CN1320262C - Spraying guidance system of internal combustion engine - Google Patents
Spraying guidance system of internal combustion engine Download PDFInfo
- Publication number
- CN1320262C CN1320262C CNB031437907A CN03143790A CN1320262C CN 1320262 C CN1320262 C CN 1320262C CN B031437907 A CNB031437907 A CN B031437907A CN 03143790 A CN03143790 A CN 03143790A CN 1320262 C CN1320262 C CN 1320262C
- Authority
- CN
- China
- Prior art keywords
- guide table
- spraying
- oil
- combustion engine
- guidance system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000010304 firing Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000000779 smoke Substances 0.000 description 4
- 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
- 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
Images
Classifications
-
- 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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a spray guide system for an internal combustion engine, which belongs to the field of the formation and the combustion of the mixed gas of an engine. For the spray guide system, a spray guide table is arranged on the inner wall of an omega-shaped combustion chamber. In the process that a piston moves upwards at the main spraying stage of an engine, oil beams can be sprayed on the guide table. Because the guide table is provided with a shaped surface suitable for guiding spray to flow. One part of the oil beams bounce back, the other part of the oil beams are quickly dispersed along a guide arc; thus, the secondary atomization can be realized, the dispersion speed of spray is high, the distribution range is large, and quantity of involved air is numerous; the quality of mixed gas is improved, and the economy, the power performance and the discharge index of the engine can be obviously improved.
Description
Technical field
The present invention relates to a kind of internal-combustion engine spraying guidance system, 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.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 invention provides a kind of internal-combustion engine spraying guidance system, this internal-combustion engine spraying guidance system 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 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 the spraying guide table, in the main jet oil stage, the oil bundle is sprayed on the guide table.Described spraying guide table adopts cylindricality guide table or vertical rib shape guide table structure.Guide table has three kinds of forms basically: one, each oil bundle all is provided with a cylindricality guide table, and the surface of cylindricality guide table is made up of spherical head, guiding arc and cylinder body.Two, each oil bundle all is provided with a vertical rib shape guide table, and the surface of vertical rib shape guide table is made up of rounded nose, guiding arc and side.Three, be provided with a cross rib shape guide table at the drop point place of oil bundle, the surface of cross rib shape guide table is made up of rounded nose, guiding arc and side.Because above-mentioned guide table is provided with and is 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, the head of guiding arc, the below of guiding arc, and a spraying part is rebounded, and a part disperses to realize secondary-atomizing rapidly along the guiding arc.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 invention has the beneficial effects as follows: because guide table 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 guide table 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 guide table, power can improve about 10%.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is first embodiment's of internal-combustion engine spraying guidance system a longitudinal section tectonic maps.
Fig. 2 is the A zoomed-in view of Fig. 1.
Fig. 3 is second and the 3rd embodiment's of internal-combustion engine spraying guidance system a longitudinal section tectonic maps.
Fig. 4 is a B zoomed-in view among Fig. 3.
Fig. 5 is a C zoomed-in view among Fig. 3.
Among the figure: 1, cylinder head, 2, cylinder liner, 3, piston, 4, the firing chamber, 5, oil nozzle, 6, the oil bundle, 8,9, guide table, 7a, 8a, 9a, head, 7b, 8b, 9b, guiding arc, 7c, cylinder body, 8c, 9c, side.
Embodiment
In the embodiment shown in Fig. 1,2, form toroidal combustion chamber (4) by cylinder head (1), cylinder liner (2) and piston (3), the inwall of (4) is provided with cylindricality guide table (7) in the firing chamber.The position of cylindricality guide table (7) should guarantee the main jet oil stage at motor, and oil bundle (6) should be sprayed on the cylindricality guide table (7).Move past on piston in the journey, oil bundle (6) drops on the top of guiding arc (7b) successively, the below of spherical head (7a) and guiding arc (7b), thereby can guide spraying to flow, form ideal distribution.
In the embodiment shown in Fig. 3,4, the inwall of (4) is provided with vertical rib shape guide table (8) in the firing chamber, in the main jet oil stage of motor, oil bundle (6) should be sprayed on the vertical rib shape guide table (8), oil bundle (6) drops on rounded nose (8a) and the both sides guiding arcs (8b), thereby can guide spraying to flow, form ideal distribution.
In the embodiment shown in Fig. 3,5, the inwall of (4) is provided with cross rib shape guide table (9) in the firing chamber, in the main jet oil stage of motor, oil bundle (6) should be sprayed on the cross rib shape guide table (9), moves past on piston in the journey, and oil bundle (6) drops on the top of guiding arc (9b) successively, rounded nose (9a), the below of guiding arc (9b), thereby can guide spraying to flow, form ideal distribution.
Claims (3)
1. internal-combustion engine spraying guidance system, oil nozzle (5) sprays into high pressure fuel in the firing chamber of being made up of cylinder head (1), cylinder liner (2) and piston (3) (4) with vaporific in heavy wool bundle mode, inwall in toroidal combustion chamber (4) is provided with the spraying guide table, in the main jet oil stage, oil bundle (6) is sprayed on the guide table; It is characterized in that: described spraying guide table adopts cylindricality guide table (7) or vertical rib shape guide table (8) structure.
2. according to the described internal-combustion engine spraying of claim 1 guidance system, it is characterized in that: on the direction of each oil bundle (6) a cylindricality guide table (7) is set all, the surface of cylindricality guide table (7) is made up of spherical head (7a), guiding arc (7b) and cylinder body (7c).
3. according to the described internal-combustion engine spraying of claim 1 guidance system, it is characterized in that: on the direction of each oil bundle (6) a vertical rib shape guide table (8) is set all, the surface of vertical rib shape guide table (8) is made up of rounded nose (8a), guiding arc (8b) and side (8c).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031437907A CN1320262C (en) | 2003-08-06 | 2003-08-06 | Spraying guidance system of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031437907A CN1320262C (en) | 2003-08-06 | 2003-08-06 | Spraying guidance system of internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1480642A CN1480642A (en) | 2004-03-10 |
CN1320262C true CN1320262C (en) | 2007-06-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB031437907A Expired - Fee Related CN1320262C (en) | 2003-08-06 | 2003-08-06 | Spraying guidance system of internal combustion engine |
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CN (1) | CN1320262C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102661193B (en) * | 2012-05-16 | 2013-09-04 | 大连理工大学 | Double-layer split-flow burning system of direct-injection diesel engine |
KR101970017B1 (en) * | 2012-10-30 | 2019-04-17 | 두산인프라코어 주식회사 | Combustion chamber of direct injection diesel engine with inducer |
CN104675506A (en) * | 2014-12-31 | 2015-06-03 | 大连理工大学 | Diesel engine multi-point distribution type guide bench combustion chamber |
CN107060988A (en) * | 2017-03-24 | 2017-08-18 | 中国北方发动机研究所(天津) | A kind of new combustion chamber for adapting to variable vortex |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN86104092B (en) * | 1986-06-18 | 1987-09-23 | 大连工学院 | Oil film atomizing burn in shallow w-shaped combustor |
US4721080A (en) * | 1984-02-15 | 1988-01-26 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Structure of combustion chamber in diesel engine |
EP0828066A1 (en) * | 1996-09-06 | 1998-03-11 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Combustion chamber of diesel engine |
JPH10184364A (en) * | 1996-12-26 | 1998-07-14 | Isuzu Motors Ltd | Combustion chamber structure for direct injection type diesel engine |
-
2003
- 2003-08-06 CN CNB031437907A patent/CN1320262C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4721080A (en) * | 1984-02-15 | 1988-01-26 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Structure of combustion chamber in diesel engine |
CN86104092B (en) * | 1986-06-18 | 1987-09-23 | 大连工学院 | Oil film atomizing burn in shallow w-shaped combustor |
EP0828066A1 (en) * | 1996-09-06 | 1998-03-11 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Combustion chamber of diesel engine |
JPH10184364A (en) * | 1996-12-26 | 1998-07-14 | Isuzu Motors Ltd | Combustion chamber structure for direct injection type diesel engine |
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CN1480642A (en) | 2004-03-10 |
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Granted publication date: 20070606 Termination date: 20100806 |