CN203978597U - The firing chamber of gas machine - Google Patents
The firing chamber of gas machine Download PDFInfo
- Publication number
- CN203978597U CN203978597U CN201420450759.5U CN201420450759U CN203978597U CN 203978597 U CN203978597 U CN 203978597U CN 201420450759 U CN201420450759 U CN 201420450759U CN 203978597 U CN203978597 U CN 203978597U
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- CN
- China
- Prior art keywords
- firing chamber
- radially
- arc
- straight section
- tail end
- 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
Links
- 238000010304 firing Methods 0.000 title claims abstract description 42
- 230000007704 transition Effects 0.000 claims abstract description 16
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 210000003141 lower extremity Anatomy 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 13
- 239000000567 combustion gas Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- VQKWAUROYFTROF-UHFFFAOYSA-N arc-31 Chemical compound O=C1N(CCN(C)C)C2=C3C=C4OCOC4=CC3=NN=C2C2=C1C=C(OC)C(OC)=C2 VQKWAUROYFTROF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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 utility model discloses a kind of firing chamber of gas machine, this firing chamber is located at piston crown, and this firing chamber comprises: bottom surface; Sidewall, it is with respect to the outward-dipping setting in bottom surface, and sidewall consists of some training walls that connect successively, and training wall comprises: straight section radially, its head end is to the central protuberance of firing chamber; Transition straight section, its head end is connected with the tail end of straight section radially; Arc section, it curves inwardly, and the head end of arc section is connected with the tail end of transition straight section; Segmental arc radially, its head end is connected with the tail end of arc section, and radially the tail end of segmental arc to the central protuberance of firing chamber; Wherein the head end of the tail end of the radially segmental arc of training wall and the radially straight section of adjacent training wall adopts circular arc to be connected and then forms radial protrusion.Rational air motion can be organized in this firing chamber, and the velocity of propagation of Optimizing Combustion turbulence intensity, combustion flame makes motor fuel be able to sufficient burning, reduces exhaust emission, improves motor levels of emissions.
Description
Technical field
The utility model relates to field of internal combustion engine, particularly a kind of firing chamber of gas machine.
Background technique
At present, the pollution problem of nature obtains all the more people and payes attention to, and associated drain Laws & Regulations is corresponding upgraded and perfect also.In order to meet the provisions of laws and regulations of discharge, the pollution of minimizing to nature, generally take to install triple-effect catalytic unit equivalent proportion combustion technology additional at common gases machine chamber structure (U-shaped structure), yet, the deficiency of equivalent proportion burning clearly, because combustion temperature is too high on the one hand, heat load is larger, easily there is pinking, compression ratio increase rate is limited, adopt supercharging technology further to improve the insufficient space of engine power, because the pumping loss causing due to air inlet restriction under partial load condition is too high on the other hand, Economy is poor, therefore in order better to utilize the technology of rock gas equivalent proportion burning, need to coordinate reduction pumping loss and the combustion temperature of loading greatly such as EGR and miller cycle, and the diluting effect of EGR and rock gas self kindling temperature is high, the slow feature of rate of burning is all unfavorable for the fast propagation of catch fire stable and the flame of rock gas self.So the chamber structure of common gases machine (U-shaped structure) has been difficult to realize further perfect combustion, to reduce motor discharge.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of firing chamber of gas machine, can organize rational air motion, the velocity of propagation of Optimizing Combustion turbulence intensity, combustion flame, makes motor fuel be able to sufficient burning, reduce exhaust emission, improve motor levels of emissions.
For achieving the above object, the utility model provides a kind of firing chamber of gas machine, and this firing chamber is located at piston crown, and this firing chamber comprises: bottom surface; Sidewall, it is with respect to the outward-dipping setting in bottom surface, and sidewall consists of some training walls that connect successively, and training wall comprises: straight section radially, its head end is to the central protuberance of firing chamber; Transition straight section, its head end is connected with the tail end of straight section radially; Arc section, it curves inwardly, and the head end of arc section is connected with the tail end of transition straight section; Segmental arc radially, its head end is connected with the tail end of arc section, and radially the tail end of segmental arc to the central protuberance of firing chamber; Wherein the head end of the tail end of the radially segmental arc of training wall and the radially straight section of adjacent training wall adopts circular arc to be connected and then forms radial protrusion.
Preferably, the fillet radius that circular arc connects is 3.5-6mm.
Preferably, the radius of arc of arc section is greater than 8mm.
Preferably, the lower limb of the top edge of training wall and the end face of piston crown and training wall and bottom surface all adopt round-corner transition.
Preferably, the head end of transition straight section adopts circular arc to be connected with the tail end of straight section radially.
Preferably, sidewall is connected in sequence by four training walls.
Compared with prior art, the utlity model has following beneficial effect: this firing chamber adopts some training walls to form the sidewall of firing chamber, can organize rational air motion, the velocity of propagation of Optimizing Combustion turbulence intensity and combustion flame, the mechanisms such as the turbulent flow of enhancing combustion gas, collision, strengthen the abundant burning of fuel, and strengthening motor fuel fully burns, reduce exhaust emission, improve motor emission standard.
Accompanying drawing explanation
Fig. 1 is according to the cross-sectional schematic of the firing chamber of gas machine of the present utility model;
Fig. 2 is according to the schematic top plan view of the firing chamber of gas machine of the present utility model.
Main description of reference numerals:
1-piston crown, 2-bottom surface, 3-sidewall, 31-is straight section radially, 32-transition straight section, 33-arc section, 34-is segmental arc radially, 35-radial protrusion, 4-end face.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
As shown in Figures 1 and 2, according to the firing chamber of a kind of gas machine of the utility model embodiment, this firing chamber is located at piston crown 1, this firing chamber comprises bottom surface 2 and sidewall 3, wherein sidewall 3 is with respect to the outward-dipping setting in bottom surface 2, adopt the chamber structure of the open type of 90 ° of the sidewall 3 of firing chamber and 2 one-tenth of the bottom surfaces > of firing chamber, sidewall 3 consists of some training walls that connect successively, training wall comprises radially straight section 31, transition straight section 32, arc section 33 and radially segmental arc 34, particularly, radially the head end of straight section 31 is to the central protuberance of firing chamber, the head end of transition straight section 32 is connected with the tail end of straight section 31 radially, arc section 33 curves inwardly, and the head end of arc section 33 is connected with the tail end of transition straight section 32, radially the head end of segmental arc 34 is connected with the tail end of arc section 33, and radially the tail end of segmental arc 34 is to the central protuberance of firing chamber, now, the tail end of the radially segmental arc 31 of training wall adopts circular arc to be connected with the head end of the radially straight section 34 of adjacent training wall and then forms radial protrusion 35, like this, the sidewall being connected in sequence by some training walls forms dish, wherein, the fillet radius that circular arc connects can be 3.5-6mm, the radius of arc of arc section 33 is greater than 8mm, also have, the head end of transition straight section 31 adopts circular arc to be connected with the tail end of straight section 32 radially.In a word, the head and the tail of each linkage section of training wall adopt level and smooth transition to connect, and arc section all adopts tangent mode to be connected with straightway or arc section with arc section.In addition, the end face 4 of the top edge of training wall and piston crown 1 and the lower limb of training wall and bottom surface 2 all adopt round-corner transition, like this, training wall can couple together the bottom surface of the end face of firing chamber 4 and firing chamber 2, and then guarantee that whole firing chamber becomes flow guide structure, impel combustion gas to produce stronger air motion in combustion process, the mechanisms such as the turbulent flow of enhancing combustion gas, collision, strengthen the abundant burning of fuel.
In the present embodiment, sidewall 3 adopts four sections of training walls to form, four sections of training walls form centrosymmetric structure (non-axisymmetric), after mixing with air, combustion gas along training wall, rotates to form turbulent flow in this firing chamber of son, the design of radial protrusion 35, the mechanical collision that increases mixed gas, further promotes combustion gas mixing effect.
In a word, this firing chamber adopts unlimited dish, and the sidewall of firing chamber has some training walls, can organize rational air motion, the velocity of propagation of Optimizing Combustion turbulence intensity and combustion flame, strengthens motor fuel and fully burns, reduce exhaust emission, improve motor emission standard.
The aforementioned description to concrete exemplary of the present utility model is for the object with illustration is described.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present utility model and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present utility model and various selection and change.Scope of the present utility model is intended to be limited by claims and equivalents thereof.
Claims (6)
1. a firing chamber for gas machine, this firing chamber is located at piston crown, it is characterized in that, and this firing chamber comprises:
Bottom surface; And
Sidewall, it is with respect to the outward-dipping setting in described bottom surface, and described sidewall consists of some training walls that connect successively, and described training wall comprises:
Straight section radially, its head end is to the central protuberance of firing chamber;
Transition straight section, its head end is connected with the tail end of described radially straight section;
Arc section, it curves inwardly, and the head end of described arc section is connected with the tail end of described transition straight section; And
Segmental arc radially, its head end is connected with the tail end of described arc section, and the tail end of described radially segmental arc is to the central protuberance of firing chamber;
The tail end of the radially segmental arc of wherein said training wall adopts circular arc to be connected with the head end of the radially straight section of adjacent training wall and then forms radial protrusion.
2. the firing chamber of gas machine according to claim 1, is characterized in that, the fillet radius that described circular arc connects is 3.5-6mm.
3. the firing chamber of gas machine according to claim 1, is characterized in that, the radius of arc of described arc section is greater than 8mm.
4. the firing chamber of gas machine according to claim 1, is characterized in that, lower limb and the described bottom surface of the top edge of described training wall and the end face of described piston crown and described training wall all adopt round-corner transition.
5. the firing chamber of gas machine according to claim 1, is characterized in that, the head end of described transition straight section adopts circular arc to be connected with the tail end of described radially straight section.
6. the firing chamber of gas machine according to claim 1, is characterized in that, described sidewall is connected in sequence by four training walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450759.5U CN203978597U (en) | 2014-08-12 | 2014-08-12 | The firing chamber of gas machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450759.5U CN203978597U (en) | 2014-08-12 | 2014-08-12 | The firing chamber of gas machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978597U true CN203978597U (en) | 2014-12-03 |
Family
ID=51976054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420450759.5U Expired - Fee Related CN203978597U (en) | 2014-08-12 | 2014-08-12 | The firing chamber of gas machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153869A (en) * | 2014-08-12 | 2014-11-19 | 广西玉柴机器股份有限公司 | Combustor of gas machine |
| CN105464833A (en) * | 2015-12-30 | 2016-04-06 | 广西玉柴机器股份有限公司 | Combustion chamber of diesel engine |
-
2014
- 2014-08-12 CN CN201420450759.5U patent/CN203978597U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153869A (en) * | 2014-08-12 | 2014-11-19 | 广西玉柴机器股份有限公司 | Combustor of gas machine |
| CN105464833A (en) * | 2015-12-30 | 2016-04-06 | 广西玉柴机器股份有限公司 | Combustion chamber of diesel engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 |