerlines of the bundles is about 110 degrees. The secondary oil beam 6a should expand along the air flow, and adjust the longitudinal angle B and radial angle A of the centerlines of the primary oil beam 6 and the secondary oil be...

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Abstract

The present invention is collision atomizing burning system for internal combustion engine and belongs to the field of the formation and combustion of mixed gas in internal combustion engine. The collision block makes the primary oil beam develop along the collision plane without deposition in the falling point in high dispersion speed, large distribution space range separated from the combustor, increased involved air amount and fine atomized particle, so as to form homogeneous mixed gas fast, improve the quality of the inflammable gas mixture in internal combustion engine and perfect the combustion without needing great air eddy current. The present invention can improve obviously the fume exhaust index of internal combustion engine and raise the kinetic and economic indexes.

Description

technical field [0001] The invention relates to a collision atomization combustion system of 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 there is an over-concentrated area at the point where the spray falls, and there is little spray near the center of the combustion chamber. . 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 i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B23/00F02M19/03
CPCY02T10/125F02B23/0651F02B23/0669F02B23/0672Y02T10/12
Inventor 隆武强杜宝国田华
Owner DALIAN UNIV OF TECH
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