WO2022181390A1 - ダンプトラック - Google Patents
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- Publication number
- WO2022181390A1 WO2022181390A1 PCT/JP2022/005914 JP2022005914W WO2022181390A1 WO 2022181390 A1 WO2022181390 A1 WO 2022181390A1 JP 2022005914 W JP2022005914 W JP 2022005914W WO 2022181390 A1 WO2022181390 A1 WO 2022181390A1
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- WO
- WIPO (PCT)
- Prior art keywords
- post
- exhaust pipe
- processing device
- engine
- dump truck
- 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
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/28—Tipping body constructions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
-
- 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
- F01N13/011—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 having two or more purifying devices arranged in parallel
-
- 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
-
- 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
-
- 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
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/04—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts
-
- 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
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- This disclosure relates to dump trucks.
- an aftertreatment device for exhaust gas discharged from an engine As an aftertreatment device for exhaust gas discharged from an engine, an aftertreatment device such as that disclosed in Patent Document 1 is known.
- an aftertreatment device When installing an aftertreatment device on a dump truck, it may be difficult to install the aftertreatment device in the engine room due to installation space restrictions. When the aftertreatment device is installed outside the engine room, it may obstruct the driver's view depending on the position of the aftertreatment device.
- An object of the present disclosure is to arrange an exhaust gas aftertreatment device at an appropriate position on a dump truck.
- an engine a cab floor disposed above the engine and supporting the cab, a first aftertreatment device for treating exhaust gas discharged from a first exhaust pipe of the engine, a second and a second aftertreatment device for treating exhaust gas discharged from the exhaust pipe, wherein the first aftertreatment device and the second aftertreatment device are positioned behind the engine and below the cab floor in the vehicle width direction.
- a dump truck is provided, which is arranged side by side with the
- an exhaust gas aftertreatment device is arranged at an appropriate position on the dump truck.
- FIG. 1 is a front perspective view schematically showing a dump truck according to an embodiment.
- FIG. 2 is a left side view schematically showing the dump truck according to the embodiment.
- FIG. 3 is a side sectional view showing part of the dump truck according to the embodiment.
- FIG. 4 is a left side view showing the vehicle body frame, the engine, and the aftertreatment device according to the embodiment.
- FIG. 5 is a rear perspective view showing an engine and an aftertreatment device according to the embodiment.
- FIG. 6 is a plan view showing the relationship between the cab floor and the aftertreatment device according to the embodiment.
- FIG. 7 is a right side view of the post-processing device according to the embodiment.
- a three-dimensional orthogonal coordinate system is set, and the positional relationship of each part will be described with reference to the three-dimensional orthogonal coordinate system.
- the direction parallel to the X-axis in a predetermined plane is defined as the X-axis direction
- the direction parallel to the Y-axis in a predetermined plane perpendicular to the X-axis is defined as the Y-axis direction
- the direction parallel to the Z-axis orthogonal to the predetermined plane is defined as Z.
- Z Axial direction.
- the X-axis direction indicates the left-right direction.
- the Y-axis direction indicates the front-rear direction.
- the Z-axis direction indicates the vertical direction.
- the left-right direction refers to a direction parallel to the rotation axis of non-steered wheels of the dump truck, and is synonymous with the vehicle width direction.
- the vertical direction refers to a direction orthogonal to the contact surface of the tire of the dump truck that contacts the ground.
- the front-rear direction refers to a direction perpendicular to the left-right direction and the up-down direction.
- the +X direction is to the right and the -X direction is to the left.
- the +Y direction is the forward direction and the -Y direction is the backward direction.
- the +Z direction is upward and the -Z direction is downward.
- FIG. 1 is a front perspective view schematically showing a dump truck 1 according to an embodiment.
- FIG. 2 is a left side view schematically showing the dump truck 1 according to the embodiment.
- FIG. 3 is a side sectional view showing part of the dump truck 1 according to the embodiment.
- Dump truck 1 is a self-propelled off-road dump truck that operates at the mining site of a mine.
- the dump truck 1 is of rigid frame type.
- the dump truck 1 includes a body frame 2, an engine 3, a travel device 4, a cab floor 5, a dump body 6, and an aftertreatment device 7. .
- the body frame 2 supports the engine 3, the cab floor 5, and the dump body 6 respectively.
- the engine 3 is the power source of the dump truck 1.
- the engine 3 is supported on the front portion of the vehicle body frame 2 .
- Engine 3 is a diesel engine.
- the engine 3 burns fuel to generate power. Exhaust gas is discharged from the engine 3 .
- the traveling device 4 supports the body frame 2 and travels.
- the travel device 4 has a front axle 8F and a rear axle 8R.
- a front tire 9F is mounted on the front axle 8F.
- a rear tire 9R is mounted on the rear axle 8R.
- the front axle 8 ⁇ /b>F is operated by the steering device of the dump truck 1 .
- the rear axle 8R is not steered.
- the X-axis direction is a direction parallel to the rotation axis of the rear axle 8R.
- the travel device 4 is operated by power generated by the engine 3 .
- Engine 3 is connected to transmission 11 via power take-off 10 .
- the power take-off 10 is arranged behind the engine 3 .
- Transmission 11 is arranged behind power take-off 10 . Power generated by the engine 3 is transmitted to the rear tires 9R via the power take-off 10, the transmission 11, and the rear axle 8R.
- the dump truck 1 travels as the rear tires 9R rotate.
- the cab floor 5 is a plate-shaped member.
- the cab floor 5 is supported on the front portion of the vehicle body frame 2 above the engine 3 .
- the cab floor 5 is arranged above the engine 3 .
- At least part of the cab floor 5 is arranged above the front axle 8F (front tires 9F).
- Cab floor 5 supports cab 12 .
- the cab 12 is arranged on the left side of the upper surface of the cab floor 5 .
- a cab is provided inside the cab 12 .
- a driver drives the dump truck 1 in the driver's cab.
- the dump body 6 loads cargo.
- the dump truck 1 is of a rear dump type.
- the dump truck 1 discharges the cargo from the dump body 6 by rotating the dump body 6 backward.
- the dump body 6 can be changed between a loading posture and a dumping posture by rotating.
- the loading posture refers to a posture in which the dump body 6 is lowered so as to come closest to the body frame 2 and is seated on the body frame 2 within the movable range of the dump body 6 .
- the dump posture refers to a posture in which the vehicle body frame 2 is lifted to the maximum distance within the movable range of the dump body 6 .
- the dump body 6 has a protector plate 6A, a front plate 6B, a bottom plate 6C, a right side plate 6D and a left side plate 6E.
- the protector plate 6A is arranged above the cab 12 when the dump body 6 is in the loading posture.
- the front plate 6B is connected to the rear end of the protector plate 6A.
- a rear end portion of the protector plate 6A and an upper end portion of the front plate 6B are connected.
- the bottom plate 6C is connected to the lower end of the front plate 6B.
- the lower end of the front plate 6B and the front end of the bottom plate 6C are connected.
- the right side plate 6D is connected to the right end of the front plate 6B and the right end of the bottom plate 6C.
- the left side plate 6E is connected to the left end of the front plate 6B and the left end of the bottom plate 6C.
- the protector plate 6A, front plate 6B, bottom plate 6C, right side plate 6D and left side plate 6E are integral.
- FIG. 4 is a left side view showing the body frame 2, the engine 3, and the aftertreatment device 7 according to the embodiment.
- FIG. 5 is a rear perspective view showing the engine 3 and the aftertreatment device 7 according to the embodiment.
- FIG. 6 is a plan view showing the relationship between the cab floor 5 and the post-processing device 7 according to the embodiment.
- FIG. 7 is a right side view showing the post-processing device 7 according to the embodiment.
- the aftertreatment device 7 treats the exhaust gas discharged from the engine 3.
- the aftertreatment device 7 purifies the exhaust gas.
- the aftertreatment device 7 includes a urea SCR (Selective Catalytic Reduction) system that reduces and purifies nitrogen oxides (NOx) contained in the exhaust gas using a selective catalyst and a reducing agent.
- NOx nitrogen oxides
- the post-processing device 7 includes a first post-processing device 71 and a second post-processing device 72 .
- the first aftertreatment device 71 and the second aftertreatment device 72 are located behind the engine 3 and below the cab floor 5, They are arranged side by side in the vehicle width direction (horizontal direction).
- the first post-processing device 71 is arranged to the right of the second post-processing device 72 .
- Each of the first post-treatment device 71 and the second post-treatment device 72 is arranged above the engine 3 in the vertical direction.
- Each of the first post-processing device 71 and the second post-processing device 72 is arranged below the cab floor 5 in the vertical direction.
- each of the first aftertreatment device 71 and the second aftertreatment device 72 is arranged above at least one of the power takeoff 10 and the transmission 11 .
- Each of the first aftertreatment device 71 and the second aftertreatment device 72 is arranged behind the engine 3 in the front-rear direction.
- Each of the first post-processing device 71 and the second post-processing device 72 is arranged behind the cab floor 5 in the front-rear direction.
- the first post-treatment device 71 and the second post-treatment device 72 are the same type of urea SCR system.
- the performance of the first post-processing device 71 and the performance of the second post-processing device 72 are equal.
- the outer shape of the first post-processing device 71 and the outer shape of the second post-processing device 72 are the same.
- the external dimensions of the first post-processing device 71 and the external dimensions of the second post-processing device 72 are equal.
- the outer shape of the first post-processing device 71 is long in a predetermined direction.
- the outer shape of the second post-processing device 72 is long in a predetermined direction.
- the outer shape of the first post-processing device 71 and the outer shape of the second post-processing device 72 may be substantially cylindrical or may be other shapes.
- the first post-processing device 71 is arranged on the body frame 2 so that the longitudinal direction of the first post-processing device 71 and the vehicle width direction of the dump truck 1 are aligned.
- the second post-processing device 72 is arranged on the vehicle body frame 2 so that the longitudinal direction of the second post-processing device 72 and the vehicle width direction of the dump truck 1 are aligned.
- each of the first post-processing device 71 and the second post-processing device 72 is attachable to and detachable from the vehicle body frame 2 .
- the position of the first post-processing device 71 and the position of the second post-processing device 72 are substantially equal in the front-rear direction. In the vertical direction, the position of the first post-processing device 71 and the position of the second post-processing device 72 are substantially equal.
- the right end of the first post-processing device 71 is arranged to the left of the right end of the dump body 6 .
- the left end of the second post-processing device 72 is arranged to the right of the left end of the dump body 6 . That is, each of the first post-processing device 71 and the second post-processing device 72 does not protrude outward from the dump body 6 in the left-right direction.
- the engine 3 is a V-type 12-cylinder engine.
- the engine 3 has a plurality of right side cylinders and a plurality of left side cylinders.
- the right cylinder and the left cylinder are alternately arranged in the front-rear direction.
- the engine 3 is a so-called vertical engine. That is, the crankshaft of the engine 3 is long in the front-rear direction.
- Six cylinders on the right side are provided in the front-rear direction.
- Six cylinders on the left side are provided in the front-rear direction.
- the engine 3 is provided with exhaust ports (not shown) for discharging the exhaust gas discharged from the right and left cylinders to the outside of the engine 3 .
- Each of the plurality of right cylinders is connected to the first exhaust pipe 13 via an exhaust port.
- Each of the plurality of left cylinders is connected to the second exhaust pipe 14 via an exhaust port. Exhaust gas discharged from the right cylinder is discharged to the first exhaust pipe 13 through the discharge port. The exhaust gas discharged from the left cylinder is discharged to the second exhaust pipe 14 through the discharge port.
- the first aftertreatment device 71 is connected to the first exhaust pipe 13 .
- the first aftertreatment device 71 treats the exhaust gas discharged from the first exhaust pipe 13 of the engine 3 .
- the second aftertreatment device 72 is connected to the second exhaust pipe 14 .
- the second aftertreatment device 72 treats exhaust gas discharged from the second exhaust pipe 14 of the engine 3 .
- the first exhaust pipe 13 is connected to the intake port 15 of the first aftertreatment device 71 .
- the intake port 15 is provided on the front left portion of the first post-processing device 71 .
- the second exhaust pipe 14 is connected to the intake port 16 of the second aftertreatment device 72 .
- the intake port 16 is provided at the front right portion of the second post-processing device 72 .
- Exhaust gas discharged from the engine 3 and flowing into the intake port 15 of the first aftertreatment device 71 through the first exhaust pipe 13 is purified in the first aftertreatment device 71, and then exhausted from the first aftertreatment device 71. It is discharged from the mouth 17.
- Exhaust gas discharged from the engine 3 and flowing into the intake port 16 of the second aftertreatment device 72 through the second exhaust pipe 14 is purified in the second aftertreatment device 72, and then exhausted from the second aftertreatment device 72. It is discharged from the mouth 18.
- the exhaust port 17 of the first post-processing device 71 is provided on the right side of the first post-processing device 71 .
- the exhaust port 18 of the second post-processing device 72 is provided on the left side portion of the second post-processing device 72 .
- the exhaust port 17 of the first post-processing device 71 is connected to the third exhaust pipe 19 .
- the exhaust port 18 of the second post-processing device 72 is connected to the fourth exhaust pipe 20 .
- the third exhaust pipe 19 has an inlet 21 and an outlet 22 .
- the inlet 21 is provided at one end of the third exhaust pipe 19 .
- the outflow port 22 is provided at the other end of the third exhaust pipe 19 .
- the exhaust port 17 of the first post-processing device 71 and the inlet port 21 of the third exhaust pipe 19 are connected.
- the exhaust gas discharged from the exhaust port 17 of the first aftertreatment device 71 flows through the third exhaust pipe 19 and then flows out from the outflow port 22 of the third exhaust pipe 19 .
- the fourth exhaust pipe 20 has an inlet 23 and an outlet 24 .
- the inlet 23 is provided at one end of the fourth exhaust pipe 20 .
- Outflow port 24 is provided at the other end of fourth exhaust pipe 20 .
- the exhaust port 18 of the second post-treatment device 72 and the inlet port 23 of the fourth exhaust pipe 20 are connected. The exhaust gas discharged from the exhaust port 18 of the second aftertreatment device 72 flows through the fourth exhaust pipe 20 and then flows out from the outflow port 24 of the fourth exhaust pipe 20 .
- each of the outflow port 22 of the third exhaust pipe 19 and the outflow port 24 of the fourth exhaust pipe 20 is arranged on the right side of the first aftertreatment device 71 .
- Exhaust gas from the engine 3 is discharged to the right of the dump truck 1 through an outlet 22 of the third exhaust pipe 19 and an outlet 24 of the fourth exhaust pipe 20 .
- At least part of the fourth exhaust pipe 20 is arranged below the center C1 of the first post-processing device 71 and the center C2 of the second post-processing device 72 in the vertical direction.
- the center C (C1, C2) of the first and second post-processing devices 71, 72 refers to the approximate center of the first and second post-processing devices 71, 72 in the vertical and longitudinal directions.
- the fourth exhaust pipe 20 has an intermediate portion 20M arranged behind the first post-treatment device 71 and the second post-treatment device 72 .
- An intermediate portion 20M of the fourth exhaust pipe 20 is arranged below the center C1 of the first post-processing device 71 and the center C2 of the second post-processing device 72 in the vertical direction.
- the position of the outflow port 22 of the third exhaust pipe 19 and the position of at least part of the outflow port 24 of the fourth exhaust pipe 20 match. That is, the height of the outlet 22 of the third exhaust pipe 19 and the height of at least a portion of the outlet 24 of the fourth exhaust pipe 20 match. In the vertical direction, the outflow port 22 of the third exhaust pipe 19 and the outflow port 24 of the fourth exhaust pipe 20 are located above the center C1 of the first post-processing device 71 and the center C2 of the second post-processing device 72. placed.
- the right end (outflow port 22 ) of the third exhaust pipe 19 and the right end (outflow port 24 ) of the fourth exhaust pipe 20 are each arranged to the left of the right end of the dump body 6 .
- a left end portion of the third exhaust pipe 19 and a left end portion of the fourth exhaust pipe 20 are each arranged to the right of the left end portion of the dump body 6 . That is, each of the third exhaust pipe 19 and the fourth exhaust pipe 20 does not protrude outward from the dump body 6 in the left-right direction.
- the first aftertreatment device 71 and the second aftertreatment device 72 are arranged side by side in the vehicle width direction behind the engine 3 and below the cab floor 5. .
- the first aftertreatment device 71 and the second aftertreatment device 72 are arranged behind the engine 3, they are not installed in the engine room.
- the first aftertreatment device 71 and the second aftertreatment device 72 are arranged below the cab floor 5, they do not obstruct the driver's field of view. Since the first aftertreatment device 71 and the second aftertreatment device 72 are arranged side by side in the vehicle width direction, the space behind the engine 3 and below the cab floor 5 is effectively utilized.
- the first post-processing device 71 and the second post-processing device 72 are arranged at appropriate positions on the dump truck 1 .
- Each of the first post-processing device 71 and the second post-processing device 72 is arranged forward of the front plate 6B of the dump body 6 .
- the space behind the engine 3, below the cab floor 5, and in front of the front plate 6B is effectively utilized.
- the first post-processing device 71 and the second post-processing device 72 are protected by the protector plate 6A and the front plate 6B, respectively.
- the first post-processing device 71 is arranged so that the longitudinal direction of the first post-processing device 71 and the vehicle width direction are aligned.
- the second aftertreatment device 72 is arranged so that the longitudinal direction of the second aftertreatment device 72 and the vehicle width direction are aligned. This prevents the space occupied by the first post-processing device 71 and the second post-processing device 72 from becoming large.
- the first post-processing device 71 is arranged on the right side of the second post-processing device 72 .
- the exhaust port 17 of the first post-processing device 71 is provided on the right side portion of the first post-processing device 71 .
- the exhaust port 18 of the second post-processing device 72 is provided on the left side portion of the second post-processing device 72 .
- the outflow port 22 of the third exhaust pipe 19 connected to the exhaust port 17 is arranged on the right side of the first post-processing device 71 .
- the outflow port 24 of the fourth exhaust pipe 20 connected to the exhaust port 18 is arranged on the right side of the first aftertreatment device 71 .
- the exhaust gas is discharged to the right side of the dump truck 1. be. Since the cab 12 is arranged on the left side of the cab floor 5, the distance between the cab and the outlets 22 and 24 is long. Therefore, the transmission of noise to the driver's cab when the exhaust gas is discharged from the outflow port 22 and the outflow port 24 is suppressed. In addition, the exhaust gas discharged from the outflow port 22 and the outflow port 24 is suppressed from flowing into the driver's cab.
- At least part of the fourth exhaust pipe 20 is arranged below the center C1 of the first post-processing device 71 and the center C2 of the second post-processing device 72 in the vertical direction.
- the intermediate portion 20M of the fourth exhaust pipe 20 is arranged below the center C1 of the first post-processing device 71 and the center C2 of the second post-processing device 72. As shown in FIG. This suppresses contact between the fourth exhaust pipe 20 and at least a portion of the dump body 6 .
- the position of the outflow port 22 of the third exhaust pipe 19 and the position of at least part of the outflow port 24 of the fourth exhaust pipe 20 match. Since the outflow port 22 and the outflow port 24 are arranged at the same height, an increase in the space occupied by the third exhaust pipe 19 and the fourth exhaust pipe 20 is suppressed. Also, if necessary, the outlet 22 of the third exhaust pipe 19 and the outlet 24 of the fourth exhaust pipe 20 can be connected by a manifold.
- the outflow port 22 of the third exhaust pipe 19 and the outflow port 24 of the fourth exhaust pipe 20 are located above the center C1 of the first post-processing device 71 and the center C2 of the second post-processing device 72. placed. Since the outlet 22 and the outlet 24 are arranged at the same height as the upper portion of the first post-treatment device 71 and the upper portion of the second post-treatment device 72, the space occupied by the third exhaust pipe 19 and the fourth exhaust pipe 20 is reduced. restrained from growing.
- Each of the first post-processing device 71 and the second post-processing device 72 is attached to and detached from the body frame 2 . Since the first after-treatment device 71 and the second after-treatment device 72 are each supported by the vehicle body frame 2, fluctuations in relative position between the first after-treatment device 71 and the second after-treatment device 72 and the body frame 2 are suppressed. be done. By removing each of the first after-treatment device 71 and the second after-treatment device 72 from the vehicle body frame 2, the maintainability of each of the first after-treatment device 71 and the second after-treatment device 72 is improved.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Exhaust Gas After Treatment (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
図1は、実施形態に係るダンプトラック1を模式的に示す前方からの斜視図である。図2は、実施形態に係るダンプトラック1を模式的に示す左側面図である。図3は、実施形態に係るダンプトラック1の一部を示す側断面図である。
図4は、実施形態に係る車体フレーム2とエンジン3と後処理装置7とを示す左側面図である。図5は、実施形態に係るエンジン3と後処理装置7とを示す後方からの斜視図である。図6は、実施形態に係るキャブフロア5と後処理装置7との関係を示す平面図である。図7は、実施形態に係る後処理装置7を示す右側面図である。
以上説明したように、実施形態によれば、第1後処理装置71と第2後処理装置72とは、エンジン3よりも後方且つキャブフロア5よりも下方において、車幅方向に並べて配置される。実施形態によれば、第1後処理装置71と第2後処理装置72とは、エンジン3よりも後方に配置されるので、エンジンルームには設置されない。また、第1後処理装置71と第2後処理装置72とは、キャブフロア5よりも下方に配置されるので、運転者の視界を妨げない。第1後処理装置71と第2後処理装置72とは、車幅方向に並べて配置されるので、エンジン3よりも後方且つキャブフロア5よりも下方の空間が有効活用される。以上により、第1後処理装置71と第2後処理装置72とは、ダンプトラック1の適正な位置に配置される。
Claims (9)
- エンジンと、
前記エンジンよりも上方に配置されキャブを支持するキャブフロアと、
前記エンジンの第1排気管から排出された排気ガスを処理する第1後処理装置と、
前記エンジンの第2排気管から排出された排気ガスを処理する第2後処理装置と、を備え、
前記第1後処理装置と前記第2後処理装置とは、前記エンジンよりも後方且つ前記キャブフロアよりも下方において、車幅方向に並べて配置される、
ダンプトラック。 - 前記キャブよりも上方に配置されるプロテクタ板及び前記プロテクタ板の後端部に接続される前板を有するダンプボディを備え、
前記第1後処理装置及び前記第2後処理装置のそれぞれは、前記前板よりも前方に配置される、
請求項1に記載のダンプトラック。 - 前記第1後処理装置は、前記第1後処理装置の長手方向と前記車幅方向とが一致するように配置され、
前記第2後処理装置は、前記第2後処理装置の長手方向と前記車幅方向とが一致するように配置される、
請求項1又は請求項2に記載のダンプトラック。 - 前記第1後処理装置は、前記第2後処理装置の車幅方向一方側に配置され、
前記第1後処理装置の排気口は、前記第1後処理装置の車幅方向一方側の側部に設けられ、
前記第2後処理装置の排気口は、前記第2後処理装置の車幅方向他方側の側部に設けられ、
前記第1後処理装置の排気口に接続される第3排気管と、
前記第2後処理装置の排気口に接続される第4排気管と、を備え、
前記第3排気管の流出口及び前記第4排気管の流出口のそれぞれは、前記第1後処理装置よりも車幅方向一方側に配置される、
請求項1から請求項3のいずれか一項に記載のダンプトラック。 - 上下方向において、前記第4排気管の少なくとも一部は、前記第1後処理装置の中心及び前記第2後処理装置の中心よりも下方に配置される、
請求項4に記載のダンプトラック。 - 前記第4排気管は、前記第1後処理装置及び前記第2後処理装置の後方に配置される中間部を有し、
上下方向において、前記第4排気管の中間部は、前記第1後処理装置の中心及び前記第2後処理装置の中心よりも下方に配置される、
請求項5に記載のダンプトラック。 - 上下方向において、前記第3排気管の流出口の位置と前記第4排気管の流出口の少なくとも一部の位置とは、一致する、
請求項4から請求項6のいずれか一項に記載のダンプトラック。 - 上下方向において、前記第3排気管の流出口及び前記第4排気管の流出口のそれぞれは、前記第1後処理装置の中心及び前記第2後処理装置の中心よりも上方に配置される、
請求項7に記載のダンプトラック。 - 前記エンジンを支持する車体フレームを備え、
前記第1後処理装置及び前記第2後処理装置のそれぞれは、前記車体フレームに着脱される、
請求項1から請求項8のいずれか一項に記載のダンプトラック。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014122476A (ja) * | 2012-12-20 | 2014-07-03 | Komatsu Ltd | 作業車両 |
JP2015105652A (ja) * | 2013-12-02 | 2015-06-08 | ゼネラル・エレクトリック・カンパニイ | 運転者警告および出力低下制御システムおよび方法 |
JP2015112907A (ja) * | 2013-12-09 | 2015-06-22 | 日立建機株式会社 | ダンプトラックおよびその荷台 |
WO2016163300A1 (ja) * | 2016-03-31 | 2016-10-13 | 株式会社小松製作所 | ダンプトラック |
WO2017034043A1 (ja) * | 2016-09-26 | 2017-03-02 | 株式会社小松製作所 | Egr装置、およびこれを備えたダンプトラック |
WO2018216824A1 (ja) * | 2018-07-10 | 2018-11-29 | 株式会社小松製作所 | ダンプボディ及びダンプトラック |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2011004703A (ja) * | 2009-06-29 | 2011-01-13 | Iseki & Co Ltd | 収穫機 |
US9316136B2 (en) | 2012-07-05 | 2016-04-19 | Komatsu Ltd. | Engine unit and work vehicle |
SE537805C2 (sv) * | 2012-10-03 | 2015-10-20 | Scania Cv Ab | Motorfordon innefattande en avgasefterbehandlingsanordning |
US9234471B2 (en) | 2012-12-01 | 2016-01-12 | General Electric Company | Driver alert and de-rate control system and method |
JP5719092B1 (ja) * | 2014-08-25 | 2015-05-13 | 株式会社小松製作所 | ブルドーザ |
JP6484158B2 (ja) * | 2015-10-16 | 2019-03-13 | ヤンマー株式会社 | コンバイン |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2014122476A (ja) * | 2012-12-20 | 2014-07-03 | Komatsu Ltd | 作業車両 |
JP2015105652A (ja) * | 2013-12-02 | 2015-06-08 | ゼネラル・エレクトリック・カンパニイ | 運転者警告および出力低下制御システムおよび方法 |
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WO2016163300A1 (ja) * | 2016-03-31 | 2016-10-13 | 株式会社小松製作所 | ダンプトラック |
WO2017034043A1 (ja) * | 2016-09-26 | 2017-03-02 | 株式会社小松製作所 | Egr装置、およびこれを備えたダンプトラック |
WO2018216824A1 (ja) * | 2018-07-10 | 2018-11-29 | 株式会社小松製作所 | ダンプボディ及びダンプトラック |
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