CN110107900B - Gas mixing burner - Google Patents
Gas mixing burner Download PDFInfo
- Publication number
- CN110107900B CN110107900B CN201910442516.4A CN201910442516A CN110107900B CN 110107900 B CN110107900 B CN 110107900B CN 201910442516 A CN201910442516 A CN 201910442516A CN 110107900 B CN110107900 B CN 110107900B
- Authority
- CN
- China
- Prior art keywords
- fire
- annular
- gas mixing
- burner
- pipe
- 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.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 210000000038 chest Anatomy 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims 2
- 239000002737 fuel gas Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/84—Flame spreading or otherwise shaping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention discloses a gas mixing burner which comprises a secondary air chamber, a mixing chamber sleeved in the middle of the secondary air chamber, a flow limiting pipe sleeved in the middle of the mixing chamber, a fire cover assembly arranged on the flow limiting pipe in a covering mode, and a mixing pipe communicated with the side part of the mixing chamber through the secondary air chamber, wherein the fire cover assembly comprises a top cover, a plurality of annular fire dividing pieces and an annular gasket which are overlapped at intervals, arc-shaped grooves which are outwards rotated are uniformly distributed on the annular fire dividing pieces, and arc-shaped fire holes which are outwards rotated are formed between the annular fire dividing pieces and the annular gasket. The burner has the advantages of stable flame combustion and higher thermal efficiency.
Description
Technical Field
The invention relates to a combustor, in particular to a gas mixing combustor.
Background
The gas burner is used as a living tool to gradually blend into the life of people, and the gas outlet of the gas burner is generally arranged at the upper end of the burner or on the side surface of the burner at present, and because gas is directly sprayed out from the gas outlet, tempering and buzzing phenomena can not be avoided, the gas combustion is uneven, the uneven heat distribution of the burner is easily caused, the flame combustion is unstable, the influence of the external environment is easily caused, the heating effect of the burner on the cooker is influenced, the thermal efficiency of the burner is low, and the use experience of a user is influenced. Accordingly, there is a need for improvements in the art to avoid the disadvantages of the prior art.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provide a combustor with stable combustion and high thermal efficiency.
The invention is realized by the following technical scheme: the utility model provides a gas mixing burner, includes the overgrate breech, overlaps to be located the mixed thorax in overgrate breech middle part, cover are located the restriction pipe in mixed thorax middle part, lid are located fire lid subassembly on the restriction pipe and pass the overgrate breech with the mixed pipe of mixed thorax lateral part intercommunication, fire lid subassembly includes top cap and a plurality of interval superimposed annular fire piece and ring gasket that divides, the equipartition has rotatory outside arc recess on the annular fire piece that divides, annular fire piece that divides with form rotatory outside arc fire hole between the ring gasket.
Further, a coil spring is arranged in the flow limiting pipe, and the coil spring extends to the bottom of the mixing chamber.
Further, a plurality of secondary oxygen supply dispersing holes are formed in the top of the secondary air chamber, and the secondary oxygen supply dispersing holes are located below the arc-shaped fire holes.
Further, a secondary oxygen supply hole is formed in the bottom of the secondary air chamber.
Further, an annular fire-blocking ring is arranged on the outer side of the fire cover assembly, and a combustion chamber is formed between the fire cover assembly and the annular fire-blocking ring.
Further, an ignition needle and a normally open flame are arranged at the top of the secondary breech and are positioned below the arc-shaped flame holes.
Further, the inner diameter and the outer diameter of the annular fire dividing piece are matched with the inner diameter and the outer diameter of the annular gasket, and the inner diameter of the current limiting pipe is matched with the inner diameters of the annular fire dividing piece and the annular gasket.
Further, the inner diameter of the flow limiting pipe is matched with the outer diameter of the spiral spring.
Further, one end of the mixing pipe is communicated with the side part of the mixing chamber, a nozzle hole is formed in the other end of the mixing pipe, and a mixing three-way air inlet hole is formed in the vicinity of the nozzle hole.
Further, the top cover, the annular fire dividing piece and the annular gasket are all provided with screw mounting holes, the peripheral wall of the top of the current limiting pipe is provided with a first flange, the first flange is provided with screw mounting holes, the peripheral wall of the top of the mixing chamber is provided with a second flange, the second flange is provided with screw mounting holes, and the top cover, the annular fire dividing piece, the annular gasket and the current limiting pipe are mounted on the top of the mixing chamber through screws and nuts.
Compared with the prior art, the invention avoids backfire and buzzing phenomena of the burner by forming the arc fire hole which rotates outwards between the annular fire dividing piece and the annular gasket, ensures stable combustion of fuel gas and solves the problems of unstable combustion and low thermal efficiency of the fuel gas.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of a gas mixing burner according to the present invention;
FIG. 2 is an exploded view of the gas mixing burner of the present invention;
FIG. 3 is a top view of the gas mixing burner of the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a schematic view of a ring-shaped flame dividing plate of the gas mixing burner of the present invention;
FIG. 6 is a schematic view of another annular flame dividing plate of the gas mixing burner of the present invention.
In the figure: 1-mixing chamber; 2-a flow limiting pipe; 3-fire lid assembly; 4-mixing tube; 5-top cover; 6-annular fire dividing pieces; 7-an annular gasket; 8-arc-shaped grooves; 9-arc fire holes; 10-coil springs; 11-secondary oxygen supply dispersion holes; 12-a secondary oxygen supply hole; 13-an annular firestop ring; 14-an ignition needle; 15-usual fire; 16-secondary air chamber; 17-screws; 18-a nut; 19-nozzle holes; 20-mixing a three-way air inlet; 21-combustion chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention relates to a gas mixing burner, which is shown in fig. 1 to 6, and comprises a secondary air chamber 16, a mixing chamber 1 sleeved in the middle of the secondary air chamber 16, a flow limiting pipe 2 sleeved in the middle of the mixing chamber 1, a fire cover component 3 covered on the flow limiting pipe 2 and a mixing pipe 4 communicated with the side part of the mixing chamber 1 through the secondary air chamber 16, wherein the fire cover component 3 comprises a top cover 5, a plurality of annular fire dividing pieces 6 and an annular gasket 7 which are overlapped at intervals, arc-shaped grooves 8 which are outwards rotated are uniformly distributed on the annular fire dividing pieces 6, and arc-shaped fire holes 9 which are outwards rotated are formed between the annular fire dividing pieces 6 and the annular gasket 7. The annular fire dividing sheet 6 can be a metal sheet which is formed by pressing metal and uniformly provided with the arc-shaped grooves 8 which rotate outwards, or can be a metal block which is formed by die casting metal and uniformly provided with the arc-shaped grooves 8 which rotate outwards. The overlapping of the annular gaskets 7 in the fire cover assembly 3 can determine the overlapping positions and the number of the annular gaskets 7 according to the specific shape of the annular fire dividing pieces 6 so as to ensure that arc fire holes 9 which rotate outwards are formed between the annular fire dividing pieces 6 and the annular gaskets 7. The arc fire hole 9 which is outwards rotated is formed between the annular fire dividing piece 6 and the annular gasket 7, so that the backfire and buzzing phenomena of the burner are avoided, the stable combustion of fuel gas is ensured, and the problems of unstable combustion and low thermal efficiency of the fuel gas are solved.
The coil spring 10 is arranged in the flow limiting pipe 2, and the coil spring 10 extends to the bottom of the mixing chamber 1, so that further full mixing of fuel gas is facilitated, and the combustion efficiency of the combustor is improved.
The top of the secondary air chamber 16 is provided with a plurality of secondary oxygen supply dispersing holes 11, the secondary oxygen supply dispersing holes 11 are positioned below the arc-shaped fire holes 9, and through secondary dispersed oxygen supply, the full combustion of fuel gas is ensured, and the heat efficiency of the burner is improved.
The bottom of the secondary air chamber 16 is provided with a secondary oxygen supply hole 12, the secondary oxygen supply is in an active mode, hot air or normal-temperature air is needed to be provided in proportion according to the size of firepower, the problem of oxygen deficiency during flame combustion is effectively solved, and the secondary oxygen supply hole 12 provides sufficient air for combustion.
The outside of the fire cover component 3 is provided with an annular fire stop ring 13, a combustion chamber 21 is formed between the fire cover component 3 and the annular fire stop ring 13, and the combustion chamber 21 maintains normal combustion, so that the combustion efficiency of the burner is ensured.
The top of the secondary breeze 16 is provided with an ignition needle 14 and a normal fire type 15, the ignition needle 14 and the normal fire type 15 are positioned below the arc-shaped fire hole 9, the ignition needle 14 integrates the ignition and detection functions, and the ignition needle 14 and the normal fire type 15 are positioned below the arc-shaped fire hole 9, so that the normal ignition and flame combustion of the burner are facilitated.
The inner diameter and the outer diameter of the annular fire dividing piece 6 are matched with the inner diameter and the outer diameter of the annular gasket 7, and the inner diameter of the current limiting pipe 2 is matched with the inner diameters of the annular fire dividing piece 6 and the annular gasket 7.
The inner diameter of the flow restrictor 2 is adapted to the outer diameter of the helical spring 10.
One end of the mixing tube 4 is communicated with the side part of the mixing chamber 1, the other end of the mixing tube 4 is provided with a nozzle hole 19, and a mixing three-way air inlet hole 20 is arranged near the nozzle hole 19.
The top cover 5, the annular fire dividing piece 6 and the annular gasket 7 are all provided with screw mounting holes, the peripheral wall at the top of the flow limiting pipe 2 is provided with a first flange, the first flange is provided with screw mounting holes, the peripheral wall at the top of the mixing chamber 1 is provided with a second flange, the second flange is provided with screw mounting holes, and the top cover 5, the annular fire dividing piece 6, the annular gasket 7 and the flow limiting pipe 2 are mounted on the top of the mixing chamber 1 through screws 17 and nuts 18.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. A gas mixing burner, characterized in that: including the overgrate breech, cover locate the mixed thorax in overgrate breech middle part, cover are located the restriction pipe in mixed thorax middle part, cover are located fire lid subassembly on the restriction pipe and pass the overgrate breech with the mixed pipe of mixed thorax lateral part intercommunication, fire lid subassembly includes top cap and a plurality of interval superimposed annular fire piece and annular packing ring that divides, the equipartition has rotatory outside arc recess on the annular fire piece that divides, annular fire piece with form rotatory outside arc fire hole between the annular packing ring.
2. The gas mixing burner of claim 1, wherein: a spiral spring is arranged in the flow limiting pipe and extends to the bottom of the mixing chamber.
3. The gas mixing burner of claim 1, wherein: the top of the secondary breech is provided with a plurality of secondary oxygen supply dispersing holes, and the secondary oxygen supply dispersing holes are positioned below the arc-shaped fire holes.
4. The gas mixing burner of claim 1, wherein: the bottom of the secondary air chamber is provided with a secondary oxygen supply hole.
5. The gas mixing burner of claim 1, wherein: an annular fire-blocking ring is arranged on the outer side of the fire cover assembly, and a combustion chamber is formed between the fire cover assembly and the annular fire-blocking ring.
6. The gas mixing burner of claim 1, wherein: the top of the secondary breech is provided with an ignition needle and a normally open flame, and the ignition needle and the normally open flame are positioned below the arc-shaped flame hole.
7. The gas mixing burner of claim 1, wherein: the inner diameter and the outer diameter of the annular fire dividing piece are matched with the inner diameter and the outer diameter of the annular gasket, and the inner diameter of the current limiting pipe is matched with the inner diameters of the annular fire dividing piece and the annular gasket.
8. The gas mixing burner of claim 2, wherein: the inner diameter of the flow limiting pipe is matched with the outer diameter of the spiral spring.
9. The gas mixing burner of claim 1, wherein: one end of the mixing pipe is communicated with the side part of the mixing chamber, a nozzle hole is formed in the other end of the mixing pipe, and a mixing three-way air inlet hole is formed near the nozzle hole.
10. The gas mixing burner of claim 1, wherein: the top cover, the annular fire dividing piece and the annular gasket are all provided with screw mounting holes, the peripheral wall of the top of the current limiting pipe is provided with a first flange, the first flange is provided with screw mounting holes, the peripheral wall of the top of the mixing chamber is provided with a second flange, the second flange is provided with screw mounting holes, and the top cover, the annular fire dividing piece, the annular gasket and the current limiting pipe are mounted on the top of the mixing chamber through screws and nuts.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442516.4A CN110107900B (en) | 2019-05-25 | 2019-05-25 | Gas mixing burner |
| PCT/CN2019/103491 WO2020237883A1 (en) | 2019-05-25 | 2019-08-30 | Gas mixing burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442516.4A CN110107900B (en) | 2019-05-25 | 2019-05-25 | Gas mixing burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107900A CN110107900A (en) | 2019-08-09 |
| CN110107900B true CN110107900B (en) | 2023-10-27 |
Family
ID=67492242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910442516.4A Active CN110107900B (en) | 2019-05-25 | 2019-05-25 | Gas mixing burner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110107900B (en) |
| WO (1) | WO2020237883A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107900B (en) * | 2019-05-25 | 2023-10-27 | 杨锡奇 | Gas mixing burner |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042414A (en) * | 2001-07-26 | 2003-02-13 | Paloma Ind Ltd | Surface combustion burner |
| EP2189718A2 (en) * | 2008-11-21 | 2010-05-26 | BSH Bosch und Siemens Hausgeräte GmbH | Burner fire cap for gas cooktop and burner using the same |
| CN203273966U (en) * | 2013-05-14 | 2013-11-06 | 付冬文 | Burner for gas stove |
| CN203703968U (en) * | 2014-01-20 | 2014-07-09 | 华帝股份有限公司 | Burner for range |
| WO2014127727A1 (en) * | 2013-02-20 | 2014-08-28 | 浙江美大实业股份有限公司 | Air-blowing full, pre-mixed integrated stove |
| CN107525072A (en) * | 2017-09-11 | 2017-12-29 | 陈丽霞 | The fire cover of high thermal efficiency and the burner using the fire cover |
| CN206958913U (en) * | 2017-05-23 | 2018-02-02 | 华帝股份有限公司 | Steady flame combustor |
| CN108006622A (en) * | 2017-06-24 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of burner with high efficiency |
| CN208237867U (en) * | 2018-05-09 | 2018-12-14 | 厦门市裕阳厨房设备有限公司 | A kind of flat porous gas burner |
| CN208735629U (en) * | 2018-08-07 | 2019-04-12 | 麦冠彬 | Compound burner |
| CN210004399U (en) * | 2019-05-25 | 2020-01-31 | 江门奇焰节能燃气具有限公司 | gas mixing burner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305557Y (en) * | 1997-07-29 | 1999-01-27 | 方针 | Gas burner |
| KR100778716B1 (en) * | 2006-07-07 | 2007-11-22 | 주식회사 경동나비엔 | Flame structure of gas burner |
| CN201014438Y (en) * | 2006-12-22 | 2008-01-30 | 丹东太智厨房设备有限公司 | Blast premixed high-efficiency gas burner |
| CN103375799A (en) * | 2012-04-13 | 2013-10-30 | 广州市红日燃具有限公司 | Infrared gas burner |
| CN109751598B (en) * | 2019-03-14 | 2024-08-16 | 上海金巨源热能技术有限公司 | Combustor with four-light two-thick linear array fire hole cores |
| CN110107900B (en) * | 2019-05-25 | 2023-10-27 | 杨锡奇 | Gas mixing burner |
-
2019
- 2019-05-25 CN CN201910442516.4A patent/CN110107900B/en active Active
- 2019-08-30 WO PCT/CN2019/103491 patent/WO2020237883A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042414A (en) * | 2001-07-26 | 2003-02-13 | Paloma Ind Ltd | Surface combustion burner |
| EP2189718A2 (en) * | 2008-11-21 | 2010-05-26 | BSH Bosch und Siemens Hausgeräte GmbH | Burner fire cap for gas cooktop and burner using the same |
| WO2014127727A1 (en) * | 2013-02-20 | 2014-08-28 | 浙江美大实业股份有限公司 | Air-blowing full, pre-mixed integrated stove |
| CN203273966U (en) * | 2013-05-14 | 2013-11-06 | 付冬文 | Burner for gas stove |
| CN203703968U (en) * | 2014-01-20 | 2014-07-09 | 华帝股份有限公司 | Burner for range |
| CN206958913U (en) * | 2017-05-23 | 2018-02-02 | 华帝股份有限公司 | Steady flame combustor |
| CN108006622A (en) * | 2017-06-24 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of burner with high efficiency |
| CN107525072A (en) * | 2017-09-11 | 2017-12-29 | 陈丽霞 | The fire cover of high thermal efficiency and the burner using the fire cover |
| CN208237867U (en) * | 2018-05-09 | 2018-12-14 | 厦门市裕阳厨房设备有限公司 | A kind of flat porous gas burner |
| CN208735629U (en) * | 2018-08-07 | 2019-04-12 | 麦冠彬 | Compound burner |
| CN210004399U (en) * | 2019-05-25 | 2020-01-31 | 江门奇焰节能燃气具有限公司 | gas mixing burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110107900A (en) | 2019-08-09 |
| WO2020237883A1 (en) | 2020-12-03 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190814 Address after: 529400 Room 601, No. 71, Nandi Middle Road, Enping City, Jiangmen City, Guangdong Province Applicant after: Yang Xiqi Address before: 529400 Garage No. 71, Nandi Zhong Road, Enping City, Jiangmen City, Guangdong Province Applicant before: Jiangmen Qiyan Energy-saving Gas Utensils Co.,Ltd. |
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| GR01 | Patent grant |