CN201180574Y - Secondary air system structure for gasoline engine - Google Patents
Secondary air system structure for gasoline engine Download PDFInfo
- Publication number
- CN201180574Y CN201180574Y CNU2008200605023U CN200820060502U CN201180574Y CN 201180574 Y CN201180574 Y CN 201180574Y CN U2008200605023 U CNU2008200605023 U CN U2008200605023U CN 200820060502 U CN200820060502 U CN 200820060502U CN 201180574 Y CN201180574 Y CN 201180574Y
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- air
- secondary air
- engine
- system structure
- control valve
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Abstract
The utility model relates to a secondary air system structure used for a gasoline engine, which comprises a secondary air control valve connected with an engine, an air cleaner connected with an intake manifold of the engine, and a three-way catalytic converter connected with an exhaust manifold of the engine. The secondary air system structure is characterized in that an air outlet of the air cleaner is connected with an air inlet of the secondary air control valve; the air inlet is connected with the intake manifold of an engine cylinder body through a throttle valve; the control end of the secondary air control valve communicates with the intake manifold; and the air outlet communicates with the exhaust manifold of the engine cylinder body. The secondary air system structure solves the problems in the prior secondary air system that not only the structure is complex and the air emission is below standard, but also ECU of the engine is required to be re-calibrated.
Description
Technical field
The utility model relates to a kind of petrol engine secondary ventilation system structure.
Background technique
Along with the environmental regulation of toxic emission is more and more stricter, the emission standard of current automobile is also more and more higher, brings up to present European ECE emission standard IV/V level by former European ECE emission standard II/III level; Environmental protection and energy-conservation two main starting points that become current power train in vehicle application technical development.On reducing discharging, mainly contain by improving processing method in the machine that engine combustion process is the master,, comprise the improvement firing chamber, gasoline injection system, variable air inlet control etc. are set such as the motor transformation; Also have by vent systems reprocessing and the outer processing method of machines such as crankcase gas blowby or oily vapours section processes.No matter be in the machine or the outer motor of handling for moulding and production of machine, want to reduce discharging, the design of increase, demarcation and experimentation cost are beyond affordability.Traditional motor is installed additional the problem that secondary ventilation system then can workout cost, can reduce discharging simultaneously, satisfy high-level Abgasgesetz.
Secondary ventilation system is a kind of effective means that reduces exhaust emissions, in the engine combustion process under the different operating modes, unburnt situation is also different, when motor moves in operating modes such as acceleration, deceleration, ignition timing, air fuel ratio and exhaust gas recirculatioon value all are not in the optimum state, and combustion quality is worsened, and the HC discharging is increased, particularly slowing down and idling operation, the HC discharge amount is very high.If at this moment fresh air is delivered in the outlet pipe, make further oxidation of CO, HC and burning in the exhaust, thereby reduce the CO in the discharging, the content of HC by secondary ventilation system.The at present external secondary ventilation system of producing generally comprises systems such as air pump, air-strainer, diverter valve, solenoid valve, complex structure not only, but also will the ECU of motor be demarcated again.
The model utility content
Technical problem to be solved in the utility model is: at the problem of above-mentioned existence, provide a kind of structure simple relatively petrol engine secondary ventilation system structure.
The utility model is achieved in that
A kind of petrol engine secondary ventilation system structure, comprise the secondary air control valve that links to each other with motor, the air-strainer that links to each other with the intake manifold of motor and the ternary catalyzing unit that links to each other with the gas exhaust manifold of motor, the air outlet of described air-strainer links to each other with the suction port of described secondary air control valve, and suction port links to each other with the intake manifold of described engine cylinder-body by closure; The control end of described secondary air control valve communicates with described intake manifold, and the air outlet communicates with the gas exhaust manifold of described engine cylinder-body by one-way valve.
Described one-way valve communicates with the gas exhaust manifold of described engine cylinder-body by metal connecting tube.
The gas exhaust manifold of described engine cylinder-body is connected with the suction port screw thread couple of ternary catalyzing unit by described metal connecting tube.
Described metal connecting tube inside is provided with cavernous honeycombed catalyzer, and outer wall is provided with screw thread.
The beneficial effects of the utility model:
According to the utility model, when the anxious deceleration of motor, the closure quick closedown, degree of vacuum height in the intake manifold, because vacuum pressure effect, drive the valve of the spring pulling control end in the secondary air control valve, thereby cut off the supply of secondary air, can effectively prevent to take place in the vent systems tempering.One-way valve then can be controlled secondary air and only flow to discharge directions, and prevents that waste gas from releasing from metal connecting tube.Contain cavernous honeycombed catalyzer in the metal connecting tube, after secondary air entered into ternary catalyzing unit by metal connecting tube, the harmful gas in the catalytic oxidation exhaust can purify the exhaust of releasing on a small quantity simultaneously better.
Further describe the utility model below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
According to Fig. 1, use in the secondary ventilation system structure at a kind of petrol engine of the utility model, there are three pipelines to be connected respectively on intake manifold 12, air-strainer 4, the one-way valve 1 on the secondary air control valve 2.
Draw an air outlet on the air-strainer 4 with conventional engines separately, be used to provide the needed air of secondary ventilation system, connecting pipeline 8 one ends are connected in the outlet of engine air filter 4, and the other end then is connected on the suction port of secondary air control valve 2.Secondary air control valve 2 is fixed on the engine cylinder-body 6 by support, vacuum line 9 one is terminated on the control end of secondary air control valve 2, and the other end links to each other with the intake manifold 12 of motor.Connecting pipeline 10 1 ends are connected the air outlet of secondary air control valve 2, and the other end then is connected on the one-way valve 1.One-way valve 1 is connected by connecting pipeline 11 with metal connecting tube 3, the airintake direction of control secondary air; Metal connecting tube 3 is positioned on the suction tude of ternary catalyzing unit 5, metal connecting tube 3 surfaces have outside thread and scribble sealer, and have the boss that metal connecting tube is installed on the suction tude of ternary catalyzing unit 5, perforate in the middle of the boss, internal surface has internal thread, and metal connecting tube 3 passes through the rotation screw threads for fastening on the boss of ternary catalyzing unit 5 suction tude with ternary catalyzing unit 5 suction tude.
Claims (4)
1, a kind of petrol engine secondary ventilation system structure, comprise the secondary air control valve that links to each other with motor, the air-strainer that links to each other with the intake manifold of motor and the ternary catalyzing unit that links to each other with the gas exhaust manifold of motor, it is characterized in that: the air outlet of described air-strainer links to each other with the suction port of described secondary air control valve, and suction port links to each other with the intake manifold of described engine cylinder-body by closure; The control end of described secondary air control valve communicates with described intake manifold, and the air outlet communicates with the gas exhaust manifold of described engine cylinder-body by one-way valve.
2, petrol engine according to claim 1 secondary ventilation system structure is characterized in that: described one-way valve communicates with the gas exhaust manifold of described engine cylinder-body by metal connecting tube.
3, petrol engine according to claim 1 secondary ventilation system structure is characterized in that: the gas exhaust manifold of described engine cylinder-body is connected with the suction port screw thread couple of ternary catalyzing unit by described metal connecting tube.
4, according to claim 2 or 3 described petrol engine secondary ventilation system structures, it is characterized in that: described metal connecting tube inside is provided with cavernous honeycombed catalyzer, and outer wall is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200605023U CN201180574Y (en) | 2008-04-08 | 2008-04-08 | Secondary air system structure for gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200605023U CN201180574Y (en) | 2008-04-08 | 2008-04-08 | Secondary air system structure for gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180574Y true CN201180574Y (en) | 2009-01-14 |
Family
ID=40250075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200605023U Expired - Fee Related CN201180574Y (en) | 2008-04-08 | 2008-04-08 | Secondary air system structure for gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180574Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2015018215A1 (en) * | 2013-08-08 | 2015-02-12 | 安徽江淮汽车股份有限公司 | Secondary air jetting apparatus for engine |
| CN105569878A (en) * | 2016-02-18 | 2016-05-11 | 力帆实业(集团)股份有限公司 | One-way valve ventilating structure of air inlet system of motorcycle |
| CN108026866A (en) * | 2015-09-11 | 2018-05-11 | 卡特彼勒公司 | Natural gas engine system with improved transient response |
| CN105569879B (en) * | 2016-02-18 | 2018-05-29 | 力帆实业(集团)股份有限公司 | A kind of motorcycle air inlet system and exhaust system |
| CN109026308A (en) * | 2018-07-24 | 2018-12-18 | 联合汽车电子有限公司 | Exhaust system and dynamical system |
| CN110523735A (en) * | 2018-08-31 | 2019-12-03 | 海南汉地阳光石油化工有限公司 | A kind of air cleaning unit improving high-voltage motor security performance |
-
2008
- 2008-04-08 CN CNU2008200605023U patent/CN201180574Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015018215A1 (en) * | 2013-08-08 | 2015-02-12 | 安徽江淮汽车股份有限公司 | Secondary air jetting apparatus for 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 |
| CN103628966B (en) * | 2013-11-20 | 2016-01-06 | 安徽江淮汽车股份有限公司 | The air-injection system that a kind of reduction discharges pollutants |
| CN108026866A (en) * | 2015-09-11 | 2018-05-11 | 卡特彼勒公司 | Natural gas engine system with improved transient response |
| CN108026866B (en) * | 2015-09-11 | 2020-10-30 | 卡特彼勒公司 | Natural gas engine system with improved transient response |
| CN105569878A (en) * | 2016-02-18 | 2016-05-11 | 力帆实业(集团)股份有限公司 | One-way valve ventilating structure of air inlet system of motorcycle |
| CN105569879B (en) * | 2016-02-18 | 2018-05-29 | 力帆实业(集团)股份有限公司 | A kind of motorcycle air inlet system and exhaust system |
| CN105569878B (en) * | 2016-02-18 | 2018-05-29 | 力帆实业(集团)股份有限公司 | A kind of check valve ventilation device of air intaking for motor cycle system |
| CN109026308A (en) * | 2018-07-24 | 2018-12-18 | 联合汽车电子有限公司 | Exhaust system and dynamical system |
| CN110523735A (en) * | 2018-08-31 | 2019-12-03 | 海南汉地阳光石油化工有限公司 | A kind of air cleaning unit improving high-voltage motor security performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20160408 |