CN109404184B - Suction type emission reduction carrying device for gasoline engine - Google Patents
Suction type emission reduction carrying device for gasoline engine Download PDFInfo
- Publication number
- CN109404184B CN109404184B CN201811582305.2A CN201811582305A CN109404184B CN 109404184 B CN109404184 B CN 109404184B CN 201811582305 A CN201811582305 A CN 201811582305A CN 109404184 B CN109404184 B CN 109404184B
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- China
- Prior art keywords
- oil
- air inlet
- storage tank
- combustion improver
- bolt
- 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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- 230000009467 reduction Effects 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 36
- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000005341 toughened glass Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000000443 aerosol Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical class O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
Abstract
A suction emission reduction mounting device for a gasoline engine, comprising: the device comprises an oil storage tank, an oil injection bolt, an oil injection port, a lamp core rope, an oil outlet, a fixing bolt, an observation pipe, a conversion joint, an oil outlet pipe and a three-way valve, wherein the device is arranged in an automobile engine bin, the three-way valve is used for connecting the outlet end of a solenoid valve of the carbon tank with an air inlet manifold, and an air inlet regulating valve on the oil injection bolt is matched with the siphon effect of the lamp core rope in the observation pipe to stably and efficiently suck combustion improver in the oil storage tank into the air inlet manifold of the engine to be mixed with air, so that the combustion efficiency of engine fuel is improved.
Description
Technical Field
The invention relates to the field of automobile accessories, in particular to a suction type emission reduction carrying device for a gasoline engine.
Background
The heat efficiency of the main stream automobile core gasoline engine in the market is only about 30% and the combustion efficiency is about 35%, which means that most of heat energy which is not converted and is invalid is emitted after the oil mixture is formed in the cylinder diameter by the oil injection of the oil injection nozzle and the air introduced by the air inlet manifold is ignited, and the waste gas and harmful substances such as carbon monoxide generated by the insufficiently combusted fuel are discharged into the atmosphere from the tail gas exhaust pipe.
With the manufacturing technology of the existing engine, the combustion efficiency is difficult to further improve from the structure of the engine, so that how to reduce the exhaust emission becomes an important topic of the current public concern, the current stage is carried out to add ethanol gasoline into gasoline to reduce the exhaust emission or use a combustion improver to assist the combustion of the gasoline engine to fully reduce the content of harmful substances in the exhaust, but the emission reduction effect of adding the ethanol gasoline is not ideal, and the emission reduction effect of about 30% can be realized at most; the auxiliary combustion improver is adopted, so that the carrying equipment for adding the combustion improver is needed, the circuit or structural distribution of the engine is possibly needed to be changed by adding the equipment, and the equipment for providing the combustion improver for a long time stably generally needs to be large in size and complex in structure.
Therefore, how to stably and effectively increase the combustion efficiency of the engine fuel by using simple equipment and reduce the content of harmful substances in tail gas is an important challenge in the current automobile and energy-saving and environment-friendly industries.
Disclosure of Invention
The invention aims to provide an emission reduction carrying device for a gasoline engine, which can stably and efficiently provide combustion improver for the engine.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A suction emission reduction mounting device for a gasoline engine, comprising: the oil storage tank is characterized by comprising an oil storage tank, an oil injection bolt, an oil injection port, a lamp core rope, an oil outlet, a fixing bolt, an observation pipe, a switching joint, an oil outlet pipe and a three-way valve, wherein the oil injection port and the oil outlet are arranged at the top of the oil storage tank, threads are arranged on the inner wall of the oil injection port, the oil injection bolt is in threaded connection with the oil injection port, the lamp core rope is inserted into the oil storage tank from the oil outlet to the bottom, the other end of the lamp core rope is inserted into the observation pipe, the observation pipe is fixedly connected with the oil outlet pipe, the other end of the observation pipe is connected with the oil outlet pipe through the switching joint, the other end of the oil outlet pipe is connected with the three-way valve, and the fixing bolt penetrates through the observation pipe and is fixed with the lamp core rope.
The oiling bolt is composed of the following components: the air inlet adjusting valve is fixedly connected with the top of the locking screw, the air inlet end of the air inlet adjusting valve is provided with a filter element, the air inlet hole penetrates through the center of the locking screw from top to bottom, the air inlet hole is in butt joint with the air outlet end of the air inlet adjusting valve, the valve port of the air inlet adjusting valve is communicated with the atmosphere, and the anti-leakage gasket is sleeved at the bottom of the locking screw.
The observation tube is made of toughened glass and is arc-shaped.
The observation tube is made of transparent plastic and is arc-shaped.
Working principle:
The three-way valve of the suction type emission reduction carrying device for the gasoline engine is arranged between the outlet end of a carbon tank electromagnetic valve of a vehicle and the inlet end of a vacuum tube of an air inlet manifold, is respectively connected with an original pipeline, the other end of the three-way valve is connected with an oil outlet pipe, when the engine is started to run, the combustion improver in the oil storage tank is transferred (or gradient transferred) by utilizing the negative pressure suction force generated in the air inlet manifold and the siphon effect (or capillary effect) of a lamp core rope, and meanwhile, the air inlet regulating valve on a locking screw is used for regulating the air inlet amount to form pressure difference with the negative pressure at the bottom in an observation tube, the combustion improver in the oil storage tank is sucked into the observation pipe along the wick rope to realize pressure transfer of the combustion improver, under the action of negative pressure suction generated by the air inlet manifold, the combustion improver which forms an aerosol state after being siphoned by the wick rope is sent into the air inlet manifold through the observation pipe and the oil outlet pipe to be mixed with air, when each cylinder of the engine works, mixed gas is sucked in, mixed oil gas in the cylinder is combusted more fully, the purpose of energy saving and emission reduction is achieved, and when the combustion improver in the oil storage tank is exhausted, a user can screw the oil injection bolt again after injecting the combustion improver from the oil injection port by unscrewing the oil injection bolt.
The functions of the main components are as follows:
The oil storage tank is used for storing the combustion improver and is provided with an oil filling port and an oil outlet, and the device is easy to install in an automobile engine bin due to the simple structure.
The oiling bolt, the oiling bolt has air inlet governing valve, inlet port and filter core, so can play the regulation negative pressure effect in, and the filter core of air inlet end can filter the impurity in the air, and the oiling bolt is connected with the oiling mouth on the oil storage tank, and the screwing can the oiling, screws and can prevent combustion improver leakage or by the pollution, simplifies the oiling process.
The wick rope realizes the concentration transfer of the combustion improver in the oil storage tank by utilizing the siphon effect (or capillary effect) of the wick rope, and can continuously and stably bring the combustion improver in the oil storage tank into the observation tube along the wick rope.
The fixed bolt is used for fixing the positions of the lamp core rope and the observation tube, so that the lamp core rope is prevented from shifting in the observation tube due to the action of negative pressure, combustion improver at the bottom layer cannot be pumped, and the emission reduction effect of equipment is affected.
The observation tube is made of toughened glass or transparent plastic, has good oil resistance and heat resistance, and is convenient for a user to observe the service condition of the lamp core rope and the suction condition of the combustion improver.
The adapter is used for connecting the observation pipe and the oil outlet pipe, most of the oil outlet pipes are made of rubber, and the adapter is used for enabling the equipment to adapt to the rubber oil outlet pipes with various sizes.
And the three-way valve is used for connecting a pipeline between the suction type emission reduction carrying device for the gasoline engine and the outlet end of the original carbon tank electromagnetic valve of the automobile and the inlet end of the vacuum tube of the air inlet manifold, and the negative pressure generated by the air inlet manifold is used for sending the combustion improver into the engine.
The application has the advantages that:
1. the invention has simple structure, small volume, easy installation and maintenance, and does not need to greatly change the component structure and circuit layout of the engine and related equipment.
According to the invention, the lamp core rope is matched with the oiling bolt with the air inlet regulating valve, the effect of stably providing the combustion improver for the gasoline engine is realized by utilizing the siphon effect of the lamp core rope and the pressure difference effect of the air inlet regulating valve, and the problem that the combustion improver cannot be provided for the gasoline engine in time due to insufficient suction or blockage and the like is avoided, so that the emission reduction effect cannot be realized.
According to the invention, the fixing bolt is additionally arranged between the lamp core rope and the observation tube, so that the lamp core rope can be ensured not to be shifted due to negative pressure to influence the use of equipment, and the lamp core rope can be easily taken out when the lamp core rope needs to be replaced.
The invention is made of toughened glass or transparent plastic, has good heat and oil resistance, and a user can observe the oil absorption condition and the service condition of the wick rope through the observation tube, the purpose of the arc-shaped observation tube with a certain radian is to match the siphon effect of the wick rope, and the backflow of the combustion improver can be prevented.
The invention has obvious emission reduction effect, can continuously and stably provide combustion improver for the gasoline engine for a long time, thus the emission reduction effect is reduced by 70 percent compared with the standard emission limit value, the environmental protection quality is improved, and the oil consumption is reduced by 10 to 30 percent.
Drawings
Fig. 1 is a schematic view of the suction emission reduction mounting device for a gasoline engine;
FIG. 2 is a schematic structural view of the oil injection bolt;
The meaning of each mark in the figure is as follows:
1-an oil storage tank; 2-oiling bolts; 3-an oil filling port; 4-a wick; 5-an oil outlet; 6-fixing the bolt; 7-observing the tube; 8-adapter; 9-an oil outlet pipe; 10-a three-way valve; 11-an intake air regulating valve; 12-locking screws; 13-a leak-proof gasket; 14-an air inlet hole; 15-filter element.
Detailed Description
Example 1
A suction emission reduction mounting device for a gasoline engine, comprising: the oil storage tank 1, oiling bolt 2, oiling mouth 3, wick rope 4, oil-out 5, fixed bolt 6, observation tube 7, crossover sub 8, play oil pipe 9 and three-way valve 10, the top of oil storage tank 1 is equipped with oiling mouth 3 and oil-out 5, and the inner wall of oiling mouth 3 is threaded, oiling bolt 2 and oiling mouth 3 threaded connection, wick rope 4 inserts oil storage tank 1 to bottom from oil-out 5, and in the other end of wick rope 4 inserted observation tube 7, observation tube 7 and oil-out 5 fixed connection, the other end of observation tube 7 is connected with play oil pipe 9 through crossover sub 8, and play oil pipe 9 other end is connected with three-way valve 10.
The oiling bolt 2 is composed of the following components: the air inlet adjusting valve 11, the locking screw 12, the leakage-proof gasket 13 and the air inlet hole 14, wherein the air inlet adjusting valve 11 is fixedly connected with the top of the locking screw 12, the air inlet end of the air inlet adjusting valve 11 is provided with the filter element 15, the air inlet hole 14 penetrates through the center of the locking screw 12 from top to bottom, the air inlet hole 14 is in butt joint with the air outlet end of the air inlet adjusting valve 11, and the leakage-proof gasket 13 is sleeved at the bottom of the locking screw 12.
The observation tube 7 is made of toughened glass, and the observation tube 7 is arc-shaped.
The combustion improver is made of materials with ignition points higher than 250 ℃ and ensures stability and safety.
Example 2
A suction emission reduction mounting device for a gasoline engine, comprising: the oil storage tank 1, oiling bolt 2, oiling mouth 3, wick rope 4, oil-out 5, fixed bolt 6, observation tube 7, crossover sub 8, play oil pipe 9 and three-way valve 10, the top of oil storage tank 1 is equipped with oiling mouth 3 and oil-out 5, and the inner wall of oiling mouth 3 is threaded, oiling bolt 2 and oiling mouth 3 threaded connection, wick rope 4 inserts oil storage tank 1 to bottom from oil-out 5, and in the other end of wick rope 4 inserted observation tube 7, observation tube 7 and oil-out 5 fixed connection, the other end of observation tube 7 is connected with play oil pipe 9 through crossover sub 8, and play oil pipe 9 other end is connected with three-way valve 10.
The oiling bolt 2 is composed of the following components: the air inlet adjusting valve 11, the locking screw 12, the leakage-proof gasket 13 and the air inlet hole 14, wherein the air inlet adjusting valve 11 is fixedly connected with the top of the locking screw 12, the air inlet end of the air inlet adjusting valve 11 is provided with the filter element 15, the air inlet hole 14 penetrates through the center of the locking screw 12 from top to bottom, the air inlet hole 14 is in butt joint with the air outlet end of the air inlet adjusting valve 11, and the leakage-proof gasket 13 is sleeved at the bottom of the locking screw 12.
The observation tube 7 is made of transparent plastic, and the observation tube 7 is arc-shaped.
The combustion improver is made of materials with ignition points higher than 250 ℃ and ensures stability and safety.
Application examples
The applicant tested the present application on a number of private cars, giving the following table of results:
As can be seen from the table, after the suction type emission reduction carrying device for the automobile engine is arranged, the hundred kilometers oil consumption of a test vehicle is obviously reduced, and the amounts of nitrogen oxide compounds, hydrocarbon compounds and carbon monoxide in tail gas emission are greatly reduced.
Claims (1)
1. A suction emission reduction mounting device for a gasoline engine, comprising: the oil storage tank comprises an oil storage tank (1), an oil injection bolt (2), an oil injection port (3), a lamp core rope (4), an oil outlet (5), a fixing bolt (6), an observation tube (7), an adapter (8), an oil outlet tube (9) and a three-way valve (10), wherein the top of the oil storage tank (1) is provided with the oil injection port (3) and the oil outlet (5), the inner wall of the oil injection port (3) is threaded, the oil injection bolt (2) is in threaded connection with the oil injection port (3), the lamp core rope (4) is inserted into the oil storage tank (1) from the oil outlet (5) to the bottom, the other end of the lamp core rope (4) is inserted into the observation tube (7), the observation tube (7) is fixedly connected with the oil outlet (5), the other end of the observation tube (7) is connected with the oil outlet tube (9) through the adapter (8), the other end of the oil outlet pipe (9) is connected with a three-way valve (10), the three-way valve is arranged between the outlet end of a carbon tank electromagnetic valve of a vehicle and the inlet end of a vacuum tube of an air inlet manifold, the other end of the three-way valve is respectively connected with an original pipeline, the other end of the three-way valve is connected with the oil outlet pipe, after an engine starts to operate, the combustion improver in the oil storage tank is transferred or gradient-transferred by utilizing the siphon effect or capillary effect of a lamp core rope to realize the concentration transfer or gradient transfer, and meanwhile, the air inlet quantity is regulated by an air inlet regulating valve on a locking screw to form pressure difference with the negative pressure at the bottom in an observation tube, the combustion improver in the oil storage tank is sucked into the observation pipe along the wick rope to realize pressure transfer of the combustion improver, under the action of negative pressure suction generated by the air inlet manifold, the combustion improver which is siphoned by the wick rope to form an aerosol state is sent into the air inlet manifold through the observation pipe and the oil outlet pipe to be mixed with air, when each cylinder of the engine works, mixed gas is sucked in, so that mixed oil gas in the cylinder is combusted more fully, the purposes of saving energy and reducing emission are achieved, and when the combustion improver in the oil storage tank is exhausted, the oiling bolt is screwed off to be screwed again after the combustion improver is injected from the oil filling port; the oiling bolt (2) is composed of the following components: the air inlet adjusting valve (11), the locking screw (12), the leakage-proof gasket (13) and the air inlet hole (14), wherein the air inlet adjusting valve (11) is fixedly connected with the top of the locking screw (12), the air inlet end of the air inlet adjusting valve (11) is provided with the filter element (15), the air inlet hole (14) penetrates through the center of the locking screw (12) from top to bottom, the air inlet hole (14) is in butt joint with the air outlet end of the air inlet adjusting valve (11), and the leakage-proof gasket (13) is sleeved at the bottom of the locking screw (12); the observation tube (7) is made of toughened glass or transparent plastic, and the observation tube (7) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582305.2A CN109404184B (en) | 2018-12-24 | 2018-12-24 | Suction type emission reduction carrying device for gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582305.2A CN109404184B (en) | 2018-12-24 | 2018-12-24 | Suction type emission reduction carrying device for gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404184A CN109404184A (en) | 2019-03-01 |
| CN109404184B true CN109404184B (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811582305.2A Active CN109404184B (en) | 2018-12-24 | 2018-12-24 | Suction type emission reduction carrying device for gasoline engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN109404184B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234408B (en) * | 2021-04-23 | 2023-09-29 | 山东垚旭节能环保科技有限公司 | Emission reduction and synergy device of gasoline car |
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| CN102748166A (en) * | 2012-06-26 | 2012-10-24 | 孙东辉 | Watering and oil saving device for internal combustion engine |
| CN203463203U (en) * | 2013-08-23 | 2014-03-05 | 朱宗德 | Air filtering device |
| WO2015196556A1 (en) * | 2014-06-25 | 2015-12-30 | 周裕忠 | Air filtration device |
| CN207499990U (en) * | 2017-11-23 | 2018-06-15 | 李文清 | A kind of induction system of internal combustion engine energy-saving emission-reducing apparatus |
| CN209278038U (en) * | 2018-12-24 | 2019-08-20 | 周伟传 | A kind of drawing-in type emission reduction loading device for petrol engine |
-
2018
- 2018-12-24 CN CN201811582305.2A patent/CN109404184B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955029A (en) * | 2005-10-28 | 2007-05-02 | 考特克斯·特克斯罗恩有限公司及两合公司 | Fuel tank |
| CN102748166A (en) * | 2012-06-26 | 2012-10-24 | 孙东辉 | Watering and oil saving device for internal combustion engine |
| CN203463203U (en) * | 2013-08-23 | 2014-03-05 | 朱宗德 | Air filtering device |
| WO2015196556A1 (en) * | 2014-06-25 | 2015-12-30 | 周裕忠 | Air filtration device |
| CN207499990U (en) * | 2017-11-23 | 2018-06-15 | 李文清 | A kind of induction system of internal combustion engine energy-saving emission-reducing apparatus |
| CN209278038U (en) * | 2018-12-24 | 2019-08-20 | 周伟传 | A kind of drawing-in type emission reduction loading device for petrol engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109404184A (en) | 2019-03-01 |
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