CN108590810B - Water-cooling noise-reducing cooling silencer - Google Patents
Water-cooling noise-reducing cooling silencer Download PDFInfo
- Publication number
- CN108590810B CN108590810B CN201810559574.0A CN201810559574A CN108590810B CN 108590810 B CN108590810 B CN 108590810B CN 201810559574 A CN201810559574 A CN 201810559574A CN 108590810 B CN108590810 B CN 108590810B
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- China
- Prior art keywords
- guide plate
- cavity
- shell assembly
- shell
- assembly
- 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.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 230000003584 silencer Effects 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000002485 combustion reaction Methods 0.000 abstract description 35
- 239000007788 liquid Substances 0.000 description 12
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a water-cooling noise-reducing cooling silencer, which comprises a shell assembly, wherein a first guide plate and a second guide plate which are arranged up and down are arranged in the shell assembly, the first guide plate is L-shaped and is connected with the right side wall of the shell assembly, a gap is reserved between the left end of the first guide plate and the left side wall of the shell assembly, the second guide plate is flat and is connected with the left side wall of the shell assembly, a gap is reserved between the right end of the second guide plate and the right side wall of the shell assembly, the first guide plate and the second guide plate divide the interior of the shell assembly into a first cavity, a second cavity and a third cavity which are arranged from top to bottom, a guide pipe is arranged between the first guide plate and the second guide plate, a water inlet is arranged at the left end of the shell assembly and is communicated with the second cavity, an exhaust port is arranged at the right end of the shell assembly and is communicated with the second cavity, a water inlet and an overflow port are arranged at the top of the shell assembly and is arranged at the bottom of the shell assembly and is communicated with the third cavity. The invention can reduce the temperature and noise of the internal combustion engine.
Description
Technical Field
The invention relates to a water-cooling noise-reducing and temperature-reducing muffler for reducing noise and reducing noise of an internal combustion engine.
Background
With the development of technology, the global climate warming, the air pollution and the noise pollution are continuously improved. The internal combustion engine is an internal combustion engine for combusting diesel oil or gasoline to obtain energy release, and has wide application in industrial and agricultural production. The internal combustion engine consists of a combustion chamber assembly, a power transmission assembly, a machine body, a main bearing, a valve mechanism, a fuel system, a speed regulator, a lubricating system, a cooling system and a starting system. The internal combustion engine generates high heat through compressed air, and then the linear motion of the piston is changed into the rotary motion of the crank through the crankshaft connecting rod mechanism, so that mechanical work is output, and a large amount of heat energy can be generated in the whole operation process. These thermal energy, if not timely discharged and cooled, can be stored inside the diesel engine, which can affect the operating efficiency of the internal combustion engine. The current internal combustion engine usually forms a cycle by intake air and exhaust air, and generates high temperature and high noise while rotating to form mechanical energy due to work formed by compression or ignition of the internal combustion engine. The problems of exhaust emission and the like caused by high heat of an internal combustion engine are also one of the important points. How to reduce temperature and noise and better serve multiple industries is a problem which needs to be solved at present.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a water-cooling noise-reducing and temperature-reducing muffler capable of reducing the temperature and noise of an internal combustion engine.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a water-cooling falls cooling muffler that makes an uproar, includes the casing assembly, be provided with water inlet, gas vent, water inlet and gap and delivery port on the casing assembly, be provided with first guide plate, the second guide plate of upper and lower distribution in the casing assembly, first guide plate is L type and the right side wall of casing assembly and is connected, leave the clearance between the left end of first guide plate and the left side wall of casing assembly, the second guide plate is dull and stereotyped form and is connected with the left side wall of casing assembly, leave the clearance between the right-hand member of second guide plate and the right side wall of casing assembly, first, second guide plate is first cavity, second cavity, the third cavity that arrange from last to lower with the inside separation of casing assembly, be provided with the honeycomb duct between first guide plate and the second guide plate, the honeycomb duct intercommunication first cavity and the third cavity, the water inlet sets up the left end at the casing assembly and with second cavity intercommunication, the gas vent sets up the right-hand member at the casing assembly and communicates with the second cavity, water inlet and setting up at the top of casing assembly and the top intercommunication.
The invention has the beneficial effects that the second cavity of the shell assembly is connected with the exhaust port of the internal combustion engine, the liquid in the first cavity is independent, the liquid in the second cavity directly cools the gas discharged from the exhaust port of the internal combustion engine, the liquid in the first cavity is discharged into the third cavity through the guide pipe, the liquid in the second cavity is finally discharged into the third cavity through the clearance on the right side to be mixed with the liquid discharged into the third cavity from the first cavity, the muffler shell is finally discharged from the water outlet, and the exhaust of the internal combustion engine is directly discharged out of the shell assembly after being cooled. The third cavity is directly connected with a radiating water tank of the internal combustion engine, and a loop is generated after the radiating water tank of the internal combustion engine is mixed, and the loop enters a water inlet of the internal combustion engine again, so that a large loop is formed to reduce the temperature of the silencer shell and the internal combustion engine. The water-cooling noise-reducing and cooling silencer combines the water source of the radiator of the water tank with the existing structure to treat, so that the temperature and noise of the internal combustion engine are reduced, simultaneously, the temperature of the internal combustion engine is reduced due to the reduction of the temperature, the efficiency of mechanical energy is improved, the fuel efficiency is improved, the effect of reducing the fuel consumption is achieved, and multiple purposes can be achieved.
Preferably, the first baffle has a vertical plane parallel to the left side wall of the housing assembly, and the water inlet is aligned with the vertical plane of the first baffle or the second cavity, and the vertical plane enables liquid entering from the water inlet to enter the cooling liquid in the second cavity only from the lower part.
Preferably, the vertical surface is propped against the upper end surface of the shell assembly. Avoiding gas from the exhaust port of the internal combustion engine from entering the first chamber.
Preferably, the exhaust port is provided in the middle of the right end of the housing assembly.
Preferably, a fixed housing duct is provided on the back of the housing assembly, the fixed housing duct being located within the second cavity.
Preferably, the fixed shell pipeline is provided with many according to engine gas vent quantity, and every engine gas vent is provided with two fixed shell pipelines, and many the shell pipeline is split type structure, fixed shell pipeline is parallel with the left side wall of second guide plate, casing assembly.
Preferably, the back of the housing assembly is provided with a fixing bolt. To secure the housing assembly to other components.
Drawings
Fig. 1 is a perspective view of the present embodiment;
Fig. 2 is a front view of the present embodiment;
Fig. 3 is a right side view of the present embodiment;
fig. 4 is a left side view of the present embodiment.
Fig. 5 is a perspective view of the inside of the present embodiment.
In the figure:
1-a housing assembly; 2-a water inlet; 3-exhaust port; 4-a water adding port and an overflow port; 5-a water outlet; 6-a first deflector; 7-a second deflector; 8-gap; 9-a first cavity; 10-a second cavity; 11-a third cavity; 12-vertical plane; 13-a fixed housing conduit; 14-flow guiding pipe.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 1-3, a water-cooling noise-reducing and cooling silencer in this embodiment includes a housing assembly 1, a water inlet 2, an air outlet 3, a water inlet, an overflow 4 and a water outlet 5 are provided on the housing assembly 1, guide plates are provided in the housing to form three cavities, the guide plates include a first guide plate 6 and a second guide plate 7, the first guide plate 6 is located above the second guide plate 7, the first guide plate 6 is L-shaped and connected with the right side wall of the housing assembly 1, the first guide plate 6 has a vertical plane 12 parallel to the left side wall of the housing assembly 1, and the vertical plane 12 is propped against the upper end face of the housing assembly 1. A gap 8 is reserved between the left end of the first guide plate 6 and the left side wall of the shell assembly 1, the second guide plate 7 is in a flat plate shape and is connected with the left side wall of the shell assembly 1, a gap 8 is reserved between the right end of the second guide plate 7 and the right side wall of the shell assembly 1, the first guide plate and the second guide plate divide the interior of the shell assembly 1 into a first cavity 9, a second cavity 10 and a third cavity 11 which are distributed from top to bottom, a guide pipe 14 is arranged between the first guide plate 6 and the second guide plate 7, the guide pipe 14 is communicated with the first cavity 9 and the third cavity 11, the water inlet 2 is arranged at the left end of the shell assembly 1 and is communicated with the second cavity 10, the water inlet 2 is aligned with the vertical surface 12 or the second cavity 10 of the first guide plate 6, the air outlet 3 is arranged at the middle part of the right end of the shell assembly 1 and is communicated with the second cavity 10, the water inlet and the water overflow opening 4 are arranged at the top of the shell assembly 1 and is communicated with the first cavity 9, and the shell water outlet 5 is arranged at the bottom of the shell assembly 1 and is communicated with the third cavity 11.
The back of the shell assembly 1 is provided with a fixed shell pipeline 13, the fixed shell pipeline 13 is positioned in the second cavity 10, the fixed shell pipeline 13 is provided with a plurality of fixed shell pipelines according to the number of engine exhaust ports, each engine exhaust port is provided with two fixed shell pipelines 13, the plurality of shell pipelines 13 are of a split type structure, and the fixed shell pipelines 13 are parallel to the second guide plate 7 and the left side wall of the shell assembly 1.
The method is mainly suitable for the non-road internal combustion engine of the current market brand, can be put into use without a die, and saves cost and time. The exhaust gas of the internal combustion engine enters the second cavity 10 and directly enters the shell assembly 1, the water inlet, the water overflow 4 and the fixed shell pipeline 13 are combined to reduce the temperature, the liquid mixed in the third cavity 11 is directly discharged into the radiator from the water outlet 5 to dissipate heat, and the gas is discharged from the exhaust port 3 of the shell assembly 1, so that the whole shell assembly 1 forms a cycle.
The existing use of the internal combustion engine is changed more widely, and noise and temperature are reduced mainly by cooling the exhaust pipe. The air flue of the shell assembly of the silencer is connected with the exhaust port of the internal combustion engine, liquid in the first cavity is independent, liquid in the second cavity directly cools gas coming out of the exhaust port of the internal combustion engine, liquid in the first cavity is discharged into the third cavity through the guide pipe 14, liquid in the second cavity is finally discharged into the third cavity through a gap on the right side to be mixed with liquid discharged into the third cavity from the first cavity, and finally the silencer shell is discharged from the water outlet. The exhaust gas of the internal combustion engine is directly discharged out of the shell assembly after being cooled. The third cavity is directly connected with a radiating water tank of the internal combustion engine, and a loop is generated after the radiating water tank of the internal combustion engine is mixed, and the radiating water tank enters a water inlet 2 of the internal combustion engine again, so that a large loop is formed to reduce the temperature of the silencer shell and the internal combustion engine. The exhaust temperature is reduced from the original temperature above 400 ℃ to below 80 ℃. The noise was reduced from the original 105dB (A) to 87dB (A).
The invention can reduce noise and temperature under the condition that the internal combustion engine structure is not changed with the original internal combustion engine structure, and has wider application in special industry. For example, the ship can directly cool the silencer by using the starting water pump and the river water pump, and the original water tank is omitted, so that the cost and the volume are reduced. The split water tank can be installed in a special space structure, so that the space of the equipment is reduced, and the heat of the equipment is reduced. The parts related to the water-cooling noise-reducing and temperature-reducing silencer are all made of stainless steel or aluminum metal raw materials by a special process, and can be matched with all non-road internal combustion engines circulating in the current market, so that more popularization and application are achieved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides a cooling muffler of making an uproar falls in water-cooling, includes casing assembly (1), be provided with water inlet (2), gas vent (3), water inlet and gap (4) and delivery port (5) on casing assembly (1), its characterized in that: the utility model discloses a water overflow device, which is characterized in that a first guide plate (6) and a second guide plate (7) which are vertically distributed are arranged in the shell assembly, the first guide plate (6) is L-shaped and is connected with the right side wall of the shell assembly (1), a gap (8) is reserved between the left end of the first guide plate (6) and the left side wall of the shell assembly (1), the second guide plate (7) is flat and is connected with the left side wall of the shell assembly (1), a gap (8) is reserved between the right end of the second guide plate (7) and the right side wall of the shell assembly (1), the first guide plate and the second guide plate divide the interior of the shell assembly (1) into a first cavity (9), a second cavity (10) and a third cavity (11) which are distributed from top to bottom, a guide pipe (14) is arranged between the first guide plate (6) and the second guide plate (7), the guide pipe (14) is communicated with the first cavity (9) and the third cavity (11), the water inlet (2) is arranged at the left end of the shell assembly (1) and is communicated with the right end of the shell assembly (1) and the water overflow port (10) is arranged at the top of the shell assembly (1), the shell water outlet (5) is arranged at the bottom of the shell assembly (1) and is communicated with the third cavity (11); the first guide plate (6) is provided with a vertical surface (12) parallel to the left side wall of the shell assembly (1), and the water inlet (2) is aligned with the vertical surface (12) or the second cavity (10) of the first guide plate (6); the vertical surface (12) is propped against the upper end surface of the shell assembly (1); the back of the shell assembly (1) is provided with a fixing bolt.
2. The water-cooled noise-reducing and temperature-reducing muffler according to claim 1, wherein: the exhaust port (3) is arranged in the middle of the right end of the shell assembly (1).
3. The water-cooled noise-reducing and temperature-reducing muffler according to claim 1, wherein: the back of the shell assembly (1) is provided with a fixed shell pipeline (13), and the fixed shell pipeline (13) is positioned in the second cavity (10).
4. A water cooled noise reducing and cooling muffler as defined in claim 3, wherein: the fixed shell pipeline (13) is provided with many according to engine gas vent quantity, and every engine gas vent is provided with two fixed shell pipelines (13), and many shell pipelines (13) are split type structure, fixed shell pipeline (13) are all parallel with the left side wall of second guide plate (7), casing assembly (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810559574.0A CN108590810B (en) | 2018-06-02 | 2018-06-02 | Water-cooling noise-reducing cooling silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810559574.0A CN108590810B (en) | 2018-06-02 | 2018-06-02 | Water-cooling noise-reducing cooling silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108590810A CN108590810A (en) | 2018-09-28 |
| CN108590810B true CN108590810B (en) | 2024-05-10 |
Family
ID=63630269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810559574.0A Active CN108590810B (en) | 2018-06-02 | 2018-06-02 | Water-cooling noise-reducing cooling silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108590810B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253151A1 (en) * | 2020-06-15 | 2021-12-23 | 刘江生 | Water injection-type automobile muffler |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191128392A (en) * | 1911-12-16 | 1912-09-12 | Gordon Oldfield Houghton | Improvements in or relating to Silencers for Internal Combustion Engines suitable for Marine and the like purposes. |
| US6152258A (en) * | 1999-09-28 | 2000-11-28 | Brunswick Corporation | Exhaust system with silencing and water separation capability |
| KR20010085037A (en) * | 2001-07-24 | 2001-09-07 | 이 주 철 | a muffler for automo bile with cooling apparatus of exhaust gas |
| CN103982276A (en) * | 2014-05-28 | 2014-08-13 | 成都陵川特种工业有限责任公司 | Water-cooled radiation silencer |
| CN204476537U (en) * | 2014-12-18 | 2015-07-15 | 重庆博沃发动机配件制造有限公司 | Water-cooled silencing apparatus |
| CN205370686U (en) * | 2016-01-14 | 2016-07-06 | 浙江幸福航天科技有限公司 | Water -cooled noise eliminator |
| CN206785451U (en) * | 2017-03-31 | 2017-12-22 | 上海科泰电源股份有限公司 | A kind of closing space diesel generating set water cooled silencer |
| CN208486929U (en) * | 2018-06-02 | 2019-02-12 | 无锡固友动力机械有限公司 | Water cooling noise reduction cooling, silencing device |
| CN208587218U (en) * | 2018-07-27 | 2019-03-08 | 四川航天职业技术学院 | A kind of water-cooled exhaust gas muffler |
-
2018
- 2018-06-02 CN CN201810559574.0A patent/CN108590810B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191128392A (en) * | 1911-12-16 | 1912-09-12 | Gordon Oldfield Houghton | Improvements in or relating to Silencers for Internal Combustion Engines suitable for Marine and the like purposes. |
| US6152258A (en) * | 1999-09-28 | 2000-11-28 | Brunswick Corporation | Exhaust system with silencing and water separation capability |
| KR20010085037A (en) * | 2001-07-24 | 2001-09-07 | 이 주 철 | a muffler for automo bile with cooling apparatus of exhaust gas |
| CN103982276A (en) * | 2014-05-28 | 2014-08-13 | 成都陵川特种工业有限责任公司 | Water-cooled radiation silencer |
| CN204476537U (en) * | 2014-12-18 | 2015-07-15 | 重庆博沃发动机配件制造有限公司 | Water-cooled silencing apparatus |
| CN205370686U (en) * | 2016-01-14 | 2016-07-06 | 浙江幸福航天科技有限公司 | Water -cooled noise eliminator |
| CN206785451U (en) * | 2017-03-31 | 2017-12-22 | 上海科泰电源股份有限公司 | A kind of closing space diesel generating set water cooled silencer |
| CN208486929U (en) * | 2018-06-02 | 2019-02-12 | 无锡固友动力机械有限公司 | Water cooling noise reduction cooling, silencing device |
| CN208587218U (en) * | 2018-07-27 | 2019-03-08 | 四川航天职业技术学院 | A kind of water-cooled exhaust gas muffler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108590810A (en) | 2018-09-28 |
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Effective date of registration: 20210113 Address after: No. 300, Youyi North Road, Xishan Economic Development Zone, Wuxi City, Jiangsu Province Applicant after: Wuxi Guyou Power Technology Co.,Ltd. Address before: 214000 Qisheng Road, Yuqi supporting area, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Applicant before: WUXI GOOYO POWER MACHINERY Co.,Ltd. |
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