CN1558106A - Collision spray vortex chamber of internal combustion engine - Google Patents
Collision spray vortex chamber of internal combustion engine Download PDFInfo
- Publication number
- CN1558106A CN1558106A CNA2004100210858A CN200410021085A CN1558106A CN 1558106 A CN1558106 A CN 1558106A CN A2004100210858 A CNA2004100210858 A CN A2004100210858A CN 200410021085 A CN200410021085 A CN 200410021085A CN 1558106 A CN1558106 A CN 1558106A
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- CN
- China
- Prior art keywords
- collision
- eddy current
- chamber
- vortex chamber
- combustion engine
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- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 26
- 239000007921 spray Substances 0.000 title claims description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000243 solution Substances 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
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The present invention is collision atomizing eddy current chamber for internal combustion engine and belongs to the field of mixed gas formation and combustion in internal combustion engine. The colliding stage set inside the eddy current chamber makes the primary oil beam jetted from the oil nozzle form fast even fine secondary oil beam, and the comprehensive effects of the secondary oil beam and air eddy current inside the eddy current chamber form excellent inflammable gas mixture resulting in fast and perfect combustion. The area of the connecting channel between the main combustor and the eddy current chamber is increased to lower the eddy current strength inside the eddy current chamber. The present invention results in raised economic performance, improved cold starting performance and load adaptability and obvious reduced lower-load carbon smoke exhaust, while maintaining the available compression ratio.
Description
Technical field
The present invention relates to a kind of internal-combustion engine collision atomizing eddy current chamber, belong to engine mixed gas and form and combustion field.
Background technique
At present, swirl chamber diesel engine mainly guarantees mixed gas quality preferably by strong air movement, and air utilization ratio is higher.Because the intensity of air movement improves with rotating speed and increases, guaranteed also to have down at a high speed preferable performance, advantages such as ejecting system is less demanding are widely used in the miniature high-speed machine.But because the influence of strong air movement in the vortex chamber makes radiation loss bigger, the flow losses that the passage throttling action causes are also bigger.Therefore, swirl chamber diesel engine is low than the direct injection combustion chamber thermal efficiency, and is less economical.Simultaneously, radiation loss is also relatively poor than the cold starting performance of ambassador's swirl chamber diesel engine, generally recently improves cold starting performance with higher compression.For the higher diesel engine for automobile of ask for something, generally all the electric preheating plug to be installed.
Summary of the invention
Lower for the Economy that solves vortex chamber's combustion manner, cold starting performance is relatively poor and low-load under the bigger problem of carbon smoke exhaust, the invention provides a kind of internal-combustion engine collision atomizing eddy current chamber, this vortex chamber is under the not high situation of strength of vortex, also good inflammable mixture be can form, thereby Economy, cold starting performance and the low-load performance of swirl chamber diesel engine improved.
The technical solution adopted for the present invention to solve the technical problems is: a kind of internal-combustion engine collision atomization combustion vortex chamber, it mainly contains one by cylinder head, the main combustion chamber that cylinder liner and piston are formed and a vortex chamber that is located in the cylinder head form, a connecting passage is arranged between vortex chamber and main combustion chamber, single-opening jet stretches in the vortex chamber, high pressure fuel sprays into the vortex chamber through oil nozzle, the strong eddy current air mixing of clamp-oning when compression stroke is up in the vortex chamber with piston forms inflammable mixture, in the vortex chamber, be provided with a collision stage, the primary oil beam of oil nozzle directly is sprayed onto on the collision stage, under the guiding of the guide surface of collision stage, produce secondary oil beam, form inflammable mixture with the air mixing of doing eddy motion.A kind of method is that the collision area of collision stage adopts the concave arc surface structure, and primary oil beam sprays to concave arc surface from true dip direction.Another kind method is that the collision area of collision stage adopts plane structure, and primary oil beam sprays to the plane from true dip direction.Another method is that the collision area of above-mentioned collision stage adopts the convex globoidal structure, and primary oil beam sprays to convex globoidal from true dip direction.Because above-mentioned collision stage is provided with and is suitable for the mobile profile of spraying, the primary oil beam of oil nozzle sprays to collision area from true dip direction, a spraying part is rebounded, a part disperses to realize secondary-atomizing rapidly along guide surface, because the speed that spraying disperses is fast, it is big that the space range that distributes becomes, and involved air amount increases, thereby the formation of inflammable mixture not exclusively depends on the strength of vortex in the vortex chamber.
The invention has the beneficial effects as follows: owing in the vortex chamber, be provided with collision stage, the primary oil beam of oil nozzle is behind true dip direction directive collision stage, disperse to form the thinner secondary oil beam of particle diameter rapidly, the comprehensive function of the air swirl in secondary oil beam and the vortex chamber, form good inflammable mixture, make burning rapidly with perfect.Evidence: reduce the strength of vortex in the vortex chamber with the area that increases connecting passage between main combustion chamber and the vortex chamber (aisle spare be piston head area 4%), under the situation that keeps original compression ratio, improved Economy, improved the adaptability of cold starting performance and low-load, particularly the carbon smoke exhaust at low-load has obvious decline.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is an embodiment's of internal-combustion engine collision atomizing eddy current chamber a longitudinal section tectonic maps.
Fig. 2 is that the collision area of collision stage is the structural representation of concave arc surface.
Fig. 3 is that the collision area of collision stage is the structural representation on plane.
Fig. 4 is that the collision area of collision stage is the structural representation of convex globoidal.
Among the figure: 1, cylinder head, 2, cylinder liner, 3, piston, 4, main combustion chamber, 5, oil nozzle, 6, primary oil beam, 6a, secondary oil beam, 7, collision stage, 7a, on connect arc, 7b, concave arc surface, 7c, connect arc down, 7d, plane, 7e, convex globoidal, 8, the vortex chamber, 9, passage.
Embodiment
In the embodiment shown in Fig. 1,2,3,4, a main combustion chamber 4 of forming by cylinder head 1, cylinder liner 2 and piston 3, in cylinder head 1, be provided with a vortex chamber 8, a connecting passage 9 of being convenient to produce suitable air swirl in vortex chamber 8 is arranged between vortex chamber 8 and the main combustion chamber 4, aisle spare is 4% of a piston head area, the head of oil nozzle 5 stretches in the vortex chamber 8, in vortex chamber 8, be provided with a collision stage 7, the primary oil beam 6 of oil nozzle 5 is with the collision area on the direct directive collision stage 7 in certain angle of inclination.Collision area has three kinds of profiles: a kind of employing concave arc surface 7b structure, and the another kind of plane 7d structure that adopts, another adopts convex globoidal (7e) structure.No matter adopt the sort of structure, adopt around the collision area and go up transition arcs 7a and following transition arcs 7c and vortex chamber's inwall fairing transition.
Claims (4)
1. internal-combustion engine collision atomizing eddy current chamber, it mainly contains one by cylinder head (1), the main combustion chamber (4) that cylinder liner (2) and piston (3) are formed and a vortex chamber (8) that is located in the cylinder head (1) form, between vortex chamber (8) and main combustion chamber (4), a connecting passage (9) is arranged, single-opening jet (5) stretches in the vortex chamber (8), high pressure fuel sprays into vortex chamber (8) through oil nozzle (5), the strong eddy current air mixing of clamp-oning when compression stroke is up in the vortex chamber (8) with piston (3) forms inflammable mixture, it is characterized in that: in vortex chamber (8), be provided with a collision stage (7), the primary oil beam (6) of oil nozzle (5) directly is sprayed onto on the collision stage (7), under the guiding of the guide surface of collision stage (7), produce secondary oil beam (6a), form inflammable mixture with the air mixing of doing eddy motion.
2. according to the described internal-combustion engine of claim 1 collision atomizing eddy current chamber, it is characterized in that: the collision area of above-mentioned collision stage (7) adopts concave arc surface (7b) structure, and primary oil beam (6) sprays to concave arc surface (7b) from true dip direction.
3. according to the described internal-combustion engine of claim 1 collision atomizing eddy current chamber, it is characterized in that: the collision area of above-mentioned collision stage (7) adopts plane (7d) structure, and primary oil beam (6) sprays to plane (7d) from true dip direction.
4. according to the described internal-combustion engine of claim 1 collision atomizing eddy current chamber, it is characterized in that: the collision area of above-mentioned collision stage (7) adopts convex globoidal (7e) structure, and primary oil beam (6) sprays to convex globoidal (7e) from true dip direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100210858A CN1304749C (en) | 2004-01-16 | 2004-01-16 | Collision spray vortex chamber of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100210858A CN1304749C (en) | 2004-01-16 | 2004-01-16 | Collision spray vortex chamber of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558106A true CN1558106A (en) | 2004-12-29 |
| CN1304749C CN1304749C (en) | 2007-03-14 |
Family
ID=34351910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100210858A Expired - Fee Related CN1304749C (en) | 2004-01-16 | 2004-01-16 | Collision spray vortex chamber of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1304749C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448331A (en) * | 2016-06-01 | 2017-12-08 | 福特环球技术公司 | Controlled air for diesel engine carries passage secretly |
| CN113414020A (en) * | 2021-05-19 | 2021-09-21 | 山东省农业机械科学研究院 | Gas-liquid two-phase high-voltage electrostatic spray head and spray device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4204484A (en) * | 1975-06-24 | 1980-05-27 | Toyota Jidosha Kogyo Kabushiki Kaisha | Auxiliary combustion chamber of internal combustion engine |
| JPS61182416A (en) * | 1985-02-07 | 1986-08-15 | Mitsubishi Motors Corp | Subchamber type combustion chamber |
| DE10217996A1 (en) * | 2002-04-23 | 2003-11-13 | Man B & W Diesel Ag | Self-igniting mixture-compressing internal combustion engine and method for its operation |
| CN2570482Y (en) * | 2002-09-29 | 2003-09-03 | 天津大学 | Natural gas engine pre-ignition chamber built-in type gas supply apparatus |
-
2004
- 2004-01-16 CN CNB2004100210858A patent/CN1304749C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448331A (en) * | 2016-06-01 | 2017-12-08 | 福特环球技术公司 | Controlled air for diesel engine carries passage secretly |
| CN107448331B (en) * | 2016-06-01 | 2021-03-02 | 福特环球技术公司 | Controlled air entrainment passage for diesel engines |
| CN113414020A (en) * | 2021-05-19 | 2021-09-21 | 山东省农业机械科学研究院 | Gas-liquid two-phase high-voltage electrostatic spray head and spray device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1304749C (en) | 2007-03-14 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20100219 |