CN105971759A - Novel air cylinder cover integrating EGR channel - Google Patents
Novel air cylinder cover integrating EGR channel Download PDFInfo
- Publication number
- CN105971759A CN105971759A CN201610552285.9A CN201610552285A CN105971759A CN 105971759 A CN105971759 A CN 105971759A CN 201610552285 A CN201610552285 A CN 201610552285A CN 105971759 A CN105971759 A CN 105971759A
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- CN
- China
- Prior art keywords
- egr channel
- cylinder head
- channel
- cylinder cover
- integrated
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention relates to a novel air cylinder cover integrating an EGR channel, and belongs to the technical field of automobile engines. The novel air cylinder cover integrating the EGR channel comprises an air cylinder cover body, an integrated exhausting channel and the EGR channel, and the integrated exhausting channel and the EGR channel are arranged in the air cylinder cover body. The EGR channel extends to the rear end of the air inlet side of the air cylinder cover from the integrated exhausting channel. A water outlet pipe base is arranged at the rear end of the air inlet side of the air cylinder cover. The EGR channel is connected with a connecting pipe of an intake manifold at the position of the water outlet pipe base. The EGR channel comprises an EGR channel inner cavity which communicates with the integrated exhausting channel and is close to the side wall of the rear end of the cylinder cover, and a machining channel communicating with the EGR channel inner cavity. The novel air cylinder cover integrating the EGR channel is compact in engine arrangement structure and reliable in sealing; the shape of the EGR channel is smooth, and smooth circulation of gas is facilitated; and the temperature of waste gas can be effectively controlled.
Description
Technical field
The present invention relates to the technical field of automobile engine, it is more particularly related to a kind of novel integrated
The cylinder head of EGR channel.
Background technology
Common structure (non-integration type EGR channel) need to design independent sealing structure in the prior art, dismounting
Complexity, increases assembly cost and development cost；Further, since structure and seal request need to take bigger cloth
Between being empty, it is unfavorable for compactedness；And, EGR channel needs multistage EGR channel to machine in the prior art
Sequence, increases parts machining cost；Finally, due to the sealing structure of multistage may cause engine operation process
The leakage phenomenon of middle gas, reduces the reliability of gas extraction system.
Summary of the invention
In order to solve above-mentioned technical problem of the prior art, it is an object of the invention to provide a kind of novel integrated
The cylinder head of EGR channel.
In order to realize foregoing invention purpose, present invention employs techniques below scheme:
The cylinder head of a kind of novel integrated EGR channel, including cylinder head body, this internal integrated aerofluxus of cylinder head
Road and EGR channel, described EGR channel extends to cylinder head air inlet side rear end from described integrated exhaust duct, described
Air inlet side rear end is provided with water outlet base, and described EGR channel is at the position of this water outlet base and inlet manifold
Connecting tube connects；It is characterized in that: described EGR channel includes connecting with described integrated exhaust duct and near cylinder cap
The EGR channel inner chamber of rear end sidewall, and with the machining passage of described EGR channel inner space.
Wherein, outside described machining passage extends to described cylinder head rear end sidewall and sealed by screw plug.
Wherein, described EGR channel is positioned at cylinder head and passes from cylinder cover water jacket side, described EGR channel
Tube wall and described cylinder cover water jacket wall altogether.
Wherein, described EGR channel inner chamber is elbow structure, and passes through casting.
Compared with prior art, the cylinder head of novel integrated EGR channel of the present invention has following useful
Effect:
The cylinder head engine arrangement using the novel integrated EGR channel of the present invention is compact, seals reliable；
EGR channel shape smoothes out, the beneficially smooth and easy circulation of gas；Can effectively control EGT.
Accompanying drawing explanation
Fig. 1 is the vertical cross-section structural representation of the cylinder head of the novel integrated EGR channel of embodiment 1.
Fig. 2 is the horizontal cross-section structural representation of the cylinder head of the novel integrated EGR channel of embodiment 1.
Detailed description of the invention
Below with reference to specific embodiment, the cylinder head of novel integrated EGR channel of the present invention is done into one
The elaboration of step, to help those skilled in the art that inventive concept, the technical scheme of the present invention are had more completely,
Accurate and deep understanding.
Embodiment 1
As shown in Figure 1-2, the cylinder head of the novel integrated EGR channel of the present embodiment, including cylinder head body 1,
Integrated exhaust duct 6 and EGR channel 2 in cylinder head body 1, described EGR channel 2 is prolonged from described integrated exhaust duct 6
Extending cylinder head air inlet side rear end 7, described air inlet side rear end 7 is provided with water outlet base 4, described EGR channel 2
It is connected with the connecting tube of inlet manifold in the position of this water outlet base 4.Described EGR channel 2 includes and described collection
Exhaust duct 5 is become to connect and the EGR channel inner chamber 6 of close cylinder cap rear end sidewall, and with described EGR channel inner chamber even
Logical machining passage, described machining passage extends to outside the sidewall of described cylinder head rear end and by screw plug 3
Seal.Described EGR channel is positioned at cylinder head and passes from cylinder cover water jacket side, the tube wall of described EGR channel
With described cylinder cover water jacket wall altogether.Described machining passage is straight way structure, and described EGR channel inner chamber is bend knot
Structure, and pass through casting.The structure of the present embodiment passes through the integrated EGR channel in cylinder cap rear end, need not design solely
The vertical structure that seals, and save the machining sequence of multistage passage, save exploitation, produce and later maintenance cost collection
Become EGR channel to carry out cooling down waste gas by coolant, increase film-cooled heat, eliminate the external EGR of complexity
Chiller, and by optimizing, it is achieved that the shortizationest of EGR channel length so that waste gas can be evenly into
Air intake duct, is more beneficial for discharge；Integrated EGR channel reduces independent sealed structure, increases gas extraction system reliability；
Integrated EGR channel can effectively save cylinder cap rear end arrangement space, makes system structure compacter.
In order to alleviate weight and save oil gas, the cylinder head of novel integrated EGR channel described in the present invention
Aluminium alloy casting is used to form.The most described aluminium alloy has good height at a temperature of electromotor uses
Temperature intensity, corrosion resistance, and it is enough to ensure to need in the molten state to have to have good casting character
Mobility；And the heat-resisting aluminium alloy used in prior art, for ensureing its elevated temperature strength, generally its Si content is high
Reaching 18～25wt%, the highest Si content causes its Castability to be deteriorated, thus complex forming technology, cost
High.The most described aluminium alloy by percentage to the quality, Si, 0.8～the 1.2wt% containing 8.2～10.0wt%
The Mn of the Cu of the Cr of Ni, 0.5～1.2wt%, 0.2～0.8wt%, 0.3～0.5wt%, 0.2～0.5wt% Be,
The Ca of 0.03～0.06wt%, surplus is Al and inevitable impurity；And Fe < 0.1wt%.In the present invention,
Described V6 type cylinder head pouring temperature is 780～830 DEG C；(520 DEG C solid to carry out T6 heat treatment after casting
Molten process 8～10 hours, 200 DEG C of Ageing Treatment 10～12 hours after shrend).In the present invention, although
The content of Si is relatively low, but by adding the content of appropriate Cr, Be and Ca, and the content controlling Fe is less than
0.1wt%, it is possible to ensure that room temperature strength reaches 280～350MPa, and intensity is all right under conditions of 300 DEG C
Reach 200～230MPa.
For the ordinary skill in the art, specific embodiment has simply carried out exemplary retouching to the present invention
State, it is clear that the present invention implements and is not subject to the restrictions described above, as long as have employed the method design of the present invention
With the improvement of the various unsubstantialities that technical scheme is carried out, or the most improved design by the present invention and technical scheme
Directly apply to other occasion, all within protection scope of the present invention.
Claims (8)
1. a cylinder head for novel integrated EGR channel, including cylinder head body, cylinder head, this is internal the most integrated
Exhaust duct and EGR channel, described EGR channel extends to cylinder head air inlet side rear end from described integrated exhaust duct,
Described air inlet side rear end is provided with water outlet base, and described EGR channel is at the position of this water outlet base and air inlet qi
The connecting tube of pipe connects；It is characterized in that: described EGR channel includes connecting and close with described integrated exhaust duct
The EGR channel inner chamber of cylinder cap rear end sidewall, and with the machining passage of described EGR channel inner space.
The cylinder head of novel integrated EGR channel the most according to claim 1, it is characterised in that: described machine
Processing channel is extended to outside the sidewall of described cylinder head rear end and is sealed by screw plug.
The cylinder head of novel integrated EGR channel the most according to claim 1, it is characterised in that: described
EGR channel is positioned at cylinder head and passes from cylinder cover water jacket side, the tube wall of described EGR channel and described cylinder cap
Water jacket wall altogether.
The cylinder head of novel integrated EGR channel the most according to claim 1, it is characterised in that: described
EGR channel inner chamber is elbow structure, and passes through casting.
The cylinder head of novel integrated EGR channel the most according to claim 1, it is characterised in that: described aluminum
Alloy by percentage to the quality, the Ni of Si, 0.8～1.2wt%, 0.5～the 1.2wt%'s containing 8.2～10.0wt%
The Ca of the Be of the Mn of the Cu of Cr, 0.2～0.8wt%, 0.3～0.5wt%, 0.2～0.5wt%, 0.03～0.06wt%,
Surplus is Al and inevitable impurity.
The cylinder head of novel integrated EGR channel the most according to claim 5, it is characterised in that:
Fe < 0.1wt%.
The cylinder head of novel integrated EGR channel the most according to claim 5, it is characterised in that: described
V6 type cylinder head pouring temperature is 780～830 DEG C；T6 heat treatment is carried out after casting.
The cylinder head of novel integrated EGR channel the most according to claim 7, it is characterised in that: room temperature is strong
Degree is 280～350MPa, and 300 DEG C of intensity are 200～230MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552285.9A CN105971759A (en) | 2016-07-14 | 2016-07-14 | Novel air cylinder cover integrating EGR channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552285.9A CN105971759A (en) | 2016-07-14 | 2016-07-14 | Novel air cylinder cover integrating EGR channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971759A true CN105971759A (en) | 2016-09-28 |
Family
ID=56952282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610552285.9A Pending CN105971759A (en) | 2016-07-14 | 2016-07-14 | Novel air cylinder cover integrating EGR channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218149A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap assembly with EGR functions |
| CN110500464A (en) * | 2019-08-21 | 2019-11-26 | 江苏长龄液压股份有限公司 | A kind of compact center-rotary joint |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000161131A (en) * | 1998-12-01 | 2000-06-13 | Honda Motor Co Ltd | Cylinder head structure for multiple-cylinder engine |
| CN201535209U (en) * | 2009-09-25 | 2010-07-28 | 上汽通用五菱汽车股份有限公司 | EGR (exhaust gas recirculation passage) structure for cylinder head of engine |
| CN201568163U (en) * | 2009-10-20 | 2010-09-01 | 浙江吉利汽车研究院有限公司 | Automobile engine EGR assembly air inlet structure |
| CN102301021A (en) * | 2009-01-27 | 2011-12-28 | 株式会社大纪铝工业所 | Aluminum Alloy For Pressure Casting And Casting Made Of Said Aluminum Alloy |
| CN203308609U (en) * | 2013-05-30 | 2013-11-27 | 重庆小康工业集团股份有限公司 | Exhaust gas recirculation system of engine |
| CN104696117A (en) * | 2015-01-15 | 2015-06-10 | 东风朝阳朝柴动力有限公司 | Compact type engine EGR (exhaust gas recirculation) system |
| CN204827698U (en) * | 2015-08-17 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Petrol engine and cylinder cap thereof |
| CN205936869U (en) * | 2016-07-14 | 2017-02-08 | 阿尔特汽车技术股份有限公司 | Novel cylinder head of integrated EGR passageway |
-
2016
- 2016-07-14 CN CN201610552285.9A patent/CN105971759A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000161131A (en) * | 1998-12-01 | 2000-06-13 | Honda Motor Co Ltd | Cylinder head structure for multiple-cylinder engine |
| CN102301021A (en) * | 2009-01-27 | 2011-12-28 | 株式会社大纪铝工业所 | Aluminum Alloy For Pressure Casting And Casting Made Of Said Aluminum Alloy |
| CN201535209U (en) * | 2009-09-25 | 2010-07-28 | 上汽通用五菱汽车股份有限公司 | EGR (exhaust gas recirculation passage) structure for cylinder head of engine |
| CN201568163U (en) * | 2009-10-20 | 2010-09-01 | 浙江吉利汽车研究院有限公司 | Automobile engine EGR assembly air inlet structure |
| CN203308609U (en) * | 2013-05-30 | 2013-11-27 | 重庆小康工业集团股份有限公司 | Exhaust gas recirculation system of engine |
| CN104696117A (en) * | 2015-01-15 | 2015-06-10 | 东风朝阳朝柴动力有限公司 | Compact type engine EGR (exhaust gas recirculation) system |
| CN204827698U (en) * | 2015-08-17 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Petrol engine and cylinder cap thereof |
| CN205936869U (en) * | 2016-07-14 | 2017-02-08 | 阿尔特汽车技术股份有限公司 | Novel cylinder head of integrated EGR passageway |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218149A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap assembly with EGR functions |
| CN110500464A (en) * | 2019-08-21 | 2019-11-26 | 江苏长龄液压股份有限公司 | A kind of compact center-rotary joint |
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Application publication date: 20160928 |