Work vehicles

Abstract

To solve the problem of conventional work vehicles such as agricultural tractors in which: efficient realization of a good cooling function according to engine environmental performance is not necessarily sufficient.SOLUTION: An agricultural tractor comprises: a radiator 100 for cooling an engine 30 mounted on a vehicle body 10, that uses a fuel to generate power; an oil cooler 200 disposed in front of the radiator 100; a first fuel cooler 310 for cooling the fuel that is introduced to the engine 30 side; and a second fuel cooler 320 for cooling the fuel that comes out of the engine 30 side. At least a part of the first fuel cooler 310 is disposed in front of the oil cooler 200. At least a part of the second fuel cooler 320 is disposed above the oil cooler 200.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to work vehicles, such as agricultural tractors. [Background technology]

[0002] 2. Description of the Related Art Work vehicles such as agricultural tractors are known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-103871 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, for work vehicles such as the above-mentioned conventional agricultural tractors, it is not always possible to efficiently achieve a good cooling function according to the engine environmental performance and the like.

[0005] The present invention has been made in consideration of the above-mentioned conventional problems, and has an object to provide a work vehicle that can efficiently achieve a good cooling function according to the engine environmental performance, etc. [Means for solving the problem]

[0006] The first aspect of the present invention is a radiator for cooling an engine that uses fuel to generate power and is attached to a vehicle body; an oil cooler disposed in front of the radiator; a first fuel cooler for cooling the fuel entering the engine side; a second fuel cooler for cooling the fuel exiting the engine side; a base plate member disposed below the first fuel cooler and the second fuel cooler; a wall plate member having a left wall plate portion disposed on a left side of the vehicle body and a right wall plate portion disposed on a right side of the vehicle body; Equipped with At least a portion of the first fuel cooler is disposed forward of the oil cooler, At least a portion of the second fuel cooler is disposed above the oil cooler, a hole is provided in the base plate member for introducing a first fuel pipe member connected to the first fuel cooler and a second fuel pipe member connected to the second fuel cooler to a lower side of the base plate member between the left wall plate portion and the right wall plate portion; the first fuel pipe member and the second fuel pipe member are isolated from the engine by the radiator above the base plate member, and are isolated from the engine by a crank pulley cover below the base plate member; the wall plate member is provided with holes for drawing the first fuel pipe member and the second fuel pipe member connected to the engine outward from the wall plate member with respect to a vehicle body left-right direction; the engine is disposed between the left wall plate portion and the right wall plate portion, The first fuel pipe member pulled out to the outside of the wall plate member, and the second fuel pipe member pulled out to the outside of the wall plate member and connected to the engine, are routed through an inside of a cooling water drain hose with respect to the left-right direction of the vehicle body. As a result, the work vehicle is equipped with a first fuel cooler that cools fuel entering the engine side and a second fuel cooler that cools fuel exiting the engine side, so that a good cooling function according to the engine environmental performance and the like can be efficiently realized. Note that as a result, holes for pulling the first fuel pipe member connected to the first fuel cooler and the second fuel pipe member connected to the second fuel cooler into the underside of the base plate member between the left wall plate portion and the right wall plate portion are provided in the base plate member, so that efficient arrangement of the pipe members can also be realized. Also, as a result, holes for pulling the first fuel pipe member and the second fuel pipe member connected to the engine outward from the wall plate member with respect to the left-right direction of the vehicle body as a reference are provided in the wall plate member, so that efficient arrangement of the pipe members can also be realized. The first invention related to the present invention A radiator that cools the engine installed in the vehicle body, which uses fuel to generate power, an oil cooler disposed in front of the radiator; a first fuel cooler for cooling the fuel entering the engine side; a second fuel cooler for cooling the fuel exiting the engine side; Equipped with At least a portion of the first fuel cooler is disposed forward of the oil cooler, The work vehicle is characterized in that at least a portion of the second fuel cooler is disposed above the oil cooler.

[0007] As a result, the work vehicle is equipped with a first fuel cooler that cools the fuel entering the engine side, and a second fuel cooler that cools the fuel coming out of the engine side, so it can efficiently achieve good cooling function according to the engine environmental performance, etc.

[0008] The second invention related to the present invention a support plate member supported by a support member used for mounting the radiator; The first fuel cooler is supported by the support plate together with the oil cooler. The first invention related to the present invention It is a work vehicle.

[0009] As a result, the first fuel cooler, together with the oil cooler, is held by the holding plate member, making it possible to efficiently reduce the number of cooler parts.

[0010] The third invention related to the present inventionThe second fuel cooler has a vertical cooling pipe section whose pipe length direction is vertical, and a horizontal cooling pipe section whose pipe length direction is horizontal. The second invention related to the present invention It is a work vehicle.

[0011] As a result, the second fuel cooler has a vertical cooling pipe section whose pipe length direction is vertical, and a horizontal cooling pipe section whose pipe length direction is horizontal, thereby achieving an efficient spatial arrangement of the cooler components.

[0012] The fourth invention related to the present invention the second fuel cooler is supported by the support plate member at least at the position of the vertical cooling pipe portion. The third invention related to the present invention It is a work vehicle.

[0013] As a result, the second fuel cooler is held by the holding plate member at least at the position of the vertical cooling pipe portion, so that efficient holding of the cooler components can be achieved.

[0014] Fifth Invention Related to the Present Invention a base plate member disposed below the first fuel cooler and the second fuel cooler; a wall plate member having a left wall plate portion disposed on a left side of the vehicle body and a right wall plate portion disposed on a right side of the vehicle body; Equipped with a hole is provided in the base plate member for introducing a first fuel pipe member connected to the first fuel cooler and a second fuel pipe member connected to the second fuel cooler to a lower side of the base plate member between the left wall plate portion and the right wall plate portion; the first fuel pipe member and the second fuel pipe member are isolated from the engine by the radiator above the base plate member, and are isolated from the engine by a crank pulley cover below the base plate member. The first invention related to the present invention It is a work vehicle.

[0015] As a result, holes are provided in the base plate member for pulling the first fuel pipe member connected to the first fuel cooler and the second fuel pipe member connected to the second fuel cooler into the underside of the base plate member between the left wall plate portion and the right wall plate portion, thereby achieving efficient arrangement of the pipe members.

[0016] The sixth invention related to the present invention a hole is provided in the wall plate member for drawing out the first fuel pipe member and the second fuel pipe member connected to the engine to an outside of the wall plate member with respect to a left-right direction of a vehicle body, the engine is disposed between the left wall plate portion and the right wall plate portion, the first fuel pipe member drawn to the outside of the wall plate member, and the second fuel pipe member drawn to the outside of the wall plate member and connected to the engine, are routed through an inside of a cooling water drain hose with respect to the left-right direction of the vehicle body. Fifth Invention Related to the Present Invention It is a work vehicle.

[0017] With this, holes are provided in the wall plate member for pulling the first fuel pipe member and the second fuel pipe member connected to the engine outward from the wall plate member with respect to the left-right direction of the vehicle body, thereby achieving efficient arrangement of the pipe members. Effect of the Invention

[0018] According to the present invention, it is possible to provide a work vehicle that can efficiently achieve a good cooling function according to the engine environmental performance, etc. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a left side view of an agricultural tractor according to an embodiment of the present invention; [Diagram 2]FIG. 1 is a partial perspective view (part 1) of an oil cooler, a first fuel cooler, and a second fuel cooler of an agricultural tractor according to an embodiment of the present invention; [Diagram 3] FIG. 2 is a partial perspective view (part 2) of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 4] FIG. 3 is a partial perspective view (part 3) of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Diagram 5] FIG. 4 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 6] FIG. 5 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 7] FIG. 6 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 8] FIG. 7 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 9] FIG. 8 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 10] FIG. 9 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 11] FIG. 10 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of an agricultural tractor according to an embodiment of the present invention; [Figure 12] FIG. 11 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 13] FIG. 12 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 14] FIG. 13 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 15] FIG. 14 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 16] FIG. 15 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention. [Figure 17] FIG. 16 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 18] FIG. 17 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 19] FIG. 18 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 20] FIG. 19 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of the agricultural tractor according to the embodiment of the present invention; [Figure 21] FIG. 20 is a partial perspective view of the oil cooler, the first fuel cooler, and the second fuel cooler of an agricultural tractor according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the drawings, an embodiment of the present invention will be described in detail.

[0021] The same applies below, but some components may not be shown in the drawings, or may be shown in a perspective or simplified manner.

[0022] (A) First, the configuration and operation of the agricultural tractor of the present embodiment will be specifically described with reference to FIGS. 1 to 7.

[0023] Here, FIG. 1 is a left side view of an agricultural tractor according to an embodiment of the present invention, and FIGS. 2 to 7 are partial oblique views (numbers 1 to 6) of the oil cooler 200, and the first fuel cooler 310 and the second fuel cooler 320 of the agricultural tractor according to an embodiment of the present invention.

[0024] The agricultural tractor of this embodiment is an example of a work vehicle according to the present invention.

[0025] First, the basic configuration and operation of the agricultural tractor of this embodiment will be described. Therefore, the specific configurations and operations related to the oil cooler 200, and the first fuel cooler 310 and the second fuel cooler 320 will be described in detail later.

[0026] An engine 30 is provided inside a bonnet 31 at the front of the vehicle body 10 .

[0027] The rotational power of the engine 30 is transmitted via various clutches inside a transmission case provided below the floor 21 of the driving unit 20. More specifically, the rotational power whose speed is changed by the main transmission and the sub transmission is transmitted to a pair of left and right front wheels 40 and a pair of left and right rear wheels 50.

[0028] Behind the engine 30, a dashboard cover, a meter panel, a forward / reverse lever, and a steering wheel 23 are provided.

[0029] A driver's seat 22 is provided behind the steering wheel 23.

[0030] A brake pedal, a disconnecting pedal, and a clutch pedal are disposed on the left floor 21. A pair of left and right brake and accelerator pedals 24 are disposed on the right floor 21.

[0031] A work machine is attached to the rear of the vehicle body 10 using, for example, a three-point linkage mechanism.

[0032] The work machine lifting mechanism 60 has a main cylinder, a lift arm, a top link 61, a pair of left and right lower links 62, a rotating cover, and a side cover.

[0033] The front ends of the top link 61 and the lower link 62 are connected to the vehicle body 10, and the rear ends of the top link 61 and the lower link 62 are connected to the work machine. The rear end of the lift arm rotated by the main cylinder is connected to the lower link 62.

[0034] The rotation angle of the pivot cover is detected by a tillage depth sensor, and the rotation angle of the lift arm is detected by a lift arm sensor.

[0035] Information about the work machine is acquired using a work machine installation status acquisition unit such as an ISO (International Organization for Standardization) BUS connected to the work machine or an information terminal mounted on the driving unit 20, and notified to the controller.

[0036] The radiator 100 is a radiator that cools the engine 30 that is attached to the vehicle body 10 and uses fuel to generate power.

[0037] The oil cooler 200 is an oil cooler disposed in front of the radiator 100.

[0038] In the fuel tank breather configuration of a so-called stage 5 engine, since it is required to reduce the fuel temperature to satisfy the fuel temperature standard, a configuration is adopted in which the fuel cooler is disposed in two locations, on the engine inlet side and the engine outlet side, of the three-cylinder engine 30 by utilizing a first fuel cooler 310 and a second fuel cooler 320.

[0039] The first fuel cooler 310 is a fuel cooler that cools the fuel entering the engine 30 side.

[0040] The second fuel cooler 320 is a fuel cooler that cools the fuel coming out from the engine 30 side.

[0041] Unburned fuel in the engine 30 that has passed through the first fuel cooler 310 generates harmful substances such as soot in the exhaust gas, but if the fuel particles injected into the engine cylinders are small, the generation of such harmful substances is reduced, so in the engine 30, which is a common rail engine, the fuel that has been compressed and temporarily stored in the common rail is injected into the engine cylinders at high pressure through fine nozzles so that the fuel particles become small. The temperature of the remaining fuel that has been stored in the common rail but not injected into the engine cylinders increases with compression, so it is cooled by passing through the second fuel cooler 320 and then returned to the fuel tank 32.

[0042] The cooling using the first fuel cooler 310 and the second fuel cooler 320 may be performed on a coolant, such as cooling water, to cool the fuel, instead of on the fuel.

[0043] At least a portion of the first fuel cooler 310 is disposed forward of the oil cooler 200 .

[0044] At least a portion of the second fuel cooler 320 is disposed above the oil cooler 200 .

[0045] Of course, in order to stably achieve efficient component arrangement and component retention in the small space inside the engine compartment, for example, the first fuel cooler 310 and the second fuel cooler 320 located between the battery 33 and the radiator 100 may be arranged in parallel with respect to the left-right direction of the vehicle body.

[0046] (B) Next, the configuration and operation of the agricultural tractor of this embodiment will be described in more detail with reference mainly to FIGS.

[0047] 8 to 17 are partial perspective views (numbers 7 to 16) of the oil cooler 200, the first fuel cooler 310, and the second fuel cooler 320 of the agricultural tractor according to the embodiment of the present invention.

[0048] (B1) Mainly with reference to FIGS. 8 to 13, the holding plate member 500 and the like will be specifically described.

[0049] The holding plate member 500 is a plate member supported by the support member 400 used for mounting the radiator 100 .

[0050] The first fuel cooler 310 , together with the oil cooler 200 , is held by a holding plate member 500 .

[0051] In this manner, the first fuel cooler 310 on the engine inlet side is fixed together with the oil cooler 200, which is a hydraulic oil cooler, by utilizing the fixing bolt devices 501 of the retaining plate member 500 supported by the support member 400 serving as a radiator bracket member, and therefore the reduction in the number of parts is promoted by co-fastening of the bracket fixing bolts.

[0052] The second fuel cooler 320 has a vertical cooling pipe section 321 whose pipe length direction is vertical, and a horizontal cooling pipe section 322 whose pipe length direction is horizontal.

[0053] In this way, the shape of second fuel cooler 320 on the engine outlet side is a bent pipe shape that covers the periphery of first fuel cooler 310 on the engine inlet side, which makes it possible to stably realize efficient component arrangement and component retention in the small space inside the engine compartment.

[0054] The second fuel cooler 320 is supported by a support plate member 500 at least at the position of the vertical cooling pipe portion 321 .

[0055] In this way, the retaining plate member 500, which secures the first fuel cooler 310 on the engine inlet side and the oil cooler 200 arranged rearward of the first fuel cooler 310, also functions as the second fuel cooler bracket member which secures the second fuel cooler 320 on the engine outlet side, and thus a reduction in the number of parts is promoted by co-fastening the bracket fixing bolts.

[0056] (B2) Mainly with reference to FIGS. 14 to 17, the first fuel pipe member 810 and the second fuel pipe member 820 will be specifically described.

[0057] The base plate member 600 is a plate member disposed below the first fuel cooler 310 and the second fuel cooler 320 .

[0058] The wall plate member 700 is a plate member having a left wall plate portion 710 disposed on the left side of the vehicle body 10 and a right wall plate portion 720 disposed on the right side of the vehicle body 10.

[0059] Holes 601 are provided in base plate member 600 for drawing a first fuel pipe member 810 connected to first fuel cooler 310 and a second fuel pipe member 820 connected to second fuel cooler 320 under the base plate member 600 between the left wall plate portion 710 and the right wall plate portion 720.

[0060] By utilizing holes 601 provided in base plate member 600 on which support member 400 serving as a radiator bracket member is erected, the fuel hose is routed below base plate member 600, so that the temperature rise of the fuel cooled in first fuel cooler 310 or second fuel cooler 320 is suppressed when the fuel is pulled out from the inside of the engine compartment, which has a high temperature.

[0061] In the first fuel pipe member 810 and the second fuel pipe member 820, which are routed through four holes 601 provided in the base plate member 600, hose connection is performed at a position near the holes 601, thereby making assembly easy.

[0062] The first fuel pipe member 810 and the second fuel pipe member 820 are isolated from the engine 30 by the radiator 100 above the base plate member 600, and are isolated from the engine 30 by a crank pulley cover 910 below the base plate member 600.

[0063] The fuel hose is routed below the base plate member 600 above the power steering member 940, utilizing the axle bracket space between the left wall plate portion 710 and the right wall plate portion 720 of the wall plate member 700 serving as the axle bracket member.

[0064] The wall plate member 700 is provided with holes 721 for drawing out the first fuel pipe member 810 and the second fuel pipe member 820 connected to the engine 30 to the outside of the wall plate member 700 with respect to the left-right direction of the vehicle body.

[0065] The engine 30 is disposed between a left wall plate portion 710 and a right wall plate portion 720 .

[0066] The fuel hose is routed below the base plate member 600 by utilizing hole 721 provided in right wall plate portion 720, which is the right side frame of the axle bracket, so that the temperature rise of the fuel cooled by first fuel cooler 310 is suppressed when the fuel is pulled out from the inside of the engine compartment, which has a high temperature.

[0067] By utilizing crank pulley cover 910, which is an inner plate of the axle bracket, interference of the fuel hose with driving members such as the crank pulley and fan belt inside the axle bracket is suppressed.

[0068] Crank pulley cover 910 is a multi-function plate that not only suppresses such fuel hose interference when routing the fuel hose inside the axle bracket, but also suppresses the circulation of the engine fan air that has passed through the axle bracket space to radiator 100, thereby promoting a reduction in the number of parts.

[0069] Hole 721 through which the first fuel pipe member 810 extending from the fuel tank 32 to the first fuel cooler 310 via the fuel filter, the first fuel pipe member 810 extending from the first fuel cooler 310 to the inlet of the engine 30, and the second fuel pipe member 820 extending from the outlet of the engine 30 to the second fuel cooler 320 are inserted is a single long hole provided in the right side frame of the axle bracket and allows these three hoses to be routed together, thereby achieving stable hose routing.

[0070] A first fuel pipe member 810 drawn out to the outside of the wall plate member 700, and a second fuel pipe member 820 drawn out to the outside of the wall plate member 700 and connected to the engine 30, are routed through the inside of a cooling water drain hose 920 with respect to the left-right direction of the vehicle body.

[0071] The first fuel pipe member 810 extending from the fuel tank 32 to the first fuel cooler 310, the first fuel pipe member 810 extending from the first fuel cooler 310 to the inlet of the engine 30, and the second fuel pipe member 820 extending from the outlet of the engine 30 to the second fuel cooler 320 are routed, for example, through the space between a coolant drain hose 920, such as the drain hose of the radiator 100, and the outer wall surface of the right wall plate portion 720, which is the outer surface of the right side of the axle bracket, thereby achieving stable hose routing in the component parts of this machine.

[0072] The first fuel pipe member 810 extending from the fuel tank 32 to the first fuel cooler 310, the first fuel pipe member 810 extending from the first fuel cooler 310 to the inlet of the engine 30, and the second fuel pipe member 820 extending from the outlet of the engine 30 to the second fuel cooler 320 are routed through the space between the hydraulic piping member 930 and the outer wall surface of the right wall plate portion 720, thereby achieving further stabilization of the hose routing in the machine components.

[0073] (C) Next, the configuration and operation of the agricultural tractor of this embodiment will be described in more detail with reference mainly to Figures 18 to 21.

[0074] 18 to 21 are partial perspective views (numbers 17 to 20) of the oil cooler 200, the first fuel cooler 310, and the second fuel cooler 320 of the agricultural tractor according to the embodiment of the present invention.

[0075] A hole 711 is provided in the wall plate member 700 for drawing out the second fuel pipe member 820 connected to the fuel tank 32 to the outside of the wall plate member 700 with respect to the left-right direction of the vehicle body.

[0076] The fuel hose is routed below the base plate member 600 by utilizing hole 711 provided in left wall plate portion 710, which is the left side frame of the axle bracket, so that the temperature rise of the fuel cooled by the second fuel cooler 320 is suppressed when the fuel is pulled out from the inside of the engine compartment, which has a high temperature.

[0077] Hole 711, through which second fuel pipe member 820 extending from second fuel cooler 320 to fuel tank 32 and two hoses (not shown) connected to the power steering cylinder are inserted, is a single long hole provided in the left side frame of the axle bracket that can route these three hoses together, thereby achieving stable hose routing.

[0078] The shape of the hole 711 is similar to the shape of the hole 721, which facilitates design simplification.

[0079] In second fuel pipe member 820, which is routed from second fuel cooler 320 to fuel tank 32 through hole 601 provided in base plate member 600, not only is a hose connection performed at a position near hole 601 as described above, but second fuel pipe member 820 routed through hole 601 is returned to fuel tank 32 after being inserted into hole 711, thereby realizing easy assembly.

[0080] Furthermore, the second fuel pipe member 820 that is pulled out to the outside of the left wall plate portion 710 through the hole 711 passes through the inside of the stay member 950, which can also support hoses such as a hydraulic oil cooler hose and two power steering hoses, and is firmly held by the left wall plate portion 710, thereby achieving stable hose routing.

[0081] It may also be desirable to have an arrangement in which further hose connections, such as a second fuel pipe member 820, are made by utilizing the left wall plate portion 710 as such an axle bracket left side frame. [Industrial Applicability]

[0082] The work vehicle of the present invention can efficiently achieve a good cooling function according to the engine environmental performance, etc., and is useful for use in work vehicles such as agricultural tractors. [Explanation of symbols]

[0083] 10. Body 20 Operation Unit 21st Floor 22 Driver's seat 23 Steering wheel 24 Accelerator pedal 30 Engine 31 Bonnet 32 Fuel Tank 33 Battery 40 Front wheel 50 Rear wheel 60 Work equipment lifting mechanism 61 Top Links 62 Lower link 100 Radiator 200 Oil cooler 310 First Fuel Cooler 320 Secondary Fuel Cooler 321 Vertical cooling pipe section 322 Horizontal cooling pipe section 400 Support member 500 Retaining plate member 501 Fixing bolts 600 Base plate material 601 hole 700 Wall plate material 710 Left wall plate part 711 hole 720 Right wall plate part 721 hole 810 First fuel pipe member 820 Second fuel pipe component 910 Crank Pulley Cover 920 Cooling Water Drain Hose 930 Hydraulic piping components 940 Power steering parts 950 Stay material

Claims

[Claim 1] A radiator for cooling an engine attached to a vehicle body that uses fuel to generate power; an oil cooler disposed in front of the radiator; a first fuel cooler for cooling the fuel entering the engine side; a second fuel cooler for cooling the fuel exiting the engine side; a base plate member disposed below the first fuel cooler and the second fuel cooler; a wall plate member having a left wall plate portion disposed on a left side of the vehicle body and a right wall plate portion disposed on a right side of the vehicle body; It is equipped with At least a portion of the first fuel cooler is disposed forward of the oil cooler, At least a portion of the second fuel cooler is disposed above the oil cooler, a hole is provided in the base plate member for introducing a first fuel pipe member connected to the first fuel cooler and a second fuel pipe member connected to the second fuel cooler to a lower side of the base plate member between the left wall plate portion and the right wall plate portion; the first fuel pipe member and the second fuel pipe member are isolated from the engine by the radiator above the base plate member, and are isolated from the engine by a crank pulley cover below the base plate member; the wall plate member is provided with holes for drawing the first fuel pipe member and the second fuel pipe member connected to the engine outward from the wall plate member with respect to a vehicle body left-right direction; the engine is disposed between the left wall plate portion and the right wall plate portion, the first fuel pipe member drawn to the outside of the wall plate member, and the second fuel pipe member drawn to the outside of the wall plate member and connected to the engine, are routed through an inside of a cooling water drain hose with respect to the left-right direction of the vehicle body.

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