CN203420799U - Engine EGR pipe - Google Patents
Engine EGR pipe Download PDFInfo
- Publication number
- CN203420799U CN203420799U CN201320382569.XU CN201320382569U CN203420799U CN 203420799 U CN203420799 U CN 203420799U CN 201320382569 U CN201320382569 U CN 201320382569U CN 203420799 U CN203420799 U CN 203420799U
- Authority
- CN
- China
- Prior art keywords
- egr
- intake manifold
- exhaust gas
- upper plenum
- gas recirculation
- 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 - Lifetime
Links
- 239000007789 gas Substances 0.000 claims abstract description 19
- 239000002912 waste gas Substances 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model relates to an engine EGR pipe which comprises a pipe body. A partition board which divides a pipe inner cavity into an upper cavity and a lower cavity is arranged inside the pipe body and a set of air holes is formed in the partition board. The lower cavity is connected with an EGR waste gas inlet end and a gas outlet is formed in the upper cavity. The engine EGR pipe can provide needed EGR waste gas for each air inlet manifold according to the demands for EGR waste gas of each air inlet manifold, is simple in structure and convenient to adjust, and can be widely applied to the field of EGR pipelines.
Description
Technical field
The utility model relates to a kind of engine exhaust gas recirculation EGR tube.
Background technique
Along with the environmental problem swift and violent increase of sternness and automobile pollution increasingly, stricter for the relevant laws and regulations of automotive energy-saving emission-reducing.Petrol engine, by introducing external exhaust gas recirculation EGR, can effectively reduce pumping loss, reduces the original discharge of NOx.Due to the restriction of this body structure of motor and space outerpace structure, the EGR amount that simultaneously guarantee to introduce each cylinder all even overall higher EGR to lead be more difficult.As Chinese Patent Application No. 201220030557.6 discloses a kind of engine EGR air inlet distribution plate, comprise distribution plate upper plate and distribution plate lower plate that shape is identical, distribution plate upper plate and distribution plate lower plate joint place are provided with EGR and distribute air flue, EGR distributes air flue to be communicated with engine charge hole and distribution plate EGR air outlet on distribution plate, EGR gas is by distributing air flue to carry out EGR to each cylinder, thereby cancelled the EGR line arrangement of air inlet side, reduced annex arrangement space, adopt the form of cylinder cap air inlet EGR distribution plate to carry out EGR, be conducive to intake manifold heat insulation, prevent intake manifold temperature distortion.But this model utility can not be adjusted according to the actual demand of each cylinder the EGR gas inlet amount of each cylinder.
Model utility content
The purpose of this utility model is to provide a kind of engine exhaust gas recirculation EGR tube, solves available engine EGR EGR pipe and can not require to adjust according to each cylinder air inlet the problem of EGR exhaust gas flow size.
The utility model solves the technological scheme that its technical problem adopts: a kind of engine exhaust gas recirculation EGR tube, comprise pipeline body, in pipeline body, be provided with the dividing plate that inner cavity of pipe is separated into upper plenum and lower cavity, on dividing plate, be provided with one group of pore; Described lower cavity is connected with EGR gas inlet end, is provided with air outlet on upper plenum.
Preferably, each intake manifold of the air outlet of described upper plenum and motor is connected.
Further, on described upper plenum, be provided with the arm of one group of each intake manifold of connecting engine.
For meeting the requirement of various inlet manifold to EGR waste gas demand, on described dividing plate, the EGR waste gas demand of the quantity of pore, size and position and each intake manifold of motor is suitable.
For further improving the validity that enters EGR waste gas in each intake manifold, in described upper chamber, between adjacent two air outlets, be provided with riser.
The beneficial effects of the utility model: if the dividing plate with pore is set on pipeline body, conveniently on dividing plate, different positions arranges pore as required, and the quantity of pore and size also can be adjusted according to the requirement of each intake manifold, meet the requirement of various inlet manifold, and simple in structure, take up room little.Pipeline body is directly connected with intake manifold by arm, compact structure, and the EGR waste gas that can guarantee to be assigned in each intake manifold can enter intake manifold separately completely.Described riser can further improve the validity that enters EGR waste gas in each intake manifold.
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the utility model assembling schematic diagram.
Fig. 2 is the plan view of dividing plate.
Fig. 3 is the sectional view of pipeline body.
Embodiment
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of engine exhaust gas recirculation EGR tube, comprises pipeline body 1, is provided with dividing plate 2 in pipeline body 1, and described dividing plate 2 is separated into upper plenum 4 and lower cavity 5 two-part by inner cavity of pipe, is provided with one group of pore 3 on described dividing plate 2; Described lower cavity 5 is connected with EGR gas inlet end, on upper plenum 4, is provided with air outlet.The air outlet of described upper plenum 4 is connected by one group of each intake manifold 8 of arm 6 and motor.EGR waste gas enters cavity 5 from EGR exhaust gas inlet, by the pore 3 on dividing plate 2, enters upper plenum 4, then is entered in intake manifold 8 separately by arm 6.
On described dividing plate 2, quantity, size and the position of pore 3 can be determined according to the EGR waste gas demand of each intake manifold 8 of motor, thereby guarantee the demand of 8 pairs of EGR waste gas of variant intake manifold, simple in structure, easy to adjust.
Embodiment 2:
As shown in Figures 1 to 3, described pipeline body is provided with riser 7 between 1 interior adjacent two air outlets of upper chamber 4, riser 7 is divided into one group of separate cavity by upper chamber, the EGR waste gas entering in upper plenum 4 by pore 3 is not interfere with each other, the more convenient control to each intake manifold 8EGR exhausted air quantity.Other are with embodiment 1.
Claims (5)
1. an engine exhaust gas recirculation EGR tube, comprise pipeline body (1), it is characterized in that: in pipeline body (1), be provided with the dividing plate (2) that inner cavity of pipe is separated into upper plenum (4) and lower cavity (5), on dividing plate (2), be provided with one group of pore (3); Described lower cavity (5) is connected with EGR gas inlet end, and upper plenum is provided with air outlet on (4).
2. engine exhaust gas recirculation EGR tube as claimed in claim 1, is characterized in that: each intake manifold of air outlet and motor (8) of described upper plenum (4) is connected.
3. engine exhaust gas recirculation EGR tube as claimed in claim 2, is characterized in that: the arm (6) that is provided with one group of each intake manifold of connecting engine (8) on described upper plenum (4).
4. the engine exhaust gas recirculation EGR tube as described in claims 1 to 3 any one, is characterized in that: described dividing plate (2) upper quantity, size and the position of pore (3) and the EGR waste gas demand of each intake manifold of motor (8) are suitable.
5. engine exhaust gas recirculation EGR tube as claimed in claim 4, is characterized in that: in described upper plenum (4), between adjacent two air outlets, be provided with riser (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382569.XU CN203420799U (en) | 2013-06-28 | 2013-06-28 | Engine EGR pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382569.XU CN203420799U (en) | 2013-06-28 | 2013-06-28 | Engine EGR pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420799U true CN203420799U (en) | 2014-02-05 |
Family
ID=50019898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320382569.XU Expired - Lifetime CN203420799U (en) | 2013-06-28 | 2013-06-28 | Engine EGR pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420799U (en) |
-
2013
- 2013-06-28 CN CN201320382569.XU patent/CN203420799U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202789203U (en) | Connecting pipe and exhaust gas recirculation (EGR) system using the same | |
| CN203476553U (en) | Air inlet manifold structure | |
| CN204060889U (en) | Engine exhaust manifold assembly | |
| CN204572192U (en) | A kind of gas-fueled vehicles | |
| CN203420799U (en) | Engine EGR pipe | |
| CN102536547A (en) | Engine intake manifold with exhaust gas recirculation (EGR) exhaust gas distribution structure | |
| CN203362286U (en) | Exhaust manifold shell structure capable of facilitating welding | |
| CN202203013U (en) | Common rail pipe of gas engine | |
| CN203081624U (en) | Novel-structure four-air-channel plastic intake manifold | |
| CN205423002U (en) | Novel car air supply device | |
| CN205591994U (en) | Automatically controlled diesel engine exhaust manifold | |
| CN203362292U (en) | Exhaust manifold convenient to install heat shield | |
| CN204755047U (en) | EGR structure of integrated form exhaust manifold assembly and engine | |
| CN203050938U (en) | Diesel engine air inlet connection pipe | |
| CN204900122U (en) | Intake pipe | |
| CN103742303B (en) | A kind of EGR channel structure and egr system | |
| CN206513427U (en) | A kind of micro- resistance pipeline fork | |
| CN203223314U (en) | Combination of air filter and idling gulp valve | |
| CN205047326U (en) | A pipe fitting for EGR system | |
| CN203222074U (en) | Installation structure of idling gulp valve on air filter | |
| CN204755138U (en) | Cold junction constructs in engine pressure boost | |
| CN203223320U (en) | Engine air inlet pipe | |
| CN103603754B (en) | A kind of grouping cavate air inlet device altogether | |
| CN201802521U (en) | Gas distribution device of internal combustion engine air inlet system | |
| CN203383943U (en) | Light engine intake pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |