CN104100345A - Exhaust system as well as engine and automobile comprising exhaust system - Google Patents
Exhaust system as well as engine and automobile comprising exhaust system Download PDFInfo
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- CN104100345A CN104100345A CN201310117002.4A CN201310117002A CN104100345A CN 104100345 A CN104100345 A CN 104100345A CN 201310117002 A CN201310117002 A CN 201310117002A CN 104100345 A CN104100345 A CN 104100345A
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- vent systems
- catalyzing unit
- ternary catalyzing
- pressurized machine
- motor
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Abstract
The invention relates to a turbocharged engine exhaust system as well as an engine and an automobile comprising the same. A turbocharger is arranged on the exhaust side of the engine, and is connected to the outlet of an exhaust manifold of the engine; the turbine end outlet of the turbocharger is connected with a three-way catalyst; the turbocharger is positioned above the exhaust manifold of the engine. By adopting the exhaust system, the engine and the automobile disclosed by the invention, an exhaust system which is simple and compact in structure and is applied to a supercharged engine is realized, and the exhaust performance can be improved efficiently.
Description
Technical field
The present invention relates to the manufacturing technology field of exhaust gas turbine motor; More particularly, the present invention relates to a kind of turbosupercharged engine vent systems, and further relate to the motor, the automobile that comprise it.
Background technique
In waste gas sent off from automobiles, contain various harmful gases.In order to suppress the generation of these harmful gases, impel automobile production producer to improve product to reduce the source of generation of these harmful gases, country has formulated relevant automobile emissions standards.Current national fourth stage and five-stage emission request are from now on had higher requirement to the emission control of motor.
Ternary catalyzing unit is mounted in most important outer purifier in automobile exhaust system, and the various harmful gases that it can be discharged vehicle exhaust change harmless carbon dioxide, water and nitrogen into by oxidation and reduction.When the vehicle exhaust of high temperature is during by purification plant, the purifying agent in ternary catalyzing unit will strengthen the activity of harmful gas, impel it to carry out certain oxidation and reduce chemical reaction become innocuous gas, and vehicle exhaust is purified.In order to improve the ability of exhaust after-treatment, improve the performance of catalyzer ignition, conventionally require to use larger sized ternary catalyzing unit, ternary catalyzing unit will more close enmgine exhaust simultaneously, obtains higher delivery temperature in the cold start-up stage.
In the supercharged engine of prior art, turbosupercharger is arranged in the exhaust side of motor, connects gas exhaust manifold outlet, and ternary catalyzing unit is connected to the outlet of pressurized machine whirlpool end side by side, purifies and brings out a mouthful waste gas of discharging from pressurized machine whirlpool.This set has caused the arrangement space of ternary catalyzing unit and pressurized machine to interfere, and affects the layout of the two.In order to meet compact spatial constraints, the size of the two and position arrange the compromise of all having to make, and make to realize optimum turbosupercharging and exhaust purification performance.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly has the turbosupercharging of optimization and the turbosupercharged engine vent systems of exhaust purification performance, and the motor, the automobile that comprise this vent systems are further provided.
For solving the problems of the technologies described above, a first aspect of the present invention provides a kind of turbosupercharged engine vent systems, its turbosupercharger is arranged on the exhaust side of motor and is connected to the outlet of the gas exhaust manifold of described motor, bring out mouth in the whirlpool of described turbosupercharger and be connected with ternary catalyzing unit, wherein, described turbosupercharger is positioned at the top of the gas exhaust manifold of described motor.By setting like this, in the case of ensureing the clearance of car load outlet pipe, can obtain large as far as possible ternary catalyzing unit volume, be conducive to the purification of waste gas.
Alternatively, in foregoing vent systems, the natural frequency of the whole vent systems of described motor is higher than the point of resonance of described motor.
Alternatively, in foregoing vent systems, the carrier inlet of described ternary catalyzing unit brings out mouth near the whirlpool of described turbosupercharger.
Alternatively, in foregoing vent systems, the outlet of described gas exhaust manifold is connected with described pressurized machine by double-screw bolt upward and by adpting flange.
Alternatively, in foregoing vent systems, described gas exhaust manifold is connected with the cylinder cap of described motor by bolt.
Alternatively, in foregoing vent systems, the whirlpool of described pressurized machine bring out mouthful and described ternary catalyzing unit by flange by Stud connection.
Alternatively, in foregoing vent systems, described pressurized machine is by pressurized machine stent support, and the upper strong point of described pressurized machine support is fixed on the outlet(discharge) flange of described gas exhaust manifold, and lower support point is fixed on the cylinder body of described motor.
Alternatively, in foregoing vent systems, described ternary catalyzing unit is by ternary catalyzing unit stent support, and the lower end of described ternary catalyzing unit is supported on the cylinder body of described motor.
Further, a second aspect of the present invention provides a kind of turbosupercharged engine, and described motor has the vent systems as described in any one in aforementioned first aspect.
Further, a third aspect of the present invention provides a kind of automobile, and described automobile comprises the motor as described in aforementioned second aspect.
In vent systems, motor and the automobile aspect as above according to the present invention, under the limited condition of arrangement space certain in the car load outlet pipe ground Clearance and pressurized machine and gas exhaust manifold, advantageously realize a kind of simple in structure, compact vent systems design that is applied to supercharged engine.This design makes ternary catalyzing unit needn't move down the pressurized machine arrangement space that just can provide enough and ensured simultaneously along short transverse the clearance of car load outlet pipe, arrange respectively gas exhaust manifold, pressurized machine, ternary catalyzing unit at the limited exhaust side of engine, and in optional situation, pressurized machine support and ternary catalyzing unit support etc. can also be installed.Meanwhile, the structure of cloth postpone meets the natural frequency of whole vent systems higher than motor Coherence resonance point, and structural strength meets the material performance requirement of gas exhaust manifold, pressurized machine support and ternary catalyzing unit support.The carrier inlet of ternary catalyzing unit, as far as possible near pressurized machine exhaust air outlet, can help the ignition of catalyzer effectively, improves emission treatment performance; In addition, the whole design proposal that this rising sun has has reduced difficulty and the risk of the design upgrade job from natural aspiration to supercharged engine, and cost is low.
Brief description of the drawings
With reference to accompanying drawing, it is more obvious that disclosure of the present invention will become.Should understand, these accompanying drawings are the object for illustrating only, and is not intended to limit protection scope of the present invention.In figure:
Fig. 1 schematically shows according to the sketch of a kind of mode of execution of turbosupercharged engine vent systems of the present invention;
Fig. 2 and 3 schematically shows according to the circulation style of the air-flow of pressurized machine in turbosupercharged engine vent systems of the present invention; And
Fig. 4 schematically shows according to immovable point and the supporting way of the pressurized machine support of the vent systems of turbosupercharged engine of the present invention and ternary catalyzing unit support.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing; Be appreciated that reference character identical in drawing and description is for representing identical technical characteristics.
Fig. 1 schematically shows according to the sketch of a kind of mode of execution of turbosupercharged engine vent systems of the present invention.In the drawings, reference character 1 represents the cylinder cap of engine cylinder-body, 2 represent gas exhaust manifold, 3 represent turbosupercharger, and 4 represent pressurized machine support, and 5 represent the adpting flange of pressurized machine and ternary catalyzing unit, 6 represent ternary catalyzing unit, 7 represent ternary catalyzing unit support, and 8 represent the adpting flange of gas exhaust manifold and pressurized machine, and 9 represent connecting bolt.
As shown in the figure, the air outlet flue of the gas exhaust manifold 2(of turbosupercharged engine) be connected to the cylinder cap 1 of motor by several bolts 9, and the outlet that converges of gas exhaust manifold 2 is connected to turbosupercharger 3,, turbosupercharger 3 is arranged on the exhaust side of motor and is connected to the outlet of gas exhaust manifold 2.Gas exhaust manifold 2 extends that it exports upward after cylinder cap 1, makes turbosupercharger be positioned at the top of enmgine exhaust, has reserved sufficient space to the installation of ternary catalyzing unit 6.The outlet of gas exhaust manifold 2 can be connected with pressurized machine 3 by double-screw bolt by adpting flange 5.Due to lifting the height of pressurized machine 3, can make the position of pressurized machine 3 in short transverse can be higher than cylinder cap 1.The whirlpool of turbosupercharger 3 brings out between mouth and ternary catalyzing unit 6 also passes through adpting flange 8 by Stud connection; The carrier inlet of ternary catalyzing unit can be tried one's best and be brought out mouthful ignition with help catalyzer, improves emission treatment performance near the whirlpool of turbosupercharger.Can understand, can choose according to specific circumstances the quantity of double-screw bolt and the concrete shape of flange herein, and needn't stick to illustrated number and shape.
In order to improve the installation stability of turbosupercharger 3 and ternary catalyzing unit 6, present embodiment is also provided with pressurized machine support 4 for supporting turbosupercharger 3 and for supporting the ternary catalyzing unit support 7 of ternary catalyzing unit 6, makes natural frequency that the structure of cloth postpone meets whole vent systems higher than motor Coherence resonance point, structural strength meets the material performance requirement of gas exhaust manifold, pressurized machine support and ternary catalyzing unit support simultaneously.In concrete mode of execution, pressurized machine support 4 and ternary catalyzing unit support 7 can be selected the metallic material of rigidity etc., and make as shown in the figure strip or other shape.Pressurized machine support 4 can respectively have a strong point at upper and lower end; As shown in the figure, in the present embodiment, the upper strong point of pressurized machine support 4 is upper by an outlet(discharge) flange (connecting one of adpting flange 5 of gas exhaust manifold 2 and turbosupercharger 3) that is bolted to gas exhaust manifold 2, and lower fulcrum also can be supported on respectively (see figure 4) on cylinder body by two immovable points.Ternary catalyzing unit 6 bottoms in figure provide support (see figure 4) by the connection of ternary catalyzing unit support 7 and cylinder body.Can understand, in other optional mode of execution, also can otherwise fix pressurized machine support 4 and ternary catalyzing unit support 7.
Fig. 2 and 3 schematically shows according to the circulation style of the air-flow of pressurized machine in turbosupercharged engine vent systems of the present invention.
In Fig. 2, reference character 31 represents the pressure side of turbosupercharger 3, and 32 represent the whirlpool end of turbosupercharger 3, and arrow A represents the airflow direction of the fresh air of not supercharging, arrow B represents the airflow direction of the fresh air after compressed, and C represents the waste gas streams direction by pressurized machine.Those skilled in the art can understand, exhaust from the gas exhaust manifold of motor promotes to form exhaust stream C after turbine rotation at whirlpool end, turbine drives the pinch roller rotation of pressure side to make the fresh air stream A of not supercharging compressed from pressure side enters, and the air-flow B after compression discharges from the outlet of pressurized machine pressure side.
In Fig. 3, reference character D represents the waste gas that gas exhaust manifold 2 is discharged.As can be seen from the figure, enter from the whirlpool end of pressurized machine 3 from the waste gas streams D of gas exhaust manifold 2, and discharge air-flow C after the turbine that promotes turbosupercharger 3 whirlpool ends.Visible, how mode and pressurized machine that Fig. 3 illustrates in greater detail the concrete exhaust outflow of vent systems carry out supercharging to fresh air under this exhaust mode.Waste gas streams D after engine combustion is entered respectively the exhaust passage of gas exhaust manifold 2 by the air outlet flue of engine cylinder cover.After the exhaust passage of gas exhaust manifold is converged, exhaust-gas flow is discharged according to the trend of gas exhaust manifold 2 upward from substantially horizontal, enters pressurized machine 3.After waste gas streams D promotes the turbine of pressurized machine 3, waste gas is discharged air-flow C by the wet shell end in right side, and the adpting flange by pressurized machine 3 and ternary catalyzing unit 6 is also discharged in ternary catalyzing unit 6; The fresh air of pressurized machine stream A is not entered by the entrance of the pressure side of pressurized machine 3, the fresh air stream B after supercharging by the pinch roller outlet side of pressurized machine 3 from lower discharge.
Fig. 4 schematically shows according to immovable point and the supporting way of the pressurized machine support of the vent systems of turbosupercharged engine of the present invention and ternary catalyzing unit support.From figure, can more clearly find out that turbosupercharger 3 is arranged on the top of the even whole cylinder body of gas exhaust manifold 2, make ternary catalyzing unit 6 there is arrangement space more fully, can meet the automobile and the motor emission request that day by day improve.The upper end 41 of pressurized machine support 4 is fixed on adpting flange 5, and lower end 42 is fixed on cylinder body, and supporting way is that bolt connects support.The immovable point of ternary catalyzing unit support 7 lower ends is on cylinder body, and supporting way also supports for bolt connects.Pressurized machine support 4 and ternary catalyzing unit support 7 are played a supporting role to whole vent systems, can reduce the active force of whole system to gas exhaust manifold 2 and cylinder cap junction surface.
Obviously, those of ordinary skill in the art can lay out compact practical turbosupercharged engine with engine exhaust system of the present invention.
If the front description of with reference to the accompanying drawings the preferred embodiment of the present invention being carried out is only exemplary and explanat; Those skilled in the art also can be equal to or the flexible or remodeling of similar type the preferred embodiment of the present invention under teaching herein, and these flexible or remodeling also will fall in the protection domain being covered by claims of the present invention.
Claims (10)
1. a turbosupercharged engine vent systems, its turbosupercharger is arranged on the exhaust side of motor and is connected to the outlet of the gas exhaust manifold of described motor, and bring out mouth in the whirlpool of described turbosupercharger and be connected with ternary catalyzing unit,
It is characterized in that, described turbosupercharger is positioned at the top of the gas exhaust manifold of described motor.
2. vent systems as claimed in claim 1, wherein, the natural frequency of the whole vent systems of described motor is higher than the point of resonance of described motor.
3. vent systems as claimed in claim 1, wherein, the carrier inlet of described ternary catalyzing unit brings out mouth near the whirlpool of described turbosupercharger.
4. vent systems as claimed in claim 1, wherein, the outlet of described gas exhaust manifold is connected with described pressurized machine by double-screw bolt upward and by adpting flange.
5. vent systems as claimed in claim 1, wherein, described gas exhaust manifold is connected with the cylinder cap of described motor by bolt.
6. vent systems as claimed in claim 1, wherein, the whirlpool of described pressurized machine bring out mouthful and described ternary catalyzing unit by flange by Stud connection.
7. vent systems as claimed in claim 1, wherein, described pressurized machine is by pressurized machine stent support, and the upper strong point of described pressurized machine support is fixed on the outlet(discharge) flange of described gas exhaust manifold, and lower support point is fixed on the cylinder body of described motor.
8. vent systems as claimed in claim 1, wherein, described ternary catalyzing unit is by ternary catalyzing unit stent support, and the lower end of described ternary catalyzing unit is supported on the cylinder body of described motor.
9. a turbosupercharged engine, is characterized in that, described motor has the vent systems as described in any one in aforementioned claim 1 to 8.
10. an automobile, is characterized in that, described automobile comprises motor as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117002.4A CN104100345A (en) | 2013-04-07 | 2013-04-07 | Exhaust system as well as engine and automobile comprising exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117002.4A CN104100345A (en) | 2013-04-07 | 2013-04-07 | Exhaust system as well as engine and automobile comprising exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104100345A true CN104100345A (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310117002.4A Pending CN104100345A (en) | 2013-04-07 | 2013-04-07 | Exhaust system as well as engine and automobile comprising exhaust system |
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| CN (1) | CN104100345A (en) |
Citations (10)
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|---|---|---|---|---|
| JPH0658142A (en) * | 1992-08-04 | 1994-03-01 | Yanmar Diesel Engine Co Ltd | Exhaust gas manifold structure for dynamic pressure supercharged engine |
| JPH09324643A (en) * | 1996-06-10 | 1997-12-16 | Yanmar Diesel Engine Co Ltd | Exhaust system structure of internal combustion engine |
| DE19625990A1 (en) * | 1996-06-28 | 1998-01-02 | Daimler Benz Ag | Arrangement of exhaust gas turbocharger and exhaust manifold on an internal combustion engine |
| EP1628014A1 (en) * | 2004-08-19 | 2006-02-22 | Perkins Engines Company Limited | Exhaust manifold arrangement |
| CN2835585Y (en) * | 2005-11-11 | 2006-11-08 | 潍柴动力股份有限公司 | Diesel engine for ship |
| CN101302961A (en) * | 2007-05-10 | 2008-11-12 | 中国第一汽车集团公司 | Natural gas engine |
| CN201896686U (en) * | 2010-11-30 | 2011-07-13 | 天津雷沃动力股份有限公司 | Compact diesel engine |
| CN202300606U (en) * | 2011-08-30 | 2012-07-04 | 沈阳斯瓦特汽车零部件有限公司 | Engine hot end assembly |
| CN203248235U (en) * | 2013-04-07 | 2013-10-23 | 上海通用汽车有限公司 | Exhaust system, engine comprising exhaust system and automobile comprising exhaust system |
| CN103726925A (en) * | 2012-10-10 | 2014-04-16 | 重庆长安汽车股份有限公司 | Automobile engine and arrangement structure of turbocharger |
-
2013
- 2013-04-07 CN CN201310117002.4A patent/CN104100345A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658142A (en) * | 1992-08-04 | 1994-03-01 | Yanmar Diesel Engine Co Ltd | Exhaust gas manifold structure for dynamic pressure supercharged engine |
| JPH09324643A (en) * | 1996-06-10 | 1997-12-16 | Yanmar Diesel Engine Co Ltd | Exhaust system structure of internal combustion engine |
| DE19625990A1 (en) * | 1996-06-28 | 1998-01-02 | Daimler Benz Ag | Arrangement of exhaust gas turbocharger and exhaust manifold on an internal combustion engine |
| EP1628014A1 (en) * | 2004-08-19 | 2006-02-22 | Perkins Engines Company Limited | Exhaust manifold arrangement |
| CN2835585Y (en) * | 2005-11-11 | 2006-11-08 | 潍柴动力股份有限公司 | Diesel engine for ship |
| CN101302961A (en) * | 2007-05-10 | 2008-11-12 | 中国第一汽车集团公司 | Natural gas engine |
| CN201896686U (en) * | 2010-11-30 | 2011-07-13 | 天津雷沃动力股份有限公司 | Compact diesel engine |
| CN202300606U (en) * | 2011-08-30 | 2012-07-04 | 沈阳斯瓦特汽车零部件有限公司 | Engine hot end assembly |
| CN103726925A (en) * | 2012-10-10 | 2014-04-16 | 重庆长安汽车股份有限公司 | Automobile engine and arrangement structure of turbocharger |
| CN203248235U (en) * | 2013-04-07 | 2013-10-23 | 上海通用汽车有限公司 | Exhaust system, engine comprising exhaust system and automobile comprising exhaust system |
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Application publication date: 20141015 |