CN110685785B - Ultrasonic composite secondary air injection system and control method thereof - Google Patents
Ultrasonic composite secondary air injection system and control method thereof Download PDFInfo
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- CN110685785B CN110685785B CN201911006483.5A CN201911006483A CN110685785B CN 110685785 B CN110685785 B CN 110685785B CN 201911006483 A CN201911006483 A CN 201911006483A CN 110685785 B CN110685785 B CN 110685785B
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- 238000002347 injection Methods 0.000 title claims abstract description 101
- 239000007924 injection Substances 0.000 title claims abstract description 101
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 48
- 239000002912 waste gas Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000000746 purification Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000006555 catalytic reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0093—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are of the same type
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/10—Carbon or carbon oxides
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/12—Hydrocarbons
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses an ultrasonic composite secondary air injection system, which belongs to the field of automobile exhaust purification treatment and comprises an engine, an air inlet manifold, an exhaust manifold and an exhaust main pipe, wherein the air inlet manifold and the exhaust manifold are respectively connected with the engine, one end of the exhaust main pipe is connected with the exhaust manifold, the other end of the exhaust main pipe is connected with a three-way catalyst, the ultrasonic composite secondary air injection system also comprises an air injection system for introducing air, the air injection system comprises two air injection manifolds, one air injection manifold is connected with a cylinder cover, close to the engine end, of the exhaust manifold or provided with a special air injection channel, the other air injection manifold is connected with the exhaust main pipe, close to an air inlet of the three-way catalyst, and ultrasonic transmitters are respectively arranged at the positions where the air injection manifolds are connected with the exhaust manifold and the exhaust main pipe. The invention improves the emission condition of the engine under the full working condition state.
Description
Technical Field
The invention relates to the field of automobile exhaust purification treatment, in particular to an ultrasonic composite type injection system and a control method thereof.
Background
With the development of economy, automobiles have become common and important vehicles in daily life, but the harmful gas emitted by automobiles seriously affects the life of people, and since the implementation of the first vehicle exhaust pollution control standard in the world, secondary air injection systems have been widely applied to automobiles, and the working principle of the secondary air injection systems is that an air pump sends fresh air into an exhaust manifold of an engine, so that HC and CO in exhaust gas are further oxidized and combusted, namely oxygen in the introduced air is further fully reacted with HC and CO in the exhaust gas in the exhaust pipe to form water vapor and carbon dioxide, so that the emission amount of HC and CO in the exhaust gas is reduced. At present, the traditional secondary air injection system is still widely used, and in order to improve the reaction rate and reaction effect of the injected air and the discharged waste gas under all working conditions and reduce the emission of harmful gases, the secondary air injection system needs to be researched.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an ultrasonic composite secondary air injection system and a control method thereof, and the emission condition of an engine under the full working condition state is improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a compound secondary air injection system of supersound, includes engine, air intake manifold, exhaust manifold, air intake manifold and exhaust manifold link to each other with the engine respectively, and exhaust manifold one end links to each other with exhaust manifold, and the exhaust manifold other end links to each other with three way catalyst converter, still including the air injection system who introduces the air, air injection system includes two air injection manifolds, and one of them air injection manifold links to each other with exhaust manifold is close to the cylinder head that engine end or specially establish jet channel, and another air injection manifold links to each other with exhaust manifold is close to three way catalyst converter air inlet department, the position that air injection manifold and exhaust manifold are connected is provided with ultrasonic emitter respectively.
The technical scheme of the invention is further improved as follows: the air injection system comprises a main pipeline, an air pump is arranged at an inlet of the main pipeline, a bypass valve is arranged on the main pipeline, a diverter valve is arranged at an outlet of the main pipeline, the diverter valve is respectively connected with an injection manifold a and an injection manifold b, a one-way valve a is arranged on the injection manifold a, and a one-way valve b is arranged on the injection manifold b.
The technical scheme of the invention is further improved as follows: the air injection system comprises a main pipeline, an air filter is arranged at the inlet of the main pipeline, a pulse air valve is arranged on the main pipeline, and the outlet of the main pipeline is forked to form an injection manifold d and an injection manifold e.
The technical scheme of the invention is further improved as follows: and three ultrasonic transmitters with transmitting ports along the flowing direction of the waste gas, against the flowing direction of the waste gas and vertical to the flowing direction of the waste gas are respectively arranged at the positions where the air injection manifold is connected with the exhaust manifold.
The technical scheme of the invention is further improved as follows: the air injection manifold is provided with any one or more of an emission port in the exhaust gas flow direction, in the opposite direction to the exhaust gas flow direction, and in the perpendicular direction to the exhaust gas flow direction at a position where the air injection manifold is connected to the exhaust manifold.
The technical scheme of the invention is further improved as follows: the working mode of the ultrasonic transmitter is controlled according to the working condition, and the working mode specifically comprises the following modes:
under the working conditions of cold start, idling, small load, large load or full load of the engine, the rich mixed gas is supplied, and under the working conditions, an emission port at the joint of the air injection manifold and the exhaust manifold is started by an ultrasonic emitter against the flowing direction of the exhaust gas;
under the working condition of medium load of an engine, supplying economic mixed gas, and under the working condition, starting an ultrasonic transmitter at the joint of an air injection manifold and an exhaust manifold along the flowing direction of exhaust gas;
under the full working condition of the engine, the ultrasonic transmitter of the emission port at the joint of the air injection manifold and the exhaust manifold, which is vertical to the flow direction of the exhaust gas, is continuously started;
under all engine operating conditions, the ultrasonic transmitter at the junction of the air injection manifold and the exhaust manifold is continuously activated.
Due to the adoption of the technical scheme, the invention has the technical progress that:
this application sets up ultrasonic emitter near the engine end at exhaust manifold, and ultrasonic emitter transmission ultrasonic wave acts on the gas mixture of nearly engine department injection air and exhaust waste gas, strengthens the catalysis to it, improves gas mixture reaction rate and reaction effect for the gas mixture reaction is more abundant, emission such as the greatly reduced HC and CO.
The exhaust manifold is close to three way catalyst converter air inlet department and sets up ultrasonic transmitter, and ultrasonic transmitter transmission ultrasonic wave acts on the gas mixture of nearly three way catalyst converter department injection air and exhaust waste gas, does further catalytic treatment to the gas mixture that will get into three way catalyst converter, improves the reaction rate and the reaction effect of gas mixture for the gas mixture reaction is more abundant, emission such as the greatly reduced HC and CO.
Meanwhile, the probe of the ultrasonic transmitter can improve the working efficiency of the three-way catalytic converter and accelerate the harmless treatment of harmful gases.
The invention provides a control method of an ultrasonic composite secondary air injection system by combining with actual working conditions, so that ultrasonic transmitters at different positions can transmit ultrasonic waves under different working conditions to perform reinforced catalysis on waste gas and intervene airflow, the labor division is clear, and the catalytic reaction rate is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
the device comprises an engine 1, an engine 2, an intake manifold 3, an exhaust manifold 4, an exhaust manifold 5, a three-way catalyst 6, an ultrasonic wave emitter 7, an air pump 8, a bypass valve 9, a flow dividing valve 10, injection manifolds a and 11, injection manifolds b and 12, check valves a and 13, check valves b and 14, an air filter 15, a pulse air valve 16, injection manifolds d and 17 and an injection manifold e.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example one
The utility model provides a compound secondary air injection system of supersound, includes engine 1, intake manifold 2, exhaust manifold 3, exhaust manifold 4 and the air injection system of introduction air, and wherein intake manifold 2 and exhaust manifold 3 link to each other with engine 1 respectively, and exhaust manifold 4 one end links to each other with exhaust manifold 3, and the other end of exhaust manifold 4 links to each other with three way catalyst converter 5. The air injection system comprises two air injection manifolds, the specific air injection system comprises a main pipeline, an air pump 7 is arranged at the inlet of the main pipeline, a bypass valve 8 is arranged on the main pipeline, a diverter valve 9 is arranged at the outlet of the main pipeline, the diverter valve 9 is respectively connected with an injection manifold a10 and an injection manifold b11, a check valve a12 is arranged on the injection manifold a10, and a check valve b13 is arranged on the injection manifold b 11. Injection manifold a10 is connected to the end of exhaust manifold 3 near engine 1, and injection manifold b11 is connected to exhaust manifold 4 near the intake port of three-way catalyst 5. Ultrasonic emitters 6 are provided at the junction of injection manifold a10 and exhaust manifold 3 and at the junction of injection manifold b11 and exhaust manifold 4.
The injection manifold a10 can also be connected with a cylinder cover with a special injection passage, and at the moment, fresh air is injected into an exhaust passage in the cylinder cover behind an exhaust valve through a special pipeline on the cylinder cover, so that the oxidation of HC and CO in the exhaust gas is earlier carried out, and in fact, the injection manifold a10 is placed at a position closer to an exhaust port of the engine 1, so that the CO and HC in the exhaust gas can be earlier oxidized.
The three ultrasonic transmitters 6 are arranged at the joint of the injection manifold a10 and the exhaust manifold 3, when the three ultrasonic transmitters 6 are installed, the transmitting port of one ultrasonic transmitter is installed along the flowing direction of the exhaust gas, the transmitting port of the other ultrasonic transmitter 6 is installed against the flowing direction of the exhaust gas, and the transmitting port of the other ultrasonic transmitter 6 is installed perpendicular to the flowing direction of the exhaust gas, so that different ultrasonic transmitters 6 can be selected to work, and different requirements can be met.
The joint of the injection manifold b11 and the exhaust manifold 4 is provided with one or more of emission ports along the exhaust gas flow direction, against the exhaust gas flow direction and perpendicular to the exhaust gas flow direction, that is, any one of the emission ports can be installed, three of the emission ports can be installed, or any two of the three emission ports can be installed in combination.
A control method of ultrasonic compound secondary air injection system, when the ultrasonic compound secondary air injection system works, the air pump 7 sends a large amount of air into the bypass valve 8, flows through the diverter valve 9, the pumped air respectively flows through the one-way valve a12 and the one-way valve b13 to enter the injection manifold a10 and the injection manifold b11, the injection manifold a10 injects the air into the exhaust manifold 3 or the air injection channel specially arranged on the cylinder cover, and mixes and reacts with the exhausted waste gas, at this time, the ultrasonic emitter 6 emits ultrasonic wave to act on the mixture of the injected air and the exhausted waste gas, at the same time, the injection manifold b13 injects the air into the air inlet of the three-way catalyst 5 to mix and react with the exhausted waste gas, the ultrasonic emitter 6 emits ultrasonic wave to act on the mixture of the injected air and the exhausted waste gas, the probe of the ultrasonic emitter 6 can be intermittently controlled or continuously controlled according to different working conditions, through a series of complex physical and chemical processes such as mechanical vibration, cavitation effect, thermal effect and the like generated by ultrasound, the reaction rate and reaction effect of the discharged waste gas and secondary jet air are improved, and the harmless treatment speed of harmful gas is accelerated.
The working mode of the ultrasonic transmitter 6 is controlled according to the working condition, and the working mode specifically comprises the following modes:
under the working conditions of cold start, idling, small load, large load or full load of an engine, a rich mixed gas (a mixed gas of gasoline and air with an air-fuel ratio of 11-14) is supplied, under the working conditions, the combustible mixed gas is insufficiently combusted, an ultrasonic emitter 6 with an emitting port at an exhaust manifold 3 and in a reverse direction with the exhaust gas flow emits sound waves to intervene the flow, the exhaust gas can be further catalyzed, meanwhile, the discharge speed of the gas is reduced by utilizing the sound wave energy, and more time is provided for catalytic reaction.
Under the medium load operating mode of engine, supply with economic gas mixture (the gas mixture of petrol and air, the air-fuel ratio is 16 ~ 18), combustible gas mixture burning is more abundant under this operating mode, and exhaust manifold 3 department emission mouth intervenes the air current with the ultrasonic emitter 6 transmission sound wave of exhaust gas air current syntropy, both can carry out further catalytic reaction to waste gas, utilize sound wave energy acceleration gas simultaneously to discharge.
Under the full working condition of the engine, the ultrasonic transmitter 6 with the transmitting port at the exhaust manifold 3 vertical to the exhaust gas flow continuously transmits sound waves to intervene the flow and further perform reinforced catalysis on the exhaust gas.
Through the ultrasonic closed-loop control strategy, the ultrasonic emitters 6 at different positions can emit ultrasonic waves under different working conditions to perform reinforced catalysis on the waste gas, the division of labor is clear, and the catalytic reaction rate is greatly improved.
Under the full operating mode of the engine, the ultrasonic transmitter 6 at the three-way catalyst 5 continuously carries out catalytic treatment again on the waste gas entering the three-way catalyst 5, and meanwhile, the working efficiency of the three-way catalyst 5 is improved to a certain degree.
Example two
The embodiment is different from the embodiment in that the air injection system comprises a main pipe, an air filter 14 is arranged at the inlet of the main pipe, a pulse air valve 15 is arranged on the main pipe, the outlet of the main pipe is branched to form an injection manifold d16 and an injection manifold e17, the injection manifold d16 is connected with the end, close to the engine 1, of the exhaust manifold 3 or a cylinder head with a special injection channel, and the injection manifold e17 is connected with the inlet, close to the three-way catalyst 5, of the exhaust manifold 4.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (3)
1. A control method of an ultrasonic composite secondary air injection system is characterized in that the working mode of an ultrasonic transmitter (6) is controlled according to working conditions, and the control method specifically comprises the following modes:
under the working conditions of cold start, idling, small load, large load or full load of the engine, the rich mixture is supplied, and under the working conditions, an emission port at the joint of the air injection manifold and the exhaust manifold (3) is started by an ultrasonic emitter (6) against the flowing direction of the exhaust gas;
under the working condition of medium load of an engine, supplying an economic mixture, and under the working condition, starting an ultrasonic transmitter (6) with an emission opening at the joint of an air injection manifold and an exhaust manifold (3) along the flowing direction of exhaust gas;
under the full working condition of the engine, an ultrasonic transmitter (6) with an emitting port at the joint of the air injection manifold and the exhaust manifold (3) vertical to the flowing direction of the waste gas is continuously started;
under the full working condition of the engine, an ultrasonic transmitter (6) at the joint of an air injection manifold and an exhaust manifold (4) is continuously started;
compound secondary air injection system of supersound, including engine (1), air intake manifold (2), exhaust manifold (3), exhaust manifold (4), its characterized in that: the air injection system comprises two air injection manifolds, one air injection manifold is connected with the exhaust manifold (3) close to the end of the engine (1) or a cylinder cover with a special air injection channel, the other air injection manifold is connected with the exhaust manifold (4) close to the air inlet of the three-way catalyst (5), and ultrasonic emitters (6) are respectively arranged at the connecting positions of the air injection manifolds, the exhaust manifold (3) and the exhaust manifold (4);
three ultrasonic transmitters (6) with transmitting ports along the flowing direction of the waste gas, against the flowing direction of the waste gas and vertical to the flowing direction of the waste gas are respectively arranged at the positions where the air injection manifold is connected with the exhaust manifold (3);
the position where the air injection manifold is connected with the exhaust manifold (4) is provided with any one or more of an emission opening along the flowing direction of the exhaust gas, against the flowing direction of the exhaust gas and vertical to the flowing direction of the exhaust gas.
2. The control method of an ultrasonic composite secondary air injection system according to claim 1, characterized in that: the air injection system comprises a main pipeline, an air pump (7) is arranged at the inlet of the main pipeline, a bypass valve (8) is arranged on the main pipeline, a diverter valve (9) is arranged at the outlet of the main pipeline, the diverter valve (9) is respectively connected with an injection manifold a (10) and an injection manifold b (11), a one-way valve a (12) is arranged on the injection manifold a (10), and a one-way valve b (13) is arranged on the injection manifold b (11).
3. The control method of an ultrasonic composite secondary air injection system according to claim 1, characterized in that: the air injection system comprises a main pipe, an air filter (14) is arranged at the inlet of the main pipe, a pulse air valve (15) is arranged on the main pipe, and the outlet of the main pipe is forked to form an injection manifold d (16) and an injection manifold e (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911006483.5A CN110685785B (en) | 2019-10-22 | 2019-10-22 | Ultrasonic composite secondary air injection system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006483.5A CN110685785B (en) | 2019-10-22 | 2019-10-22 | Ultrasonic composite secondary air injection system and control method thereof |
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| CN110685785A CN110685785A (en) | 2020-01-14 |
| CN110685785B true CN110685785B (en) | 2021-08-20 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3712065A (en) * | 1970-12-04 | 1973-01-23 | Clevepak Corp | Antipollution exhaust system for an internal combustion engine |
| CN103628966A (en) * | 2013-11-20 | 2014-03-12 | 安徽江淮汽车股份有限公司 | Air injection system capable of reducing pollutant emission |
| CN204113406U (en) * | 2013-09-10 | 2015-01-21 | 日立汽车系统(苏州）有限公司 | Vehicle tail gas treatment device |
| CN205638647U (en) * | 2016-04-29 | 2016-10-12 | 陈聪 | High -efficient vehicle vent -pipe that purifies of ultrasonic wave |
| CN106285868A (en) * | 2016-08-26 | 2017-01-04 | 江苏大学 | A kind of motor exhaust based on ultrasonic generator utilizes device |
| CN109012175A (en) * | 2013-03-22 | 2018-12-18 | 日本碍子株式会社 | Reducing agent injection apparatus, emission-control equipment and waste gas processing method |
-
2019
- 2019-10-22 CN CN201911006483.5A patent/CN110685785B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3712065A (en) * | 1970-12-04 | 1973-01-23 | Clevepak Corp | Antipollution exhaust system for an internal combustion engine |
| CN109012175A (en) * | 2013-03-22 | 2018-12-18 | 日本碍子株式会社 | Reducing agent injection apparatus, emission-control equipment and waste gas processing method |
| CN204113406U (en) * | 2013-09-10 | 2015-01-21 | 日立汽车系统(苏州）有限公司 | Vehicle tail gas treatment device |
| CN103628966A (en) * | 2013-11-20 | 2014-03-12 | 安徽江淮汽车股份有限公司 | Air injection system capable of reducing pollutant emission |
| CN205638647U (en) * | 2016-04-29 | 2016-10-12 | 陈聪 | High -efficient vehicle vent -pipe that purifies of ultrasonic wave |
| CN106285868A (en) * | 2016-08-26 | 2017-01-04 | 江苏大学 | A kind of motor exhaust based on ultrasonic generator utilizes device |
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| CN110685785A (en) | 2020-01-14 |
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