CN105422257A - Double w-shaped combustion chamber applicable to opposed injection - Google Patents
Double w-shaped combustion chamber applicable to opposed injection Download PDFInfo
- Publication number
- CN105422257A CN105422257A CN201510934643.8A CN201510934643A CN105422257A CN 105422257 A CN105422257 A CN 105422257A CN 201510934643 A CN201510934643 A CN 201510934643A CN 105422257 A CN105422257 A CN 105422257A
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- CN
- China
- Prior art keywords
- combustion chamber
- firing chamber
- double
- opposed
- injected fuel
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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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
Abstract
The invention provides a double w-shaped combustion chamber applicable to opposed injection. The double w-shaped combustion chamber applicable to the opposed injection is characterized in that a w-shaped pit is formed in the center position of each of an air feeding side combustion chamber and an air exhausting side combustion chamber, wherein injected fuel oil spray guide structures are arranged at incisions, adjacent to a first oil injector and a second oil injector at two sides, of the air feeding side combustion chamber and the air exhausting side combustion chamber; a certain included angle is formed between the injected fuel oil spray guide structures at two sides of the air feeding side combustion chamber and the air exhausting side combustion chamber and a center line of the combustion chambers; the injected fuel oil spray guide structures are staggered and can correspondingly guide two injected fuel oil sprays to two sides of the double w-shaped combustion chamber. The double w-shaped combustion chamber applicable to the opposed injection has the following advantages: the problem of injected fuel oil spray collision caused by the opposed injection of the double oil injectors can be effectively avoided; the air utilization rate of the injected fuel oil spray can be increased on the premise that the capacity and compression ratio of the combustion chamber are unchanged, thus the oil-air mixing effect of an opposed injection type combustion system can be improved, and as a result, the combustion performances of double opposed engines can be improved.
Description
Technical field
The invention belongs to biconjugate and put two stroke engine technical field, especially relate to a kind of two toroidal combustion chamber being applicable to opposed injection.
Background technique
In cylinder, the quality of inflammable mixture directly affects the effect of fuel combustion, and then determines the power character of motor, Economy and emission performance.Put for two stroke engine (OPOC motor) for biconjugate, it adopts the structural design of the opposed cylinder of opposed pistons, by the working method of uniflow scavenging and the opposed injection of duel fuel injector, organize formation and the combustion process of inflammable mixture in cylinder.Owing to there is no the component such as cylinder head and distribution device, so the formation of its combustion system has 2 obvious features compared with conventional engines: first feature forms firing chamber by the combination of two piston end surfaces, and the firing chamber of conventional engines is made up of the gentle cylinder bottom plane of piston end surface.Another feature be 2 oil sprayer side arrangement in same cylinder, and adopt the working method of opposed injection.And conventional engines cylinder only has use 1 oil sprayer usually.
But, the working method of the opposed injection of duel fuel injector defines the fuel oil oil bundle of move toward one another in firing chamber, easily cause the collision of fuel spray, and make the little oil droplet in spray field again be fused into large drop, and be unfavorable for the fragmentation of fuel oil, evaporation and the rapid mixing with fresh air, and then the property indices of motor can be reduced.
Therefore, need the spray impinges problem that a kind of novel chamber structure causes to improve the opposed injection of duel fuel injector, improve quality and the combustion efficiency of inflammable mixture, and then promote the performance index that biconjugate puts two stroke engine.
Summary of the invention
In view of this, the present invention is intended to propose a kind of two toroidal combustion chamber being applicable to opposed injection, to solve the problem that biconjugate puts fuel spray collision and the air-fuel mixture quality reduction caused due to the opposed injection of duel fuel injector in two stroke engine.
For achieving the above object, technological scheme of the present invention is achieved in that
A kind of two toroidal combustion chamber being applicable to opposed injection, comprise parallel and the air inlet side firing chamber be oppositely arranged and exhaust side firing chamber, described air inlet side firing chamber is identical with the structural type of exhaust side firing chamber, is equipped with a ω type pit in the central position of firing chamber; Described air inlet side firing chamber and exhaust side firing chamber are being equipped with fuel spray guide structure with the oil sprayer one of both sides and the adjacent cut place of oil sprayer two; Fuel spray guide structure 5 and the firing chamber center line of the both sides of described air inlet side firing chamber and exhaust side firing chamber are provided with certain angle, are crisscross arranged, the both sides of two toroidal combustion chamber of two strands of fuel spray can being led respectively.
Further, described fuel spray guide structure is the flaring fascicular texture designed according to the direction of fuel oil oil bundle.
Relative to prior art, the present invention has following advantage:
The fuel spray collision problem effectively can avoided the opposed injection of duel fuel injector by adopting of the present invention pair of toroidal combustion chamber and cause, more be conducive to the reasonable layout of fuel spray in firing chamber, can under the prerequisite not changing combustion chamber volume and compression ratio, increase fuel spray to the utilization ratio of air, promote the air-fuel mixture effect of opposed spray combustion system, thus improve the combustion performance of two contraposition engine.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the two toroidal combustion chamber of the present invention;
Fig. 2 is the horizontal centre cross-sectional view of the two toroidal combustion chamber of the present invention;
Fig. 3 is the vertical central cross-section sectional view of the two toroidal combustion chamber of the present invention;
Fig. 4 is the plan view of air inlet side firing chamber of the present invention;
Fig. 5 is the plan view of exhaust side firing chamber of the present invention.
In figure:
1-air inlet side firing chamber, 2-oil sprayer one, 3-exhaust side firing chamber, 4-oil sprayer two, 5-fuel spray guide structure, 6-ω type pit.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of two toroidal combustion chamber being applicable to opposed injection of the present invention, as shown in Figures 1 to 3, comprise parallel and the air inlet side firing chamber 1 be oppositely arranged and exhaust side firing chamber 3, described air inlet side firing chamber 1 is identical with the structural type of exhaust side firing chamber 3, is equipped with a ω type pit 6 in the central position of firing chamber; Described air inlet side firing chamber 1 and exhaust side firing chamber 3 are being equipped with fuel spray guide structure 5 with the oil sprayer 1 of both sides and the adjacent cut place of oil sprayer 24, and described fuel spray guide structure 5 is the flaring fascicular textures designed according to the direction of fuel oil oil bundle; As shown in Figure 4,5, fuel spray guide structure 5 and the firing chamber center line of the both sides of described air inlet side firing chamber 1 and exhaust side firing chamber 3 are provided with certain angle, are crisscross arranged, the both sides of two toroidal combustion chamber of two strands of fuel spray can being led respectively.
The oil sprayer 1 of opposed distribution and oil sprayer 24 will eject fuel oil oil bundle, enter in two toroidal combustion chamber that air inlet side firing chamber 1 and exhaust side firing chamber 3 form by fuel spray guide structure 5, two strands of fuel spray develop towards the both sides of toroidal combustion chamber, in conjunction with the eddy motion of fresh air in ω type pit 6, can make fuel spray in firing chamber, have distribution space more widely, two strands of fuel oils oil bundles also effectively can be avoided simultaneously to collide in firing chamber, improve speed and quality that fuel oil mixes with fresh air.Under the prerequisite not changing combustion chamber volume and compression ratio, increase the utilization ratio of fuel spray to air, improve the air-fuel mixture effect of opposed spray combustion system, thus improve the performance index of two contraposition engine.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. one kind is applicable to two toroidal combustion chamber of opposed injection, it is characterized in that: comprise parallel and the air inlet side firing chamber (1) be oppositely arranged and exhaust side firing chamber (3), the central position of described air inlet side firing chamber (1) and exhaust side firing chamber (3) is equipped with a ω type pit (6); Described air inlet side firing chamber (1) and exhaust side firing chamber (3) are being equipped with fuel spray guide structure (5) with the oil sprayer one (2) of both sides and the adjacent cut place of oil sprayer two (4), the fuel spray guide structure (5) of the both sides of described air inlet side firing chamber (1) and exhaust side firing chamber (3) is all provided with certain angle with firing chamber center line, and be crisscross arranged, the both sides of two toroidal combustion chamber of two strands of fuel spray can being led respectively.
2. the two toroidal combustion chamber being applicable to opposed injection according to claim 1, is characterized in that: described fuel spray guide structure (5) is the flaring fascicular texture designed according to the direction of fuel oil oil bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934643.8A CN105422257A (en) | 2015-12-14 | 2015-12-14 | Double w-shaped combustion chamber applicable to opposed injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934643.8A CN105422257A (en) | 2015-12-14 | 2015-12-14 | Double w-shaped combustion chamber applicable to opposed injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422257A true CN105422257A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934643.8A Pending CN105422257A (en) | 2015-12-14 | 2015-12-14 | Double w-shaped combustion chamber applicable to opposed injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840293A (en) * | 2016-04-05 | 2016-08-10 | 北京理工大学 | Squish-flow combustion system for opposed piston engine |
| CN105927365A (en) * | 2016-05-20 | 2016-09-07 | 北京理工大学 | Double-scroll combustion system of opposed-piston engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011028284A1 (en) * | 2009-09-01 | 2011-03-10 | Ecomotors Inc. | Non-soot emitting fuel combustion chamber |
| US20120073541A1 (en) * | 2010-08-16 | 2012-03-29 | Achates Power, Inc. | Fuel injection spray patterns for opposed-piston engines |
| CN102900521A (en) * | 2011-07-26 | 2013-01-30 | 艾克莫特国际公司 | Tumble-flow accelerating combustion chamber |
| CN103047064A (en) * | 2012-12-20 | 2013-04-17 | 中国兵器工业集团第七0研究所 | Opposition fuel injection device with opposed pistons and double fuel injectors |
| CN202883094U (en) * | 2012-01-17 | 2013-04-17 | 艾克莫特国际公司 | Combustion chamber and combustion chamber system and internal combustion engine of direct ejector used for side installation |
| CN104632352A (en) * | 2014-12-11 | 2015-05-20 | 中国北方发动机研究所(天津) | Combined jet oil emulsion enveloping type combustor |
| CN104662281A (en) * | 2012-09-25 | 2015-05-27 | 阿凯提兹动力公司 | Fuel injection with swirl spray patterns in opposed-piston engines |
-
2015
- 2015-12-14 CN CN201510934643.8A patent/CN105422257A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011028284A1 (en) * | 2009-09-01 | 2011-03-10 | Ecomotors Inc. | Non-soot emitting fuel combustion chamber |
| US20120073541A1 (en) * | 2010-08-16 | 2012-03-29 | Achates Power, Inc. | Fuel injection spray patterns for opposed-piston engines |
| CN102900521A (en) * | 2011-07-26 | 2013-01-30 | 艾克莫特国际公司 | Tumble-flow accelerating combustion chamber |
| CN202883094U (en) * | 2012-01-17 | 2013-04-17 | 艾克莫特国际公司 | Combustion chamber and combustion chamber system and internal combustion engine of direct ejector used for side installation |
| CN104662281A (en) * | 2012-09-25 | 2015-05-27 | 阿凯提兹动力公司 | Fuel injection with swirl spray patterns in opposed-piston engines |
| CN103047064A (en) * | 2012-12-20 | 2013-04-17 | 中国兵器工业集团第七0研究所 | Opposition fuel injection device with opposed pistons and double fuel injectors |
| CN104632352A (en) * | 2014-12-11 | 2015-05-20 | 中国北方发动机研究所(天津) | Combined jet oil emulsion enveloping type combustor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840293A (en) * | 2016-04-05 | 2016-08-10 | 北京理工大学 | Squish-flow combustion system for opposed piston engine |
| CN105840293B (en) * | 2016-04-05 | 2018-06-29 | 北京理工大学 | For the squish flow combustion system of opposed-piston engine |
| CN105927365A (en) * | 2016-05-20 | 2016-09-07 | 北京理工大学 | Double-scroll combustion system of opposed-piston engine |
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Application publication date: 20160323 |
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