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Collision spray vortex chamber of internal combustion engine

A swirl chamber, internal combustion engine technology, applied in the direction of internal combustion piston engine, fuel re-atomization/homogenization, combustion engine, etc., can solve the problems of low economy, soot emission, poor cold start performance, etc. Effect of smoke emission reduction, improved cold startability

Inactive Publication Date: 2004-12-29
DALIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low economy, poor cold start performance and high soot emission under low load of the vortex chamber combustion method, the present invention provides a collision atomization vortex chamber for an internal combustion engine. Under certain conditions, a good combustible mixture can also be formed, thereby improving the economy, cold start and low-load performance of the swirl chamber diesel engine

Method used

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  • Collision spray vortex chamber of internal combustion engine
  • Collision spray vortex chamber of internal combustion engine
  • Collision spray vortex chamber of internal combustion engine

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Embodiment Construction

[0012] exist figure 1 , 2 In the embodiment shown in , 3, 4, a main combustion chamber 4 that is made up of cylinder head 1, cylinder liner 2 and piston 3, is provided with a swirl chamber 8 in cylinder head 1, swirl chamber 8 and main combustion chamber 4 There is a connecting passage 9 convenient to produce a suitable air vortex in the vortex chamber 8 between them, the passage area is 4% of the piston top area, the head of the fuel injection nozzle 5 stretches into the vortex chamber 8, in the vortex chamber 8, A collision platform 7 is provided, and the primary oil beam 6 of the fuel injection nozzle 5 is directly shot at the collision area on the collision platform 7 at a certain angle of inclination. There are three types of surfaces in the collision area: one adopts the concave arc surface 7b structure, the other adopts the plane 7d structure, and the third adopts the convex arc surface (7e) structure. No matter which structure is adopted, the upper transitional arc 7...

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Abstract

The present invention is collision atomizing eddy current chamber for internal combustion engine and belongs to the field of mixed gas formation and combustion in internal combustion engine. The colliding stage set inside the eddy current chamber makes the primary oil beam jetted from the oil nozzle form fast even fine secondary oil beam, and the comprehensive effects of the secondary oil beam and air eddy current inside the eddy current chamber form excellent inflammable gas mixture resulting in fast and perfect combustion. The area of the connecting channel between the main combustor and the eddy current chamber is increased to lower the eddy current strength inside the eddy current chamber. The present invention results in raised economic performance, improved cold starting performance and load adaptability and obvious reduced lower-load carbon smoke exhaust, while maintaining the available compression ratio.

Description

technical field [0001] The invention relates to a collision atomization vortex chamber of an internal combustion engine, which belongs to the field of engine mixture gas formation and combustion. Background technique [0002] At present, the vortex chamber diesel engine mainly relies on strong air movement to ensure good mixture quality and high air utilization rate. Because the intensity of air movement increases with the increase of the speed, it ensures better performance at high speeds, and has the advantages of low requirements on the injection system and is widely used in small high-speed machines. However, due to the strong air movement in the vortex chamber, the heat dissipation loss is relatively large, and the flow loss caused by the throttling effect of the channel is also relatively large. Therefore, the swirl chamber diesel engine has lower thermal efficiency and poor economy than the direct injection combustion chamber. At the same time, the large heat dissip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B19/08F02M29/04
CPCY02T10/125Y02T10/12
Inventor 隆武强
Owner DALIAN UNIV OF TECH
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