CN103742303B - A kind of EGR channel structure and egr system - Google Patents
A kind of EGR channel structure and egr system Download PDFInfo
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- CN103742303B CN103742303B CN201410038401.6A CN201410038401A CN103742303B CN 103742303 B CN103742303 B CN 103742303B CN 201410038401 A CN201410038401 A CN 201410038401A CN 103742303 B CN103742303 B CN 103742303B
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- cover plate
- cavity
- channel structure
- groove
- upper cover
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- 239000002912 waste gas Substances 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 41
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 238000004512 die casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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 invention provides a kind of EGR channel structure and egr system, the inside of described EGR channel structure forms the first cavity and second cavity of vertically arrangement, is communicated with between the first cavity with the second cavity, one end of vicinity first cavity of described EGR channel structure is connected with engine cylinder cover, the inside of described EGR channel structure is also provided with gas-entered passageway, gas-entered passageway respectively with the second cavity be arranged at the inblock cylinder air flue that engine cylinder covers and be connected, the inlet cylinder that first cavity and engine cylinder cover is connected, the second cavity is entered through gas-entered passageway to make the waste gas of discharging in inblock cylinder air flue, inlet cylinder is entered again through the first cavity, this EGR channel is simple and compact for structure, volume is little, lightweight, cost is low, and EGR channel vibrational power flow covers in engine cylinder, not by the restriction of space layout, gas inlet is reasonable, arrange, easy to use.
Description
Technical field
The present invention relates to technical field of automobile engine, particularly relate to a kind of EGR channel structure and egr system.
Background technique
Along with international community is to the pay attention to day by day of environmental protection and using energy source, vehicular engine Abgasgesetz day is tight increasingly.Therefore, adopt advanced engine technology, reduce discharge and CO
2discharge becomes the important means of each automobile, internal-combustion engine manufacturer.Wherein EGR (ExhaustGasRecirculation, EGR) technology, has become a kind of effective means reducing discharge and oil consumption and has been used widely.
Automobile-used egr system structure, mainly comprises exhaust steam passage, EGR control valve and waste gas cooling channel, and exhaust steam passage is mainly for delivery of waste gas, and existing exhaust steam passage adopts following two kinds of modes to realize usually, the object reduce discharge to reach, improving burning.
Mode 1: waste gas is introduced intake manifold by complicated pipe-line system;
Mode 2: cast tube road in intake manifold, waste gas is introduced performance, and pipeline is connected with total intake manifold, then is delivered in each performance by waste gas by total intake manifold.
Pipe-line system complex structure in above-mentioned two kinds of modes, manufacture cost is higher, and because space is arranged often restricted, gas inlet position is difficult to accomplish most suitable.
Therefore, a kind of EGR channel structure and egr system is needed badly in order to solve the problems of the technologies described above.
Summary of the invention
The present invention is directed to above shortcomings in prior art, a kind of EGR channel structure and egr system are provided, in order to solve pipe-line system complex structure, awkward problem.
The present invention, for solving the problems of the technologies described above, adopts following technological scheme:
The invention provides a kind of EGR channel structure, the inside of described EGR channel structure forms the first cavity and second cavity of vertically arrangement, is communicated with between the first cavity with the second cavity;
One end of vicinity first cavity of described EGR channel structure is connected with engine cylinder cover;
The inside of described EGR channel structure is also provided with gas-entered passageway, gas-entered passageway respectively with the second cavity be arranged at the inblock cylinder air flue that engine cylinder covers and be connected, the inlet cylinder that first cavity and engine cylinder cover is connected, to make the waste gas of discharging in inblock cylinder air flue enter the second cavity through gas-entered passageway, then enter inlet cylinder through the first cavity.
Preferably, the first cavity is connected by air outlet hole with inlet cylinder, and described air outlet hole is two or more, two or more described air outlet hole respectively be arranged at each inlet cylinder that described engine cylinder covers and be connected.
Preferably, described EGR channel structure comprises: lower cover plate, lower cover plate pad, upper cover plate and upper cover plate pad, and lower cover plate, lower cover plate pad, upper cover plate and upper cover plate pad are linked in sequence from top to bottom;
Lower cover plate is provided with the second groove of the first groove and long strip, the first groove is communicated with the second groove, and the position that lower cover plate pad is corresponding with the first groove is provided with the first through hole; Second groove fit of lower cover plate pad and lower cover plate forms described second cavity;
Upper cover plate is provided with the 3rd groove of the second through hole and long strip, the position of the second through hole is corresponding with the position of the first through hole and the first groove, the position of the 3rd groove is corresponding with the position of the second groove, and the 3rd groove coordinates formation first cavity with lower cover plate pad;
Lower cover plate pad is also provided with the first pore, and the first cavity is communicated with by the first pore with the second cavity;
EGR channel structure is connected by upper cover plate pad with engine cylinder cover, and described two or more air outlet hole is arranged on upper cover plate pad, and the upper cover plate pad position corresponding with the second through hole is provided with third through-hole; When lower cover plate, lower cover plate pad, upper cover plate and upper cover plate pad are linked in sequence from top to bottom, third through-hole, the second through hole and the first through hole form described gas-entered passageway, and described gas-entered passageway is connected with the second cavity by the first groove.
Preferably, described two or more air outlet hole is uniformly distributed on described upper cover plate pad.
Preferably, the bottom of the 3rd groove on described upper cover plate is provided with two or more the second pores, and described second pore runs through described upper cover plate, and the position of the second pore is corresponding with the position of the air outlet hole on upper cover plate pad.
Preferably, described engine cylinder covers the 3rd pore being provided with and being connected with described each inlet cylinder, and described air outlet hole is connected with the 3rd pore, and the first cavity is connected with the 3rd pore by described air outlet hole, the second pore with inlet cylinder.
The present invention also provides a kind of egr system, comprising: motor and foregoing EGR channel structure, described EGR channel vibrational power flow is on the cylinder cap of described motor.
A kind of EGR channel structure provided by the invention and egr system, by forming the first cavity and second cavity of vertically arrangement in the inside of EGR channel structure, be communicated with between first cavity with the second cavity, and the inside of EGR channel structure is provided with gas-entered passageway, in order to respectively with the second cavity be arranged at the inblock cylinder air flue that engine cylinder covers and be connected, the inlet cylinder that first cavity and engine cylinder cover is connected, the second cavity is entered through gas-entered passageway to make the waste gas of discharging in inblock cylinder air flue, inlet cylinder is entered again through the first cavity, this EGR channel is simple and compact for structure, volume is little, lightweight, cost is low, and EGR channel vibrational power flow covers in engine cylinder, not by the restriction of space layout, gas inlet is reasonable, arrange, easy to use.
Accompanying drawing explanation
Each constituent element of EGR channel structure that Fig. 1 provides for the embodiment of the present invention disassemble schematic diagram;
The structural representation of lower cover plate in the EGR channel structure that Fig. 2 provides for the embodiment of the present invention;
The plan view of the EGR channel structure that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is A-A cross-sectional view in Fig. 3;
Fig. 5 is the schematic enlarged-scale view of C part in Fig. 4;
Fig. 6 is the schematic enlarged-scale view of part B in Fig. 4.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, carry out clear, complete description to the technological scheme in the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, belongs to the scope of protection of the invention.
Below in conjunction with accompanying drawing, the EGR channel structure that the embodiment of the present invention provides is described in detail.
The embodiment of the present invention provides a kind of EGR channel structure, and the inside of this EGR channel structure forms the first cavity and second cavity of vertically arrangement, is communicated with between the first cavity with the second cavity.One end of vicinity first cavity of EGR channel structure is connected with engine cylinder cover.The inside of this EGR channel structure is also provided with gas-entered passageway, gas-entered passageway respectively with the second cavity be arranged at the inblock cylinder air flue that engine cylinder covers and be connected, the inlet cylinder that first cavity and engine cylinder cover is connected, to make the waste gas of discharging in inblock cylinder air flue enter the second cavity through gas-entered passageway, then enter inlet cylinder through the first cavity.
By being covered in engine cylinder by this EGR channel vibrational power flow, relatively existing pipe-line system and pipeline, can not be subject to the restriction of space layout on the one hand, easy to use; On the other hand, waste gas directly can enter EGR channel structure from engine cylinder cover, and air inlet is more reasonable.This EGR channel structure adopts cavity structure, has that structure is simple, volume is little, lightweight, low cost and other advantages.
Preferably, first cavity can be connected by air outlet hole with inlet cylinder, air outlet hole is two or more, two or more air outlet hole respectively be arranged at each inlet cylinder that engine cylinder covers and be connected, thus the waste gas in EGR channel structure is delivered in each cylinder respectively, the discharge of engine exhaust and Economy are not fully exerted.
This EGR channel structure can be realized by various structures, in embodiments of the present invention, adopt the structure of cover plate and pad to realize, the EGR channel structure below in conjunction with Fig. 1,2,3,4 pairs of embodiment of the present invention is described in detail, and the arrow wherein in accompanying drawing represents the direction of exhaust-gas flow.
As shown in Figure 1, EGR channel structure comprises: lower cover plate 1, lower cover plate pad 2, upper cover plate 3 and upper cover plate pad 4, and lower cover plate 1, lower cover plate pad 2, upper cover plate 3 and upper cover plate pad 4 are linked in sequence from top to bottom and are integrated.Preferably, by fixing bolt 7, lower cover plate 1, lower cover plate pad 2, upper cover plate 3 can be fixedly connected with upper cover plate pad 4.
Shown in composition graphs 2, lower cover plate 1, in lid, lower cover plate 1 is provided with the first groove 11 and the second groove 12, first groove 11 and the second groove 12 are the inverted U groove that Open Side Down, second groove 12 is elongated, and the axis along lower cover plate 1 is arranged, and the first groove 11 is communicated with the second groove 12.
Second groove 12 of lower cover plate pad 2 on shutoff lower cover plate, position lower cover plate pad 2 being provided with the first through hole 21, first through hole 21 is corresponding with the position of the first groove 11 on lower cover plate 1.
Position upper cover plate 3 being provided with the second through hole 31 and the 3rd groove 32, second through hole 31 is corresponding with the position of the first through hole 21 of lower cover plate pad 2 and the first groove 11 of lower cover plate 1.3rd groove 32 is the U-type groove of opening upwards, and the 3rd groove 32 is elongated, and the axis along upper cover plate 3 is arranged, and the position of the 3rd groove 32 is corresponding with the position of the second groove 12.
Preferably, EGR channel structure can adopt die casting mode to manufacture, and such as, casts out lower cover plate 1 and upper cover plate 3 by die casting, and processing technology is simple, and cost is low.
EGR channel structure is connected by upper cover plate pad 4 with engine cylinder cover 6, described two or more air outlet hole 42 is arranged on upper cover plate pad 4, and upper cover plate pad 4 is provided with third through-hole 41, the position of third through-hole 41 is corresponding with the position of the second through hole 31 of upper cover plate 3, also with the first through hole 21 of lower cover plate pad 2, and the position of the first groove 11 of lower cover plate 1 is corresponding.
Shown in composition graphs 4, after utilizing fixing bolt 7 lower cover plate 1, lower cover plate pad 2, upper cover plate 3 and upper cover plate pad 4 to be sequentially fixedly connected with from top to bottom, lower cover plate pad 2 is arranged at the below of lower cover plate 1, the opening of the first groove 11 of lower cover plate 1 and the second groove 12 can seal by lower cover plate pad 2, thus form the second cavity b, namely lower cover plate pad 2 coordinates formation second cavity b with the first groove 11 and the second groove 12.
Upper cover plate 3 is arranged at the below of lower cover plate pad 2, and the opening of the 3rd groove 32 of upper cover plate 3 can seal by lower cover plate pad 2, thus forms the first cavity c, and namely lower cover plate pad 2 coordinates formation first cavity c with the 3rd groove 32.Lower cover plate pad 2 is also provided with the first pore 22, first cavity c to be communicated with by the first pore 22 with the second cavity b.
Below in conjunction with Fig. 5, the intake duct of EGR channel structure is described in detail.Fig. 5 is the schematic enlarged-scale view of C part in Fig. 4, as shown in Figure 5, after utilizing fixing bolt 7 lower cover plate 1, lower cover plate pad 2, upper cover plate 3 and upper cover plate pad 4 to be sequentially fixedly connected with from top to bottom, third through-hole 41, second through hole 31 and the first through hole 21 form gas-entered passageway 5, and gas-entered passageway 5 is connected with the second cavity b by the first groove 11.Namely one end of gas-entered passageway 5 is communicated with the first groove 11, and then is connected with the second cavity b, and the other end of gas-entered passageway 5 is connected with the inblock cylinder air flue 61 on engine cylinder cover 6, in order to be delivered in EGR channel structure by the waste gas in inblock cylinder air flue 61.
As shown in Figure 2, the first pore 22 is arranged on lower cover plate pad 2, and the first pore 22 is through hole, can be communicated with between the first cavity c with the second cavity b by the first pore 22.First pore 22 can be set to one or more, preferably, is set to multiple.The size of the first pore 22 and determining positions waste gas enters the uniformity of each inlet cylinder, the size of the first pore 22 and position are subject to the impact of fluid characteristics, can determine according to the demand of motor in practice, the model of motor is different, the size of the first pore 22 is different with position, and the size of the first pore 22 and position can utilize fluid software CFD to calculate usually.
See the schematic enlarged-scale view that Fig. 4 and 6, Fig. 6 is part B in Fig. 4, as shown in the figure, EGR channel structure is connected with engine cylinder cover by upper cover plate pad 4, and namely the junction surface of EGR channel structure and engine cylinder cover is upper cover plate pad 4.Upper cover plate pad 4 is provided with air outlet hole 42, air outlet hole 42 is through hole, and its quantity is two or more.Preferably, air outlet hole 42 is uniformly distributed on upper cover plate pad 4.
The bottom of the 3rd groove 32 is provided with the second pore 33, second pore 33 and runs through upper cover plate 3, and the position of the second pore 33 is corresponding with the position of the air outlet hole 42 on upper cover plate pad 4, and the quantity of the second pore 33 is two or more.
Engine cylinder cover 6 is provided with two or more the 3rd pore the 62, three pores 62 to be connected with each inlet cylinder 63.Air outlet hole 42 on upper cover plate pad 4 is connected with the 3rd pore 62 on engine cylinder cover 6, first cavity c is connected with the 3rd pore 62 by air outlet hole 42, second pore 33 with inlet cylinder 63, in order to the waste gas in EGR channel structure is delivered to each inlet cylinder 63.
By the layout of the second pore 33 and air outlet hole 42, solve the homogeneity question that EGR waste gas enters each cylinder exactly, ensure the uniformity of EGR rate, thus the discharge of motor and Economy are not fully exerted, and with low cost.
In the EGR channel structure of the embodiment of the present invention, sealed by metal lower cover plate pad 2 between lower cover plate 1 and upper cover plate 3, sealed by metal upper cover plate pad 4 between upper cover plate 3 and engine cylinder cover 6.By arranging the first through hole 21 on lower cover plate pad 2, upper cover plate 3 arranges the second through hole 31, arrange third through-hole 41 on upper cover plate pad 4, thus form gas-entered passageway 5, and be connected with the inblock cylinder air flue in cylinder head 6, introduce EGR channel structure in order to the waste gas of being discharged by cylinder.
Lower cover plate pad 2 reasonably arranges the first pore 22, the waste gas of the second cavity b entering lower cover plate 1 and lower cover plate pad 2 formation is enable to enter the first cavity c of upper cover plate 3 and upper cover plate pad 4 formation from suitable position, again by the second pore 33, the air outlet hole 42 on upper cover plate pad 4 and the 3rd pore 62 in cylinder head 6 on upper cover plate 3, enter each inlet cylinder respectively, thus complete the recirculation of EGR waste gas.
The embodiment of the present invention also provides a kind of egr system, comprising: motor and foregoing EGR channel structure, described EGR channel vibrational power flow is on the cylinder cap of described motor.
Be understandable that, the illustrative embodiments that above mode of execution is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (6)
1. an EGR channel structure, is characterized in that, the inside of described EGR channel structure forms the first cavity and second cavity of vertically arrangement, is communicated with between the first cavity with the second cavity;
One end of vicinity first cavity of described EGR channel structure is connected with engine cylinder cover;
The inside of described EGR channel structure is also provided with gas-entered passageway, gas-entered passageway respectively with the second cavity be arranged at the inblock cylinder air flue that engine cylinder covers and be connected, the inlet cylinder that first cavity and engine cylinder cover is connected, to make the waste gas of discharging in inblock cylinder air flue enter the second cavity through gas-entered passageway, then enter inlet cylinder through the first cavity;
First cavity is connected by air outlet hole with inlet cylinder, described air outlet hole be arranged at the inlet cylinder that described engine cylinder covers and be connected;
Described EGR channel structure comprises: lower cover plate, lower cover plate pad, upper cover plate and upper cover plate pad, and lower cover plate, lower cover plate pad, upper cover plate and upper cover plate pad are linked in sequence from top to bottom;
Lower cover plate is provided with the second groove of the first groove and long strip, the first groove is communicated with the second groove, and the position that lower cover plate pad is corresponding with the first groove is provided with the first through hole; Second groove fit of lower cover plate pad and lower cover plate forms described second cavity;
Upper cover plate is provided with the 3rd groove of the second through hole and long strip, the position of the second through hole is corresponding with the position of the first through hole and the first groove, the position of the 3rd groove is corresponding with the position of the second groove, and the 3rd groove coordinates formation first cavity with lower cover plate pad;
Lower cover plate pad is also provided with the first pore, and the first cavity is communicated with by the first pore with the second cavity;
EGR channel structure is connected by upper cover plate pad with engine cylinder cover, and described air outlet hole is arranged on upper cover plate pad, and the upper cover plate pad position corresponding with the second through hole is provided with third through-hole; When lower cover plate, lower cover plate pad, upper cover plate and upper cover plate pad are linked in sequence from top to bottom, third through-hole, the second through hole and the first through hole form described gas-entered passageway, and described gas-entered passageway is connected with the second cavity by the first groove.
2. EGR channel structure as claimed in claim 1, it is characterized in that, described air outlet hole is two or more.
3. EGR channel structure as claimed in claim 2, it is characterized in that, described two or more air outlet hole is uniformly distributed on described upper cover plate pad.
4. EGR channel structure as claimed in claim 2, it is characterized in that, the bottom of the 3rd groove on described upper cover plate is provided with two or more the second pores, and described second pore runs through described upper cover plate, and the position of the second pore is corresponding with the position of the air outlet hole on upper cover plate pad.
5. EGR channel structure as claimed in claim 4, it is characterized in that, described engine cylinder covers the 3rd pore being provided with and being connected with described each inlet cylinder, described air outlet hole is connected with the 3rd pore, and the first cavity is connected with the 3rd pore by described air outlet hole, the second pore with inlet cylinder.
6. an egr system, is characterized in that, comprising: motor and the EGR channel structure as described in any one of claim 1-5, described EGR channel vibrational power flow is on the cylinder cap of described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038401.6A CN103742303B (en) | 2014-01-26 | 2014-01-26 | A kind of EGR channel structure and egr system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038401.6A CN103742303B (en) | 2014-01-26 | 2014-01-26 | A kind of EGR channel structure and egr system |
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| Publication Number | Publication Date |
|---|---|
| CN103742303A CN103742303A (en) | 2014-04-23 |
| CN103742303B true CN103742303B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410038401.6A Active CN103742303B (en) | 2014-01-26 | 2014-01-26 | A kind of EGR channel structure and egr system |
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| CN (1) | CN103742303B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644037A (en) * | 2018-04-19 | 2018-10-12 | 浙江吉利控股集团有限公司 | EGR air inlet tracks |
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| FR2655382A1 (en) * | 1989-12-04 | 1991-06-07 | Peugeot | Device for introducing additional gas, such as air, into an internal combustion engine, and engine equipped with such a device |
| JP2000192860A (en) * | 1998-12-25 | 2000-07-11 | Aisan Ind Co Ltd | Distribution pipe of exhaust gas recirculation system |
| JP2001123901A (en) * | 1999-10-21 | 2001-05-08 | Hitachi Chem Co Ltd | Intake manifold and method of manufacturing it |
| CN202468044U (en) * | 2011-12-29 | 2012-10-03 | 上汽通用五菱汽车股份有限公司 | Small gasoline engine cylinder cover |
| CN202789204U (en) * | 2012-07-16 | 2013-03-13 | 奇瑞汽车股份有限公司 | Integrated EGR (exhaust gas recirculation) channel structure |
| CN203239471U (en) * | 2012-06-05 | 2013-10-16 | 奇瑞汽车股份有限公司 | EGR (exhaust gas recirculation) channel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4020059B2 (en) * | 2003-10-10 | 2007-12-12 | 日産自動車株式会社 | Intake device for internal combustion engine |
-
2014
- 2014-01-26 CN CN201410038401.6A patent/CN103742303B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655382A1 (en) * | 1989-12-04 | 1991-06-07 | Peugeot | Device for introducing additional gas, such as air, into an internal combustion engine, and engine equipped with such a device |
| JP2000192860A (en) * | 1998-12-25 | 2000-07-11 | Aisan Ind Co Ltd | Distribution pipe of exhaust gas recirculation system |
| JP2001123901A (en) * | 1999-10-21 | 2001-05-08 | Hitachi Chem Co Ltd | Intake manifold and method of manufacturing it |
| CN202468044U (en) * | 2011-12-29 | 2012-10-03 | 上汽通用五菱汽车股份有限公司 | Small gasoline engine cylinder cover |
| CN203239471U (en) * | 2012-06-05 | 2013-10-16 | 奇瑞汽车股份有限公司 | EGR (exhaust gas recirculation) channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108644037A (en) * | 2018-04-19 | 2018-10-12 | 浙江吉利控股集团有限公司 | EGR air inlet tracks |
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| CN103742303A (en) | 2014-04-23 |
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