CN202417658U - Hybrid bus and SCR (Silicon Controlled Rectifier) heat management system of engine thereof - Google Patents

Hybrid bus and SCR (Silicon Controlled Rectifier) heat management system of engine thereof Download PDF

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Publication number
CN202417658U
CN202417658U CN2011204713955U CN201120471395U CN202417658U CN 202417658 U CN202417658 U CN 202417658U CN 2011204713955 U CN2011204713955 U CN 2011204713955U CN 201120471395 U CN201120471395 U CN 201120471395U CN 202417658 U CN202417658 U CN 202417658U
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CN
China
Prior art keywords
scr
motor
management system
heat management
shutter blade
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Expired - Fee Related
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CN2011204713955U
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Chinese (zh)
Inventor
韩尔樑
潘凤文
刘信奎
袁新枚
何汉清
文武红
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Priority to CN2011204713955U priority Critical patent/CN202417658U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The utility model discloses an SCR (Silicon Controlled Rectifier) heat management system of an engine. The SCR heat management system of the engine comprises an SCR post-processing device arranged on an exhaust pipe of the engine, and further comprises electric window-shades sleeved out of a shell of the SCR post-processing device, wherein the electric window-shades are provided with a plurality of rotatably opened or closed blades of window-shades that are in lap joint end to end; temperature sensors on the front and rear sides of the SCR post-processing device; and a controller that controls the electric window-shades to open or close according to temperature signals collected by the front and rear temperature sensors. The utility model solves the problem of exhaust deterioration caused by over-low exhaust temperature in the operating process of the engine of the hybrid passenger car. The utility model further discloses a hybrid bus with the SCR heat management system of the engine.

Description

A kind of hybrid-power bus and motor SCR heat management system thereof
Technical field
The utility model relates to automobile technical field, particularly a kind of hybrid-power bus and motor SCR heat management system thereof.
Background technique
Along with the development of society and the concern of environmental pollution problem; People have strengthened the dynamics to environmental protection; And the effulent of Motor Vehicle is the major pollutants in the atmosphere; Therefore to the effulent of Motor Vehicle, people adopt various method means to eliminate the harmful matter that it contains, and the main motor post-processing technology means of people's employing at present comprise cooling EGR (discarded recirculation).NOx adsorber, SCR (SCR) and DPR post-processing technologies such as (exhaust gas recirculation add particle trapper).Wherein adopt the SCR technology to handle the harmful matter in the engine emission, especially the NOx compound is a kind of very effective method.
Motor SCR post-processing technology is that the reducing agent urea liquid is sprayed in the engine emission waste gas, and under EGT and air-flow effect, urea can decompose fast; Discharge nitrogen, the NOx effect higher with content reaches the purpose that reduces the NOx discharging; Because the reducing agent of SCR system is a urea; Its stable performance under user mode not, and advantage obtains people's such as it is simple to have a chemical reaction, and required reducing agent relative quantity is few popularization and use.
For hybrid-power bus, can effectively improve and reduce the fuel consume of bus under the city operating mode of blocking up through adopting strategies such as idle stop, DECEL ENLEAN (DFCO, deceleration fuel cut off), motor power-assisted.But concerning the motor of coupling SCR after-treatment system; Frequent idle stop and the DECEL ENLEAN of carrying out can be in the temperature that causes SCR catalyzer (its catalytic temperature is generally more than 300 ℃) constantly reduction in said process, and the temperature of SCR catalyzer is the key factor that influences engine emission.
Therefore, how to solve the hybrid power passenger car motor and in running, hang down the problem that causes deterioration of emission excessively, become the important technological problems that those skilled in the art need to be resolved hurrily owing to arrange temperature.
The model utility content
In view of this, the utility model provides a kind of hybrid-power bus and motor SCR heat management system thereof, in running, hangs down the problem that causes deterioration of emission excessively owing to arrange temperature to solve the hybrid power passenger car motor.
For realizing above-mentioned purpose, the utility model provides following technological scheme:
A kind of motor SCR heat management system comprises the SCR after-treatment device that is arranged on the waste pipe, also comprises:
Be sheathed on the electric-powered shutter of the hull outside of said SCR after-treatment device, which is provided with the shutter blade of a plurality of head and the tail overlap joints, a plurality of said shutter blade are rotatable to be opened or closed;
Be arranged on the said outlet pipe, and be positioned at the front end temperature transducer and the rear end temperature transducer of both sides, said SCR after-treatment device front and back;
Controller, it is controlled said electric-powered shutter and opens or closes according to the temperature signal of said front end temperature transducer and the collection of rear end temperature transducer.
Preferably, in above-mentioned motor SCR heat management system, electric-powered shutter specifically comprises:
First end cap of positioned opposite and second end cap;
Along the circumferential direction be arranged in a plurality of said shutter blade between said first end cap and second end cap;
Be arranged at the central gear of the said first end cap central position, the live axle of this central gear is the hollow shaft that is sheathed on the said outlet pipe;
Be arranged at around said first end cap, and with said central gear planet gear meshed, said planetary pinion is identical with the quantity of said shutter blade, corresponding with it the respectively said planetary pinion of each said shutter blade links to each other.
Preferably, in above-mentioned motor SCR heat management system, said central gear is rotated by motoring.
Preferably, in above-mentioned motor SCR heat management system, the output shaft of said motor is provided with driving pulley, and the live axle of said central gear is provided with driven pulley, and said driving pulley links to each other through driving belt with said driven pulley.
Preferably, in above-mentioned motor SCR heat management system, said shutter blade is the arc step structure, and its front end is overlapped in the upper end of the shutter blade of its front side.
Preferably, in above-mentioned motor SCR heat management system, the fore-end of said shutter blade is positioned at the outside of its rear end part, and said planetary pinion links to each other with the rear end part of said shutter blade.
Preferably, in above-mentioned motor SCR heat management system, the inboard of the fore-end of said shutter blade and the outside of rear end part are equipped with the shutter blade that is adjacent and keep the elastic sealing strip of sealing.
Preferably, in above-mentioned motor SCR heat management system, the inboard of said first end cap, second end cap and shutter blade is coated with thermostable heat-isolating coating.
Preferably; In above-mentioned motor SCR heat management system; Comprise that also the input port and first output port are connected to the two-position three way magnetic valve on the outlet pipe of motor rear end and said SCR after-treatment device front end, second output port of this two-position three way magnetic valve links to each other with the external world through pipeline;
When motor was in DECEL ENLEAN, said controller was controlled said two-position three way magnetic valve and is realized that first output port closes, and second output port is opened;
When the motor commencement of fuel injection, said controller is controlled said two-position three way magnetic valve and is realized that first output port opens, and second output port is closed.
A kind of hybrid-power bus comprises motor SCR heat management system, and said motor SCR heat management system is as above each described motor SCR heat management system.
Can find out from above-mentioned technological scheme; The motor SCR heat management system that the utility model provides is not directly measured the temperature of SCR catalyzer, but a temperature transducer is installed on SCR front end outlet pipe and rear end outlet pipe separately; Measure the delivery temperature of the entrance and exit of SCR after-treatment device; Through setting up mathematical model, find out the relation between the delivery temperature of entrance and exit of SCR catalyst temperature and SCR after-treatment device, thereby obtain the temperature of SCR catalyzer.The utility model is at electric-powered shutter of outside suit of SCR after-treatment device.The function that will realize be: when the SCR catalyst temperature was lower than the NOx conversion ratio and is the pairing temperature of first preset multiple, electric-powered shutter is closed, and was too fast to prevent that the SCR bed temperature from descending.When catalyst temperature is higher than peaked temperature second preset multiple of the conversion ratio of NOx; Electric-powered shutter is opened; Dispelling the heat, when the temperature of catalyzer drops to the maximum temperature of the conversion ratio of NOx till, avoided bed temperature too high and reduce NOx conversion ratio and SCR system reliability.The utility model has solved the hybrid power passenger car motor and in running, has hanged down the problem that causes deterioration of emission excessively owing to arrange temperature through the outside sheathed electric-powered shutter with insulation effect at the SCR after-treatment device.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the motor SCR heat management system that Fig. 1 provides for the utility model embodiment;
Structural representation under the electric-powered shutter opening state that Fig. 2 provides for the utility model embodiment;
Structural representation under the electric-powered shutter closed condition that Fig. 3 provides for the utility model embodiment;
The structural representation of the shutter blade under a kind of angle that Fig. 4 provides for the utility model embodiment;
The structural representation of the shutter blade under the another kind of angle that Fig. 5 provides for the utility model embodiment;
Internal structure schematic representation under the electric-powered shutter opening state that Fig. 6 provides for the utility model embodiment;
Internal structure schematic representation under the electric-powered shutter closed condition that Fig. 7 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of hybrid-power bus and motor SCR heat management system thereof, in running, hang down the problem that causes deterioration of emission excessively owing to arrange temperature to solve the hybrid power passenger car motor.
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1-Fig. 7, the structural representation of the motor SCR heat management system that Fig. 1 provides for the utility model embodiment; Structural representation under the electric-powered shutter opening state that Fig. 2 provides for the utility model embodiment; Structural representation under the electric-powered shutter closed condition that Fig. 3 provides for the utility model embodiment; The structural representation of the shutter blade under a kind of angle that Fig. 4 provides for the utility model embodiment; The structural representation of the shutter blade under the another kind of angle that Fig. 5 provides for the utility model embodiment; Internal structure schematic representation under the electric-powered shutter opening state that Fig. 6 provides for the utility model embodiment; Internal structure schematic representation under the electric-powered shutter closed condition that Fig. 7 provides for the utility model embodiment.
The motor SCR heat management system that the utility model provides comprises the SCR after-treatment device on the outlet pipe that is arranged at motor 1, and in addition the utility model also comprises electric-powered shutter 11, temperature transducer 12 and controller (not shown).Wherein, electric-powered shutter 11 is sheathed on the outside of the housing of SCR after-treatment device, and it can be cylindric horizontal type structure, which is provided with the shutter blade 10 of a plurality of head and the tail overlap joints, and a plurality of shutter blade 10 can turn to and open or close.After electric-powered shutter 11 was closed, each shutter blade 10 head and the tail were overlapped to form the loop configuration of Fig. 3 and sealing shown in Figure 7 successively, so that the SCR after-treatment device is incubated; After electric-powered shutter 11 is opened, has slit (like Fig. 2 and shown in Figure 6) between each shutter blade 10, so that the SCR after-treatment device is dispelled the heat.
Be not easy to carry out owing to directly measure the temperature of SCR catalyzer and carrier, and, the reliability of sensor had higher requirement owing to SCR inner hot environment and complicated gas component.Given this; The utility model is not directly measured the temperature of SCR catalyzer; But a temperature transducer is installed on SCR front end outlet pipe and rear end outlet pipe separately, promptly temperature transducer 12 is two, for the ease of distinguishing the two called after front end temperature transducer and rear end temperature transducer.Front end temperature transducer and rear end temperature transducer all are arranged on the outlet pipe, and are positioned at the forward and backward both sides of SCR after-treatment device.Front end temperature transducer and rear end temperature transducer are respectively applied for the delivery temperature of the entrance and exit of measuring the SCR after-treatment device; Through setting up mathematical model; Find out the relation between the delivery temperature of entrance and exit of SCR catalyst temperature and SCR after-treatment device, thereby obtain the temperature of SCR catalyzer.
Controller is used for the temperature signal according to front end temperature transducer and the collection of rear end temperature transducer; Calculate the SCR catalyst temperature of SCR after-treatment device; And when this SCR catalyst temperature is lower than the NOx conversion ratio and is the pairing temperature of first preset multiple; Control electric-powered shutter 11 is closed, and control electric-powered shutter 11 is opened when this SCR catalyst temperature is higher than second preset multiple of conversion ratio maximum value institute corresponding temperature of NOx, wherein; First preset multiple less than 1, the second preset multiple greater than 1.
The utility model also can work as catalyst temperature when being higher than peaked temperature second preset multiple of the conversion ratio of NOx electric-powered shutter open; And carry out the on-off action of shutter blade 10 at interval by certain hour; To quicken heat radiation; Till when the temperature of catalyzer drops to the maximum temperature of the conversion ratio of NOx, too high and reduce NOx conversion ratio and SCR system reliability to avoid bed temperature.
In the present embodiment, first preset multiple can be 50%, and promptly when the SCR catalyst temperature was lower than the NOx conversion ratio and is 50% pairing temperature, electric-powered shutter 11 was closed; Second preset multiple is 1.1, and promptly venetian blind is opened when the SCR catalyst temperature is higher than 1.1 times of the peaked temperature of conversion ratio of NOx.
In sum; The motor SCR heat management system that the utility model provides is not directly measured the temperature of SCR catalyzer, but a temperature transducer is installed on SCR front end outlet pipe and rear end outlet pipe separately; Measure the delivery temperature of the entrance and exit of SCR after-treatment device; Through setting up mathematical model, find out the relation between the delivery temperature of entrance and exit of SCR catalyst temperature and SCR after-treatment device, thereby obtain the temperature of SCR catalyzer.The utility model is at electric-powered shutter 11 of outside suit of SCR after-treatment device.The function that will realize be: when the SCR catalyst temperature was lower than the NOx conversion ratio and is the pairing temperature of first preset multiple, electric-powered shutter 11 is closed, and was too fast to prevent that the SCR bed temperature from descending.When catalyst temperature is higher than peaked temperature second preset multiple of the conversion ratio of NOx; Electric-powered shutter 11 is opened; To dispel the heat; Till when the temperature of catalyzer drops to the maximum temperature of the conversion ratio of NOx, avoided bed temperature too high and reduce NOx conversion ratio and SCR system reliability.The utility model has solved the hybrid power passenger car motor and in running, has hanged down the problem that causes deterioration of emission excessively owing to arrange temperature through the outside sheathed electric-powered shutter 11 with insulation effect at the SCR after-treatment device.
In order further to optimize technique scheme, the electric-powered shutter 11 that the utility model embodiment provides can specifically comprise shutter blade 10, central gear 7, planetary pinion 8, first end cap 13 and second end cap.Wherein, first end cap 13 and the second end cap positioned opposite are used to set up shutter blade 10.Shutter blade 10 is a plurality of, and along the circumferential direction is arranged between first end cap 13 and second end cap.Central gear is arranged at the central position of first end cap 13 (it is the end cap near SCR after-treatment device rear end), and the live axle of this central gear 7 is the hollow shaft that is sheathed on the outlet pipe.Planetary pinion 8 is arranged at around first end cap 13, and meshes with central gear 7, and planetary pinion 8 is identical with the quantity of shutter blade 10, and the planetary pinion 8 that each shutter blade 10 is corresponding with it respectively links to each other.Usually the downside at shutter blade 10 is provided with retaining ring; This retaining ring is used for linking to each other with planetary gear shaft; Retaining ring is generally two; One of them retaining ring is used for linking to each other with the gear shaft of planetary pinion 8, and another retaining ring is used for being connected second end cap through axle, thereby realizes shutter blade 10 is erected at the purpose on first end cap 13 and second end cap.
Central gear 7 can be driven by motor 4 and rotate, and the output shaft of motor 4 is provided with driving pulley 5, and the live axle of central gear 7 is provided with driven pulley 6, and driving pulley 5 and driven pulley 6 link to each other through driving belt.Controller is used for when the SCR catalyst temperature is lower than the NOx conversion ratio and is the pairing temperature of first preset multiple; Control motor 4 rotates to direction electric-powered shutter 11 is closed, and control motor 4 rotates to another direction electric-powered shutter 11 is opened when this SCR catalyst temperature is higher than second preset multiple of conversion ratio maximum value institute corresponding temperature of NOx.
Can know that by the foregoing description the driving mechanism power of the utility model drives belt pulley by motor 4 and provides.Because the length of belt can suitably be adjusted, the adjustment that helps motor 4 positions is to adapt to the integral layout of bus.The external diameter of driving pulley 5 is less than the external diameter of driven pulley 6, to reach the purpose of deceleration.
Like Fig. 4 and shown in Figure 5; In order to guarantee to fit closely between adjacent two shutter blade 10; After preventing electric-powered shutter 11 complete closures; Air flows between the slit between two shutter blade 10 and takes away heat, and the utility model is designed to the arc step structure with shutter blade 10, and its front end is overlapped in the upper end of the shutter blade of its front side.The fore-end 101 of shutter blade 10 is positioned at the outside of its rear end part 102; It is the annular diameter that annular diameter that the fore-end 101 of each shutter blade 10 surrounds surrounds greater than its rear end part 102; And planetary pinion 8 links to each other with the rear end part of shutter blade 10, and promptly retaining ring is arranged at the rear end part of shutter blade 10.
In order further to optimize technique scheme, be equipped with the shutter blade 10 that is adjacent in the outside of the inboard of the fore-end 101 of shutter blade 10 and rear end part 102 and keep the elastic sealing strip 14 of sealing, so that sealing reaches the best.In addition, also can be coated with thermostable heat-isolating coating, make the closed fully back of electric-powered shutter thermal insulation property reach best in the inboard of first end cap 13, second end cap and shutter blade 10.
Because shutter blade 10 end faces and the preparation process of end cap (first end cap 13 and second end cap) and the difficulty of mounting process; Cause shutter blade 10 and end cap joint place; The slit of existence is also arranged, cause gas flow after venetian blind is closed fully, take away heat.For anti-phenomenon here takes place, in the present embodiment, elastic sealing gasket is installed in the shutter blade 10 and the joint place of end cap.
In order further to optimize technique scheme; The utility model can comprise that also the input port and first output port are connected to the two-position three way magnetic valve 3 on the outlet pipe of motor rear end and SCR after-treatment device front end, and second output port of this two-position three way magnetic valve links to each other with the external world through pipeline.Promptly on the front end outlet pipe of turbo machine 2 rear ends of motor 1 and SCR after-treatment device, draw an arm; And a two-position three way magnetic valve 3 is installed at the arm place of drawing; When motor 1 was in DECEL ENLEAN, controller control two-position three way magnetic valve 3 realized that the first output port B closes, and the second output port A opens; The waste gas of motor 1 is directly flowed out from arm, avoid the temperature of SCR catalyzer to descend.When motor 1 commencement of fuel injection, controller control two-position three way magnetic valve 3 realizes that the first output port B opens, and the second output port A closes, and makes the normal waste gas of exhaust get into back SCR processing system and is processed.
The hybrid-power bus that the utility model provides comprises motor SCR heat management system, and wherein, motor SCR heat management system is the as above disclosed motor SCR of embodiment heat management system.Because the hybrid-power bus that the utility model provides has above-mentioned motor SCR heat management system, therefore have all technique effects of above-mentioned motor SCR heat management system concurrently, this paper repeats no more.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (10)

1. a motor SCR heat management system comprises the SCR after-treatment device on the outlet pipe that is arranged at motor (1), it is characterized in that, also comprises:
Be sheathed on the electric-powered shutter (11) of the hull outside of said SCR after-treatment device, which is provided with the shutter blade (10) of a plurality of head and the tail overlap joints, a plurality of said shutter blade (10) are rotatable to be opened or closed;
Be arranged on the said outlet pipe, and be positioned at the front end temperature transducer and the rear end temperature transducer of both sides, said SCR after-treatment device front and back;
Controller, it is controlled said electric-powered shutter (11) and opens or closes according to the temperature signal of said front end temperature transducer and the collection of rear end temperature transducer.
2. motor SCR heat management system as claimed in claim 1 is characterized in that, electric-powered shutter (11) specifically comprises:
First end cap (13) and second end cap of positioned opposite;
Along the circumferential direction be arranged in a plurality of said shutter blade (10) between said first end cap (13) and second end cap;
Be arranged at the central gear (7) of said first end cap (13) central position, the live axle of this central gear (7) is the hollow shaft that is sheathed on the said outlet pipe;
Be arranged at said first end cap (13) on every side; And with said central gear (7) planet gear meshed (8); Said planetary pinion (8) is identical with the quantity of said shutter blade (10), and the said planetary pinion (8) that each said shutter blade (10) is corresponding with it respectively links to each other.
3. motor SCR heat management system as claimed in claim 2 is characterized in that, said central gear (7) is driven by motor (4) and rotates.
4. motor SCR heat management system as claimed in claim 3; It is characterized in that; The output shaft of said motor (4) is provided with driving pulley (5); The live axle of said central gear (7) is provided with driven pulley (6), and said driving pulley (5) links to each other through driving belt with said driven pulley (6).
5. motor SCR heat management system as claimed in claim 2 is characterized in that said shutter blade (10) is the arc step structure, and its front end is overlapped in the upper end of the shutter blade of its front side.
6. motor SCR heat management system as claimed in claim 5; It is characterized in that; The fore-end (101) of said shutter blade (10) is positioned at the outside of its rear end part (102), and said planetary pinion (8) links to each other with the rear end part (102) of said shutter blade (10).
7. motor SCR heat management system as claimed in claim 6; It is characterized in that the inboard of the fore-end (101) of said shutter blade (10) and the outside of rear end part (102) are equipped with the shutter blade (10) that is adjacent and keep the elastic sealing strip (14) of sealing.
8. motor SCR heat management system as claimed in claim 2 is characterized in that, the inboard of said first end cap (13), second end cap and shutter blade (10) is coated with thermostable heat-isolating coating.
9. like each described motor SCR heat management system of claim 1-8; It is characterized in that; Comprise that also the input port and first output port are connected to the two-position three way magnetic valve (3) on the outlet pipe of motor rear end and said SCR after-treatment device front end, second output port of this two-position three way magnetic valve links to each other with the external world through pipeline;
When motor was in DECEL ENLEAN, said controller was controlled said two-position three way magnetic valve and is realized that first output port closes, and second output port is opened;
When the motor commencement of fuel injection, said controller is controlled said two-position three way magnetic valve and is realized that first output port opens, and second output port is closed.
10. a hybrid-power bus comprises motor SCR heat management system, it is characterized in that, said motor SCR heat management system is like each described motor SCR heat management system of claim 1-9.
CN2011204713955U 2011-11-23 2011-11-23 Hybrid bus and SCR (Silicon Controlled Rectifier) heat management system of engine thereof Expired - Fee Related CN202417658U (en)

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Application Number Priority Date Filing Date Title
CN2011204713955U CN202417658U (en) 2011-11-23 2011-11-23 Hybrid bus and SCR (Silicon Controlled Rectifier) heat management system of engine thereof

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Application Number Priority Date Filing Date Title
CN2011204713955U CN202417658U (en) 2011-11-23 2011-11-23 Hybrid bus and SCR (Silicon Controlled Rectifier) heat management system of engine thereof

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CN202417658U true CN202417658U (en) 2012-09-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536395A (en) * 2011-11-23 2012-07-04 潍柴动力股份有限公司 Hybrid bus and SCR (selective catalytic reduction) heat management system of engine thereof
CN108001442A (en) * 2017-11-14 2018-05-08 潍柴动力股份有限公司 The control method and control system of the tail-off of motor vehicle driven by mixed power
CN115403087A (en) * 2022-10-18 2022-11-29 东营尚牧农业科技有限公司 A effluent treatment plant for fish and shrimp are bred

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536395A (en) * 2011-11-23 2012-07-04 潍柴动力股份有限公司 Hybrid bus and SCR (selective catalytic reduction) heat management system of engine thereof
CN102536395B (en) * 2011-11-23 2014-04-02 潍柴动力股份有限公司 Hybrid bus and SCR (selective catalytic reduction) heat management system of engine thereof
CN108001442A (en) * 2017-11-14 2018-05-08 潍柴动力股份有限公司 The control method and control system of the tail-off of motor vehicle driven by mixed power
CN115403087A (en) * 2022-10-18 2022-11-29 东营尚牧农业科技有限公司 A effluent treatment plant for fish and shrimp are bred
CN115403087B (en) * 2022-10-18 2023-10-03 东营尚牧农业科技有限公司 A effluent treatment plant for fish and shrimp is bred

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