CN202165151U - Exhaust manifold specially used by automobile two-stage supercharged engine - Google Patents
Exhaust manifold specially used by automobile two-stage supercharged engine Download PDFInfo
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- CN202165151U CN202165151U CN2011202281088U CN201120228108U CN202165151U CN 202165151 U CN202165151 U CN 202165151U CN 2011202281088 U CN2011202281088 U CN 2011202281088U CN 201120228108 U CN201120228108 U CN 201120228108U CN 202165151 U CN202165151 U CN 202165151U
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- exhaust manifold
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- anger
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- 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
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Abstract
The utility model discloses an exhaust manifold specially used by an automobile two-stage supercharged engine. The exhaust manifold comprises an exhaust main pipe and exhaust branch pipes, wherein a gas outlet flange is fixedly connected to the opened end of the exhaust main pipe; gas inlet flanges are fixedly connected to the opened ends of the exhaust branch pipes; a large waste gas outlet and a small waste gas outlet are formed on a flange plate surface of the gas outlet flange at an interval, both face to the same direction, and are arranged in a manner perpendicular to the exhaust main pipe and the exhaust branch pipes; an EGR (Exhaust Gas Recirculation) gas inlet channel is cast on the exhaust manifold; and an EGR gas outlet flange corresponding to the upper side of the exhaust main pipe is further arranged on the exhaust manifold, and is arranged in a manner perpendicular to the gas inlet flanges and parallel to the gas outlet flange. The exhaust manifold provided by the utility model has the characteristics of simple structure, easiness in processing, convenience in mounting, high reliability, low manufacturing cost, small occupied space, and the capability of meeting a finished automobile arrangement requirement, thereby realizing the effective matching and the favorable mounting effect of the engine and a two-stage waste gas supercharger. The utility model is linked between the two-stage waste gas supercharger and a cylinder cover of the automobile engine, and is served as the waste gas exhaust channel.
Description
Technical field
The utility model relates to a kind of motor car engine accessory, the special-purpose gas exhaust manifold of specifically a kind of automobile two-step supercharging motor.
Background technique
The automobile engine to exhaust manifold is the passage that engine exhaust is discharged, and its rationality design will directly have influence on performance, discharging and the noise of motor, and have influence on the lift-launch of motor on car load and the layout of car load vent systems.
The gas exhaust manifold of supercharged engine is that the waste gas that each cylinder of motor is discharged is pooled together; Again waste gas is imported the component of turbosupercharger; It bears the rugged environment such as high temperature, high pressure of waste gas, so gas exhaust manifold reliability in use is more even more important to the influence of motor than its performance.
Present stage, some motor car engine producer of Europe adopted the two-stage exhaust-gas turbocharger, adopted gray cast iron, vermicular cast iron, spheroidal graphite cast iron, chlorine-resistant silicon iron or stainless steel material more.After the waste gas that gas exhaust manifold is discharged each cylinder of motor pools together; Need get into high pressure stage exhaust-gas turbocharger and low pressure stage exhaust-gas turbocharger in the two-stage exhaust-gas turbocharger that is attached thereto respectively through two different waste gas outlets; And gas exhaust manifold and the casting of high-voltage booster volute are together, and two different waste gas outlets are cast the upper and lower sides at gas exhaust manifold respectively.From the structure angle, existing exhaust-gas turbocharger gas exhaust manifold exists following not enough:
1. existing gas exhaust manifold pipeline is long, complex structure, and exhaust back pressure is big;
2. casting difficulty, cost is too high;
3. attachment face and mounting hole difficulty of processing are big, and be relatively more difficult with the installation of engine cylinder cover and two-stage exhaust-gas turbocharger, even need adjust the two-stage exhaust-gas turbocharger;
4. adopt the single-stage exhaust-gas turbocharger,, can not make full use of the waste gas ability and drive exhaust-gas turbocharger work, can not effectively improve the efficient of air input of engine by air and motor through a waste gas outlet exhaust;
5. gas exhaust manifold adopts gray cast iron, vermicular cast iron, spheroidal graphite cast iron, chlorine-resistant silicon iron or stainless steel material more; Heatproof is low; Automobile under steam, motor often is in the working state of the conversion that colds and heat succeed each other, hot environment can cause gas exhaust manifold to produce plastic deformation or inefficacy;
6. two of gas exhaust manifold different waste gas outlets are cast the upper and lower sides at gas exhaust manifold respectively; A pressurized machine in the two-stage exhaust-gas turbocharger is arranged must be at the gas exhaust manifold upside; During pressurized machine, the hot environment that around pressurized machine, produces will work the mischief to the component (as: plastic cylinder cover, wire harness, sebific duct etc.) at motor top exhaust flow through top; A pressurized machine in the two-stage exhaust-gas turbocharger is arranged in the gas exhaust manifold upside, makes motor in height increase to some extent, causes to take up room greatly, and the centre-of gravity shift of motor itself can not satisfy the car load arrangement requirement.
The model utility content
The technical problem that the utility model will solve; Provide the special-purpose gas exhaust manifold of a kind of automobile two-step supercharging motor; It has simple in structure, easy processing, easy for installation, reliability is high, cost of production is low, it is little to take up room, satisfy the characteristics of car load arrangement requirement, can realize effective coupling of motor and two-stage exhaust-gas turbocharger and good installation effect.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is:
The special-purpose gas exhaust manifold of a kind of automobile two-step supercharging motor; Comprise exhaust manifold and exhaust branch pipe; The open end of exhaust manifold is fixedly connected with the flange of giving vent to anger; The open end of exhaust branch pipe is fixedly connected with inlet flange, is respectively equipped with the inlet flange mounting hole on give vent to anger flange and the inlet flange, the flange mounting hole of giving vent to anger;
Also be provided with the EGR flange of giving vent to anger corresponding to the upside place of exhaust manifold on the gas exhaust manifold, give vent to anger flange and inlet flange of said EGR is in vertical distribution, and is with the flange of giving vent to anger and is arranged in parallel;
Giving vent to anger is separated by on the flange surface of flange is provided with small one and large one two waste gas outlets, and said two waste gas outlets are towards identical and be in vertical distribution with exhaust branch pipe, exhaust manifold;
Be cast with the exhaust gas recirculation gas-entered passageway on the gas exhaust manifold.
More than be the basic structure of the utility model, this gas exhaust manifold joins in give vent to anger flange place and supercharging starter, and gas exhaust manifold 1 is established with the pressurized machine split; Can make the arrangement of pressurized machine more flexible, the restriction of project organization is not unaffected each other when not receiving gas exhaust manifold and pressurized machine integrated; The two-stage exhaust-gas turbocharger is arranged in the downside of gas exhaust manifold; It is little to take up room, compact structure, and the center of gravity of motor itself is difficult for squinting; Satisfy the spatial requirement that car load is arranged, can realize effective coupling of motor car engine and two-stage exhaust-gas turbocharger and good installation effect.This product easy accessibility also can be different according to the position, and temperature is different, and gas exhaust manifold and pressurized machine are adopted different materials processing, effectively reduces cost.Motor in, slow-speed of revolution when operation; Waste gas is through the EGR (abbreviation of Exhaust Gas Recirculation; Chinese translation is a gas recirculation system) the flange 10 entering gas recirculation systems of giving vent to anger; The cooling back gets into intake manifold, burn once more in the firing chamber, can effectively reduce generation and the discharging of the NOx in the waste gas.
As the qualification of the utility model, said gas exhaust manifold adopts the casting of high nickel cast iron material to form.
The high nickel cast iron material has high-temperature stability (can reach 950 ℃), avoids motor when colding and heat succeed each other the conversion working state, problem such as the gas exhaust manifold plastic deformation that causes because of hot environment or inefficacy.
Another kind as the utility model limits, and the bending part of said exhaust branch pipe, exhaust manifold is taken advantage of a situation and seamlessly transitted.
Exhaust branch pipe, exhaust manifold are taken advantage of a situation in bending part and are seamlessly transitted, and can guarantee that the smooth and easy of exhaust carries out, and reduce the loss of exhaust energy.
As the third qualification of the utility model, the open end end face periphery of the said flange of giving vent to anger is evenly equipped with 3～6 flange mounting holes of giving vent to anger.
Being evenly equipped with of flange mounting hole be beneficial to gas exhaust manifold with the adpting flange of two-stage exhaust-gas turbocharger between connect the purpose that realizes that firm fixation, high reliability connect.
The utility model also has a kind of qualification, is cast with stiffening rib between said exhaust branch pipe.
Exhaust branch pipe through the inlet flange that is separated from each other and on the inlet flange mounting hole link to each other with the cylinder cap of motor car engine because stiffening rib has existence can improve the bearing capacity and the reliability of gas exhaust manifold itself.
During the utility model work; The waste gas of from engine cylinder, discharging, through the inlet flange of gas exhaust manifold, the exhaust branch pipe of flowing through gets in the exhaust manifold; After this converges to together; According to motor different rotating speeds operating mode, get into high pressure stage exhaust-gas turbocharger and low pressure stage exhaust-gas turbocharger in the two-stage exhaust-gas turbocharger that links to each other with the flange of giving vent to anger respectively through big air outlet, little air outlet, get into exhaust treatment systems such as silencing apparatus, tailpipe again; After be discharged in the atmosphere, particularly:
⑴ when the operation of engine low rotation speed; The exhausted air quantity that engine exhaust goes out is few; Waste gas converges to together the back and discharges from the little little air outlet of diameter in gas exhaust manifold, get into two-stage exhaust-gas turbocharger that gas exhaust manifold 1 links to each other in high pressure stage exhaust-gas turbocharger (little pressurized machine), and make it work; Utilize the less turbine circulation area of high pressure stage pressurized machine to realize the good transient response property of diesel engine; Alleviate turbo, improved the low speed torque of motor, improved pick-up of engine;
⑵ when move at the high rotating speed of motor; The exhausted air quantity that engine exhaust goes out is many, and waste gas converges to together the back and discharges from the big big air outlet of diameter in gas exhaust manifold, get into two-stage exhaust-gas turbocharger that gas exhaust manifold 1 links to each other in low pressure stage exhaust-gas turbocharger (pressurized machine greatly); And make it work; Utilize the bigger ventilation area of low pressure stage pressurized machine to realize more air demand, guarantee the high speed performance of motor, improved the efficient of motor;
⑶ when motor moves between the slow-speed of revolution and high rotating speed; After the waste gas that engine exhaust goes out converges to together in gas exhaust manifold 1, discharge simultaneously from the big air outlet that varies in size, little air outlet respectively, get into the two-stage exhaust-gas turbocharger that links to each other with gas exhaust manifold 1; And make it work; Through cooperatively interacting of high pressure stage pressurized machine and low pressure stage pressurized machine, guarantee the stable increase of engine power, and high moment of torsion output is being provided in big speed range.
To sum up visible owing to adopted above-mentioned technological scheme, the utility model compared with prior art, the technological progress that is obtained is: simple in structure, reliability is high; Spatial requirement little, that satisfy the car load layout takes up room; Easy processing, good manufacturability, cost of production is low; Each related components is installed more convenient; Reduce exhaust back pressure, reduce the venting capacity loss; Can make full use of the waste gas ability and drive the work of two-stage exhaust-gas turbocharger, improve air input of engine by air, improve the efficient of motor, improve the low speed torque of motor, improve pick-up of engine etc.The utility model is connected between the cylinder cap of two-stage exhaust-gas turbocharger, motor car engine, as the waste gas discharge route of motor.
The utility model below will combine Figure of description and specific embodiment to do further explain.
Description of drawings
Fig. 1 is the utility model embodiment's an overall structure schematic representation;
Fig. 2 is the worm's eye view of Fig. 1;
Fig. 3 is the structural representation of inlet flange among Fig. 1 and Fig. 2;
Fig. 4 and Fig. 5 are respectively the gas flow schematic representation of the utility model embodiment working state, and arrow is represented gas flow among the figure.
Among the figure: 2-inlet flange, 3-inlet flange mounting hole, 4-exhaust branch pipe, 5-exhaust manifold, the 6-flange of giving vent to anger, the 7-flange mounting hole of giving vent to anger, the big air outlet of 8-, the little air outlet of 9-, the 10-EGR flange of giving vent to anger.
Embodiment
Embodiment
Fig. 1 and shown in Figure 2 be the special-purpose gas exhaust manifold of a kind of automobile two-step supercharging motor, adopt the casting of high nickel cast iron material to form, comprise exhaust manifold 5 and exhaust branch pipe 4.
The open end of exhaust manifold 5 is fixedly connected with the flange 6 of giving vent to anger; The open end of exhaust branch pipe 4 is fixedly connected with inlet flange 2.Give vent to anger and be respectively equipped with inlet flange mounting hole 3 on flange 6 and the inlet flange 2, the flange mounting hole 7 of giving vent to anger.Giving vent to anger is separated by on the flange surface of flange 6 is provided with small one and large one two waste gas outlets 8,9, they towards identical and be in vertical distribution with exhaust branch pipe 4, exhaust manifold 5.
Be cast with the exhaust gas recirculation gas-entered passageway on the gas exhaust manifold.
Also be provided with the EGR flange 10 of giving vent to anger corresponding to the upside place of exhaust manifold 5 on the gas exhaust manifold, this EGR flange 10 of giving vent to anger is in vertical distribution with inlet flange 2, and is with the flange 6 of giving vent to anger and is arranged in parallel.
The bending part of exhaust branch pipe 4, exhaust manifold 5 is taken advantage of a situation and is seamlessly transitted.
The open end end face periphery of flange 6 of giving vent to anger is evenly equipped with 3～6 flange mounting holes 7 of giving vent to anger.
4 of exhaust branch pipes are cast with stiffening rib.
Claims (5)
1. the special-purpose gas exhaust manifold of an automobile two-step supercharging motor; Comprise exhaust manifold and exhaust branch pipe, the open end of exhaust branch pipe is fixedly connected with inlet flange, and inlet flange is provided with the inlet flange mounting hole; Also be provided with the EGR flange of giving vent to anger corresponding to the upside place of exhaust manifold on the gas exhaust manifold; Give vent to anger flange and inlet flange of said EGR is in vertical distribution, and is with the flange of giving vent to anger and is arranged in parallel
It is characterized in that:The open end of exhaust manifold is fixedly connected with the flange of giving vent to anger; The flange of giving vent to anger is provided with the flange mounting hole of giving vent to anger; Giving vent to anger is separated by on the flange surface of flange is provided with small one and large one two waste gas outlets, and said two waste gas outlets are towards identical and be in vertical distribution with exhaust branch pipe, exhaust manifold;
Be cast with the exhaust gas recirculation gas-entered passageway on the gas exhaust manifold.
2. the special-purpose gas exhaust manifold of automobile two-step supercharging motor according to claim 1,
It is characterized in that:Said gas exhaust manifold is a high nickel cast iron material casting.
3. the special-purpose gas exhaust manifold of automobile two-step supercharging motor according to claim 1,
It is characterized in that:The bending part of said exhaust branch pipe, exhaust manifold is taken advantage of a situation and is seamlessly transitted.
4. the special-purpose gas exhaust manifold of automobile two-step supercharging motor according to claim 1,
It is characterized in that:The open end end face periphery of the said flange of giving vent to anger is evenly equipped with 3～6 flange mounting holes of giving vent to anger.
5. the special-purpose gas exhaust manifold of automobile two-step supercharging motor according to claim 1,
It is characterized in that:Be cast with stiffening rib between said exhaust branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202281088U CN202165151U (en) | 2011-06-30 | 2011-06-30 | Exhaust manifold specially used by automobile two-stage supercharged engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202281088U CN202165151U (en) | 2011-06-30 | 2011-06-30 | Exhaust manifold specially used by automobile two-stage supercharged engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165151U true CN202165151U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202281088U Expired - Fee Related CN202165151U (en) | 2011-06-30 | 2011-06-30 | Exhaust manifold specially used by automobile two-stage supercharged engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826700A (en) * | 2019-04-01 | 2019-05-31 | 安徽华菱汽车有限公司 | A kind of exhaust manifold, air inlet system and exhaust system and automobile |
| CN112012820A (en) * | 2020-09-30 | 2020-12-01 | 安徽康明斯动力有限公司 | Diesel engine exhaust manifold assembly |
-
2011
- 2011-06-30 CN CN2011202281088U patent/CN202165151U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826700A (en) * | 2019-04-01 | 2019-05-31 | 安徽华菱汽车有限公司 | A kind of exhaust manifold, air inlet system and exhaust system and automobile |
| CN109826700B (en) * | 2019-04-01 | 2024-01-30 | 安徽华菱汽车有限公司 | Exhaust manifold, air inlet and exhaust system and automobile |
| CN112012820A (en) * | 2020-09-30 | 2020-12-01 | 安徽康明斯动力有限公司 | Diesel engine exhaust manifold assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |