CN205383011U - Exhaust gas recirculation air duct and engine - Google Patents
Exhaust gas recirculation air duct and engine Download PDFInfo
- Publication number
- CN205383011U CN205383011U CN201620121171.4U CN201620121171U CN205383011U CN 205383011 U CN205383011 U CN 205383011U CN 201620121171 U CN201620121171 U CN 201620121171U CN 205383011 U CN205383011 U CN 205383011U
- Authority
- CN
- China
- Prior art keywords
- gas recirculation
- waste gas
- airway
- electromotor
- intake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses an exhaust gas recirculation air duct and engine wherein, is formed with a plurality of ventholes (11) on the pipe wall of the exit end of this exhaust gas recirculation air duct (1) to form the air current of the multi -direction injection of orientation. Through above -mentioned technical scheme, through forming a plurality of ventholes on the pipe wall of the exit end at the exhaust gas recirculation air duct, can be by an air current that a plurality of directions of pore forming orientation are sprayed for waste gas easier fresh air with on every side mix, obtains more even mist, is favorable to the reaction of combustion among the engine cylinder block, avoids the engine to take place the knockings, improves driving safety.
Description
Technical field
This utility model relates to engine components, in particular it relates to a kind of waste gas recirculation airway and electromotor.
Background technology
Gas recirculation system (ExhaustGasRecirculation) is called for short EGR, is that the sub-fraction of waste gas diesel engine or gasoline engine produced sends back to cylinder again.EGR gas is relatively low due to oxygen content, and having inertia will retarded combustion process, say, that burning velocity will slow down thus causing that the pressure initiation process in combustor slows down, here it is the main cause that oxynitride can reduce.Total exhaust gas flow (massflow) being made to reduce it addition, improve ER EGR Rate, therefore total in toxic emission pollutant output will reduce relatively.
The waste gas at waste pipe place is imported inlet manifold by EGR airway by gas recirculation system, it is achieved waste gas recirculation.After the waste gas needs led back to by EGR airway are mixed with ozone, continue to import the internal utilization that realizes again burning of engine cylinder-body.But, owing to being not provided with corresponding gas mixer, waste gas and fresh air are mixed, therefore can not be sufficiently mixed uniformly, cause that the gas mixing in inlet manifold is uneven, the air inflow of each combustor gaseous mixture is also different, phenomenon of detonation easily occurs, and makes the power output instability of electromotor.
Utility model content
The purpose of this utility model is to provide one and contributes to waste gas and the well-mixed waste gas recirculation airway of fresh air.
It addition, this utility model additionally provides a kind of electromotor, the waste gas recirculation airway of this electromotor contributes to waste gas and is sufficiently mixed with fresh air.
To achieve these goals, this utility model provides a kind of waste gas recirculation airway, it is characterised in that be formed with multiple venthole on the tube wall of the port of export of this waste gas recirculation airway, to form the air-flow towards multi-direction injection.
Preferably, described venthole is uniformly distributed along the circumference of described waste gas recirculation airway.
Preferably, described waste gas recirculation airway is many pipe segment structures, is connected by bend pipe transition between adjacent pipeline section.
It addition, this utility model additionally provides a kind of electromotor, wherein, this electromotor includes the waste gas recirculation airway according to any one in above scheme, and this waste gas recirculation airway is installed between described waste pipe and inlet manifold.
Preferably, described electromotor includes the gaseous effluent that is connected between the arrival end of this waste pipe and described waste gas recirculation airway.
Preferably, described electromotor includes intake-air throttle valve, and this intake-air throttle valve is formed with the exhaust gas entrance of the port of export being connected to described waste gas recirculation airway.
Preferably, described intake-air throttle valve is formed with the gaseous mixture body cavity connected with exhaust gas entrance, and the port of export of described waste gas recirculation airway is inserted in this gaseous mixture body cavity.
Preferably, described intake-air throttle valve is provided with the fresh air inlet connected with described gaseous mixture body cavity.
Preferably, this fresh air inlet is provided with regulating the throttle plate of aperture.
Preferably, described intake-air throttle valve is formed with the mixed gas outlet connected with described gaseous mixture body cavity, and this mixed gas outlet is connected to the inlet manifold of described electromotor.
Pass through technique scheme, by forming multiple venthole on the tube wall of the port of export of waste gas recirculation airway, the air-flow towards multiple directions injection can be formed by venthole, the fresh air that waste gas is easier to surrounding is mixed, obtain the mixing gas being more uniformly distributed, be conducive to the combustion reaction in engine cylinder-body, it is to avoid electromotor generation pinking, improve traffic safety.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is the structural representation of the electromotor according to a kind of detailed description of the invention of the present utility model.
Fig. 2 is the structural representation of the waste gas recirculation airway according to a kind of detailed description of the invention of the present utility model.
Fig. 3 is the structural representation of the waste gas recirculation airway according to a kind of detailed description of the invention of the present utility model and intake-air throttle valve.
Description of reference numerals
1 waste gas recirculation airway 2 gaseous effluent
3 inlet manifold 4 intake-air throttle valve
11 venthole 41 exhaust gas entrances
42 gaseous mixture body cavity 43 fresh air inlet
44 mixed gas outlets
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
This utility model provides a kind of waste gas recirculation airway, wherein, the tube wall of the port of export of this waste gas recirculation airway 1 is formed with multiple venthole 11, to form the air-flow towards multi-direction injection.
Waste gas recirculation airway, for the portion after engine combustion is led back to inlet manifold, is again introduced in cylinder and participates in burning after mixing with fresh air.In traditional waste gas recirculation airway, owing to only discharging waste gas by exporting, the injection direction of waste gas is single, and the air-flow of formation is also comparatively single, is not therefore abundant especially with ozone mixability.In structure of the present utility model, the waste gas that waste gas recirculation airway 1 is led via venthole 11 to multiple different direction injections, can form increasingly complex air-flow, it is possible to mix with fresh air more fully, it is to avoid electromotor generation phenomenon of detonation.
Specifically, venthole 11 is uniformly distributed along the circumference of waste gas recirculation airway 1.As shown in Figure 2, venthole 11 can be formed as circular port (square, star or other shapes) and be evenly distributed on the outer wall of waste gas recirculation airway 1, the air-flow that injection is formed is made comparatively to be evenly distributed in accommodation space (in the gaseous mixture body cavity of the intake-air throttle valve of such as the following stated), such that it is able to make waste gas more uniformly mix with fresh air.
It addition, waste gas recirculation airway 1 is many pipe segment structures, connected by bend pipe transition between adjacent pipeline section.Waste gas recirculation airway 1 is generally made up of metal material, and rigidity is relatively big, and the space layout according to engine environment, it is necessary to be bent around multiple obstacle therefore, it can be formed as many pipe segment structures, is namely realized the bending of necessity by the mode of straight tube Yu bend pipe structure.Bend pipe can make to be formed between adjacent straight tube relatively smoothly transition, reduces the resistance of gas flowing.Certainly, waste gas recirculation airway 1 can also be made by other resistant to elevated temperatures materials, for instance asbestos or organic high molecular polymer etc..
It addition, this utility model additionally provides a kind of electromotor, wherein, this electromotor includes the waste gas recirculation airway 1 according to any one in above scheme, and this waste gas recirculation airway 1 is installed between described waste pipe and inlet manifold 3.Wherein, mixing gas enters in different engine cylinder-bodies via inlet manifold 3, participates in combustion reaction.
It addition, described electromotor includes the gaseous effluent 2 being connected between the arrival end of this waste pipe and waste gas recirculation airway 1.At higher combustion temperatures, the burning in engine cylinder-body is more readily formed nitrogen oxides, after discharge, the pollution of environment is bigger, it is therefore desirable to suitably reduce the ignition temperature in engine cylinder-body.By gaseous effluent 2, the cooling effect of waste pipe discharge waste gas can be reduced the temperature of waste gas, when the waste gas after cooling is finally returned in engine cylinder-body via waste gas recirculation airway 1, the temperature in engine cylinder body can be reduced to a certain extent, thus reducing the formation of nitrogen oxides, reduce the pollution to environment.
Additionally, as it is shown in figure 1, described electromotor includes intake-air throttle valve 4, this intake-air throttle valve 4 is formed with the exhaust gas entrance 41 of the port of export being connected to described waste gas recirculation airway 1.The waste gas of waste gas recirculation airway 1 transmission can not be introduced directly into inlet manifold 3, and can waste gas and fresh air be sufficiently mixed by intake-air throttle valve 4, then imports inlet manifold 3 again, will be detailed below.
Specifically, as it is shown on figure 3, intake-air throttle valve 4 is formed with the gaseous mixture body cavity 42 connected with exhaust gas entrance 41, the port of export of described waste gas recirculation airway 1 is inserted in this gaseous mixture body cavity 42.Waste gas can mix with fresh air in ground gaseous mixture body cavity 42, the port of export of waste gas recirculation airway 1 should be inserted into the inside of gaseous mixture body cavity 42, ensure that venthole 11 may be located in this gaseous mixture body cavity 42, it is to avoid venthole 11 is blocked by the housing of intake-air throttle valve 4.
Further, correspondingly, intake-air throttle valve 4 is provided with the fresh air inlet 43 connected with gaseous mixture body cavity 42.FAI Fresh Air Intake device 43 can import fresh air, and fresh air mixes with waste gas in gaseous mixture body cavity 42, as it has been described above, venthole 11 can towards multiple directions jet-stream wind, such that it is able to be sufficiently mixed with fresh air.
It addition, this fresh air inlet 43 is provided with regulating the throttle plate of aperture.Throttle plate can be rotatably set in fresh air inlet 43, can be regulated the aperture of this fresh air inlet 43 by rotary barrel throttle plate, thus regulating the amount of the fresh air entered in gaseous mixture body cavity 42, or closes fresh air inlet 43.
It addition, intake-air throttle valve 4 is formed with the mixed gas outlet 44 connected with gaseous mixture body cavity 42, mixed gas outlet 44 is connected to the inlet manifold 3 of electromotor.Gaseous mixture body cavity 42 mixes sufficient gas and passes into inlet manifold 3 via mixed gas outlet 44, and each cylinder body of access to engine further participates in combustion reaction.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a waste gas recirculation airway, it is characterised in that be formed with multiple venthole (11) on the tube wall of the port of export of this waste gas recirculation airway (1), to form the air-flow towards multi-direction injection.
2. waste gas recirculation airway according to claim 1, it is characterised in that described venthole (11) is uniformly distributed along the circumference of described waste gas recirculation airway (1).
3. waste gas recirculation airway according to claim 1, it is characterised in that described waste gas recirculation airway (1) is many pipe segment structures, is connected by bend pipe transition between adjacent pipeline section.
4. an electromotor, it is characterized in that, this electromotor includes waste gas recirculation airway (1) according to any one in claim 1-3, and this waste gas recirculation airway (1) is installed between described waste pipe and inlet manifold (3).
5. electromotor according to claim 4, it is characterised in that described electromotor includes the gaseous effluent (2) being connected between the arrival end of this waste pipe and described waste gas recirculation airway (1).
6. electromotor according to claim 4, it is characterized in that, described electromotor includes intake-air throttle valve (4), and this intake-air throttle valve (4) is formed with the exhaust gas entrance (41) of the port of export being connected to described waste gas recirculation airway (1).
7. electromotor according to claim 6, it is characterized in that, described intake-air throttle valve (4) is formed with the gaseous mixture body cavity (42) connected with exhaust gas entrance (41), and the port of export of described waste gas recirculation airway (1) is inserted in this gaseous mixture body cavity (42).
8. electromotor according to claim 7, it is characterised in that described intake-air throttle valve (4) is provided with the fresh air inlet (43) connected with described gaseous mixture body cavity (42).
9. electromotor according to claim 8, it is characterised in that be provided with regulating the throttle plate of aperture in this fresh air inlet (43).
10. electromotor according to claim 7, it is characterized in that, described intake-air throttle valve (4) is formed with the mixed gas outlet (44) connected with described gaseous mixture body cavity (42), and this mixed gas outlet (44) is connected to the inlet manifold (3) of described electromotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620121171.4U CN205383011U (en) | 2016-02-15 | 2016-02-15 | Exhaust gas recirculation air duct and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620121171.4U CN205383011U (en) | 2016-02-15 | 2016-02-15 | Exhaust gas recirculation air duct and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383011U true CN205383011U (en) | 2016-07-13 |
Family
ID=56349735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620121171.4U Expired - Fee Related CN205383011U (en) | 2016-02-15 | 2016-02-15 | Exhaust gas recirculation air duct and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869110A (en) * | 2018-06-29 | 2018-11-23 | 重庆长安汽车股份有限公司 | A kind of EGR conduit structure being cooperatively connected with plastic air intake manifold |
| CN114215665A (en) * | 2021-11-02 | 2022-03-22 | 浙江吉利控股集团有限公司 | Waste gas intake pipe and waste gas recirculation system |
-
2016
- 2016-02-15 CN CN201620121171.4U patent/CN205383011U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869110A (en) * | 2018-06-29 | 2018-11-23 | 重庆长安汽车股份有限公司 | A kind of EGR conduit structure being cooperatively connected with plastic air intake manifold |
| CN114215665A (en) * | 2021-11-02 | 2022-03-22 | 浙江吉利控股集团有限公司 | Waste gas intake pipe and waste gas recirculation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202300717U (en) | EGR (Exhaust Gas Recirculation) mixer for highly turbocharged engine system | |
| CN105003361A (en) | Integrated EGR (exhaust gas recirculation) mixer | |
| CN105464847B (en) | A kind of egr system suitable for dual fuel engine | |
| CN102182586A (en) | ERG (exhaust gas recirculation) mixer | |
| CN205383011U (en) | Exhaust gas recirculation air duct and engine | |
| CN108397311A (en) | A kind of gas engine air inlet mixing chamber | |
| CN207437238U (en) | A kind of high Tumble and swirl inlet structure | |
| CN205532931U (en) | EGR system suitable for dual -fuel engine | |
| CN102425507B (en) | Exhaust gas circulation (EGR) based hybrid stratified charge system and method of gasoline engine | |
| CN109488490A (en) | A kind of engine exhaust-gas recirculating system mixed structure | |
| JPH11210563A (en) | Exhaust gas recirculation system for engine | |
| CN105114160B (en) | Catalytic convention design and its waste gas air blender | |
| CN204299724U (en) | A kind of marine engine LNG/ diesel dual-fuel blender | |
| CN204783340U (en) | Integrated EGR blender | |
| CN202402177U (en) | Gas mixer | |
| CN102425508A (en) | Exhaust gas circulation (EGR) based hybrid charge system and method of gasoline engine | |
| CN202228228U (en) | Air inlet pipe of engine | |
| CN205064129U (en) | EGR air intake system | |
| CN220287506U (en) | Dual-fuel air premixing nozzle | |
| CN214944620U (en) | Diesel engine mixed air inlet system | |
| CN204532605U (en) | Gasoline engine inlet-air pre-mixing apparatus | |
| CN203285551U (en) | Compression ignition engine homogeneous combustion control system for quantitatively controlling combustion temperature in cylinder | |
| CN204283664U (en) | EGR adapter, engine EGR system and vehicle | |
| CN202645790U (en) | Air intake mechanism for high-power gas engine | |
| CN210264975U (en) | Diesel engine intake manifold meeting light national five-emission requirements |
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: 20160713 Termination date: 20220215 |