CN105888890A - Exhaust gas recirculation (EGR) system - Google Patents
Exhaust gas recirculation (EGR) system Download PDFInfo
- Publication number
- CN105888890A CN105888890A CN201610240511.XA CN201610240511A CN105888890A CN 105888890 A CN105888890 A CN 105888890A CN 201610240511 A CN201610240511 A CN 201610240511A CN 105888890 A CN105888890 A CN 105888890A
- Authority
- CN
- China
- Prior art keywords
- egr
- exhaust gas
- filter
- aerating device
- supercharger
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 230000006698 induction Effects 0.000 claims description 8
- 230000037361 pathway Effects 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 description 7
- 239000013618 particulate matter Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Abstract
An exhaust gas recirculation (EGR) system is disclosed. The system includes an exhaust gas recirculation (EGR) path (101) and an exhaust gas recirculation (EGR) valve (106) in the exhaust gas recirculation (EGR) path (101). An exhaust gas recirculation (EGR) path (101) is in fluid communication with an intake path (103). An inflator (102) is arranged along the intake path of an engine (104) and is adapted to receive the engine exhaust via the EGR valve (106) and the atmospheric air as inputs. The system is characterized by having a filter (108) located between the inlets of the EGR valve (106) and the inflator (102).
Description
Technical field
The present invention relates to the field of exhaust gas recirculatioon (EGR) system.
Background technology
Supercharger is used for improving power produced by electromotor.Compressor is used in supercharger improving quilt
It is supplied to pressure or the density of the air of electromotor.Supercharger passes through belt-type or chain drives by electromotor
Bent axle mechanically drives.In order to improve the performance of supercharger, need to allow supercharger to have in addition to ambient atmospheric air
Additional input source.Other air source that supercharger can obtain are the aerofluxuss from electromotor.But, come
Can not be used directly from the aerofluxus of electromotor, because the impurity contained in aerofluxus can cause intensifier component
Damage.Therefore, before air and/or aerofluxus enter supercharger, a kind of purification mechanism is also needed to.
Prior art patent application US6301887 discloses the low pressure EGR being suitably used as passive modifying system
System, this low pressure EGR system is disclosed for driving the automobile being equipped with Diesel engine.EGR circuit
Entrance is positioned at the upstream of exhaust gas particulate filter and in the downstream of turbine, thus utilizes exhaust particulate to filter
EGR flow during back pressure ensures loop produced by device.The catalysis soot filtration being connected with EGR device
Device guarantees the cleaning EGR gas at the EGR backflow of air filter downstream and upstream of compressor.EGR
Corrugated tube provides the cooling of EGR gas.
Accompanying drawing explanation
The different mode of the present invention is described in detail in the description and is illustrated in the accompanying drawings.
Fig. 1 shows exhaust gas recycling system.
Detailed description of the invention
Fig. 1 shows exhaust gas recirculatioon (EGR) system 100.Exhaust gas recycling system disclosed herein
100 at least have with lower component, exhaust gas recirculatioon (EGR) path (101) and at exhaust gas recirculatioon (EGR)
Exhaust gas recirculatioon (EGR) valve (106) in path (101), EGR path (101) and induction pathway
(103) fluid communication.Aerating device (102) is arranged along the induction pathway (103) of electromotor (104),
And it is suitable for being received from EGR path via the EGR gas of EGR valve (106) and fresh air as defeated
Enter.The system is characterized in that there is filter (108), this filter be arranged on EGR valve (106) and
Between induction pathway (103), it is positioned at aerating device (102) upstream.Egr system uses electromotor (104)
The part of aerofluxus and fresh air as input.Identical aerofluxus and the mixture of fresh air are used as
It is fed to the charging of electromotor (104).Electromotor (104) has the increase corresponding to available charging now
And use additional fuel as the ability of input.This causes the power of each useful stroke of electromotor (104)
Output increases.
Aerating device (102) as a part for egr system receives from two sources, a) fresh sky
The input of gas and b) aerofluxus.Aerating device (102) sets along the induction pathway (103) of exhaust gas recycling system
Put and be suitable for being received from EGR path via the EGR gas of EGR valve (106) and fresh air conduct
Input.The aerofluxus returned from electromotor (104) is by the impurity containing trace, particulate matter, carbon granule etc..
Above-mentioned impurity in aerofluxus needs mixed with surrounding air can be incorporated as filler in aerofluxus and is sent back to electromotor
It was removed before 104.Impurity in aerofluxus and particulate matter may be deposited on the initiative part of aerating device (102)
On part, such as rotor.The deposition of impurity not only reduces the efficiency of aerating device (102), and decreases
The life-span of aerating device (102).Therefore, making the impurity in the aerofluxus of recirculation not arrive aerating device is weight
Want.In order to realize this target, filter (108) is arranged on EGR valve (106) and aerating device (102)
Between the induction pathway of upstream.In an embodiment, filter (108) can be integrally formed with aerating device.Fill
Device of air 102 can be supercharger.Filter 108 may be provided on the entrance of supercharger.Supercharger can be used
In single-cylinder engine or multicylinder engine.The above-mentioned configuration with filter 108 and aerating device 102 makes
Low pressure EGR is possibly realized, because aerating device is protected from particulate matter due to the existence of filter 108
Infringement.Low pressure EGR contributes to realizing higher EGR flow and lower EGR temperature.
Filter 108 can be to be cancellated form.Filter 108 prevents any particulate matter or impurity from arriving
Reach aerating device 102.The characteristic of filter be more preferable exhaust particulate filter efficiency, temperature stability and
Ensure to arrive the more preferable pressure stability of the aerofluxus of aerating device 102.Filter 108 also can be removably
It is attached on supercharger.This makes, and no matter when filter 108 is becoming blocking, filter 108 energy
It is replaced regularly.Alternatively, filter 108 can also be cleaned and change in low-pressure EGR loop.
It should be understood that the embodiment illustrated in specification above is exemplary and about filter type
For filter position on exhaust stream path and supercharger, do not limit the scope of the invention.A lot of this
Other changes and change in the embodiment of sample and embodiment described in this description are expected.The present invention
Scope only limited by the scope of claim.
Claims (8)
1. an exhaust gas recirculatioon (EGR) system (100), including:
Exhaust gas recirculatioon (EGR) path (101) and in described exhaust gas recirculatioon (EGR) path (101)
In exhaust gas recirculatioon (EGR) valve (106), described exhaust gas recirculatioon (EGR) path (101) with enter
Gas circuit footpath (103) is in fluid communication；
Aerating device (102), its along electromotor (104) induction pathway position and be suitable to receive from
The EGR gas of described EGR path and fresh air are as input；
Described system is characterized by:
Filter (108), it is positioned on described EGR valve (106) and described aerating device (102)
Between the induction pathway of trip.
System the most according to claim 1, wherein said aerating device (102) is supercharger.
System the most according to claim 2, wherein said supercharger is used for single-cylinder engine.
System the most according to claim 2, wherein said supercharger is used for multicylinder engine.
System the most according to claim 2, wherein said filter (108) is positioned at described supercharger
Entrance on.
System the most according to claim 4, wherein said filter (108) is removably attached to
On described supercharger.
7. the aerating device (102) in exhaust gas recycling system,
Described aerating device (102) positions along the induction pathway of described exhaust gas recycling system and is suitable to connect
Receive the engine exhaust via EGR valve (106) and fresh air as input；The feature of described device exists
In having:
Filter (108), it is positioned at described EGR valve (106) and described aerating device (102)
Between entrance.
Aerating device the most according to claim 7 (102), wherein said filter and described inflation dress
Put integrated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN361/CHE/2015 | 2015-01-23 | ||
| IN361CH2015 | 2015-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888890A true CN105888890A (en) | 2016-08-24 |
Family
ID=56705023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610240511.XA Pending CN105888890A (en) | 2015-01-23 | 2016-01-22 | Exhaust gas recirculation (EGR) system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888890A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372659A (en) * | 2018-10-26 | 2019-02-22 | 江苏中远环保科技有限公司 | A kind of energy-saving environmental protection device in control loop cooler |
-
2016
- 2016-01-22 CN CN201610240511.XA patent/CN105888890A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372659A (en) * | 2018-10-26 | 2019-02-22 | 江苏中远环保科技有限公司 | A kind of energy-saving environmental protection device in control loop cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |