CN104564453A - Intake manifold of EGR engine - Google Patents
Intake manifold of EGR engine Download PDFInfo
- Publication number
- CN104564453A CN104564453A CN201510008395.4A CN201510008395A CN104564453A CN 104564453 A CN104564453 A CN 104564453A CN 201510008395 A CN201510008395 A CN 201510008395A CN 104564453 A CN104564453 A CN 104564453A
- Authority
- CN
- China
- Prior art keywords
- egr
- intake manifold
- intake
- egr valve
- pipe
- 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
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
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses an intake manifold of an EGR engine. The intake manifold of the EGR engine comprises a pressure stabilizing pipe which is a long pipe with two sealed ends and provided with a pressure stabilizing chamber, at least two intake branch pipes which are arranged in parallel at an interval on the side surface of the pressure stabilizing pipe, an intake main pipe, an EGR intake duct and an EGR valve mounting flange, wherein the intake end of each intake branch pipe is communicated with the pressure stabilizing chamber of the pressure stabilizing pipe, and a branch pipe flange is arranged at the exhaust end of the intake branch pipe; the exhaust end of the intake main pipe is communicated with the pressure stabilizing chamber of the pressure stabilizing pipe, and a main pipe flange is arranged at the intake end of the intake main pipe; the exhaust end of the EGR intake duct is communicated with the intake main pipe; the EGR valve mounting flange is arranged at the intake end of the EGR intake duct. The intake manifold is directly mounted and fixed on the EGR valve mounting flange by use of an EGR valve; an EGR valve support is omitted and special parts such as a connecting steel pipe and an EGR valve support between the EGR mixer and the EGR valve of the EGR system and the intake manifold are reduced, and therefore, the cost can be greatly reduced and the reliability of the EGR system is improved.
Description
Technical field
The present invention relates to engine art, particularly a kind of intake manifold of EGR engine.
Background technique
Internal-combustion engine is a kind of conventional power machine, has been widely used in the fields such as communications and transportation, industry, agricultural.Wherein intake manifold is one of internal-combustion engine strength member, and its effect is assigned to equably in each cylinder by fresh air.Engine exhaust laws and regulations requirement is more and more tighter in recent years, in order to improve the discharge of internal-combustion engine, increasing motor employs egr system, egr system is isolated by a part of waste gas in outlet pipe, and utilize EGR valve to control exhaust gas flow, after making itself and fresh air mixing by EGR mixer (or mixing tube) again, enter intake manifold together, mixture distribution burns by intake manifold again in each cylinder.
Traditional egr system arrangement, EGR valve is not be directly installed in intake manifold, needs design support in addition to fix EGR valve, and will connect with steel tube between EGR valve and intake manifold.Therefore traditional intake manifold does not have EGR valve mounting flange and EGR intake duct, and traditional intake manifold does not have the function of EGR mixer, install independently EGR mixer.
There is following shortcoming in traditional technological scheme: 1, EGR valve is not directly be fixed in intake manifold, will design stent support EGR valve in addition; 2, fastener for connection to be designed in addition between EGR valve and intake manifold; 3, convention EGR systems arrangement adds the special purpose parts such as support and steel pipe, and cost is higher, poor reliability; 4, larger space is taken when traditional scheme egr system is arranged, and unsightly.5, traditional intake manifold function singleness, does not have EGR valve mounting flange, does not have EGR gas inlet road, does not have the function of EGR mixer.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of intake manifold of simple and reasonable EGR engine, the intake manifold of this EGR engine is by being directly fixed on EGR valve mounting flange by EGR valve, eliminate EGR valve support, and EGR intake duct is set between EGR valve mounting flange and intake manifold eliminates joint steel pipe between EGR valve and intake manifold, decrease the EGR mixer of egr system, the special purpose parts such as joint steel pipe, EGR valve support between EGR valve and intake manifold, significantly can reduce costs, improve the reliability of egr system.In addition, EGR mixer is integrated in intake manifold by the intake manifold of this EGR engine, can enable waste gas and fresh air is full and uniform mixes, and eliminate and design independently EGR mixer, anufacturability is good, easy processing, and cost performance is high.
For achieving the above object, the invention provides the intake manifold of EGR engine, comprising: voltage-stabiliser tube, it is the elongated tubular of sealing two ends, and has pressure stabilizing cavity; Air intake branch, it is at least two, and spacing side by side is arranged on the side of described voltage-stabiliser tube; The inlet end of described air intake branch is communicated with the pressure stabilizing cavity of voltage-stabiliser tube, and the outlet side of this air intake branch is provided with a pipe flange; Intake manifold, its outlet side is communicated with the pressure stabilizing cavity of described voltage-stabiliser tube, and the inlet end of this intake manifold is provided with total pipe flange; EGR intake duct, its outlet side is communicated with described intake manifold; And EGR valve mounting flange, it is arranged in the inlet end of described EGR intake duct.
Preferably, in technique scheme, intake manifold is laid in the neutral position of voltage-stabiliser tube.
Preferably, in technique scheme, the axis of intake manifold and the axis vertical take-off of voltage-stabiliser tube.
Preferably, in technique scheme, the outlet side of EGR intake duct is stretched in intake manifold and is formed one section of flange.
Preferably, in technique scheme, the overhang of flange is 1/5 ~ 1/2 of intake manifold's internal diameter.
Preferably, in technique scheme, EGR valve mounting flange offers at least two tapped holes, for being bolted EGR valve.
Compared with prior art, the present invention has following beneficial effect: the intake manifold of this EGR engine is by being directly fixed on EGR valve mounting flange by EGR valve, eliminate EGR valve support, and EGR intake duct is set between EGR valve mounting flange and intake manifold eliminates joint steel pipe between EGR valve and intake manifold, decrease the EGR mixer of egr system, the special purpose parts such as joint steel pipe, EGR valve support between EGR valve and intake manifold, significantly can reduce costs, improve the reliability of egr system.In addition, EGR mixer is integrated in intake manifold by the intake manifold of this EGR engine, can enable waste gas and fresh air is full and uniform mixes, and eliminate and design independently EGR mixer, anufacturability is good, easy processing, and cost performance is high.
Accompanying drawing explanation
Fig. 1 is the perspective view of the intake manifold of EGR engine of the present invention.
Fig. 2 is the broken section structural representation of the intake manifold of EGR engine of the present invention.
Fig. 3 is the plan structure schematic diagram of the intake manifold of EGR engine of the present invention.
Fig. 4 is the side-looking structural representation of the intake manifold of EGR engine of the present invention.
Fig. 5 is the using state structural representation of the intake manifold of EGR engine of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figures 1 to 5, specifically comprising according to the intake manifold of the EGR engine of the specific embodiment of the invention: voltage-stabiliser tube 1, intake manifold 2, air intake branch 5, EGR valve mounting flange 4 and EGR intake duct 3.Wherein, EGR valve is directly fixed on EGR valve mounting flange 4, eliminates EGR valve support; EGR intake duct 3 is set between EGR valve mounting flange and intake manifold and eliminates joint steel pipe between EGR valve and intake manifold, decrease the EGR mixer of egr system, the special purpose parts such as joint steel pipe, EGR valve support between EGR valve and intake manifold, significantly can reduce costs, improve the reliability of egr system.In addition, EGR mixer is integrated in intake manifold 2 by the intake manifold of this EGR engine, can enable waste gas and fresh air is full and uniform mixes, and eliminate and design independently EGR mixer, anufacturability is good, easy processing, and cost performance is high.
Wherein, voltage-stabiliser tube 1 is the elongated tubular of sealing two ends, and has pressure stabilizing cavity.Air intake branch 5 is at least two, and spacing side by side is arranged on the side of voltage-stabiliser tube 1; The inlet end of air intake branch 5 is communicated with the pressure stabilizing cavity of voltage-stabiliser tube 1, and the outlet side of air intake branch 5 is provided with a pipe flange 6.
Intake manifold 2 is laid in the neutral position of voltage-stabiliser tube 1, the axis of intake manifold 2 and the axis vertical take-off of voltage-stabiliser tube 1; The outlet side of intake manifold 2 is communicated with the pressure stabilizing cavity of voltage-stabiliser tube 1, and the inlet end of intake manifold 2 is provided with total pipe flange.
The outlet side of EGR intake duct 3 is communicated with intake manifold 2, for being imported in intake manifold 2 by EGR waste gas.The outlet side of EGR intake duct 3 is stretched in intake manifold 2 and is formed one section of flange 12, makes waste gas can be evenly distributed on air-flow center when EGR intake duct 3 flows into intake manifold 2, effectively improves the uniformity of EGR mixing.The overhang (extrusion) of flange 12 is 1/5 ~ 1/2 of intake manifold 2 internal diameter, and the length of flange 12 can adjust according to CFD computational analysis.EGR intake duct 3 is axial arranged along voltage-stabiliser tube 1, and is close to the outer wall of voltage-stabiliser tube 1, and EGR intake duct 3 can adopt Drilling operation or direct casting to obtain as the case may be.
EGR valve mounting flange 4 is arranged in the inlet end of EGR intake duct 3, and be positioned at front end or the rear end of voltage-stabiliser tube 1, this EGR valve mounting flange 4 offers at least two tapped holes 11, for fixing EGR valve 20 by bolt 21, EGR valve is directly fixed on EGR valve mounting flange 4, thus omits EGR valve support.
As shown in Figure 5, during use, EGR valve 20 is directly installed on the EGR valve mounting flange 4 of intake manifold, fixes EGR valve 20 with bolt 21.Waste gas is by after Pipeline transport to EGR valve 20, EGR valve 20 is by the Operating condition adjustment exhaust gas flow according to motor, waste gas after EGR valve 20 accurate flow control enters into EGR intake duct 3 from EGR valve mounting flange 4, and the intake manifold 2 being entered into intake manifold by EGR intake duct 3 is inner.Namely waste gas start after entering into intake manifold 2 inside and fresh air mixing, and now intake manifold 2 is provided with the function of EGR mixer, eliminates and designs independently EGR mixer.Because EGR intake duct 3 stretches out one section of flange 12 in intake manifold 2, waste gas can be evenly distributed on air-flow center when flowing into intake manifold 2, effectively improve the uniformity of EGR mixing, therefore the intake manifold 2 in this intake manifold, except being the input channel of fresh air, also serves the effect of EGR mixer.Namely therefore this kind of intake manifold can make egr system more succinct, compact, and decrease number of spare parts and cost, outward appearance have also been obtained improvement.
To sum up, the intake manifold of this EGR engine is by being directly fixed on EGR valve mounting flange by EGR valve, eliminate EGR valve support, and EGR intake duct is set between EGR valve mounting flange and intake manifold eliminates joint steel pipe between EGR valve and intake manifold, decrease the EGR mixer of egr system, the special purpose parts such as joint steel pipe, EGR valve support between EGR valve and intake manifold, significantly can reduce costs, improve the reliability of egr system.In addition, EGR mixer is integrated in intake manifold by the intake manifold of this EGR engine, can enable waste gas and fresh air is full and uniform mixes, and eliminate and design independently EGR mixer, anufacturability is good, easy processing, and cost performance is high.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (6)
1. an intake manifold for EGR engine, is characterized in that, comprising:
Voltage-stabiliser tube, it is the elongated tubular of sealing two ends, and has pressure stabilizing cavity;
Air intake branch, it is at least two, and spacing side by side is arranged on the side of described voltage-stabiliser tube; The inlet end of described air intake branch is communicated with the pressure stabilizing cavity of voltage-stabiliser tube, and the outlet side of this air intake branch is provided with a pipe flange;
Intake manifold, its outlet side is communicated with the pressure stabilizing cavity of described voltage-stabiliser tube, and the inlet end of this intake manifold is provided with total pipe flange;
EGR intake duct, its outlet side is communicated with described intake manifold; And
EGR valve mounting flange, it is arranged in the inlet end of described EGR intake duct.
2. the intake manifold of EGR engine according to claim 1, is characterized in that, described intake manifold is laid in the neutral position of voltage-stabiliser tube.
3. the intake manifold of EGR engine according to claim 2, is characterized in that, the axis of described intake manifold and the axis vertical take-off of voltage-stabiliser tube.
4. the intake manifold of EGR engine according to claim 1, is characterized in that, the outlet side of described EGR intake duct is stretched in intake manifold and formed one section of flange.
5. the intake manifold of EGR engine according to claim 4, is characterized in that, the overhang of described flange is 1/5 ~ 1/2 of intake manifold's internal diameter.
6. the intake manifold of EGR engine according to claim 1, is characterized in that, described EGR valve mounting flange offers at least two tapped holes, for being bolted EGR valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008395.4A CN104564453A (en) | 2015-01-08 | 2015-01-08 | Intake manifold of EGR engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008395.4A CN104564453A (en) | 2015-01-08 | 2015-01-08 | Intake manifold of EGR engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564453A true CN104564453A (en) | 2015-04-29 |
Family
ID=53081336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510008395.4A Pending CN104564453A (en) | 2015-01-08 | 2015-01-08 | Intake manifold of EGR engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564453A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209687A (en) * | 2018-11-02 | 2019-01-15 | 宁波市鄞州德来特技术有限公司 | Gasoline engine exhaust recirculation line structure |
| CN111749822A (en) * | 2020-08-03 | 2020-10-09 | 广西玉柴机器股份有限公司 | Air inlet pipe structure of engine |
-
2015
- 2015-01-08 CN CN201510008395.4A patent/CN104564453A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209687A (en) * | 2018-11-02 | 2019-01-15 | 宁波市鄞州德来特技术有限公司 | Gasoline engine exhaust recirculation line structure |
| CN111749822A (en) * | 2020-08-03 | 2020-10-09 | 广西玉柴机器股份有限公司 | Air inlet pipe structure of engine |
| CN111749822B (en) * | 2020-08-03 | 2024-05-14 | 广西玉柴机器股份有限公司 | Air inlet pipe structure of engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3470690A (en) | Exhaust header | |
| CN104595057B (en) | exhaust injection device | |
| CN106704039A (en) | Gaseous fuel, EGR and air mixing device and insert | |
| MX2008013290A (en) | Multiple height fluid mixer and method of use. | |
| GB2431964A (en) | Diesel engine exhaust gas treatment system with a particulate filter and exhaust gas recirculation | |
| CN207945026U (en) | EGR intake elbows and EGR gas handling systems | |
| CN204371531U (en) | The intake manifold of EGR engine | |
| CN103670833A (en) | Air intake manifold of diesel engine | |
| CN104564453A (en) | Intake manifold of EGR engine | |
| US9739237B2 (en) | Exhaust gas recirculation device | |
| KR20140075586A (en) | Compensator of an exhaust gas aftertreatment system | |
| CN106337714B (en) | Nozzle integrated form SCR catalytic muffler | |
| CN209818187U (en) | Engine and air inlet structure thereof | |
| CN107559113A (en) | The air inlet pipe and engine of engine | |
| CN208281026U (en) | Tail gas collecting device and equipment | |
| US20180128150A1 (en) | Exhaust manifold | |
| KR101704239B1 (en) | Device for mixing EGR gas and fresh air | |
| KR101795699B1 (en) | Arrangement for recirculation of exhausts at an internal combustion engine | |
| CN204870433U (en) | Car warm braw water pipe assembly | |
| RU135726U1 (en) | CATALYTIC COLLECTOR OF THE EXHAUST GAS SYSTEM OF THE INTERNAL COMBUSTION ENGINE | |
| CN202628318U (en) | Engine air inlet pipe integrated with EGR (exhaust gas Recirculation) air outlet pipe | |
| ES2307109T5 (en) | Device for mixing recycled exhaust gases in the intake air of an engine and procedure for recycling exhaust gases | |
| CN211116337U (en) | Engine intake manifold | |
| CN213205863U (en) | Air inlet pipeline of engine | |
| CN109826700B (en) | Exhaust manifold, air inlet and exhaust system and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |