CN2700576Y - Combustion device with collision and atomization function of internal combustion engine - Google Patents
Combustion device with collision and atomization function of internal combustion engine Download PDFInfo
- Publication number
- CN2700576Y CN2700576Y CN 200420030203 CN200420030203U CN2700576Y CN 2700576 Y CN2700576 Y CN 2700576Y CN 200420030203 CN200420030203 CN 200420030203 CN 200420030203 U CN200420030203 U CN 200420030203U CN 2700576 Y CN2700576 Y CN 2700576Y
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- Prior art keywords
- collision
- engine
- combustion
- combustion engine
- mixing gas
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- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 238000000889 atomisation Methods 0.000 title abstract description 5
- 238000010304 firing Methods 0.000 claims description 24
- 239000007921 spray Substances 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model relates to a combustion device with collision and atomization function of internal combustion engine, belonging to the field of forming and combusting mixing gas of engine. The central lug boss of the piston of the combustion device is provided with a collision block, the collision block is composed of two parts involving a collision head section and stream squeezing platforms, a fan shape groove is arranged between two stream squeezing platforms, and the one time oil bundle of an oil spray nozzle is passed through the fan shape groove and ejects to the collision head section. Since the collision block causes the one time oil bundle to expand along a collision surface without stacking at falling points, with fast spray divergence speed and large space range of distribution, the one time oil bundle is not close to a combustion chamber, and involved air quantity is increased, and also due to secondary atomization, the particle size of spray becomes thin, correspondingly homogeneous mixing gas can be formed quickly, the quality of the Combustible mixing gas of engine is effectively improved, and combustion is caused to be quick and sufficient without needing large air eddy. The smoke intensity and the discharge index of engine are improved obviously, and simultaneously economical anddynamic indexes are enhanced.
Description
Technical field
The utility model relates to a kind of internal-combustion engine collision atomized firing equipment, belongs to engine mixed gas and forms and combustion field.
Background technique
At present, the excess air coefficient of diesel engine is more easy over-emitting black exhaust, and its main cause is because in a circumferential direction inhomogeneous of porous spraying, and produces the overrich district at the drop point place of spraying, and near the rare spraying center, firing chamber.Part spraying is deposited near the landing point or forms oil film, and another part bounce-back back is to the circumference diffusion, because be close to chamber wall, the air quantity that is involved in is few.Although it is big that these factors have constituted the excess air coefficient of diesel engine, incomplete combustion, black smoke and hydrocarbon discharge capacity height are the main causes of knot charcoal on the chamber wall.In order to address this problem, though the umbrella-shaped spray atomization of generation is good, circumferencial direction is even, and penetrating force is not strong.Therefore, in better performances under the low operating mode, have more than is needed because of firing chamber peripheral air profit under high operating mode, black smoke increases more.
Summary of the invention
For the drop point place mixed gas overrich and the circle distribution that solve porous spraying inhomogeneous, and umbrella-shaped spray runs through apart from short problem, the utility model provides a kind of internal-combustion engine collision atomized firing equipment, this firing unit can provide that atomization is good, space distribution evenly, spraying can not be deposited in the drop point place, but a part is rebounded, a part is disperseed rapidly along collision plane, realizes secondary-atomizing.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of internal-combustion engine collision atomized firing equipment, it mainly contains a firing chamber of being made up of cylinder head, cylinder liner and piston, and oil nozzle forms inflammable mixture to high pressure fuel with vaporific spraying into heavy wool bundle mode in the firing chamber.On the piston central boss, be provided with Impactor, each primary oil beam of oil nozzle all will be directly injected on the corresponding Impactor, in the firing chamber, form equally distributed secondary oil beam, the profile that the oil bundle collision area of each Impactor has, can make at the angle of the center line of secondary oil beam and primary oil beam longitudinally is B, is A at radially the secondary oil beam and the center line angle of primary oil beam.Another scheme is: above-mentioned Impactor is made up of collision head and flow-extruding stage two-part, and the fan groove between per two flow-extruding stages matches with the primary oil beam of oil nozzle.Technique scheme utilizes Impactor to change direction by primary oil beam, formation and firing chamber and the interior better secondary oil beam that cooperates of air-flow of cylinder.The effect of flow-extruding stage is that near the air the oil nozzle is arrived in the zone that oil gas is concentrated in the firing chamber on the Impactor, more helps the formation and the burning of inflammable mixture.
The beneficial effects of the utility model are: because Impactor makes primary oil beam launch along collision plane, can not be deposited in drop point, the spraying distribution rate is fast, and the space range of distribution is big, do not press close to the firing chamber again, involved air amount increases, again because secondary-atomizing makes spray particle diameter attenuate, thereby can form mixed gas relatively uniformly quickly, improved the quality of engines combustible mixed gas effectively, made burning rapidly with perfect, and do not need big air swirl.Under declared working condition, add collision fast after, smoke intensity 1 ripple that descends is permitted value, oil consumption descends more than 5%.Other exhaust indexs of motor also have clear improvement, if the maintenance smoke intensity is the value when not adding Impactor, power can improve about 10%.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is first embodiment's of internal-combustion engine collision atomized firing equipment a longitudinal section tectonic maps.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is second embodiment's of internal-combustion engine collision atomized firing equipment a longitudinal section tectonic maps.
Fig. 4 is the B-B sectional view of Fig. 3.
Among the figure: 1, cylinder head, 2, cylinder liner, 3, piston, 3a, central boss, 4, the firing chamber, 5, oil nozzle, 6, primary oil beam, 6a, secondary oil beam, 7, Impactor, 7a, collision head, 7b, flow-extruding stage.
Embodiment
In the embodiment shown in Fig. 1,2, the firing chamber of forming by cylinder head 1, cylinder liner 2 and piston 34, on the central boss 3a of piston 3, be provided with 6 Impactors 7, after 6 primary oil beams 6 of oil nozzle 5 all are directly injected to and ring on corresponding 6 Impactors 7, in firing chamber 4, form equally distributed 6 secondary oil beam 6a.The profile that the oil bundle collision area of each Impactor 7 has, can make at the center line angle of secondary oil beam 6a and primary oil beam longitudinally is about 140 degree, the center line angle of radially secondary oil beam and primary oil beam be 110 spend about.Secondary oil beam 6a answers favorable current expansion, adjusts the longitudinal angle B of primary oil beam 6 and secondary oil beam 6a center line and included angle A radially according to the concrete condition of motor, so that reach the best distribution effect of secondary oil beam 6a in firing chamber 4.
In another embodiment shown in Fig. 3,4, with a last embodiment's the main distinction of comparing be: the shape of Impactor 7 has had bigger variation, mainly is made up of collision head 7a and flow-extruding stage 7b two parts.The same embodiment of technical requirements of collision head 7a, but be provided with fan groove 7c between two flow-extruding stage 7b, the primary oil beam of oil nozzle 5 passes from fan groove 7c, directive collision head 7a.Flow-extruding stage 7b can arrive in oil gas concentrated area in the firing chamber 4 near the air the oil nozzle 5, more helps the formation of inflammable mixture and improves burning.
Claims (2)
1. an internal-combustion engine collides atomized firing equipment, it mainly contains a firing chamber (4) of being made up of cylinder head (1), cylinder liner (2) and piston (3), in firing chamber (4), be provided with an oil nozzle (5), it is characterized in that: be provided with Impactor (7) on piston (3) central boss (3a), Impactor (7) is on the direction of primary oil beam (6) of oil nozzle (5).
2. according to the described internal-combustion engine collision of claim 1 atomized firing equipment, it is characterized in that: above-mentioned Impactor (7) is made up of collision head (7a) and flow-extruding stage (7b) two parts, the path of the primary oil beam (6) of oil nozzle (5) is provided with the fan groove (7c) that is positioned between two flow-extruding stages (7b), and collision head (7a) is positioned on the direction of primary oil beam (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420030203 CN2700576Y (en) | 2004-01-16 | 2004-01-16 | Combustion device with collision and atomization function of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420030203 CN2700576Y (en) | 2004-01-16 | 2004-01-16 | Combustion device with collision and atomization function of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700576Y true CN2700576Y (en) | 2005-05-18 |
Family
ID=34772095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420030203 Expired - Fee Related CN2700576Y (en) | 2004-01-16 | 2004-01-16 | Combustion device with collision and atomization function of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700576Y (en) |
-
2004
- 2004-01-16 CN CN 200420030203 patent/CN2700576Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |