CN203560001U - Combustion chamber on piston of natural gas engine - Google Patents
Combustion chamber on piston of natural gas engine Download PDFInfo
- Publication number
- CN203560001U CN203560001U CN201320703866.XU CN201320703866U CN203560001U CN 203560001 U CN203560001 U CN 203560001U CN 201320703866 U CN201320703866 U CN 201320703866U CN 203560001 U CN203560001 U CN 203560001U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- piston
- combustion chamber
- gas engine
- engine
- 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 - Lifetime
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 239000003345 natural gas Substances 0.000 title claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 claims description 13
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Abstract
The utility model provides a combustion chamber on a piston of a natural gas engine. The diameter d is 60-68 mm, the depth h is 12-15 mm, the bottom transition circular arc Rb is 6-10 mm, the top transition circular arc Ra is 1-2 mm, and the eccentric distance e is 0-5 mm. The combustion chamber is suitable for the natural gas engine with a cylinder diameter of 80-90 mm, all parameters are reasonably matched, combustion and emission performance of the engine can be effectively improved, and the Euro V emission standard can be achieved under the condition that a catalytic converter is used.
Description
Technical field
The utility model relates to engine piston, particularly a kind of engine piston combustion chamber of natural gas.
Background technique
Along with improving constantly that energy-saving and emission-reduction require, the natural gas engine that the diesel engine of more and more take is platform development is put on market, and prospect is gratifying.But the little cylinder diameter natural gas engine that at present cylinder diameter is 80～90mm is still vacancy, existing engine piston is because the relation of the various parameters in firing chamber cannot meet active combustion and the low emission of above-mentioned little cylinder diameter natural gas engine.
Model utility content
The purpose of this utility model is to provide the natural gas engine that a kind of applicable cylinder diameter is 80～90mm, can effectively improve the engine piston combustion chamber of natural gas of engine combustion and emission performance.
The technical solution of the utility model is: engine piston combustion chamber of natural gas, be located at engine piston top, the throw of eccentric at center, firing chamber and piston center is e, and its improvements are this firing chamber diameter d=60～68mm, combustion-chamber depth h=12～15mm, bottom, firing chamber transition arc radius R
b=6～10mm, plane transition arc radius R on top of combustion chamber and piston
a=1～2mm, described eccentric distance e=0～5mm.
The utility model is applicable to the natural gas engine that cylinder diameter is 80～90mm, rationally guaranteeing under the prerequisite of firing chamber wall thickness, adjust diameter and the degree of depth of firing chamber, make firing chamber and spark-plug location realize Proper Match, effectively organize mixed gas fully to burn, the combustion and emission performance of motor is improved.Adopt the natural gas engine of this scheme firing chamber, in the situation that adopting catalytic converter, can reach Euro V emissions.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, firing chamber 1 is positioned at the top of piston 2, the eccentric distance e=3mm of both center lines, firing chamber diameter d=65mm, degree of depth h=13mm, bottom transition arc radius R
b=8mm, plane transition arc radius R on top and piston
a=1.5mm.
Claims (1)
1. an engine piston combustion chamber of natural gas, is located at engine piston top, and the throw of eccentric at center, firing chamber and piston center is e, it is characterized in that this firing chamber diameter d=60～68mm, combustion-chamber depth h=12～15mm, bottom, firing chamber transition arc radius R
b=6～10mm, plane transition arc radius R on top of combustion chamber and piston
a=1～2mm, described eccentric distance e=0～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703866.XU CN203560001U (en) | 2013-11-11 | 2013-11-11 | Combustion chamber on piston of natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703866.XU CN203560001U (en) | 2013-11-11 | 2013-11-11 | Combustion chamber on piston of natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560001U true CN203560001U (en) | 2014-04-23 |
Family
ID=50509727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320703866.XU Expired - Lifetime CN203560001U (en) | 2013-11-11 | 2013-11-11 | Combustion chamber on piston of natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603742A (en) * | 2013-11-11 | 2014-02-26 | 一拖(姜堰)动力机械有限公司 | Natural gas engine piston combustion chamber |
-
2013
- 2013-11-11 CN CN201320703866.XU patent/CN203560001U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603742A (en) * | 2013-11-11 | 2014-02-26 | 一拖(姜堰)动力机械有限公司 | Natural gas engine piston combustion chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |