CN203239471U - EGR (exhaust gas recirculation) channel - Google Patents
EGR (exhaust gas recirculation) channel Download PDFInfo
- Publication number
- CN203239471U CN203239471U CN2013201585070U CN201320158507U CN203239471U CN 203239471 U CN203239471 U CN 203239471U CN 2013201585070 U CN2013201585070 U CN 2013201585070U CN 201320158507 U CN201320158507 U CN 201320158507U CN 203239471 U CN203239471 U CN 203239471U
- Authority
- CN
- China
- Prior art keywords
- egr
- cover plate
- egr passage
- cylinder cap
- channel
- 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
- 230000003044 adaptive effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007789 sealing 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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model aims to provide an EGR (exhaust gas recirculation) channel, which is integrated by EGR channel cover plates, is directly fixed onto a cylinder cover by bolts, and achieves the aims of optimizing configuration structure and reducing production cost. The EGR channel comprises the cylinder cover and the EGR channel cover plates, and is characterized in that the cylinder cover is provided with EGR gas outlets communicated with corresponding gas channels and cylinder cover slots communicated with all EGR gas outlets; each EGR channel cover plate is provided with cover plate slots adaptive to the cylinder cover slots in shape; the cylinder cover slots and the cover plate slots are matched to form the EGR channel; the EGR channel cover plate is also provided with EGR gas inlets communicated with the cover plate slots; and the cylinder cover and the EGR channel cover plate are fixedly connected by the bolts. The EGR channel is simple in production process, convenient to assemble, compact in structure, favorable for the configuration and mounting in a narrow space, and capable of effectively reducing the cost and has excellent practicability.
Description
Technical field
The utility model relates to a kind of EGR passage.
Background technique
Along with the pay attention to day by day of international community to environmental protection and using energy source, the Abgasgesetz day of motor car engine is tight increasingly.Therefore, adopt more advanced engine technology, reduce the important means that discharging and CO2 discharging becomes each automobile, internal-combustion engine manufacturer.EGR(EGR wherein) technology has become a kind of effective means that reduces discharging and oil consumption, more and more is applied on the vehicular engine.
Automobile-used egr system structure mainly comprises exhaust steam passage, EGR control valve and waste gas cooling channel.Egr system on the market adopts complicated pipe-line system or casting pipeline more now, and waste gas is introduced performance or intake manifold, its manufacturing process more complicated, and cost of production is higher.Because the impact of gas inlet position is difficult to accomplish the equilibrium of multi-cylinder EGR air inlet rate, worsen engine performance simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of novel EGR passage, by the integrated EGR passage of EGR passage cover plate, utilizes bolt directly to be fixed on the cylinder cap, the purpose that reaches optimized arrangement structure and reduce production costs.
EGR passage of the present utility model comprises cylinder cap and EGR passage cover plate, key is that described cylinder cap is provided with the EGR air outlet hole that communicates with corresponding air flue and the cylinder cap groove that is communicated with each EGR air outlet hole, described EGR passage cover plate is provided with the cover plate groove adaptive with the cylinder cap groove shapes, and described cylinder cap groove and cover plate groove fit form the EGR passage; Described EGR passage cover plate also is provided with the EGR inlet hole that communicates with the cover plate groove; Described cylinder cap utilizes bolt to be fixedly connected with the EGR passage cover plate.
EGR waste gas enters the EGR passage from the EGR inlet hole, enters each air flue of motor through the EGR air outlet hole again.
Further, for improving the EGR evening ratio, described EGR inlet hole is arranged at the geometrical center of EGR passage cover plate, so just so that the EGR inlet hole is as far as possible equal to the distance of each EGR air outlet hole.
Further, for making things convenient for the installation of suction tude, described EGR inlet hole is arranged at an end of EGR passage cover plate.
Further, for improving the sealing between cylinder cap and the EGR passage cover plate, be provided with gasket seal between described cylinder cap and the EGR passage cover plate.
Further, for cutting down finished cost, simplify technique, described cylinder cap groove and EGR air outlet hole are arranged on the cylinder cap by casting method; Described cover plate groove and EGR inlet hole are arranged on the EGR passage cover plate by casting method.
EGR passage production technology of the present utility model is simple, easy to assembly, compact structure, and the layout of being convenient in the small space is installed, and can effectively reduce cost, has good practicability.
Description of drawings
Fig. 1 is the three-dimensional structure diagram of embodiment 1 EGR passage.
Fig. 2 is the structural drawing of the cylinder cap in embodiment 1 the EGR passage.
Fig. 3 is the structural drawing of the EGR passage cover plate in embodiment 1 the EGR passage.
Fig. 4 is the structural drawing of the EGR passage cover plate in embodiment 2 the EGR passage.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail.
Embodiment 1:
Shown in Fig. 1～3, the EGR passage of the present embodiment comprises cylinder cap 1 and EGR passage cover plate 2, cylinder cap 1 is provided with the EGR air outlet hole 3 that communicates with corresponding air flue and the cylinder cap groove 4 that is communicated with each EGR air outlet hole 3 by casting method, EGR passage cover plate 2 is provided with the cover plate groove 5 adaptive with cylinder cap groove 4 shapes by casting method, and cylinder cap groove 4 cooperates formation EGR passage with cover plate groove 5; EGR passage cover plate 2 also is provided with the EGR inlet hole 6 that communicates with cover plate groove 5, and EGR inlet hole 6 is arranged at an end of EGR passage cover plate 2; Cylinder cap 1 utilizes bolt 7 to be fixedly connected with EGR passage cover plate 2.
When producing, at first cast cylinder cap 1 and EGR passage cover plate 2, and then assembled, EGR passage cover plate 2 is assembled on the cylinder cap 1 by the bolt 7 that passes mounting hole 8, its particular location is positioned at the below of cylinder cap 1 intake duct.Cylinder cap groove 4 cooperates formation EGR passage with cover plate groove 5, EGR waste gas enters the EGR passage from EGR inlet hole 6, enters each air flue of motor through EGR air outlet hole 3 again.
Above-mentioned EGR channel design is simply compact, has guaranteed that the EGR function-stable is realized and suitable batch production, not only can be used for the vehicular engine egr system, also can be used for other any type of fluids (comprising gas and liquid) control channel.
Embodiment 2:
As shown in Figure 4, the EGR inlet hole 6 in the EGR passage of the present embodiment is arranged at the geometrical center of EGR passage cover plate 2, and the structure of remaining part is identical with embodiment 1.
Claims (5)
1. EGR passage, comprise cylinder cap and EGR passage cover plate, it is characterized in that described cylinder cap is provided with the EGR air outlet hole that communicates with corresponding air flue and the cylinder cap groove that is communicated with each EGR air outlet hole, described EGR passage cover plate is provided with the cover plate groove adaptive with the cylinder cap groove shapes, and described cylinder cap groove and cover plate groove fit form the EGR passage; Described EGR passage cover plate also is provided with the EGR inlet hole that communicates with the cover plate groove; Described cylinder cap utilizes bolt to be fixedly connected with the EGR passage cover plate.
2. EGR passage according to claim 1 is characterized in that described EGR inlet hole is arranged at the geometrical center of EGR passage cover plate.
3. EGR passage according to claim 1 is characterized in that described EGR inlet hole is arranged at an end of EGR passage cover plate.
4. according to claim 1 and 2 or 3 described EGR passages, it is characterized in that being provided with gasket seal between described cylinder cap and the EGR passage cover plate.
5. EGR passage according to claim 4 is characterized in that described cylinder cap groove and EGR air outlet hole are arranged on the cylinder cap by casting method; Described cover plate groove and EGR inlet hole are arranged on the EGR passage cover plate by casting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201585070U CN203239471U (en) | 2012-06-05 | 2013-04-02 | EGR (exhaust gas recirculation) channel |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220261601.4 | 2012-06-05 | ||
| CN201220261601 | 2012-06-05 | ||
| CN2013201585070U CN203239471U (en) | 2012-06-05 | 2013-04-02 | EGR (exhaust gas recirculation) channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239471U true CN203239471U (en) | 2013-10-16 |
Family
ID=49316780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201585070U Expired - Lifetime CN203239471U (en) | 2012-06-05 | 2013-04-02 | EGR (exhaust gas recirculation) channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742303A (en) * | 2014-01-26 | 2014-04-23 | 奇瑞汽车股份有限公司 | EGR (exhaust gas recirculation) passage structure and EGR system |
-
2013
- 2013-04-02 CN CN2013201585070U patent/CN203239471U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742303A (en) * | 2014-01-26 | 2014-04-23 | 奇瑞汽车股份有限公司 | EGR (exhaust gas recirculation) passage structure and EGR system |
| CN103742303B (en) * | 2014-01-26 | 2016-01-27 | 奇瑞汽车股份有限公司 | A kind of EGR channel structure and egr system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
|
| CX01 | Expiry of patent term |