CN201835908U - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
- Publication number
- CN201835908U CN201835908U CN201020595261XU CN201020595261U CN201835908U CN 201835908 U CN201835908 U CN 201835908U CN 201020595261X U CN201020595261X U CN 201020595261XU CN 201020595261 U CN201020595261 U CN 201020595261U CN 201835908 U CN201835908 U CN 201835908U
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- Prior art keywords
- combustion engine
- spark plug
- cylinder
- fuel
- internal combustion
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 66
- 239000000203 mixture Substances 0.000 claims abstract description 56
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims description 11
- 238000013517 stratification Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 27
- 239000000295 fuel oil Substances 0.000 description 26
- 238000010304 firing Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000037361 pathway Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
本实用新型是关于一种内燃机，该内燃机的每一气缸包括：与气缸的燃烧室连通的两个进气道、与气缸的燃烧室连通排气道、向所述进气道喷燃油并与空气混合以形成可燃混合气的喷油器及用于点火的火花塞；喷油时靠近火花塞侧的进气道中的可燃混合气的燃油浓度高于另一进气道中的可燃混合气的燃油浓度。本实用新型的内燃机，能够使靠近火花塞侧的可燃混合气燃油浓度高，从而在气缸的燃烧室内形成稳定的可燃混合气分层。
The utility model relates to an internal combustion engine. Each cylinder of the internal combustion engine includes: two intake passages communicating with the combustion chamber of the cylinder, an exhaust passage communicating with the combustion chamber of the cylinder, injecting fuel into the intake passages and connecting with the combustion chamber of the cylinder. The fuel injector that mixes air to form a combustible mixture and the spark plug for ignition; the fuel concentration of the combustible mixture in the intake port near the spark plug is higher than the fuel concentration of the combustible mixture in the other intake port during fuel injection. The internal combustion engine of the utility model can make the fuel concentration of the combustible gas mixture close to the spark plug side high, thereby forming a stable stratification of the combustible gas mixture in the combustion chamber of the cylinder.
Description
Technical field
The utility model relates to internal-combustion engine, particularly relates to a kind of internal-combustion engine of inflammable mixture layering.
Background technique
At present, known gas-duct jetting gasoline engine is mainly homogeneous combustion, and the mixture strength that promptly enters cylinder is even, and the air flue design all is symmetrical air flue design, i.e. the shaped design unanimity of two intake ducts; And oil sprayer adopts symmetric arrangement, and the axis of oil sprayer overlaps with the symmetry plane of two intake ducts.This traditional design proposal is in order to produce consistent air inflow and uniform mixed gas in two intake ducts.
Spark plug on the three valve cylinder cap is generally asymmetric arrangement (cylinder-bore axis is with exterior domain), and oil sprayer then adopts symmetric arrangement.Because the intake duct foozle causes by two intake ducts and enters the air-flow of cylinder and not quite identical, and because the oil sprayer axial location can be not fully and the coincidence of air flue symmetry plane yet, the fuel oil that also can cause oil sprayer ejection is in the distribution of two intake ducts also equivalent fully not, and these two kinds of errors have caused the bigger difference of mixture strength existence that enters cylinder by two intake ducts.When this type of manufacturing variation causes the spark plug near zone mixed gas of three valve internal-combustion engine thinner, cause easily then that engine starting difficulty, combustion instability, discharging are poor, oil consumption is than problems such as height.
Summary of the invention
Because the existing defective of above-mentioned existing gasoline engine, the purpose of this utility model is, a kind of internal-combustion engine is provided, make its intake duct enter the inflammable mixture fuel oil concentration height of firing chamber, thereby in the firing chamber of cylinder, form stable inflammable mixture layering and burning near the spark plug side.
The utility model to achieve these goals, according to a kind of internal-combustion engine that the utility model proposes, each cylinder of this internal-combustion engine comprises: two intake ducts that are communicated with the firing chamber of cylinder, be communicated with the firing chamber of cylinder air outlet flue, to described intake duct spray fuel oil and with air mixing with the oil sprayer of formation inflammable mixture and the spark plug that is used to light a fire; The fuel oil concentration that wherein is higher than the inflammable mixture in another intake duct near the fuel oil concentration of the inflammable mixture in the intake duct of spark plug side.
The utility model also can be applied to the following technical measures to achieve further.
Aforesaid internal-combustion engine, wherein said oil sprayer is provided with to the intake duct biasing near the spark plug side, provides than multiple fuel to the intake duct near spark plug one side.
Aforesaid internal-combustion engine, the asymmetric oil bundle of wherein said oil sprayer ejection provides than multiple fuel to the intake duct near spark plug one side.
Aforesaid internal-combustion engine wherein is being provided with throttle valve near in the inlet air pathway of spark plug side, to regulate near the air inlet amount in the intake duct of spark plug side.
Aforesaid internal-combustion engine, wherein said throttle valve, when this idling for internal combustion engine or operation at part load state, the air quantity that the intake duct of close spark plug one side of minimizing enters; When this engine load improves gradually, the air quantity that the intake duct of close spark plug one side of increase enters.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, internal-combustion engine of the present utility model has following advantage at least:
One, internal-combustion engine of the present utility model can make the inflammable mixture fuel oil concentration height near the spark plug side, thereby forms stable inflammable mixture layering in the firing chamber of cylinder.
Two, internal-combustion engine of the present utility model forming stable charge stratification in the firing chamber at cylinder under all or part operating mode, improves the combustion stability of internal-combustion engine, reduces pumping loss, improves fuel economy.
Three, internal-combustion engine of the present utility model, avoided because enter that the inconsistent starting difficulty that causes of inflammable mixture concentration, combustion instability, the discharging of cylinder are poor, oil consumption is than problems such as height.
Description of drawings
Fig. 1 is the utility model internal-combustion engine first embodiment's a partial schematic diagram.
Fig. 2 is the utility model internal-combustion engine second embodiment's a partial schematic diagram.
Fig. 3 is the utility model internal-combustion engine the 3rd embodiment's a partial schematic diagram.
1: air outlet flue 2: cylinder
3: intake duct 4: oil sprayer
5: intake duct 6: spark plug
7: throttle valve 8: intake manifold
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to describing in detail according to its embodiment of internal-combustion engine that the utility model proposes, structure, feature and effect thereof.
The internal-combustion engine of the utility model preferred embodiment, each cylinder comprises: two intake ducts that are communicated with the firing chamber of cylinder, be communicated with the firing chamber of cylinder air outlet flue, to described intake duct spray fuel oil and with air mixing with oil sprayer that forms inflammable mixture and the spark plug that is used to light a fire, be higher than the fuel oil concentration of the inflammable mixture in another intake duct during oil spout near the fuel oil concentration of the inflammable mixture in the intake duct of spark plug side.Internal-combustion engine of the present utility model can form stable charge stratification and stratified mixture combustion, can improve the fuel economy of internal-combustion engine.
Seeing also shown in Figure 1ly, is the utility model internal-combustion engine first embodiment's partial schematic diagram.First embodiment's internal-combustion engine can be the gas-duct jetting gasoline engine.Each cylinder 2 of this internal-combustion engine comprises: two intake ducts 3,5, be used for input air, and an end of two intake ducts 3,5 is communicated with the firing chamber (not shown in the accompanying drawing) of cylinder 2 respectively, and the other end is communicated with intake manifold 8 jointly; Air outlet flue 1 is communicated with the firing chamber of cylinder 2, is used to discharge the waste gas in the cylinder 2; Oil sprayer 4 is arranged in the intake manifold 8, and to intake duct 3,5 spray fuel oils, the air mixing of the fuel oil of ejection and intake duct 3,5 inputs forms inflammable mixture; And spark plug 6, be provided with near intake duct 5, be used to light inflammable mixture.Wherein this oil sprayer 4 is to setovering near the intake duct 5 of spark plug 6 and establishing.During the internal combustion engine of present embodiment, this oil sprayer 4 sprays into more fuel oil to intake duct 5, simultaneously spray into less fuel oil, therefore the inflammable mixture of 3,5 formation variable concentrations (concentration of fuel in the inflammable mixture) in two intake ducts to intake duct 3 away from spark plug 6.Enter the firing chamber of cylinder 2 when inflammable mixture after, inflammable mixture fuel oil concentration at spark plug 6 near zones is higher, lower in inflammable mixture fuel oil concentration away from spark plug 6 zones, inflammable mixture layering in the firing chamber of formation cylinder 2, can improve the combustion stability of internal-combustion engine, reduce pumping loss, improve fuel economy.
Seeing also shown in Figure 2ly, is the utility model internal-combustion engine second embodiment's partial schematic diagram.Each cylinder 2 of this internal-combustion engine comprises: two intake ducts 3,5, be used for input air, and an end of two intake ducts 3,5 is communicated with the firing chamber (scheming not shown) of cylinder 2 respectively, and the other end is communicated with intake manifold 8 jointly; Air outlet flue 1 is communicated with the firing chamber of cylinder 2, is used to discharge the waste gas in the cylinder 2; Oil sprayer 4 is arranged in the intake manifold 8, and to intake duct 3,5 spray fuel oils, the air mixing of the fuel oil of ejection and intake duct 3,5 inputs forms inflammable mixture; Spark plug 6 is provided with near intake duct 5, is used to light inflammable mixture.Wherein the oil bundle of these oil sprayer 4 ejections is asymmetric, provides than multiple fuel to the intake duct 5 near spark plug 6 one sides.During the internal combustion engine of present embodiment, this oil sprayer 4 sprays into more fuel oil to intake duct 5, simultaneously spray into less fuel oil, therefore the inflammable mixture of 3,5 formation variable concentrations (concentration of fuel in the inflammable mixture) in two intake ducts to intake duct 3 away from spark plug 6.Enter the firing chamber of cylinder 2 when inflammable mixture after, inflammable mixture fuel oil concentration at spark plug 6 near zones is higher, lower in inflammable mixture fuel oil concentration away from spark plug 6 zones, inflammable mixture layering in the firing chamber of formation cylinder 2, can improve the combustion stability of internal-combustion engine, reduce pumping loss, improve fuel economy.
Preferred embodiment 3, as shown in Figure 3.Going up installation throttle valve (7) near the intake duct (5) of spark plug (6) one sides, the angle of this throttle valve body drives rotating shaft by machinery or electronic control, the angle of regulating throttle valve body according to the running state of internal-combustion engine reduces the air quantity that enters cylinder by this air flue to regulate the circulation area of this air flue.At idling or operation at part load state, this throttle valve body is in partially or completely open mode, it is less that feasible intake duct near spark plug one side enters air quantity, because oil sprayer (4) is symmetric design and layout, the fuel flow unanimity that in two intake ducts (5,3), provides, therefore forming than rich mixture near spark plug one side intake duct, after mixed gas enters cylinder (2), rich mixture is distributed near the spark plug, then be distributed in zone than weak mixture, form charge stratification in the cylinder away from spark plug.Raising along with load, can close throttle valve gradually to increase air mass flow near spark plug one side, progressively reduce the difference of mixture strength and another air flue mixture strength in this air flue, until under big load condition, opening throttle valve body fully, in cylinder, form complete homogeneous charge, obtain peak output.
Seeing also shown in Figure 3ly, is the utility model internal-combustion engine the 3rd embodiment's partial schematic diagram.Each cylinder 2 of this internal-combustion engine comprises: two intake ducts 3,5, be used for input air, and an end of two intake ducts 3,5 is communicated with the firing chamber (scheming not shown) of cylinder 2 respectively, and the other end is communicated with intake manifold 8 jointly; Air outlet flue 1 is communicated with the firing chamber of cylinder 2, is used to discharge the waste gas in the cylinder 2; Oil sprayer 4 is arranged in the intake manifold 8, and to intake duct 3,5 spray fuel oils, the air mixing of the fuel oil of ejection and intake duct 3,5 inputs forms inflammable mixture; Spark plug 6 is provided with near intake duct 5, is used to light inflammable mixture; And air control shutter 7, being installed near on the inlet air pathway of spark plug 6 one sides, this inlet air pathway is meant air input passage in intake manifold 8 and the intake duct 3,5, this air control shutter 7 drives by machinery or electronic control.Wherein the oil bundle of these oil sprayer 4 ejections can be symmetry or asymmetric, and this oil sprayer 4 can be arranged near intake duct 5 sides of spark plug 6 sides or be arranged on the central shaft of two intake ducts 3,5.
During this 3rd embodiment's internal combustion engine, this oil sprayer 4 sprays into fuel oil to two intake ducts 3,5, this air control shutter 7 is regulated the air quantity that enters intake duct 3,5, regulate the circulation area of inlet air pathway according to the running state of internal-combustion engine, the air quantity that adjusting enters cylinder 2 by this inlet air pathway is so that form the inflammable mixture of variable concentrations (concentration of fuel in the inflammable mixture) in two intake ducts 3,5.This internal-combustion engine is when idling or operation at part load state, regulate this throttle valve 7, it is less that feasible intake duct 5 near spark plug 6 one sides enters air quantity, make near spark plug 6 one side intake ducts 5 and form denseer inflammable mixture, enter the firing chamber of cylinder 2 when inflammable mixture after, inflammable mixture fuel oil concentration at spark plug 6 near zones is higher, lower in inflammable mixture fuel oil concentration away from spark plug 6 zones, in the firing chamber of cylinder 2, form the inflammable mixture layering, can improve the combustion stability of internal-combustion engine, reduce pumping loss, improve fuel economy.Raising along with engine load, can regulate the air quantity that throttle valve 7 enters with the intake duct 5 that increases close spark plug one side gradually, progressively reduce in this intake duct 5 difference of inflammable mixture concentration in the inflammable mixture concentration and another intake duct 3, until under big load condition, in the firing chamber of cylinder 2, forming complete homogeneous inflammable mixture, obtain peak output.
Though the utility model the utility model discloses as above with preferred embodiment, so be not in order to limit the scope that the utility model is implemented, the simple equivalent of doing according to claims of the present utility model and description changes and modification, still belongs in the scope of technical solutions of the utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020595261XU CN201835908U (en) | 2010-11-08 | 2010-11-08 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020595261XU CN201835908U (en) | 2010-11-08 | 2010-11-08 | Internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835908U true CN201835908U (en) | 2011-05-18 |
Family
ID=44006016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020595261XU Expired - Fee Related CN201835908U (en) | 2010-11-08 | 2010-11-08 | Internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465806A (en) * | 2010-11-08 | 2012-05-23 | 胡建华 | Internal combustion engine |
-
2010
- 2010-11-08 CN CN201020595261XU patent/CN201835908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465806A (en) * | 2010-11-08 | 2012-05-23 | 胡建华 | Internal combustion engine |
| CN102465806B (en) * | 2010-11-08 | 2013-07-24 | 胡建华 | Internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiang Yi Document name: Notification of Passing Examination on Formalities |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHENJIANG ZHONGYAN ELECTRIC CONTROL CO., LTD. Free format text: FORMER OWNER: HU JIANHUA Effective date: 20140925 Free format text: FORMER OWNER: SHEN SHUIWEN JIANG YI Effective date: 20140925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200129 PUDONG NEW AREA, SHANGHAI TO: 212009 ZHENJIANG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140925 Address after: 212009 D37, No. fifteen, No. 99, Zhenjiang, Jiangsu, China Patentee after: Zhenjiang Zhongyan Electric Control Co., Ltd. Address before: 200129 201, room 19, 555 lane, Zhang Yang North Road, Shanghai, Pudong New Area Patentee before: Hu Jianhua Patentee before: Shen Shuiwen Patentee before: Jiang Yi |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20161108 |