CN1554861A - Burning chamber of IC engine - Google Patents
Burning chamber of IC engine Download PDFInfo
- Publication number
- CN1554861A CN1554861A CNA2003101194824A CN200310119482A CN1554861A CN 1554861 A CN1554861 A CN 1554861A CN A2003101194824 A CNA2003101194824 A CN A2003101194824A CN 200310119482 A CN200310119482 A CN 200310119482A CN 1554861 A CN1554861 A CN 1554861A
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- Prior art keywords
- oil
- spraying
- collision
- ridge
- engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
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
The present invention relates to a kind of combustion chambers of internal combustion engines, belong to engine mixed gas and form 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.A part of spraying is deposited near the landing point or forms oil film, and another part bounce-back back is to the circumferencial direction diffusion, and it is few to be close to the air quantity that chamber wall is involved in.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 invention provides a kind of combustion chambers of internal combustion engines, the space distribution that this firing chamber can make atomization improve, spray is even, spraying can not be deposited in the drop point place, but a part is rebounded, a part is disperseed rapidly along guide surface, realizes secondary-atomizing.
The technical solution adopted for the present invention to solve the technical problems is: oil nozzle sprays into high pressure fuel in the firing chamber of being made up of cylinder head, cylinder liner and piston with vaporific in heavy wool bundle mode, inwall in the firing chamber is provided with spraying collision ridge, the vaporific oily Shu Chaoxiang collision ridge of oil nozzle ejection.On collision ridge, be provided with and be suitable for the mobile profile of spraying, on the main jet piston in oil stage, move past in the journey, oil Shu Yici falls within top, middle part, the below of collision ridge, and a spraying part is rebounded, and the guiding arc of a part along the collision ridge both sides disperses to realize secondary-atomizing rapidly.Because the speed that spraying disperses is fast, it is big that the space range of distribution becomes, and do not press close to chamber wall again, and involved air amount increases, thereby can form mixed gas relatively uniformly quickly.The quantity of above-mentioned collision ridge equates with the oil bundle number of oil nozzle, and both positions are also corresponding.
The invention has the beneficial effects as follows: because collision ridge makes the oil bundle launch along the guiding arc, can not be deposited in drop point, the spraying distribution rate is fast, the space range that distributes is big, does not press close to the firing chamber again, and involved air amount increases, thereby can form mixed gas relatively uniformly quickly, greatly improved the quality of engines combustible mixed gas, made burning rapidly with perfect, and do not need big air swirl.Under declared working condition, add collision ridge 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 collision ridge, power can improve about 10%.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is combustion chambers of internal combustion engines embodiment's a longitudinal section tectonic maps.
Fig. 2 is the firing chamber and the figure that cooperates of oil bundle.
Among the figure: 1, cylinder head, 2, piston, 2a, collision ridge, 3, cylinder liner, 4, oil nozzle, 5, the firing chamber, 6, the oil bundle.
Embodiment
At Fig. 1, among the embodiment shown in 2, by cylinder head (1), in the firing chamber (5) that piston (2) and cylinder liner (3) are formed, the inwall of (5) is provided with 6 spraying collision ridges (2a) in the firing chamber, 6 vaporific oil bundles (6) of oil nozzle (4) ejection are just in time towards 6 collision ridges (2a), because being provided with, collision ridge (2a) is fit to the profile that spraying is flowed, on the main jet piston (2) in oil stage, move past in the journey, each oily Shu Yici falls within the top of collision ridge, the middle part, the below, a spraying part is rebounded, the guiding arc of a part along the collision ridge both sides disperses rapidly, realized secondary-atomizing.
Claims (2)
1. combustion chambers of internal combustion engines, oil nozzle (4) sprays into high pressure fuel by cylinder head (1) with vaporific in heavy wool bundle mode, in the firing chamber (5) that piston (2) and cylinder liner (3) are formed, it is characterized in that: the inwall of (5) is provided with spraying collision ridge (2a) in the firing chamber, the vaporific oil bundle (6) of oil nozzle (4) ejection is towards collision ridge (2a), on collision ridge (2a), be provided with and be suitable for the mobile profile of spraying, on the main jet piston in oil stage, move past in the journey, oil bundle (6) falls within the top of collision ridge (2a) successively, the middle part, the below, a spraying part is rebounded, a part is disperseed rapidly along the both sides of collision ridge (2a) guiding arc, realizes secondary-atomizing.
2. according to the described combustion chambers of internal combustion engines of claim 1, it is characterized in that: the quantity of above-mentioned collision ridge (2a) equates with the oil bundle number of oil nozzle (4), and both positions are also corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101194824A CN1258036C (en) | 2003-12-23 | 2003-12-23 | Burning chamber of IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101194824A CN1258036C (en) | 2003-12-23 | 2003-12-23 | Burning chamber of IC engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1554861A true CN1554861A (en) | 2004-12-15 |
| CN1258036C CN1258036C (en) | 2006-05-31 |
Family
ID=34338252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101194824A Expired - Fee Related CN1258036C (en) | 2003-12-23 | 2003-12-23 | Burning chamber of IC engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1258036C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675506A (en) * | 2014-12-31 | 2015-06-03 | 大连理工大学 | Diesel engine multi-point distribution type guide bench combustion chamber |
| CN114183235A (en) * | 2022-02-14 | 2022-03-15 | 潍柴动力股份有限公司 | Internal combustion engine |
-
2003
- 2003-12-23 CN CNB2003101194824A patent/CN1258036C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675506A (en) * | 2014-12-31 | 2015-06-03 | 大连理工大学 | Diesel engine multi-point distribution type guide bench combustion chamber |
| CN114183235A (en) * | 2022-02-14 | 2022-03-15 | 潍柴动力股份有限公司 | Internal combustion engine |
| CN114183235B (en) * | 2022-02-14 | 2022-04-19 | 潍柴动力股份有限公司 | Internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1258036C (en) | 2006-05-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |