CN201891527U - Control device for controlling emission of nitrogen oxides of internal-combustion engine - Google Patents
Control device for controlling emission of nitrogen oxides of internal-combustion engine Download PDFInfo
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- CN201891527U CN201891527U CN2010206276258U CN201020627625U CN201891527U CN 201891527 U CN201891527 U CN 201891527U CN 2010206276258 U CN2010206276258 U CN 2010206276258U CN 201020627625 U CN201020627625 U CN 201020627625U CN 201891527 U CN201891527 U CN 201891527U
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- combustion engine
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- steam
- control gear
- humidity
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Abstract
The utility model provides a control device for controlling the emission of nitrogen oxides of an internal-combustion engine, which comprises a switch unit, a humidity sensor used for detecting the humidity in an air inlet pipe of the internal-combustion engine, a steam unit used for generating steam, and a controller used for controlling the switch-on and switch-off of the switch unit according to a humidity signal detected by the humidity sensor, wherein the steam unit is connected with the air inlet pipe of the internal-combustion engine, the switch unit is connected between the steam unit and the air inlet pipe, and the humidity sensor and the switch unit are electrically connected with the controller. In the control device for controlling the emission of the nitrogen oxides of the internal-combustion engine disclosed by the utility model, the humidity in the air inlet pipe of the internal-combustion engine is detected by the humidity sensor, the switch unit is controlled by the controller according to the humidity signal detected by the humidity sensor so as to make the steam generated by the steam unit enter the air inlet pipe and increase the air humidity in the air inlet pipe, and further the emission of the nitrogen oxides of the internal-combustion engine can be controlled.
Description
Technical field
The utility model relates to a kind of control gear of controlling combustion engine discharged nitrous oxides.
Background technique
Serious day by day along with automobile exhaust pollution, the motor vehicle exhaust emission legislation is imperative, the corresponding regulations system has just been set up to motor vehicle exhaust emission as far back as the 60 to 70's in countries in the world, rules by strictness have promoted the Vehicle Emission Control development of technology, and, make the formulation of higher standard become possibility again along with the improving constantly of Vehicle Emission Control technology.
Motor vehicle emission is meant the CO(carbon monoxide of discharging from waste gas), HC+NOx(hydrocarbon and nitrogen oxide), the PM(particulate, soot) etc. harmful gas.They all are the harmful gases that motor produces in burning work done process.The reason that these harmful gases produce is different, and CO is the incomplete intermediate product of fuel oil oxidation, can produce CO when oxygen is inadequate, and mixture strength reaches the inhomogeneous CO increase that all can make in the exhaust of mixed gas greatly.Reasons such as HC is a unburned material in the fuel, and is inhomogeneous owing to mixed gas, that chamber wall is cold cause the part fuel oil not have enough time to burn and just are discharged away.NOx is a kind of material that fuel (gasoline) produces in combustion process.A kind of material that anoxic produced when PM also was oil inflame, wherein the most obvious with diesel engine.Because the cracking under High Temperature High Pressure of diesel engine using compression ignite mode, diesel oil more is easy to generate the observable soot of a large amount of naked eyes.
Summary of the invention
The utility model provides a kind of control gear of controlling combustion engine discharged nitrous oxides for solving the technical problem of discharged nitrous oxides in the existing vehicle exhaust.
A kind of control gear of controlling combustion engine discharged nitrous oxides, wherein, described control gear comprises: switch element, be used for detecting internal-combustion engine suction tude humidity humidity transducer, be used to produce the steam unit of steam and the controller of the moisture signal control switch unit folding that is used for detecting according to humidity transducer, described steam unit is connected with the suction tude of internal-combustion engine, described switch element is connected between described steam unit and the suction tude, and described humidity transducer and switch element all are electrically connected with described controller.
Further, described controller is a combustion engine control.
Described steam unit comprises radiator, steam chest and kettle, and described kettle is connected with described steam chest, and described radiator is installed in the described steam chest.
Described radiator is connected with the cooling pipe of internal-combustion engine.
The liquid level attention gatter that is provided with liquid level sensor in the described kettle and is electrically connected with described liquid level sensor.
Described kettle is provided with filler cover, and the top of described kettle is communicated with the top of described steam chest, is provided with in the described filler cover to be used for keeping the pressure balanced one-way valve of steam chest when internal-combustion engine quits work.
Described control gear also comprises the temperature transducer of the temperature that is used for detecting internal-combustion engine cooling pipe cooling liquid, and described temperature transducer is electrically connected with described controller.
Described switch element is a solenoid valve.
The control gear of controlling combustion engine discharged nitrous oxides of the present utility model, by the humidity in the humidity transducer detection intake lines of combustion engines, the moisture signal control switch unit that controller detects according to humidity transducer, thereby the steam that makes steam unit produce enters suction tude, thereby the humidity of the air in the raising suction tude, and then discharging that can the controlling combustion engine nitrogen oxide.
Description of drawings
Fig. 1 is the schematic representation of the control gear of the controlling combustion engine discharged nitrous oxides that provides of the utility model.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
According to a kind of mode of execution of the present utility model, as shown in Figure 1, a kind of control gear of controlling combustion engine discharged nitrous oxides, wherein, this control gear comprises: switch element 5, be used for detecting the humidity transducer 3 of humidity of the suction tude 2 of internal-combustion engine 1, the controller 4 of moisture signal control switch unit 5 foldings that are used to produce the steam unit of steam and are used for detecting according to humidity transducer 3, steam unit is connected with the suction tude 2 of internal-combustion engine 1, switch element 5 is connected between steam unit and the suction tude 2, and humidity transducer 3 and switch element 5 all are electrically connected with controller 4.
Controller 4 can various suitable control gear, and as being single-chip microcomputer or other control chip etc., in order to reduce taking up room of control gear, further, controller 4 is a combustion engine control.Combustion engine control is the device that automobile itself has, and utilizes the controller 4 of combustion engine control as control gear, can make full use of existing resource, reduces cost.
Humidity transducer 3 is used for detecting the humidity of the air of the suction tude 2 of internal-combustion engine 1, when the humidity of the air that detects is less than or equal to certain value, controller 4 control switch unit, 5 conductings, thus make the steam in the steam unit enter suction tude 2, thus improve the humidity of the air in the suction tude 2; When detected humidity of the air is worth greater than certain, can need not steam in the steam unit this moment and improve humidity of the air in the suction tude, controller 4 control switch unit 5 are closed, thereby make the steam in the steam unit can't enter suction tude.
Because the moisture content in the air-intake of combustion engine has certain influence to the discharge capacity of nitrogen oxide, ambient humidity receives publicity day by day to the influence of engine exhaust, existing test shows: when airborne humidity is higher, the discharge amount of nitrogen oxide can significantly reduce, and humidity and nitrogen oxide are linear.So the utility model passes through to keep ambient humidity in the humidity value scope of regulation, thereby reach the purpose of effective control nitrogen oxide emission.
Steam unit can be the device of various suitable generation steam, and according to a kind of mode of execution of the present utility model, steam unit comprises radiator 9, steam chest 10 and kettle 7, and kettle 7 is connected with steam chest 10, and radiator 9 is installed in the steam chest 10.
Kettle 7 is used to store the water that produces steam, and in order to reach better effect, the water in the kettle 7 is purified water, and kettle 7 and steam chest 10 are connected, and when the water level in the steam chest 10 reduced owing to evaporation, the water in the kettle 7 entered steam chest 10 automatically.
Radiator 9 is used to provide generation steam required heat, radiator 9 can utilize various suitable thermals source, as generating heat with electricity, in order rationally to utilize existing resource, preferably, radiator 9 is connected with the cooling pipe 12 of internal-combustion engine 1, promptly is provided with the loop of loop as constituting by water pipe 11 of cooling liquid between the cooling pipe 12 of internal-combustion engine 1 and the radiator 9, is used as the thermal source of steam by the cooling liquid that flows out internal-combustion engine 1.Can also further reduce the temperature of the cooling liquid that flows back to radiator like this, help making rational use of resources, reduce the power demand of automobile batteries group.
Water shortage in the kettle 7 and meeting accident, preferably, the liquid level attention gatter 6 that in kettle 7, is provided with liquid level sensor 8 and is electrically connected with liquid level sensor 8.Liquid level sensor 8 is used for detecting the liquid level (being water level) of kettle 7, and the liquid level in kettle 7 is lower than certain setting value, liquid level attention gatter 6 can be luminous or glimmer luminous with the prompting related personnel to kettle 7 water fillings.
Water filling for convenience, kettle 7 is provided with the filler cover (not shown), gets final product to kettle 7 water fillings by filler cover.The top of kettle 7 is communicated with the top of steam chest 10 as is communicated with by pipeline, after internal-combustion engine 1 quits work, in order to keep the pressure balance in the steam chest 10, is provided with the one-way valve (not shown) in the filler cover.After internal-combustion engine 1 quit work, the pressure in the steam chest 10 reduced, and by one-way valve atmosphere was sucked steam chest 10, thus the balance of keep-uping pressure.
Certainly, also can an opening be set on steam chest 10, one-way valve be set at this opening.
Can also be communicated with at other position between kettle 7 and the steam chest 10, be communicated with the sidewall of steam chest 10 as the top of kettle 7, as long as can be so that the space above kettle 7 and steam chest 10 middle water levels communicates.
For control gear is worked better, further, control gear also comprises the temperature transducer 13 of the temperature of cooling pipe 12 cooling liquids that are used for detecting internal-combustion engine 1, and temperature transducer 13 is electrically connected with controller 4.
Temperature transducer 13 sends to controller 4 with the temperature of detected cooling liquid, and controller 4 is according to the work of the temperature signal control The whole control device that receives.
When reaching certain temperature as 85 ℃ as temperature when cooling liquid, controller 4 control The whole control device work; When the temperature of cooling liquid was lower than certain temperature as 80 ℃, controller 4 control The whole control devices quit work or do not start working.The required temperature that reaches of cooling liquid when those skilled in the art can rationally set control gear work according to actual conditions.
For the ease of the work of control switch unit 5, preferably, switch element 5 is a solenoid valve.Controller 4 as required can control electromagnetic valve conducting or close, thereby make the steam in the steam chest 10 enter the suction tude 2 of internal-combustion engine 1 or stop to enter suction tude 2.
The control gear of controlling combustion engine discharged nitrous oxides of the present utility model, by the humidity in the humidity transducer 3 detection intake lines of combustion engines, the moisture signal control switch unit 5 that controller 4 detects according to humidity transducer 3, thereby the steam that makes steam unit produce enters suction tude 2, thereby improve the humidity of the air in the suction tude 2, and then discharging that can the controlling combustion engine nitrogen oxide.Simultaneously, the utility model utilizes the controller 4 of combustion engine control as control gear, utilizes the temperature of cooling liquid in the internal-combustion engine cooling pipe to produce steam, thereby has rationally utilized existing resource, has reduced cost.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. the control gear of a controlling combustion engine discharged nitrous oxides, it is characterized in that, described control gear comprises: switch element, be used for detecting internal-combustion engine suction tude humidity humidity transducer, be used to produce the steam unit of steam and the controller of the moisture signal control switch unit folding that is used for detecting according to humidity transducer, described steam unit is connected with the suction tude of internal-combustion engine, described switch element is connected between described steam unit and the suction tude, and described humidity transducer and switch element all are electrically connected with described controller.
2. control gear as claimed in claim 1 is characterized in that, described controller is a combustion engine control.
3. control gear as claimed in claim 2 is characterized in that described steam unit comprises radiator, steam chest and kettle, and described kettle is connected with described steam chest, and described radiator is installed in the described steam chest.
4. control gear as claimed in claim 3 is characterized in that, described radiator is connected with the cooling pipe of internal-combustion engine.
5. control gear as claimed in claim 3 is characterized in that, the liquid level attention gatter that is provided with liquid level sensor in the described kettle and is electrically connected with described liquid level sensor.
6. control gear as claimed in claim 2, it is characterized in that, described kettle is provided with filler cover, and the top of described kettle is communicated with the top of described steam chest, is provided with in the described filler cover to be used for keeping the pressure balanced one-way valve of steam chest when internal-combustion engine quits work.
7. control gear as claimed in claim 3 is characterized in that, described control gear also comprises the temperature transducer of the temperature that is used for detecting internal-combustion engine cooling pipe cooling liquid, and described temperature transducer is electrically connected with described controller.
8. control gear as claimed in claim 1 is characterized in that, described switch element is a solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206276258U CN201891527U (en) | 2010-11-27 | 2010-11-27 | Control device for controlling emission of nitrogen oxides of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206276258U CN201891527U (en) | 2010-11-27 | 2010-11-27 | Control device for controlling emission of nitrogen oxides of internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891527U true CN201891527U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206276258U Expired - Lifetime CN201891527U (en) | 2010-11-27 | 2010-11-27 | Control device for controlling emission of nitrogen oxides of internal-combustion engine |
Country Status (1)
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| CN (1) | CN201891527U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925072A (en) * | 2014-04-12 | 2014-07-16 | 哈尔滨工程大学 | EGR (exhaust gas recirculation) and intake humidification based supercharged diesel engine environment protection device |
| CN104688032A (en) * | 2015-03-26 | 2015-06-10 | 刘甄 | Water boilers |
| CN115450772A (en) * | 2022-09-27 | 2022-12-09 | 东风商用车有限公司 | Apparatus and strategy for controlling engine NOx emissions |
-
2010
- 2010-11-27 CN CN2010206276258U patent/CN201891527U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925072A (en) * | 2014-04-12 | 2014-07-16 | 哈尔滨工程大学 | EGR (exhaust gas recirculation) and intake humidification based supercharged diesel engine environment protection device |
| CN104688032A (en) * | 2015-03-26 | 2015-06-10 | 刘甄 | Water boilers |
| CN115450772A (en) * | 2022-09-27 | 2022-12-09 | 东风商用车有限公司 | Apparatus and strategy for controlling engine NOx emissions |
| CN115450772B (en) * | 2022-09-27 | 2023-10-10 | 东风商用车有限公司 | Strategy for controlling engine NOx emissions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
|
| CX01 | Expiry of patent term |