Matching method with oil injection nozzle by IC engine hitting ridge burning chamber
A matching method and technology of fuel injection nozzles, which are applied to internal combustion piston engines, combustion engines, mechanical equipment, etc., can solve the problems of excessively concentrated circumferential distribution of the mixture, short penetration distance and unevenness of umbrella spray, and achieve the distribution space. The effect of large range, fast spray dispersion and improved emission index
Inactive Publication Date: 2006-05-31
DALIAN UNIV OF TECH
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Problems solved by technology
[0003] In order to solve the problems of too thick mixture and uneven distribution at the point of impact of the porous spray, and the short penetrating distance of the umbrella-shaped spray, the present invention provides a matching method between the collision ridge combustion chamber and the fuel injector, which can make The atomization performance becomes better, the spatial distribution of the spray 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 guide surface to achieve secondary atomization
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[0010] exist figure 1 , 2 In the shown embodiment, in the combustion chamber (5) composed of cylinder head (1), piston (2) and cylinder liner (3), there are 6 spray collision ridges ( 2a), the 6 mist oil jets (6) sprayed out by the injector (4) are just facing the 6 collision ridges (2a), because the collision ridges (2a) have a profile suitable for the spray flow, in the main injection During the upward movement of the piston (2) in the stage, each oil beam falls on the top, middle, and bottom of the collision ridge in turn, part of the spray is rebounded, and part is quickly dispersed along the guiding arcs on both sides of the collision ridge, realizing secondary atomization .
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The present invention relates to a kind of burning chamber of internal combustion engine and belongs to the field of engine mixed gas formation and combustion. The burning chamber has in the inner wall of piston top spraying collision ridges in the number corresponding to the jetted oil beams, and the collision ridges have proper profile for spraying flow, so that one part of the spray is dispersed fast along the guide arc to atomize for the second time while the other part is rebounded. So, homogeneous inflammable mixed gas is formed fast for complete and fast combustion without needing great air eddy current. The engine is improved in exhaust performance obviously while the economic performance and power indexes are raised.
Description
technical field [0001] The invention relates to a matching method between a collision ridge combustion chamber and a fuel injection nozzle of an internal combustion engine, and belongs to the field of organizing engine mixture 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 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 diffuses in the circumferential direction, so that the amount of air entrained close to the wall of the combustion chamber 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, bla...
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IPC IPC(8): F02B23/00F02B55/14
CPCY02T10/12
Inventor 隆武强
Owner DALIAN UNIV OF TECH