CN103459788A - Exhaust gas temperature reduction device for an engine of construction equipment - Google Patents
Exhaust gas temperature reduction device for an engine of construction equipment Download PDFInfo
- Publication number
- CN103459788A CN103459788A CN2011800698465A CN201180069846A CN103459788A CN 103459788 A CN103459788 A CN 103459788A CN 2011800698465 A CN2011800698465 A CN 2011800698465A CN 201180069846 A CN201180069846 A CN 201180069846A CN 103459788 A CN103459788 A CN 103459788A
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- China
- Prior art keywords
- tail pipe
- diffuser
- guide member
- cooling fan
- exhaust gas
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
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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
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
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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
- F01N2270/00—Mixing air with exhaust gases
- F01N2270/02—Mixing air with exhaust gases for cooling exhaust gases or the apparatus
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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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
Abstract
The invention relates to an exhaust gas temperature reduction device for an engine of construction equipment. The exhaust gas temperature reduction device includes: a cooling fan (3) disposed on a side of an engine room (7) to introduce external air, thereby generating a cooling fan air current (9); a tail pipe (10) including a turbulence flow inlet port (14) and a first guide (13a) for guiding the cooling fan air current (9) into the inside of the engine room, the tail pipe (10) having one end connected to an exhaust gas reduction device (6) and the other end extending to the outside of the engine room (7) to discharge overheated gas discharged during recycling by the exhaust gas reduction device (6) to the outside; and a diffuser (20) including an external air inlet port (24) exposed to the outside of the engine room (7) and a second guide (23a) disposed adjacent to the external air inlet port (24) to guide introduced external air to the inside of the engine room, the diffuser forming a separate space surrounding an outer diameter of the tail pipe (10) to prevent the diffuser from directly contacting the tail pipe (10).
Description
Technical field
The present invention relates to a kind of device of the exhaust gas temperature for reducing the construction plant motor.More specifically, the present invention relates to a kind of improved cooling device of the waste gas for the construction plant motor, wherein, when at motor, the waste gas that preferably produces in the combustion process of the smoke abatement apparatus of the diesel engine of construction plant during through diffuser and tail pipe, waste gas mixes with cooling fan air stream and outside air, so that low temperature waste gas can be discharged into the engine compartment outside.
Background technique
Generally, in the diesel engine of using mineral fuel or in using the hybrid type construction plant of mineral fuel and electric energy, usually in diesel engine or hybrid type construction plant, make the smoke abatement apparatus of waste gas regeneration and reprocessing.
Particularly, the particulate matter (PM) be included in from the waste gas of construction plant diesel engine emissions provides environment and air-polluting reason.In addition, in the situation that particulate matter is inhaled into human lung's tissue or respiratory system, they have pernicious impact to human body.For this reason, all strengthened the regulation of particulate emissions all over the world.
In order to solve such environmental pollution problem, the diesel particulate filter (DPF) as smoke abatement apparatus has been proposed, it is caught and processing is discharged into airborne particulate matter, to prevent that particulate emissions that diesel vehicle etc. produces is in air.Diesel particulate filter (DPF) is carried out the process of the cigarette that filters of burnouting repeatedly, or repeatedly to carry out be not to burnout the cigarette that filters but the process of shaking filter, makes filter regeneration when being hunted down, then reaching given time point at particulate matter.But the problem that this conventional diesel engine particulate filter (DPF) brings is, the waste gas of discharging from motor by smoke abatement apparatus is discharged into outside together with high temperature air stream, but this fire hazard or burn.
In order to address the above problem, researched and developed the technology that reduces exhaust gas temperature by means of the tail pipe that is connected to smoke abatement apparatus.For example, as the example of the waste gas cooling device for the construction plant motor, disclose on August 2nd, 2010 disclosed name be called the open No.2010-86525 of Korean Patent special permission of " for reducing the device of the overheated gas temperature of engine compartment ".
Fig. 1 illustrates to be arranged on the schematic diagram of the state of engine compartment according to prior art for traditional waste gas cooling device of construction plant motor.As shown in Figure 1, for traditional waste gas cooling device of construction plant motor, comprise: through hole 2, it is formed on a side of engine compartment 7 in the mode penetrated; Tail pipe 1, the one end is connected to smoke abatement apparatus 6, and the other end extends to engine compartment 7 outsides through through hole 2, and the overheated gas that tail pipe 1 is configured to discharge in the regenerative process at smoke abatement apparatus 6 is discharged into outside; Cooling fan 3, it is arranged on a side of engine compartment 7, and is configured to produce cooling fan air stream 9 by the inflow of outside air; And diffuser 4, it engages with through hole 2, and be configured to the external peripheral surface around tail pipe 1, to there is the space be limited between tail pipe 1 and diffuser 4, prevent that thus diffuser from directly contacting tail pipe 1, and prevent that after the cooling fan air stream sucks the cooling fan air stream from disperseing, to reduce the temperature of overheated gas.
When through the waste gas of smoke abatement apparatus 5 during mainly by tail pipe 1 discharge, this technology can make the waste gas of smoke abatement apparatus 5 and the cooling fan air stream 9 that produced by cooling fan 3 is mixed with each other in tail pipe 1, so that cross the temperature of hot waste gas, can reduce.
But, the problem that tradition waste gas cooling device runs into is, because the air stream 9 produced by cooling fan 3 is directly by the external peripheral surface of tail pipe 1, or waste gas and air stream 9 can not effectively be mixed with each other in tail pipe 1, so be discharged into the temperature of the waste gas of outside reaches a high temperature by tail pipe 1, for example, about 500 ℃.
As a result, this high-temp waste gas causes the overheated of diffuser 4.In addition, although high-temp waste gas does not directly contact tail pipe 1, but the problem occurred be by with diffuser 4 contact fire hazard or personal injury.
Summary of the invention
Technical problem
Therefore, the present invention is intended to solve the problems referred to above that occur in prior art, and the device that the purpose of this invention is to provide a kind of exhaust gas temperature for reducing the construction plant motor, wherein, outside air and the cooling fan air stream produced by cooling fan are mixed with each other in diffuser, with turbulization, make tail pipe structurally cooling, in addition, turbulent flow is introduced in tail pipe effectively, to reduce the temperature of the waste gas that has passed through smoke abatement apparatus in tail pipe.
Technological scheme
In order to realize above purpose, according to the embodiment of the present invention, a kind of device of the exhaust gas temperature for reducing the construction plant motor is provided, it comprises diesel engine and smoke abatement apparatus, described smoke abatement apparatus is connected on the outlet pipe of diesel engine, to prevent the discharge of particulate matter, described device comprises:
Cooling fan, it is arranged on a side of engine compartment, and is configured to produce the cooling fan air stream by the inflow of outside air;
Tail pipe, it comprises turbulent flow entrance and the first guide member, described the first guide member is configured to the cooling fan air stream is directed in device, an end of tail pipe is connected to smoke abatement apparatus, and the other end extends to the engine compartment outside, with the overheated gas that will discharge in the regenerative process of smoke abatement apparatus, is discharged into outside; And
Diffuser, it comprises outside air entrance and the second guide member, described outside air entrance is exposed to the engine compartment outside, the contiguous outside air entrance of described the second guide member location, with the outside air that will introduce in engine compartment, direct in device, diffuser is configured to the external peripheral surface around tail pipe, to have the space be limited between tail pipe and diffuser, thus, prevent that diffuser from directly contacting tail pipe.
According to preferred embodiment, with the angular spacing of 45 °, a plurality of turbulent flow entrances are set along the circumference of tail pipe, and form a plurality of outside air entrances along the inner circumferential surface of diffuser, with a plurality of turbulent flow entrances of correspondence.
Beneficial effect
As the cooling device of the waste gas for the construction plant motor according to the embodiment of the present invention of above configuration has the following advantages.Cold outside air in engine compartment is structurally laterally introduced in diffuser, then is fed in tail pipe, and turbulization together with the air stream simultaneously produced with cooling fan, reduce the temperature of the high-temp waste gas that has passed through smoke abatement apparatus thus widely.
In addition, the turbulent flow that outside air and cooling fan air stream are mixed with each other is being collided the inner circumferential surface of diffuser and the external peripheral surface of tail pipe, to carry out, for cooling heat exchange, reducing significantly thus the temperature of waste gas, and prevents that tail pipe is overheated.
The accompanying drawing explanation
Fig. 1 illustrates to be arranged on the schematic diagram of the state of engine compartment according to prior art for traditional waste gas cooling device of construction plant motor;
Fig. 2 illustrates the schematic diagram that is arranged on the state on engine compartment according to the cooling device of the waste gas for the construction plant motor of the embodiment of the present invention;
Fig. 3 is the schematic perspective view illustrated according to the cooling device of the waste gas for the construction plant motor of the embodiment of the present invention;
Fig. 4 illustrates the air stream produced by outside air and cooling fan to introduce in tail pipe, simultaneously the schematic diagram of the serviceability of turbulization; And
Fig. 5 is the cross-sectional view along the line A-A shown in Fig. 4 intercepting, for the purpose of the installment state of the first guide member of the second guide member that diffuser is described and tail pipe.
Embodiment
Now, describe the preferred embodiments of the present invention in detail with reference to accompanying drawing.In the description of the embodiment of the present invention, will omit at this additional description of repeating of similar elements.In following examples, same reference numeral will be used for meaning similar elements.
Fig. 2 illustrates the schematic diagram that is arranged on the state on engine compartment according to the cooling device of the waste gas for the construction plant motor of the embodiment of the present invention, and Fig. 3 is the schematic perspective view illustrated according to the cooling device of the waste gas for the construction plant motor of the embodiment of the present invention.
According to the embodiment of the present invention, a kind of cooling device of the waste gas for the construction plant motor,
Comprise diesel engine 5 and smoke abatement apparatus 6, smoke abatement apparatus 6 is connected on the outlet pipe of diesel engine 5, to prevent particulate matter, discharges, and described device comprises:
Diffuser 20, diffuser 20 comprises outside air entrance 24 and the second guide member 23a, outside air entrance 24 is exposed to engine compartment 7 outsides, the contiguous outside air entrance of the second guide member 23a 24 location, with the outside air that will introduce in engine compartment, direct in device, diffuser is configured to the external peripheral surface around tail pipe 10, to have the space be limited between tail pipe 10 and diffuser 20, thus, prevent that diffuser from directly contacting tail pipe 10.
In addition, referring to Fig. 4, along the circumference angular spacing at a predetermined angle of tail pipe 10, a plurality of turbulent flow entrances 14 are set, and form a plurality of outside air entrances 24 along the circumferential surface of diffuser 20, with a plurality of turbulent flow entrances 14 of correspondence.
Preferably, along the circumference of tail pipe 10, the turbulent flow entrance 14 of tail pipe 10 is set with the angular spacing of 45 °, the outside air entrance 24 of diffuser 20 is set to the angular spacing corresponding to turbulent flow entrance 14.In the case, turbulent flow entrance 14 and outside air entrance 24 can comprise height and the size differed from one another.
Outside air entrance 24 is to allow air at the mobile passage in engine compartment 7 outsides, preferably, air mobile on engine compartment 7 moves in diffuser 20 by outside air entrance 24, and, in the moving process of air, air is directed in diffuser 20 and tail pipe 10 by the second guide member 23a.
Simultaneously, cooling fan 3 is to produce air stream 9 to reduce the device of overheated gas temperature.Cooling fan 3 is positioned at a side of engine compartment 7, and sucks outside air from the front of engine compartment 7, to produce the air stream 9 that can be reduced in the overheated gas temperature of discharging in the filter regeneration process of smoke abatement apparatus 6.
Preferably, cooling fan 3 is positioned at the back of radiator 8, in the heat affecting getting rid of diesel engine 5 generations, the temperature of air stream 9 is remained on to constant level.
For the air stream 9 that cooling fan 3 is produced offers the space be limited between diffuser 20 and tail pipe 10, diffuser 20 is configured to have than the diameter of tail pipe 10 or large diameter or the size of size, with around tail pipe 10.
In embodiments of the present invention, preferably, the waste gas cooling device can comprise connection bracket 21, and connection bracket 21 is configured to the bottom of diffuser 20 is fixed firmly to smoke abatement apparatus 6, to keep being limited to the space between diffuser 20 and tail pipe 10.The bottom of diffuser 20 is fixed firmly to a side of engine compartment 7, and to keep the erectility of diffuser 20, wherein, the bottom of diffuser 20 and outside air entrance 24 are exposed to the outside of engine compartment 7.
The the second guide member 23a formed on diffuser 20 with form many row's structures together with isolated another second guide member of smoke abatement apparatus 6 23b.Another second guide member 23b is formed on the top inner circumferential surface of diffuser 20 in the mode stretched out, and the second guide member 23a is formed in the mode stretched out on the bottom inner circumferential surface of diffuser 20, to approach outside air entrance 24 location.
Another the second guide member 23b formed on the inner circumferential surface of the top of diffuser 20 can form outstanding air conduit or passage, and wherein, consideration air stream and venting capacity or required turbulent flow are adjusted the angle of back bevel.In the case, preferably, air conduit or passage are formed on the outer surface of tail pipe 10 with the setting interlocked.
The second guide member 23a can radially be arranged on the bottom inner circumferential surface of diffuser 20 by the predetermined interval in angular range from 30 ° to 90 °.In addition, the second guide member 23b that is different from the second guide member 23a can radially be arranged on the top inner circumferential surface of diffuser 20 by the predetermined interval in angular range from 30 ° to 90 °, so that the second guide member 23a and 23b can form many row's structures.
Simultaneously, the first guide member 13a formed on tail pipe 10 with form many row's structures together with isolated another first guide member of smoke abatement apparatus 6 13b.Another first guide member 13b is formed on the top inner circumferential surface of tail pipe 10 in the mode stretched out, and the first guide member 13a is formed in the mode stretched out on the bottom inner circumferential surface of tail pipe 10, to approach turbulent flow entrance 14 location.
The first guide member 13a can radially be arranged on the bottom inner circumferential surface of tail pipe 10 by the predetermined interval in angular range from 30 ° to 90 °.In addition, the first guide member 13b that is different from the first guide member 13a can radially be arranged on the top inner circumferential surface of tail pipe 10 by the predetermined interval in angular range from 30 ° to 90 °, so that the first guide member 13a and 13b can form many row's structures.
Another the second guide member 13b formed on the inner circumferential surface of the top of tail pipe 10 can form outstanding air conduit or passage, and consideration air stream and venting capacity or required turbulent flow are adjusted the angle of its back bevel.For example, in the situation that venting capacity is very large, by adjusting the angle of air conduit back bevel, turbulent flow can keep relative longly with the heat exchanger time between waste gas.
Preferred embodiment
Diffuser 20 according to the present invention allows outside air to mix with cooling fan air stream 9 by smoke abatement apparatus 6 when waste gas when tail pipe 10 is discharged, and with turbulization, and the waste gas of the turbulent flow of permission low temperature and high temperature mixes tail pipe 10 is interior, with discharging waste gas.
Preferably, the turbulent flow that diffuser 20 allows the collision between the outside air interior by cooling fan air stream 9 and engine compartment 7 to produce in the space be limited between tail pipe 10 and diffuser 20 around the external peripheral surface of tail pipe 10, so that the external peripheral surface of tail pipe 10 is cooling.Therefore, can prevent direct contact the between the external structure of diffuser 20 or human body and tail pipe 10, to avoid the danger of fire and burn.
More specifically, the process of discharging from tail pipe 10 by smoke abatement apparatus 6 at waste gas, cooling fan air stream 9 arrives the turbulent flow entrance 14 of tail pipe 10 and the outside air entrance 24 of diffuser 20.The cooling fan air stream 9 of some arrival is colliding the back bevel of the second guide member 23a formed on the inner circumferential surface of the bottom of diffuser 20, so that the flow direction of some cooling fan air streams 9 mainly changes towards the turbulent flow entrance 14 of tail pipe 10.
In other words, cooling fan air stream 9 collides and mixes with the outside air that the outside air entrance 24 by diffuser 20 is laterally introduced, with turbulization.In this process, remaining cooling fan air stream 9(refers to be parallel to the airflow component of diffuser inner circumferential surface) movement goes ahead, the back bevel and the top that surpass the second guide member 23a of diffuser 20, then remaining air stream colliding the back bevel of the second guide member 23b and guided by the back bevel of the second guide member 23b, so that can be brought into the external peripheral surface close contact with tail pipe 10.
Finally, turbulent flow is introduced in tail pipe 10, in turbulent flow, and the cooling fan air stream 9 produced by the cooling fan 3 be arranged in engine compartment 7 and the fierce mixing of the outside air in engine compartment 7.Now, some turbulent flows that are not introduced in tail pipe 10 are upwards mobile spirally along the external peripheral surface of tail pipe 10, and the while is around the external peripheral surface of tail pipe 10.In this process, turbulent flow can be again with top inner circumferential surface at diffuser 20 on the back bevel collision of the second guide member 23b of forming, with turbulization.
Simultaneously, if necessary, can not suppress the pneumatic mobile of cooling fan air stream 9 and reduce in the scope of tail pipe 10 and exhaust gas temperature, the mode of revising in every way to stretch out forms the shape of the second guide member 23a that arrange or 23b more and structure is set on the inner circumferential surface of diffuser 20.
For example, can in the angular range from 15 ° to 80 °, adjust the angle of the back bevel of the second guide member 23a of diffuser 20 or 23b, and torsion angle can additionally be applied to the back bevel of the second guide member 23a or 23b.
As mentioned above, according to the embodiment of the present invention, turbulent flow is introduced in tail pipe 1 by turbulent flow entrance 14, and in turbulent flow, the outside air in cooling fan air stream 9 and engine compartment 7 is mixed with each other.In the case, if having height difference between the turbulent flow entrance 14 of the outside air entrance 24 of diffuser 20 and tail pipe 10, turbulent flow is more effectively introduced in tail pipe 1 so.
For example, be arranged on the lower position place close to relatively from the top surface of smoke abatement apparatus 6 at the outside air entrance 24 of diffuser 20, and the turbulent flow entrance 14 of tail pipe 10 is arranged in the situation at the place, higher position away from relatively from the top surface of smoke abatement apparatus 6, turbulent flow is being collided the back bevel of the second guide member 23a of diffuser 20, front orientation with the flow direction that causes turbulent flow towards the turbulent flow entrance 14 of tail pipe 10, so that the introducing efficiency of turbulent flow can increase.
Simultaneously, turbulent flow and the waste gas by the turbulent flow entrance 14 of tail pipe 10, introduced in tail pipe 10 are mixed with each other, and are discharged into outside via the top of tail pipe 10.The waste gas mixed with turbulent flow in this process is colliding the back bevel of the first guide member 13b formed on the inner circumferential surface of the top of tail pipe 10.Now, the waste gas of high temperature mixes with the low temperature turbulent flow of introducing in tail pipe 10 by turbulent flow entrance 14, and is discharged into outside by heat exchange.
Finally, according to the cooling device of the waste gas for the construction plant motor of the present invention, allow cooling fan air stream and waste gas through the outside air entrance 24 of diffuser 20 and turbulent flow entrance 14 and first guide member 13a or the 13b of the second guide member 23a or 23b and tail pipe 10, so that the temperature of waste gas, tail pipe 10 and diffuser 20 can be reduced to relatively low temperature, and the form that the waste gas of low temperature can vertical turbulence is discharged into engine compartment 7 outsides.
Although in conjunction with the specific embodiment shown in figure, described the present invention, they are only exemplary, and the invention is not restricted to these embodiments.Should be understood that without departing from the spirit and scope in the present invention, those skilled in the art can carry out embodiment's various equivalent modifications and variation.Therefore, real technical scope of the present invention should not limited by above-described embodiment, and should be limited by claims and equivalents thereof.
Industrial applicability
As mentioned above, can effectively be applied to construction plant and excavator or the wheel loader of the excavation, transportation and the smooth/leveling work that are used in earth and sandstone according to the cooling device of the waste gas for the construction plant motor of the embodiment of the present invention.
Claims (5)
1. the device for reducing the exhaust gas temperature of construction plant motor, comprise diesel engine (5) and smoke abatement apparatus (6), described smoke abatement apparatus (6) is connected on the outlet pipe of described diesel engine (5), to prevent particulate matter, discharges, and described device comprises:
Cooling fan (3), described cooling fan (3) is arranged on a side of engine compartment (7), and is configured to produce cooling fan air stream (9) by the inflow of outside air;
Tail pipe (10), described tail pipe (10) comprises turbulent flow entrance (14) and the first guide member (13a), described the first guide member (13a) is configured to described cooling fan air stream (9) is directed in described tail pipe (10), an end of described tail pipe (10) is connected to described smoke abatement apparatus (6), and the other end extends to described engine compartment (7) outside, with the overheated gas that will discharge in the regenerative process of described smoke abatement apparatus (6), is discharged into outside; And
Diffuser (20), described diffuser (20) comprises outside air entrance (24) and the second guide member (23a), described outside air entrance (24) is exposed to described engine compartment (7) outside, the contiguous described outside air entrance of described the second guide member (23a) (24) location, with the outside air that will introduce in described engine compartment (7), direct in described device, described diffuser (20) is configured to the external peripheral surface around described tail pipe (10), to there is the space be limited between described tail (10) pipe and described diffuser (20), thus, prevent that described diffuser (20) from directly contacting described tail pipe (10).
2. the device of the exhaust gas temperature for reducing the construction plant motor as claimed in claim 1, wherein, with the angular spacing of 45 °, a plurality of described turbulent flow entrances (14) are set along the circumference of described tail pipe (10), and the circumference along described diffuser (20) arranges a plurality of described outside air entrances (24), with the described a plurality of turbulent flow entrances of correspondence (14).
3. the device of the exhaust gas temperature for reducing the construction plant motor as claimed in claim 1 or 2, wherein, described the second guide member (23a, 23b) to be formed on described diffuser (20) to arrange with the isolated mode of described smoke abatement apparatus (6) more.
4. the device of the exhaust gas temperature for reducing the construction plant motor as claimed in claim 1 or 2, wherein, the mode that described the first guide member (13a, 13b) is usingd as described smoke abatement apparatus (6) is formed on described tail pipe (10) to arrange more.
5. the device of the exhaust gas temperature for reducing the construction plant motor as claimed in claim 1 or 2, also comprise connection bracket (21), described connection bracket (21) is fixed firmly to described smoke abatement apparatus (6) by the bottom of described diffuser (20), to keep being limited to the space between described diffuser (20) and described tail pipe (10).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2011/002445 WO2012138000A1 (en) | 2011-04-07 | 2011-04-07 | Exhaust gas temperature reduction device for an engine of construction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103459788A true CN103459788A (en) | 2013-12-18 |
Family
ID=46969374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800698465A Pending CN103459788A (en) | 2011-04-07 | 2011-04-07 | Exhaust gas temperature reduction device for an engine of construction equipment |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140020638A1 (en) |
| EP (1) | EP2696046A4 (en) |
| JP (1) | JP2014515076A (en) |
| KR (1) | KR20140024861A (en) |
| CN (1) | CN103459788A (en) |
| WO (1) | WO2012138000A1 (en) |
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| CN109779730A (en) * | 2017-11-14 | 2019-05-21 | 斗山英维高株式会社 | The gas guide apparatus of engineering machinery |
| CN113389631A (en) * | 2021-06-30 | 2021-09-14 | 重庆长安汽车股份有限公司 | Flow guide structure for improving local high temperature at exhaust side of longitudinally-arranged engine assembly |
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| JP6430833B2 (en) * | 2015-01-06 | 2018-11-28 | 日立建機株式会社 | Construction machinery |
| JP2017160639A (en) * | 2016-03-08 | 2017-09-14 | 日立建機株式会社 | Exhaust device of working machine |
| TR201618056A2 (en) * | 2016-12-07 | 2018-06-21 | Ford Otomotiv Sanayi As | MODULAR EXHAUST EXIT PIPE |
| JP2019167884A (en) * | 2018-03-23 | 2019-10-03 | いすゞ自動車株式会社 | Tail pipe, exhaust pipe structure, and vehicle |
| KR102598538B1 (en) * | 2018-10-22 | 2023-11-03 | 현대자동차주식회사 | Exhaust tail trim for vehicle |
| GB2586890B (en) * | 2019-10-23 | 2021-10-27 | Timberwolf Ltd | Cooling means for exhaust gas |
| JP2023051491A (en) | 2021-09-30 | 2023-04-11 | 株式会社クボタ | Service vehicle |
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- 2011-04-07 WO PCT/KR2011/002445 patent/WO2012138000A1/en active Application Filing
- 2011-04-07 CN CN2011800698465A patent/CN103459788A/en active Pending
- 2011-04-07 EP EP11862926.0A patent/EP2696046A4/en not_active Withdrawn
- 2011-04-07 KR KR1020137025494A patent/KR20140024861A/en not_active Application Discontinuation
- 2011-04-07 US US14/008,845 patent/US20140020638A1/en not_active Abandoned
- 2011-04-07 JP JP2014503577A patent/JP2014515076A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105508010A (en) * | 2016-01-19 | 2016-04-20 | 宁波吉士汽配有限公司 | Exhaust pipe |
| CN109779730A (en) * | 2017-11-14 | 2019-05-21 | 斗山英维高株式会社 | The gas guide apparatus of engineering machinery |
| US10851698B2 (en) | 2017-11-14 | 2020-12-01 | Doosan Infracore Co., Ltd. | Exhaust gas guiding device for a construction machine |
| CN113389631A (en) * | 2021-06-30 | 2021-09-14 | 重庆长安汽车股份有限公司 | Flow guide structure for improving local high temperature at exhaust side of longitudinally-arranged engine assembly |
| CN113389631B (en) * | 2021-06-30 | 2022-07-08 | 重庆长安汽车股份有限公司 | Flow guide structure for improving local high temperature at exhaust side of longitudinally-arranged engine assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012138000A1 (en) | 2012-10-11 |
| JP2014515076A (en) | 2014-06-26 |
| EP2696046A4 (en) | 2015-03-18 |
| US20140020638A1 (en) | 2014-01-23 |
| EP2696046A1 (en) | 2014-02-12 |
| KR20140024861A (en) | 2014-03-03 |
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Application publication date: 20131218 |