CN201865749U - Combustion chamber matched with rarefied combustion system of multi-spot electric spray natural gas engine - Google Patents
Combustion chamber matched with rarefied combustion system of multi-spot electric spray natural gas engine Download PDFInfo
- Publication number
- CN201865749U CN201865749U CN2010206180109U CN201020618010U CN201865749U CN 201865749 U CN201865749 U CN 201865749U CN 2010206180109 U CN2010206180109 U CN 2010206180109U CN 201020618010 U CN201020618010 U CN 201020618010U CN 201865749 U CN201865749 U CN 201865749U
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- CN
- China
- Prior art keywords
- combustion chamber
- combustion
- natural gas
- gas engine
- chamber
- 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
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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
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model relates to a combustion chamber matched with a rarefied combustion system of a multi-spot electric spray natural gas engine. The combustion chamber is characterized in that the combustion chamber is in a basin shape; the diameter of the combustion chamber is 86 mm; the height from a bulge at the bottom of the combustion chamber to the top surface of a piston is 17.5 mm; the included angle of the bulge at the bottom of the combustion chamber is 164 degrees; the fillet of the bottom of the combustion chamber is 13 mm; the fillet of a throat opening of the combustion chamber is 2.5 mm; and the depth of the combustion chamber is 21.6 mm. HC produced in the combustion chamber and smoke intensity reach a lowest point, which meet the Europe III emission standard regulated by GB17691-2005 and are lower than the standard, namely the small particle emission is lower than 0.1 g/kW.h, and NO<x> gaseous emission is lower than 4.9 g/kW.h.
Description
Technical field
The utility model relates to a kind of firing chamber that cooperates multiple spot EFI natural gas engine lean-burn systems, is a kind of firing chamber that is used to cooperate the natural gas used for automobile motor of multiple spot EFI lean-burn systems system.
Background technique
The firing chamber of adopting at CA6SL2-35 series natural gas motor is the shallow basin type firing chamber, and has adopted the automatically controlled natural gas supply system of multiple spot, makes it to form lean combustion by rational control air fuel ratio, thereby reduces emission level, reaches the Ou Si emission standard.Promptly discharge particulate less than 0.03g/kW.h, NOx discharges less than 3.5 g/kW.h.
Summary of the invention
The purpose of this utility model is to provide a kind of firing chamber that cooperates multiple spot EFI natural gas engine lean-burn systems, Combustion chamber design is to adopt three-dimensional CFD Aided Design, makes the smoke intensity that produces in the firing chamber be lower than the Europe IV emission standard of rules GB17691-2005 regulation.
The technical solution of the utility model is achieved in that a kind of cooperation multiple spot EFI natural gas engine lean-burn systems firing chamber, it is characterized in that: the firing chamber is a basin shaped combustion chamber, firing chamber external diameter 86mm, degree of depth 21.6mm, the combustion chamber throat chamfering is R2mm, bottom fillet R13mm, the bottom protrusion angle is 164 degree, being raised to apical side height is 17.5, volume 114.2mL, compression ratio 12.
Good effect of the present utility model is to reduce the smoke intensity that produces in the firing chamber, select the emission level of suitable surface to volume ratio control HC, make the CA6SL2 electric-controlled natural gas engine reach the Europe IV emission standard of GB17691-2005 regulation, and be lower than standard and be particle emission less than 0.03g/kW.h, the NOx gaseous emission is less than 3.5 g/kW.h.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, a kind of firing chamber that cooperates multiple spot EFI natural gas engine lean-burn systems, it is characterized in that: combustion-chamber shape is a basin shaped combustion chamber, firing chamber diameter 1 is 86mm, the firing chamber bottom protrusion is 17.5mm to piston-top surface height 2, and firing chamber bottom protrusion angle 3 is 164 degree, and bottom, firing chamber fillet 4 is 13mm, combustion chamber throat fillet 5 is 2.5mm, and combustion-chamber depth 6 is 21.6mm.
Combustion-chamber depth cooperates corresponding diameter, obtain design volume rational surface to volume ratio of prior acquisition and suitable quench area simultaneously, thereby reduce the heat diffusion area of firing chamber and obtain rational rate of burning and velocity of propagation of flame, thereby the engine performance index that reaches Europe IV discharging and design.
Claims (1)
1. firing chamber that cooperates multiple spot EFI natural gas engine lean-burn systems, it is characterized in that: combustion-chamber shape is a basin shaped combustion chamber, firing chamber diameter (1) is 86mm, firing chamber bottom protrusion to piston-top surface height (2) is 17.5mm, firing chamber bottom protrusion angle (3) is 164 degree, firing chamber bottom fillet (4) is 13mm, and combustion chamber throat fillet (5) is 2.5mm, and combustion-chamber depth (6) is 21.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206180109U CN201865749U (en) | 2010-11-22 | 2010-11-22 | Combustion chamber matched with rarefied combustion system of multi-spot electric spray natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206180109U CN201865749U (en) | 2010-11-22 | 2010-11-22 | Combustion chamber matched with rarefied combustion system of multi-spot electric spray natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865749U true CN201865749U (en) | 2011-06-15 |
Family
ID=44136906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206180109U Expired - Fee Related CN201865749U (en) | 2010-11-22 | 2010-11-22 | Combustion chamber matched with rarefied combustion system of multi-spot electric spray natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457773A (en) * | 2018-03-19 | 2018-08-28 | 李洋涛 | The quasi- lean burn method of the virtual pressurized construction of engine and its connecting inner EGR |
-
2010
- 2010-11-22 CN CN2010206180109U patent/CN201865749U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457773A (en) * | 2018-03-19 | 2018-08-28 | 李洋涛 | The quasi- lean burn method of the virtual pressurized construction of engine and its connecting inner EGR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20191122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |