CN102817683A - Tail gas purification device for internal combustion engine - Google Patents
Tail gas purification device for internal combustion engine Download PDFInfo
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- CN102817683A CN102817683A CN2012103222531A CN201210322253A CN102817683A CN 102817683 A CN102817683 A CN 102817683A CN 2012103222531 A CN2012103222531 A CN 2012103222531A CN 201210322253 A CN201210322253 A CN 201210322253A CN 102817683 A CN102817683 A CN 102817683A
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- tail gas
- outlet pipe
- purification device
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- 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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- 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
- Y02T10/40—Engine management systems
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Abstract
The invention provides a tail gas purification device for an internal combustion engine, belonging to the field of automobile internal combustion engines. The tail gas purification device comprises an engine exhaust pipe, a triple-effect catalytic converter, an air inlet unit arranged between the exhaust pipe and the triple-effect catalytic converter and communicated with the exhaust pipe, an ignition unit arranged in the joint of the exhaust pipe and the air inlet unit, a sensing unit connected with the triple-effect catalytic converter, the exhaust pipe and an admission pipe respectively, and a control unit connected with the ignition unit, the air inlet unit and the sensing unit respectively, and used for controlling the air inlet volume of the air inlet unit according to the sensed parameters of the sensing unit and controlling the ignition unit. According to the tail gas purification device for the internal combustion engine provided by an embodiment of the invention, the heating efficiency of the triple-effect catalytic converter is improved.
Description
Technical field
The present invention relates to the car combustion engine field, be meant a kind of tail gas purification device of combustion engine especially.
Background technique
In the existing technology, triple-effect catalytic unit adopts the electric heating preheater, utilizes electric energy when engine cold-start, the preheating triple-effect catalytic unit.
Temperature rising meeting generation time hysteresis quality during the heating of electric heating preheater, in engine cold-start, because the three-effect catalysis actuator temperature does not reach operating temperature, the catalytic efficiency of triple-effect catalytic unit reduces, and will discharge a large amount of noxious pollutants like this.Most of HC in the tail gas and CO discharge in this engine warm-up process.
Summary of the invention
The technical problem that the present invention will solve provides a kind of tail gas purification device of combustion engine that improves the triple-effect catalytic unit efficiency of heating surface.
For solving the problems of the technologies described above, embodiments of the invention provide technological scheme following:
On the one hand, a kind of tail gas purification device of combustion engine is provided, comprises:
Waste pipe;
The triple-effect catalytic unit that is connected with said outlet pipe;
Be arranged on the air inlet unit that communicates between said outlet pipe and the said triple-effect catalytic unit, with said outlet pipe;
Be arranged on the igniting unit of said outlet pipe and joint, said air inlet unit;
The sensing unit that is connected respectively with said triple-effect catalytic unit, outlet pipe and suction tude;
Be connected respectively with said igniting unit, air inlet unit and sensing unit, be used for controlling the air inlet amount of said air inlet unit and the control unit of said igniting unit according to the parameter sensing of said sensing unit.
Further, said tail gas purification device of combustion engine also comprises:
The power supply unit that links to each other with said triple-effect catalytic unit;
Further, said power supply unit comprises:
The storage battery that links to each other with said triple-effect catalytic unit; And
Be arranged on the supercharging coil between said triple-effect catalytic unit and the said storage battery.
Further, said air inlet unit comprises:
Be arranged on the suction tude that communicates between said outlet pipe and the said triple-effect catalytic unit, with said outlet pipe;
Be successively set on one way stop peturn valve and closure on the said suction tude.
Further, said air inlet unit also comprises:
Be arranged on the terminal air-strainer of said suction tude, said closure is between said one way stop peturn valve and said air-strainer.
Further, said igniting unit comprises the spark plug that is arranged on said outlet pipe and said suction tude joint.
Further, said sensing unit comprises:
Be arranged on the carrier of said triple-effect catalytic unit, be used to measure the temperature transducer of temperature in the triple-effect catalytic unit;
Be arranged in the said outlet pipe, be used for measuring the oxygen concentration sensor of outlet pipe oxygen concentration;
Be arranged on the said closure, be used to measure the TPS of throttle position.
Further, said control unit comprises:
Be used for the parameter sensing according to said temperature transducer and oxygen concentration sensor, first control module of aperture of the said closure of control;
Be used for the parameter sensing according to said temperature transducer, second control module of the said plug ignition of control.
Embodiments of the invention have following beneficial effect:
In the such scheme, when engine cold-start, introduce air to outlet pipe from the air inlet unit; A large amount of imperfect combustion tail gas are mixed with secondary air; Form mixed gas, through the igniting unit igniting, mixed gas is caught fire before triple-effect catalytic unit again; Impel triple-effect catalytic unit to reach operating temperature at short notice, thereby reduce the discharging of noxious pollutant; And technological scheme temperature increase rate of the present invention is fast, need not consume a large amount of electric energy.
Description of drawings
Fig. 1 is the structural representation of the tail gas purification device of combustion engine of the embodiment of the invention.
Reference character
The 1-outlet pipe
The 2-spark plug
The 3-temperature transducer
The 4-triple-effect catalytic unit
The 5-oxygen concentration sensor
The 6-one way stop peturn valve
7-closure and TPS
The 8-air intake duct
The 9-air-strainer
The 10-gas exhaust manifold
The 11-storage battery
The 12-control unit
13-supercharging coil
Embodiment
For technical problem, technological scheme and advantage that embodiments of the invention will be solved is clearer, will combine accompanying drawing and specific embodiment to be described in detail below.
The temperature meeting of rising generation time hysteresis quality when embodiments of the invention heat to electric heating preheater in the existing technology; Like this in engine cold-start; Because the three-effect catalysis actuator temperature does not reach operating temperature; The catalytic efficiency of triple-effect catalytic unit reduces, and the problem with discharging a large amount of noxious pollutants provides a kind of tail gas purification device of combustion engine that improves the triple-effect catalytic unit efficiency of heating surface.
The embodiment of the invention provides a kind of tail gas purification device of combustion engine, comprising:
Waste pipe;
The triple-effect catalytic unit that is connected with outlet pipe;
Be arranged on the air inlet unit that communicates between outlet pipe and the triple-effect catalytic unit, with outlet pipe;
Be arranged on the igniting unit of outlet pipe and joint, air inlet unit;
The sensing unit that is connected respectively with triple-effect catalytic unit, outlet pipe and suction tude;
Be connected respectively with igniting unit, air inlet unit and sensing unit, be used for controlling the air inlet amount of air inlet unit and the control unit of igniting unit according to the parameter sensing of sensing unit.
Further, tail gas purification device of combustion engine also comprises:
The power supply unit that links to each other with triple-effect catalytic unit;
Further, power supply unit comprises:
The storage battery that links to each other with triple-effect catalytic unit; And
Be arranged on the supercharging coil between triple-effect catalytic unit and the storage battery.
Further, the air inlet unit comprises:
Be arranged on the suction tude that communicates between outlet pipe and the triple-effect catalytic unit, with outlet pipe;
Be successively set on one way stop peturn valve and closure on the suction tude.
Further, the air inlet unit also comprises:
Be arranged on the terminal air-strainer of suction tude, closure is between one way stop peturn valve and air-strainer.
Further, igniting unit comprises the spark plug that is arranged on outlet pipe and suction tude joint.
Further, sensing unit comprises:
Be arranged on the carrier of triple-effect catalytic unit, be used to measure the temperature transducer of temperature in the triple-effect catalytic unit;
Be arranged in the outlet pipe, be used for measuring the oxygen concentration sensor of outlet pipe oxygen concentration;
Be arranged on the closure, be used to measure the TPS of throttle position.
Further, control unit comprises:
Be used for the parameter sensing according to temperature transducer and oxygen concentration sensor, first control module of aperture of control closure;
Be used for the parameter sensing according to temperature transducer, second control module of control plug ignition.
In the embodiment of the invention, when engine cold-start, introduce air to outlet pipe from the air inlet unit; A large amount of imperfect combustion tail gas are mixed with secondary air; Form mixed gas, through the igniting unit igniting, mixed gas is caught fire before triple-effect catalytic unit again; Impel triple-effect catalytic unit to reach operating temperature at short notice, thereby reduce the discharging of noxious pollutant; And technological scheme temperature increase rate of the present invention is fast, need not consume a large amount of electric energy.
Below in conjunction with Fig. 1 tail gas purification device of combustion engine of the present invention and workflow thereof are introduced further:
As shown in Figure 1; Waste pipe 1 is provided with gas exhaust manifold 10, and the triple-effect catalytic unit 4 in addition that links to each other with outlet pipe 1 is provided with air intake duct 8 before triple-effect catalytic unit 4; Suction tude 8 is provided with closure 7, and closure 7 can be controlled the air inlet amount of suction tude 8.Further, on suction tude 8, also be provided with one way stop peturn valve 6, after one way stop peturn valve 6 can prevent that outlet pipe 1 internal pressure from increasing, the tail gas that outlet pipe 1 is discharged passed back into air intake duct 8.Preferably, at suction tude 8 tip designs air-strainer 9, prevent that dust in air from getting into outlet pipe 1, stops up triple-effect catalytic unit 4.
Wherein,, spend lowly can't oxidation the time, can adopt spark plug 2 igniting, make mixed gas in triple-effect catalytic unit 4 anterior burnings when mixed air temperature at suction tude 8 and rear, outlet pipe 1 joint design spark plug 2.
On the carrier of triple-effect catalytic unit 4, be designed with temperature transducer 3, in order to measure the operating temperature of triple-effect catalytic unit 4.Be designed with oxygen concentration sensor 5 at triple-effect catalytic unit 4 rears, be used for measuring the oxygen concentration of outlet pipe 1.On closure 7, be designed with TPS, be used to measure the position of closure 7.Control unit 12 is connected with temperature transducer 3, oxygen concentration sensor 5, spark plug 2 and TPS.
Tail gas purification device of combustion engine of the present invention provides electric energy through storage battery 11 for triple-effect catalytic unit 4, between storage battery 11 and triple-effect catalytic unit 4, also is provided with supercharging coil 13, can improve the voltage that storage battery 11 provides.
When engine cold-start, the aperture of control unit 12 control closures 7 is regulated the air inlet amount; Air gets into outlet pipes 1 from suction tude 8, and with the tail gas mixing formation mixed gas in the outlet pipe 1, the parameter of transmitting through temperature transducer 3 and oxygen concentration sensor 5 when control unit 12 judges that mixed air temperature spends low can't oxidation the time; 2 igniting of control spark plug; Make mixed gas in triple-effect catalytic unit 4 anterior burnings, make triple-effect catalytic unit 4 in the short time (such as several seconds), reach operating temperature, improved the efficiency of heating surface of triple-effect catalytic unit; Reduce the discharging of noxious pollutant, and saved a large amount of electric energy.
The parameter that control unit 12 transmits according to temperature transducer 3 and oxygen concentration sensor 5 can be adjusted the aperture of closure 7 at any time; And then control air feeding amount; The speed of control cold start-up tail gas when triple-effect catalytic unit 4 anterior burnings; Flameholding is carried out, stop when temperature reaches the specified value after-combustion.Technological scheme of the present invention adjusts according to engine operating condition, and motor exhaust is farthest purified.
The above is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle according to the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. a tail gas purification device of combustion engine is characterized in that, comprising:
Waste pipe;
The triple-effect catalytic unit that is connected with said outlet pipe;
Be arranged on the air inlet unit that communicates between said outlet pipe and the said triple-effect catalytic unit, with said outlet pipe;
Be arranged on the igniting unit of said outlet pipe and joint, said air inlet unit;
The sensing unit that is connected respectively with said triple-effect catalytic unit, outlet pipe and suction tude;
Be connected respectively with said igniting unit, air inlet unit and sensing unit, be used for controlling the air inlet amount of said air inlet unit and the control unit of said igniting unit according to the parameter sensing of said sensing unit.
2. tail gas purification device of combustion engine according to claim 1 is characterized in that, said tail gas purification device of combustion engine also comprises:
The power supply unit that links to each other with said triple-effect catalytic unit;
3. tail gas purification device of combustion engine according to claim 2 is characterized in that, said power supply unit comprises:
The storage battery that links to each other with said triple-effect catalytic unit; And
Be arranged on the supercharging coil between said triple-effect catalytic unit and the said storage battery.
4. according to claim 2 or 3 described tail gas purification device of combustion engine, it is characterized in that said air inlet unit comprises:
Be arranged on the suction tude that communicates between said outlet pipe and the said triple-effect catalytic unit, with said outlet pipe;
Be successively set on one way stop peturn valve and closure on the said suction tude.
5. tail gas purification device of combustion engine according to claim 4 is characterized in that, said air inlet unit also comprises:
Be arranged on the terminal air-strainer of said suction tude, said closure is between said one way stop peturn valve and said air-strainer.
6. tail gas purification device of combustion engine according to claim 5 is characterized in that, said igniting unit comprises the spark plug that is arranged on said outlet pipe and said suction tude joint.
7. tail gas purification device of combustion engine according to claim 6 is characterized in that, said sensing unit comprises:
Be arranged on the carrier of said triple-effect catalytic unit, be used to measure the temperature transducer of temperature in the triple-effect catalytic unit;
Be arranged in the said outlet pipe, be used for measuring the oxygen concentration sensor of outlet pipe oxygen concentration;
Be arranged on the said closure, be used to measure the TPS of throttle position.
8. tail gas purification device of combustion engine according to claim 7 is characterized in that, said control unit comprises:
Be used for the parameter sensing according to said temperature transducer and oxygen concentration sensor, first control module of aperture of the said closure of control;
Be used for the parameter sensing according to said temperature transducer, second control module of the said plug ignition of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322253.1A CN102817683B (en) | 2012-09-03 | 2012-09-03 | Tail gas purification device of combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322253.1A CN102817683B (en) | 2012-09-03 | 2012-09-03 | Tail gas purification device of combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102817683A true CN102817683A (en) | 2012-12-12 |
| CN102817683B CN102817683B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210322253.1A Active CN102817683B (en) | 2012-09-03 | 2012-09-03 | Tail gas purification device of combustion engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620641A (en) * | 2016-07-15 | 2018-01-23 | 日立汽车***株式会社 | Motor car engine ECU |
| CN112228189A (en) * | 2020-10-12 | 2021-01-15 | 潍柴动力股份有限公司 | Exhaust gas heat management coupling method and exhaust gas treatment system |
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| US5425233A (en) * | 1991-06-12 | 1995-06-20 | Ford Motor Company | Operation of an internal combustion engine |
| US5459998A (en) * | 1992-03-11 | 1995-10-24 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for introducing fresh air into exhaust pipe of internal combustion engine for purification of exhaust gas |
| US5609021A (en) * | 1991-11-22 | 1997-03-11 | Ford Motor Company | Operation of an internal combustion engine |
| CN101429885A (en) * | 2008-12-11 | 2009-05-13 | 洛阳北方易初摩托车有限公司 | Heating type exhausting silencer of motorcycle |
| US20090133386A1 (en) * | 2007-11-22 | 2009-05-28 | Robert Bosch Gmbh | Procedure and control unit for heating up a catalyst arranged in the exhaust gas system of a supercharged combustion engine |
| CN202300590U (en) * | 2011-10-26 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Secondary air injection tail gas purification device |
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2012
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Patent Citations (6)
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| US5425233A (en) * | 1991-06-12 | 1995-06-20 | Ford Motor Company | Operation of an internal combustion engine |
| US5609021A (en) * | 1991-11-22 | 1997-03-11 | Ford Motor Company | Operation of an internal combustion engine |
| US5459998A (en) * | 1992-03-11 | 1995-10-24 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for introducing fresh air into exhaust pipe of internal combustion engine for purification of exhaust gas |
| US20090133386A1 (en) * | 2007-11-22 | 2009-05-28 | Robert Bosch Gmbh | Procedure and control unit for heating up a catalyst arranged in the exhaust gas system of a supercharged combustion engine |
| CN101429885A (en) * | 2008-12-11 | 2009-05-13 | 洛阳北方易初摩托车有限公司 | Heating type exhausting silencer of motorcycle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620641A (en) * | 2016-07-15 | 2018-01-23 | 日立汽车***株式会社 | Motor car engine ECU |
| CN107620641B (en) * | 2016-07-15 | 2022-04-01 | 日立安斯泰莫株式会社 | ECU for motor vehicle engine |
| CN112228189A (en) * | 2020-10-12 | 2021-01-15 | 潍柴动力股份有限公司 | Exhaust gas heat management coupling method and exhaust gas treatment system |
| CN112228189B (en) * | 2020-10-12 | 2021-12-21 | 潍柴动力股份有限公司 | Exhaust gas heat management coupling method and exhaust gas treatment system |
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| Publication number | Publication date |
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| CN102817683B (en) | 2015-09-16 |
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Owner name: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE CO., Free format text: FORMER OWNER: BAIC MOTOR CO., LTD. Effective date: 20131212 |
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Free format text: CORRECT: ADDRESS; FROM: 100021 CHAOYANG, BEIJING TO: 101300 SHUNYI, BEIJING |
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Effective date of registration: 20131212 Address after: 101300 Beijing, Shunyi District Shun Road, No. 25, room 5, 106 Applicant after: Beijing Automobile Research General Institute Co., Ltd. Address before: 100021 Chaoyang District, Warwick, Beijing, No. 10, Peng Long Building Applicant before: Beijing Automibile Co.,Ltd. |
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