CN112539100B - Engine and turbocharger - Google Patents
Engine and turbocharger Download PDFInfo
- Publication number
- CN112539100B CN112539100B CN202011360067.8A CN202011360067A CN112539100B CN 112539100 B CN112539100 B CN 112539100B CN 202011360067 A CN202011360067 A CN 202011360067A CN 112539100 B CN112539100 B CN 112539100B
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- urea
- turbine
- nozzle
- impeller
- mixer
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 167
- 239000004202 carbamide Substances 0.000 claims abstract description 167
- 239000002912 waste gas Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 238000002425 crystallisation Methods 0.000 abstract description 10
- 230000008025 crystallization Effects 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 7
- 230000008676 import Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1486—Means to prevent the substance from freezing
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Supercharger (AREA)
Abstract
The invention discloses an engine and a turbocharger, wherein the turbocharger comprises a volute, a urea nozzle, a urea mixer and a turbine, and the turbine, the urea mixer and the urea nozzle are arranged in the volute. The urea mixer is arranged at the air outlet end of the turbine, so that the mixing of the urea and the high-temperature waste gas is carried out at the air outlet end of the turbine. The temperature of waste gas is higher than the temperature of waste gas at the SCR import department at the end of giving vent to anger of turbine, the influence of temperature to waste gas and urea mixture has been reduced, urea can evaporate fast after spraying on the urea mixer, effectively restrain the urea crystallization, more importantly, the turbine drives the synchronous rotation of urea mixer, the rotatory centrifugal force that produces of impeller high speed of urea mixer, will spray urea mixer surface urea and get rid of the high temperature waste gas through the high-speed rotation behind the turbine with higher speed, strengthen the mixing of urea and high temperature waste gas, be favorable to improving the homogeneity that urea and high temperature waste gas mix, further restrain the urea crystallization.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine and a turbocharger.
Background
Among the prior art, the urea blender sets up the import department at SCR, and the urea sprayer can spray urea to the urea blender, and partly urea can be fast in urea blender surface evaporation, and another part urea can be got rid of during high temperature waste gas owing to receive centrifugal force, gets into SCR's catalyst converter after mixing with high temperature waste gas and carries out chemical reaction.
Because the pipeline between the outlet end of the turbine of the supercharger and the inlet of the SCR is long, high-temperature waste gas enters the SCR from the supercharger and has heat loss, the temperature of the waste gas entering the SCR is lower than that of the waste gas at the outlet of the turbine of the supercharger, the urea injection quantity is limited, the mixing efficiency of the waste gas and the urea at local working condition points is influenced, urea crystallization is easy to occur, and the difficulty in controlling the emission of NOx is increased.
Therefore, how to improve the uniformity of mixing the exhaust gas and the urea and reduce the risk of urea crystallization is an urgent technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a turbocharger to improve the uniformity of mixing of exhaust gas and urea and reduce the risk of urea crystallization. The invention also provides an engine.
In order to achieve the purpose, the invention provides the following technical scheme:
a turbocharger comprising a volute, a urea nozzle, and a turbine wheel, the turbine wheel and the urea nozzle being mounted within the volute,
the urea mixer is arranged at the air outlet end of the turbine and synchronously rotates along with the turbine, the urea nozzle can spray urea to the urea mixer,
the urea mixer includes:
an impeller;
the first end of the connecting shaft is connected with the turbine, the impeller is installed at the second end of the connecting shaft, and the connecting shaft and the turbine are coaxially arranged.
Preferably, in the above turbocharger, the length of the connecting shaft is 0 to 3 times the diameter of the turbine.
Preferably, in the above turbocharger, the diameter of the impeller is 0.01 to 0.95 times the diameter of the turbine.
Preferably, in the above turbocharger, the urea nozzle is a linear nozzle, the urea nozzle is disposed along an axis of the turbine, one end of the urea nozzle in the length direction is connected to the volute, the other end of the urea nozzle in the length direction is provided with an injection hole, an included angle between the injection direction of the urea nozzle and the axis direction of the turbine is-90-90 °, and the injection direction of the urea nozzle faces the impeller of the urea mixer.
Preferably, in the above turbocharger, the urea nozzle is a linear nozzle, a length extending direction of the urea nozzle is perpendicular to an axis of the turbine, one end of the urea nozzle in the length direction is connected to the volute, the other end of the urea nozzle in the length direction is a closed end, and a spray hole facing the impeller is formed in a side wall of the urea nozzle facing the impeller and corresponding to the impeller.
Preferably, in the above turbocharger, the injection hole of the urea nozzle is located at a distance of 0.01 to 1.2 times the diameter of the turbine from the axis of the urea mixer.
Preferably, in the above turbocharger, the impeller is a centrifugal impeller.
Preferably, in the above turbocharger, the second end of the connecting shaft is threadedly connected to the turbine,
the second end of connecting axle is provided with the external screw thread, the end of giving vent to anger of turbine be provided with external screw thread complex screw hole.
Preferably, in the turbocharger described above, the second end of the connecting shaft is welded to the turbine.
An engine comprising a turbocharger, the turbocharger being as described in any one of the above aspects.
According to the technical scheme, the turbocharger provided by the invention comprises a volute, a urea nozzle, a urea mixer and a turbine, wherein the turbine, the urea mixer and the urea nozzle are installed in the volute. The scheme arranges the urea mixer at the air outlet end of the turbine so that the mixing of urea and high-temperature waste gas occurs at the air outlet end of the turbine. The temperature of waste gas end of giving vent to anger at the turbine is higher than the temperature of waste gas in the SCR import department, the influence of temperature to waste gas and urea mixture has been reduced, urea can the rapid evaporation after spraying on the urea mixer, effectively restrain the urea crystallization, more importantly, the turbine drives the synchronous rotation of urea mixer, the high-speed rotatory centrifugal force that produces of impeller of urea mixer, to spray urea mixer surface urea get rid of with higher speed behind the turbine in the high-temperature waste gas of high-speed rotation, strengthen the mixture of urea and high temperature waste gas, be favorable to improving the homogeneity that urea and high temperature waste gas mix, further restrain the urea crystallization.
The scheme also discloses an engine which comprises a turbocharger, wherein the turbocharger is the turbocharger recorded in any scheme. Since the turbocharger has the technical effects, the engine with the turbocharger also has the same technical effects, and the details are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a turbocharger provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a urea nozzle according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a urea nozzle according to a second embodiment of the present invention.
Wherein,
1. urea nozzle, 2, turbine, 3, urea blender, 31, impeller, 32, connecting axle.
Detailed Description
The invention discloses a turbocharger, which aims to improve the mixing uniformity of waste gas and urea and reduce the risk of urea crystallization. The invention also discloses an engine.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-3.
The invention discloses a turbocharger which comprises a volute, a urea nozzle 1 and a turbine 2, wherein the turbine 2 and the urea nozzle 1 are installed in the volute.
The turbocharger disclosed by the scheme further comprises a urea mixer 3, the urea mixer 3 is arranged at the air outlet end of the turbine 2 and can synchronously rotate along with the turbine 2, and the urea nozzle 1 can spray urea to the urea mixer 3.
In a particular embodiment of the solution, as shown in fig. 1, the urea mixer 3 comprises an impeller 31 and a connecting shaft 32, the connecting shaft 32 being arranged coaxially with the turbine 2. As shown in fig. 1, a first end of the connecting shaft 32 is connected to the turbine 2, and a second end of the connecting shaft 32 is mounted with the impeller 31.
According to the turbocharger disclosed by the scheme, the urea mixer 3 is arranged at the air outlet end of the turbine 2, so that the mixing of urea and high-temperature waste gas occurs at the air outlet end of the turbine 2. The temperature of waste gas is higher than the temperature of waste gas at the SCR import department at the end of giving vent to anger of turbine 2, the influence of temperature to waste gas and urea mixture has been reduced, urea can the rapid evaporation after spraying urea mixer 3, effectively restrain the urea crystallization, more importantly, turbine 2 drives urea mixer 3 synchronous revolution, the rotatory centrifugal force that produces of impeller 31 high speed of urea mixer 3, to spray 3 surface urea of urea mixer and get rid of the high temperature waste gas through turbine 2 back high speed rotation with higher speed, strengthen the mixing of urea and high temperature waste gas, be favorable to improving the homogeneity that urea and high temperature waste gas mix, further restrain the urea crystallization.
The scheme sets up urea mixer 3 at the end of giving vent to anger of turbine 2, and the distance from the gas outlet is closer, has reduced pipeline heat dissipation loss for the lower exhaust temperature's of lower load environment can be used to carry out the urea injection to the turbo charger of this scheme disclosure, reduces urea injection temperature, improves urea conversion efficiency.
According to the scheme, the urea nozzle 1 is integrally designed on the volute, the spraying position is closer to the exhaust side with high temperature, and the starting spraying temperature of urea is favorably reduced.
In a particular embodiment of the solution, the length of the connecting shaft 32 is 0-3 times the diameter of the turbine 2. The length of the connecting shaft 32 affects the distance between the impeller 31 (mixing impeller) and the turbine 2 (working turbine), and the interference of the mixing impeller to the working impeller is reduced.
In order to further optimize the technical scheme, the diameter of the impeller 31 in the scheme is 0.01-0.95 times of the diameter of the turbine 2. The different diameters of the impellers 31 will cause disturbances in the gas flow of the turbine 2 and will also influence the proportion of urea that falls on the turbine 2. The larger the diameter of the impeller 31 is, the more disturbing the turbine 2 is, but the smaller the diameter of the impeller 31 is, the smaller the amount of urea falling on the turbine 2 is. The diameter of the impeller 31 is smaller than that of the turbine 2, and the diameter of the impeller 31 is 0.01 to 0.95 times the diameter of the turbine 2.
As shown in fig. 1, the urea nozzle 1 is a straight nozzle.
In one embodiment of the present solution, as shown in fig. 2, the urea nozzle 1 is arranged along the axis of the turbine 2, one end of the urea nozzle 1 in the length direction is connected to the volute, and the other end of the urea nozzle 1 in the length direction is provided with an injection hole.
In order to improve the injection effect of the urea nozzle 1, the included angle between the injection direction of the urea nozzle 1 and the axial direction of the turbine 2 is-90 degrees. It should be noted here that when an included angle between the injection direction of the urea nozzle 1 and the axial direction of the turbine 2 is-90 ° to 0 °, the urea nozzle 1 is disposed below the urea mixer 3, the urea nozzle 1 injects from bottom to top, when an included angle between the injection direction of the urea nozzle 1 and the axial direction of the turbine 2 is 0 ° to 90 °, the urea nozzle 1 is disposed above the urea mixer 3, and the urea nozzle 1 injects from top to bottom.
The injection direction of the urea nozzle 1 is always directed toward the impeller 31 of the urea mixer 3 regardless of whether the urea nozzle 1 is disposed above the turbine 2 or below the turbine 2.
In this embodiment, the number of the injection holes is plural and is arranged annularly, and the number of the injection holes may be one ring or plural rings.
In another embodiment of the present disclosure, as shown in fig. 3, a length extending direction of the urea nozzle 1 is perpendicular to an axis of the turbine 2, one end of the urea nozzle 1 in the length direction is connected to the volute, the other end of the urea nozzle 1 in the length direction is a closed end, and a side wall of the urea nozzle 1 facing the impeller 31 and corresponding to the impeller 31 is provided with an injection hole facing the impeller 31.
In this embodiment, a single row or multiple rows of injection holes are arranged on the side wall of the urea nozzle 1, and the arrangement direction of each row of injection holes is perpendicular to the axis of the turbine 2.
The shape of the injection hole of the urea injection nozzle 1 may be circular, oval, polygonal, pentagonal, or other shapes that can achieve urea injection.
The urea nozzle 1 may be installed on the front surface of the urea mixer 3, or may be installed on the side surface of the urea mixer 3.
In a particular embodiment of the solution, the spray orifice of the urea nozzle 1 is at a distance from the axis of the urea mixer 3 of 0.01-1.2 times the diameter of the turbine 2. The high-temperature exhaust gas flows through the impeller 31 and the connecting shaft 32 at a high speed, the sprayed urea is carried by the high-temperature exhaust gas, a part of the urea falls on the urea mixer 3, and the distance between the connecting shaft 32 and the turbine 2 can control the mixed gas of the urea and the high-temperature exhaust gas to fall on the turbine 2.
In order to improve the urea dispersion effect of the impeller 31, the impeller 31 is a centrifugal impeller in this embodiment.
As shown in fig. 1, the shape of the impeller 31 in this embodiment is the same as the shape of the turbine 2.
The impeller 31 is not limited to a centrifugal impeller, and may be another type of impeller 31.
In the scheme, the urea mixer 3 and the turbine 2 can be connected in a detachable connection mode or a fixed connection mode.
When the urea mixer 3 and the turbine 2 are connected in a detachable connection mode, the connection mode of bolt connection is selected for the scheme. Specifically, the second end of the connecting shaft 32 is provided with an external thread, the air outlet end of the turbine 2 is provided with a threaded hole matched with the external thread, and the external thread section of the second end of the connecting shaft 32 is matched with the threaded hole of the turbine 2, so that the connecting shaft 32 is connected with the turbine 2.
When urea mixer 3 adopts fixed connection's mode to connect, this scheme chose for use welded connection's connected mode. The welding connection is simple in operation and low in cost, and the connection difficulty of the urea mixer 3 and the turbine 2 is reduced to a certain extent.
The scheme also discloses an engine which comprises a turbocharger, wherein the turbocharger is the turbocharger recorded in any one scheme.
Since the turbocharger has the technical effects, the engine with the turbocharger also has the same technical effects, and the details are not repeated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A turbocharger, characterized by comprising a volute, a urea nozzle (1) and a turbine (2), the turbine (2) and the urea nozzle (1) being mounted inside the volute,
the urea mixer (3) is arranged at the air outlet end of the turbine (2) and synchronously rotates along with the turbine (2), the urea nozzle (1) can spray urea to the urea mixer (3),
the urea mixer (3) comprises:
the impeller (31) of the urea mixer (3) rotates at a high speed to generate centrifugal force, urea sprayed to the surface of the urea mixer (3) is accelerated and thrown into high-temperature waste gas which rotates at a high speed after passing through the turbine (2), and mixing of the urea and the high-temperature waste gas is enhanced;
a connecting shaft (32), a first end of the connecting shaft (32) is connected with the turbine (2), a second end of the connecting shaft (32) is provided with the impeller (31), and the connecting shaft (32) and the turbine (2) are coaxially arranged;
the urea nozzle (1) is a linear nozzle, the urea nozzle (1) is arranged along the axis of the turbine (2), one end of the urea nozzle (1) in the length direction is connected with the volute, the other end of the urea nozzle (1) in the length direction is provided with an injection hole, the included angle between the injection direction of the urea nozzle (1) and the axis direction of the turbine (2) is-90 degrees, the injection direction of the urea nozzle (1) faces the impeller (31) of the urea mixer (3), or the urea nozzle (1) is a linear nozzle, the length extension direction of the urea nozzle (1) is perpendicular to the axis of the turbine (2), one end of the urea nozzle (1) in the length direction is connected with the volute, and the other end of the urea nozzle (1) in the length direction is a closed end, the urea nozzle (1) faces the impeller (31) and is provided with a spraying hole facing the impeller (31) on the side wall corresponding to the impeller (31).
2. A turbocharger according to claim 1, wherein the connecting shaft (32) has a length of 0-3 times the diameter of the turbine wheel (2).
3. A turbocharger according to claim 1, wherein the impeller (31) has a diameter of 0.01-0.95 times the diameter of the turbine wheel (2).
4. Turbocharger according to claim 1, wherein the injection holes of the urea nozzle (1) are at a distance from the axis of the urea mixer (3) of 0.01-1.2 times the diameter of the turbine (2).
5. A turbocharger according to claim 1, wherein the impeller (31) is a centrifugal impeller.
6. The turbocharger according to claim 1, wherein a second end of the connecting shaft (32) is threadedly connected with the turbine (2),
the second end of connecting axle (32) is provided with the external screw thread, the end of giving vent to anger of turbine (2) be provided with external screw thread complex screw hole.
7. A turbocharger according to claim 1, wherein the second end of the connecting shaft (32) is welded to the turbine wheel (2).
8. An engine comprising a turbocharger according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360067.8A CN112539100B (en) | 2020-11-27 | 2020-11-27 | Engine and turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360067.8A CN112539100B (en) | 2020-11-27 | 2020-11-27 | Engine and turbocharger |
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| CN112539100A CN112539100A (en) | 2021-03-23 |
| CN112539100B true CN112539100B (en) | 2022-07-15 |
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| US11732629B1 (en) | 2022-05-10 | 2023-08-22 | Caterpillar Inc. | System, apparatus, and method for diesel exhaust fluid (DEF) dosing |
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| AT500737A2 (en) * | 2005-12-06 | 2006-03-15 | Avl List Gmbh | EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE |
| CN102505979A (en) * | 2011-11-14 | 2012-06-20 | 潍柴动力股份有限公司 | Connection device and integrated SCR (selective catalytic reduction) catalytic muffler |
| CN111075520A (en) * | 2018-10-18 | 2020-04-28 | 福特全球技术公司 | Internal combustion engine with an exhaust gas aftertreatment system requiring a reducing agent and method for enriching an exhaust gas with a reducing agent |
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| KR950012137B1 (en) * | 1989-02-02 | 1995-10-14 | 닛뽄 쇼크바이 카가꾸 고오교오 가부시기가이샤 | Method of removing nitrogen oxides in exhaust gases from a diesel engine |
| SE516624C2 (en) * | 2000-06-14 | 2002-02-05 | Volvo Lastvagnar Ab | Apparatus for injecting urea into a turbine housing in an exhaust system |
| JP2012503731A (en) * | 2008-09-23 | 2012-02-09 | フローデザイン ウインド タービン コーポレイション | Wind turbine with mixer and discharger |
| JP5630024B2 (en) * | 2010-01-25 | 2014-11-26 | いすゞ自動車株式会社 | Diesel engine exhaust purification device and exhaust purification method |
| CN105201604B (en) * | 2015-10-27 | 2018-05-29 | 南京依柯卡特排放技术股份有限公司 | A kind of SCR system urea mixer |
| SE540234C2 (en) * | 2016-09-30 | 2018-05-08 | Scania Cv Ab | Multiple bank exhaust system for a turbocharged internal combustion engine comprising reductant supply system |
| DE102017106164A1 (en) * | 2017-03-22 | 2018-09-27 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | turbocharger |
| CN207187509U (en) * | 2017-08-30 | 2018-04-06 | 中国新时代国际工程公司 | A kind of self-operated type swirl injection mixing arrangement |
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2020
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT500737A2 (en) * | 2005-12-06 | 2006-03-15 | Avl List Gmbh | EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE |
| CN102505979A (en) * | 2011-11-14 | 2012-06-20 | 潍柴动力股份有限公司 | Connection device and integrated SCR (selective catalytic reduction) catalytic muffler |
| CN111075520A (en) * | 2018-10-18 | 2020-04-28 | 福特全球技术公司 | Internal combustion engine with an exhaust gas aftertreatment system requiring a reducing agent and method for enriching an exhaust gas with a reducing agent |
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| CN112539100A (en) | 2021-03-23 |
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