DE102018213659B4 - PIPE SYSTEM OF AN INTERCOOLER OF A VEHICLE - Google Patents

Abstract

An intercooler duct system for a vehicle having a front section, the vehicle front section comprising:an intercooler (9) which cools intake air;a radiator (8) behind the intercooler (9);a fan housing (7) comprising a accommodating a fan (7A) and disposed on a rearward surface of the radiator (8);an engine body (11) behind the fan case (7);a gas compressor (15) which compresses intake air and is located in the vicinity of a forward surface of an upper portion of the engine body (11); an intake manifold (21) on a rear surface of the engine body (11); and connected to the charge air cooler (9) at one of two transverse ends of the charge air cooler (9); and an intercooler outlet duct (60) supplying intake air cooled by the intercooler (9) to the intake manifold (21) and connected to the intercooler (9) at the other of the two transverse ends of the intercooler (9),the intercooler outlet duct (60 ) a central duct section (62) which is located between the fan housing (7) and the engine body (11) and extends along a transverse axis of the vehicle (1); andthe intermediate pipe portion (62) of the charge air cooler outlet pipe (60) is fixed to the engine body (11) at a lower portion of the engine body (11); whereinthe lower portion of the engine body (11) includes an oil pan (14) located in a lower portion of the engine body (11); and the intermediate duct section (62) of the charge air cooler outlet duct (60) is attached to at least a forward facing surface of the oil pan (14).

Description

[Technical Field]

The present invention relates to a line system of a charge air cooler of a vehicle.

[Background Art]

In vehicles, such as automobiles, the process of supercharging is used to increase engine power. In such supercharged engines, charge air coolers are used to cool the compressed intake air to reduce the temperature of the intake air and thereby improve charging efficiency.

the JP 2000 - 45 780A discloses a known charge air cooler duct system. In this known system, a radiator and an intercooler are located side by side near the front of an engine compartment of a vehicle. A turbocharger is installed behind an upper portion of a rearward surface of the engine. The charge air cooler, located forward of an engine-mounted transmission, includes a lower tank that communicates with a charge air cooler inlet line leading from the turbocharger, and an upper tank. The upper tank communicates with a charge air cooler outlet line for supplying cooled compressed air to the engine's intake manifold.

In the known duct system, the charge air cooler inlet duct comprises a vertically extending duct section located behind the charge air cooler to connect the turbocharger and the lower tank of the charge air cooler.

[State of the art]

the DE 10 2012 221 998 A1 discloses a charge air cooler duct system for a vehicle having a front portion. The front portion of the vehicle includes an intercooler that cools intake air, a cooler behind the intercooler, a gas compressor that compresses intake air and is located in the vicinity of a forward surface of an upper portion of the engine body, an intake manifold on a rear surface of the engine body, an intercooler inlet duct which supplies intake air compressed by the gas compressor to the intercooler and is connected to the intercooler at one of two transverse ends of the intercooler, and an intercooler outlet duct which supplies intake air cooled by the intercooler to the intake manifold and at the other of the two transverse ends of the charge air cooler is connected to the charge air cooler. The charge air cooler outlet duct has a central duct section and extends along a lateral axis of the vehicle.

the DE 10 2010 018 356 A1 discloses a charge air cooler duct system for a vehicle having a front portion. The front portion of the vehicle includes an intercooler that cools intake air, a gas compressor that compresses intake air and is located in the vicinity of a forward surface of an upper portion of the engine body, an intercooler inlet duct that supplies intake air compressed by the gas compressor to the intercooler , and a charge air cooler outlet line that supplies intake air cooled by the charge air cooler to the intake manifold. At this time, the intermediate pipe portion of the intercooler discharge pipe is fixed to the engine body at a lower portion of the engine body.

[Summary of the Invention]

[Technical Task]

Problematic with the in the JP 2000 - 45 780A known charge air cooler line system is that the line section extending vertically and located behind the charge air cooler can impair the air flow discharged from the charge air cooler to the outside air while driving, so that the cooling capacity of the charge air cooler is reduced.

In this regard, an object of the present invention is to provide a charge air cooler duct system for a vehicle, which not only improves the cooling performance of a charge air cooler but also maintains the stability of the effect of the improved cooling duct.

[solution of the task]

In order to achieve the above object, according to the present invention, there is provided an intercooler duct system for a vehicle having a front portion. The front portion of the vehicle includes: an intercooler that cools intake air; a radiator behind the intercooler, a fan case accommodating a fan and disposed on a rear surface of the radiator; an engine body behind the fan housing; a gas compressor that compresses intake air and is located in the vicinity of a forward surface of an upper portion of the engine body; an intake manifold on a rearward surface of the engine body; a charge air cooler inlet line compressed by the gas compressor supplying intake air to the charge air cooler and connecting to the charge air cooler at one of two transverse ends of the charge air cooler; and a charge air cooler outlet pipe that supplies intake air cooled by the charge air cooler to the intake manifold and is connected to the charge air cooler at the other of the two transverse ends of the charge air cooler; the charge air cooler outlet duct has a middle duct section located between the fan housing and the engine body and extending along a lateral axis of the vehicle; and the intermediate pipe portion of the intercooler discharge pipe is fixed to the engine body at a lower portion of the engine body. Here, the lower portion of the engine body includes an oil pan located in a lower portion of the engine body; and the middle pipe section of the charge air cooler outlet pipe is fixed to at least a forward surface of the oil pan.

[Advantageous Effect of the Invention]

As just described, the present invention not only improves the cooling performance of an intercooler but also maintains the stability of the effect of the improved cooling performance.

character list

• 1 12 is a top plan view of a front portion of a vehicle, showing an intercooler duct system for a vehicle according to the present invention.
• 2 14 is a perspective view of a power train showing the charge air cooler piping system for a vehicle.
• 3 12 is a vehicle front portion left side view showing the charge air cooler piping system for a vehicle.
• 4 12 is a bottom plan view of the front portion of the vehicle, showing the charge air cooler piping system for a vehicle.
• 5 Fig. 14 is a perspective view of an oil pan with a center pipe section.
• 6 12 is a perspective view of the oil pan.
• 7 12 is a bottom plan view of the oil pan.

[Detailed description]

In the present embodiment of the present invention, an intercooler duct system for a vehicle having a front portion is provided. The front portion of the vehicle includes: an intercooler that cools intake air; a radiator behind the intercooler, a fan case accommodating a fan and disposed on a rear surface of the radiator; an engine body behind the fan housing; a gas compressor that compresses intake air and is located in the vicinity of a forward surface of an upper portion of the engine body; an intake manifold on a rearward surface of the engine body; a charge air cooler inlet pipe that supplies intake air compressed by the gas compressor to the charge air cooler and is connected to the charge air cooler at one of two transverse ends of the charge air cooler; and a charge air cooler outlet pipe that supplies intake air cooled by the charge air cooler to the intake manifold and is connected to the charge air cooler at the other of the two transverse ends of the charge air cooler. The charge air cooler duct system is characterized in that the charge air cooler outlet duct has a middle duct portion which is located between the fan housing and the engine body and extends along a transversal axis of the vehicle; and the intermediate pipe portion of the intercooler discharge pipe is fixed to the engine body at a lower portion of the engine body. As just described, the charge air cooler piping system according to the present embodiment of the present invention not only improves the cooling performance of a charge air cooler but also maintains the stability of the effect of the improved cooling performance.

[Embodiment(s)]

Hereinafter, an embodiment of an intercooler piping system for a vehicle according to the present invention will be described with reference to the accompanying drawings.

the 1 until 7 10 are views of the charge air cooler piping system for a vehicle. In the 1 until 7 The arrows labeled "UP", "FRONT", "RIGHT" and "LEFT" refer to directions as seen by a vehicle occupant seated in the driver's seat of the vehicle.

First, the structure of the embodiment will be described. Referring to the 1 until 4 , a vehicle 1 includes a body 1A shown by the imaginary line. A front portion of the body 1A is formed by body parts such as a front bumper and side moldings, which are not shown. The front portion of the body 1A is formed with an engine room 6 through the front bumper and the side moldings is surrounded. During running of the vehicle 1 in the outside air, air is taken into the engine room 6 through an opening on the front of the body 1 .

An engine body 11 and a transmission 41 connected to the body 11 at its left end are mounted inside the engine room 6 .

The engine body 11 includes a cylinder block 12, a cylinder head 13 on top of the cylinder block 12, and an oil pan 14 on the underside of the cylinder block 12. As just described, the oil pan 14 forms a lower portion of the engine body 11. A cylinder head cover 17 is on the cylinder head 13 attached. The transmission 41 communicates with the cylinder block 12 and the oil pan 14 .

The cylinder block 12 has a plurality of cylinders, not shown. A piston moves vertically back and forth in a cylinder. The reciprocating movement of the piston is converted into rotation of a crankshaft, not shown, by a connecting rod, not shown, because the piston is connected to the crankshaft via the connecting rod.

The cylinder head 13 is formed with a plurality of intake ports, not shown, and a plurality of exhaust ports, not shown. The intake ports admit air into the cylinders, while the exhaust ports remove exhaust gases from the cylinders resulting from combustion within the cylinders.

In the present embodiment, the intake ports are formed within a rearward surface of the cylinder head 13, while the exhaust ports are formed within a forward surface of the cylinder head 13. An intake manifold 21 is located behind the engine compartment 11 and is connected to the intake ports (see Fig 3 ). An exhaust manifold, not shown, is located in front of the engine compartment 11 and connected to the exhaust ports.

Oil for lubricating the engine body 11, the crankshaft and the pistons is stored in the oil pan 14 . The gearbox 41 changes speed ratios between the crankshaft and its output shaft.

A gas compressor 15, which is located in front of the cylinder block 12, compresses the intake air. In other words, the gas compressor 15 is located in front of an upper portion of the engine body 11. Also, an intercooler 9 for cooling intake air is arranged inside the engine compartment 6. As shown in FIG. A cooler 8 is located behind the intercooler 9.

Referring to 1 a fan case 7 is attached to a rear surface of the radiator 8 . In the fan housing 7, two fans 7A are accommodated, which are arranged side by side. The motor body 11 is located behind the fan housing 7.

The engine body 11 and the radiator 8 are connected to each other by a coolant pipe. The coolant cooled at the radiator 8 is supplied to the engine body 11 via the coolant line. Thereby, the engine body 11 is cooled.

The coolant heated due to the heat exchange at the engine body 11 is supplied to the radiator 8 via a further coolant line. The coolant supplied to the radiator 8 is cooled by the outside air taken into the engine room 6 . The cooled coolant is supplied to the engine body 11 again.

In the present embodiment, the gas compressor 15 is a turbocharger driven by a turbine wheel driven by the engine's exhaust gases.

The gas compressor 15 includes a turbine housing 15A and a compressor housing 15B. In the turbine housing 15A, an unillustrated turbine wheel is housed and rotatably supported.

The turbine wheel is driven by the exhaust gases supplied from the exhaust ports of the cylinder head 13 to the turbine housing 15A of the gas compressor 15 through the exhaust manifold.

Referring to the 2 , 3 and 4 An exhaust pipe 32 is connected to the turbine housing 15A of the gas compressor 15. The exhaust pipe 32 passes a forward surface of the engine body 11 in a downward direction, passes a lower surface of the engine body 11 in a rearward direction, and extends from the turbine housing 15A along the rearward direction of the vehicle 1.

At a position immediately below the turbine housing 15A of the gas compressor 15, the exhaust pipe 32 forms a catalyst 31 for purifying the exhaust gases. The exhaust line 32 has a larger diameter at this point, so that the catalytic converter 31 has a larger diameter in comparison to the other parts of the exhaust line 32 . After flowing through the Tur bin housing 15A, the exhaust gases are discharged from the vehicle 1 through the exhaust pipe 32 .

In the compressor housing 15B, an unillustrated compressor wheel is housed and rotatably supported. The compressor wheel is rotatable with the turbine wheel.

The compressor housing 15B supplies the intake air filtered in an air cleaner (not shown) to the charge air cooler 9 through a charge air cooler inlet line 50 described below. The intercooler 9 cools the air coming from the compressor housing 15B by exchanging heat with the air entering the engine room 6 in the outside air during driving.

While the engine's exhaust gases drive the turbine wheel, the compressor wheel, which rotates with the turbine wheel, compresses the intake air in the gas compressor 15 . After being cooled by the charge air cooler 9, the cooled compressed intake air enters a charge air cooler outlet line 60, described below.

The gas compressor 15 has a wastegate valve 16 . The wastegate valve 16 diverts exhaust gases from the turbine wheel to regulate the rotational speed of the turbine speed, which in turn regulates the speed of the compressor.

The intercooler 9 is located in front of a lower portion of the radiator 8. The intercooler 9 extends in the same direction as the radiator 8, i.e. parallel to the transversal axis of the vehicle 1.

Referring to the 1 and 2 , the intercooler inlet duct 50, which is hollow, is connected to the intercooler 9 at its one or right end. This charge air cooler inlet line 50 supplies the intake air compressed in the gas compressor 15 to the charge air cooler 9 . The right end of the charge air cooler 9 is an example of one of the two transverse ends of the claimed charge air cooler 9.

The charge air cooler outlet pipe 60, which is hollow, is connected to the charge air cooler 9 at its other or left end. The charge air cooler outlet line 60 feeds the compressed intake air cooled in the charge air cooler 9 to the intake manifold 21 . The left end of the charge air cooler 9 is an example of the other of the two transverse ends of the claimed charge air cooler 9.

The intercooler 9 includes a core 9C, an inlet tank 9A connected to the right end of the core 9C, and an outlet tank 9B connected to the left end of the core 9C. The intake tank 9A communicates with the intercooler intake pipe 50, temporarily stores intake air from the intercooler intake pipe 50, and supplies the intake air to the core 9C.

The core 9C cools the intake air by exchanging heat with the air entering the engine room 6 in the outside air during running. The outlet tank 9B communicates with the intercooler outlet pipe 60 . The discharge tank 9B temporarily stores the intake air cooled in the core 9C and supplies the cooled intake air to the intercooler discharge pipe 60 .

In the present embodiment, the engine body 11 is located behind the fan case 7. The gas compressor 15 is installed in front of the front surface of the upper portion of the engine body 11. As shown in FIG. The large-diameter catalytic converter 31 is located immediately below the catalytic converter 31.

As in 3 best visible, a space 80 is formed behind the fan housing 7 . The space 80 is defined by the fan case 7, the engine body 11, the gas compressor 15 and the catalyst 31. FIG. The upper portion of the space 80 is narrow because the gas compressor 15 and the catalyst 31 are arranged there. The lower portion 80A of the space 80 is wide because the gas compressor 15 is not arranged there.

Referring to the 1 , 3 and 4 , the charge air cooler outlet pipe 60 comprises a charge air cooler side connector 61, a middle pipe section 62, a relay 63, a rear extension piece 64 and an intake manifold side connector 65.

The intercooler-side port 61 communicates with the intercooler outlet tank 9B and extends from a left end of the intercooler 9 toward a forward lower portion of the transmission 41. Specifically, the intercooler-side port 61 leads at the left end portion of the radiator 8 and the fan housing 7 and extends downwards to the right (see 1 and 3 ). The intercooler-side joint 61 is made of an elastic material such as rubber.

The middle pipe portion 62 communicates with the intercooler side port 61 at its downstream end or outlet end, and extends across a gap between the fan case 7 and the oil pan 14 of the engine body 11 from the right end side opposite end side (see 3 and 4 ). The middle line section 62 consists of a steel tube.

The relay 63 communicates with the central conduit section 62 at its right end or outlet end. The relay 63 is bent backwards. The relay 62 is made of an elastic material such as rubber.

The rear extension piece 64 communicates with the relay 63 at its right end or outlet end. The rear extension piece 64 extends rearward along the right side surface of the oil pan 14 to near the right rear portion of the oil pan 14. In the vicinity of the right rear portion of the oil pan 14, the rear extension piece 64 is bent upward. The rear extension piece 64 consists of a steel tube.

The intake manifold side port 65 connects the rear end or outlet end of the rear extender 64 to the intake manifold 21. The intake manifold side port 65 extends to the upper left. The intake manifold side joint 65 is made of an elastic material such as rubber.

As in 5 As best seen, the central conduit portion 62 is attached to the lower portion of the engine body 11 . In addition, the middle pipe section 62 is fixed to at least the forward surface of the oil pan 14 .

Referring to the 6 and 7 and further referring to 5 Specifically, the oil pan 14 includes a first joint 14A where the oil pan 14 is joined to the cylinder block 12 and a second joint 14B where the oil pan 14 is joined to the transmission 41 .

In addition, the second joint 14B includes a protruding portion 14B1 which protrudes forward from a forward surface 14A1 of the first joint 14A1. The middle pipe portion 62 is fixed to the protruding part 14B1 of the oil pan 14 at least.

The oil pan 14 has an oil filter mounting portion 14C protruding forward beyond a forward end of the oil pan 14 . The oil filter mounting portion 14C has an oil filter mounting surface 14C1 on its underside (see Fig 7 ) to which an oil filter 22 is attached.

The oil filter mounting portion 14C has at its forward end a middle pipe portion support part 14C2 to which the middle pipe portion 62 of the intercooler outlet pipe 60 is fixed. As described above, the center pipe portion 62 is fixed at two locations, i.e., the projecting part 14B1 and the center pipe portion support part 14C2, which are formed on the forward side of the oil pan 14.

Referring to the 4 and 7 For example, the oil pan 14 has rear extension support portions 14D and 14E at its right end. The rear extender support portions 14D and 14E project to the right. The rear extension piece 64 of the intercooler outlet pipe 60 is fixed to the oil pan 14 by these rear extension piece support parts 14D and 14E.

Referring to 3 the exhaust pipe 32 has an inclined part 34 extending along the axis Ls, which is inclined forwards with respect to the vehicle (1) away from a vertical axis Lv, a vertical part 33 extending from a to upward end of the inclined part 34 and then connected to the gas compressor 15, and a horizontal part 35 extending from a downward end of the inclined part 34 rearward. The central duct section 62 is located in front of this inclined part 34. The axis Ls represents a claimed axis inclined forward.

More specifically, when viewing the engine body 11 in a direction along the transversal axis of the vehicle 1, the center duct portion 62 is located in a space 81 defined by a first imaginary line L1 extending along a forward surface of the vertical member 33 , a second imaginary line L2 extending along a downward surface of the horizontal part 35, and a third imaginary line L3 extending along a forward surface of the inclined part 34.

This space 81, which is in space 80 previously described (see 3 ) is included is adjacent a forward facing surface of the lower portion of the body 11 and extends under the gas compressor 15 and the catalytic converter 31. Thus, the space 81 offers a large spatial area along the longitudinal axis of the vehicle 1.

• Während der Fahrt des Fahrzeugs 1 an der Außenluft, dringt die Außenluft von vom in den Motorraum 6 ein. Die in den Motorraum 6 eintretende Außenluft strömt, wie durch die schwarzen Pfeile (siehe 1) angedeutet, nach hinten. Durch die Außenluft werden der Kühler 8 und der Ladeluftkühler 9, die sich in der Nähe der Vorderseite des Motorraums 6 befinden, gekühlt. Die durch den Ladeluftkühler 9 und durch den unteren Abschnitt des Kühlers 8 strömende Außenluft wird in Richtung des unteren Teils 80A des Raums 80 abgeführt.

Features are described below:

• During running of the vehicle 1 in the outside air, the outside air invades the engine room 6 from the front. The outside air entering the engine compartment 6 flows as shown by the black arrows (see 1 ) indicated backwards. The radiator 8 and the intercooler 9 located near the front of the engine room 6 are cooled by the outside air. The outside air flowing through the intercooler 9 and the lower portion of the radiator 8 is discharged toward the lower part 80</b>A of the space 80 .

In the present embodiment, the intermediate duct portion 62 of the intercooler outlet duct 60 located between the fan case 7 and the engine body 11 extends along the transversal axis of the vehicle 1. The intermediate duct portion 62 of the intercooler outlet duct 60 is at the lower portion of the engine body 11 attached to the engine body 11.

With this configuration, the intermediate pipe portion 62 of the intercooler outlet pipe 60 can be spaced rearwardly from the intercooler 9 and the radiator 8 in the vicinity of the engine body 11 . Thereby, the lower portion 80A of the space 80 formed behind the intercooler 9 and the radiator 8 is lengthened.

For this reason, the outside air flowing through the intercooler 9 and the lower portion of the radiator 8 can flow rearward through the intercooler outlet duct 60 without interference. This improves the cooling performance of the intercooler 9 and the radiator 8.

In addition, since the intermediate duct portion 62 is fixed to the lower portion of the engine body 11, the intercooler outlet duct 60 is prevented from moving from its proper position and interrupting the flow of outside air. This keeps the stability of the effect of the improved cooling performance.

This leads not only to an improvement in the cooling performance of the intercooler 9 but also to the preservation of the improved cooling performance.

In the present embodiment, the lower portion of the engine body 11 includes the oil pan 14 located in the lower portion of the engine body 11 . The intermediate duct portion 62 of the charge air cooler outlet duct 60 is attached to at least the forward surface of the oil pan 14 .

This allows the center pipe portion 62 to be located near the lower portion of the engine body 11 because the center pipe portion 62 is fixed to the forward surface of the oil pan 14 located in the lower portion of the engine body 11 .

In addition, the center duct portion 62 can be spaced rearward from the fan case 7, thereby preventing the flow of air discharged rearward from the fan case 7 through the center duct portion 62, so that the cooling performance of the intercooler 8 and the radiator 7 is improved.

Suppose that the forward side wall of the cylinder block 12 of the engine body 11 is formed with supporting parts having the same function as the projecting part 14B1 and the central pipe portion supporting part 14C2 (see Fig 5 ). Such mounting parts must not interfere with the function of an oil passage and a cooling passage (not shown) formed in the cylinder block 12. Thus, the installation possibilities of the bracket parts on the cylinder block 12 are limited.

In addition, the oil pan 14 is formed with holding parts for holding the central pipe section 62 firmly. By preventing an oil passage and a cooling passage from being formed in the oil pan 14, flexibility in selecting an installation location of the protruding part 14B1 and the central pipe portion supporting part 14C2 on the oil pan 14 is improved.

In the present embodiment, the engine body 11 includes the cylinder block 12 placed on the oil pan 14 . The transmission 41 is connected to the cylinder block 12 and the oil pan 14 .

The oil pan 14 has a first joint 14A where the oil pan 14 is joined to the cylinder block 12 and a second joint 14B where the oil pan 13 is joined to the transmission 41 . The second joint 14B has the protruding portion 14B1 which protrudes forward beyond the forward surface 14A1 of the first joint 14A1. The middle pipe portion 62 is fixed to the protruding part 14B1 of the oil pan 14 at least.

Since the middle pipe portion 62 is fixed to the oil pan 14 at the forward protruding part 41B1, the middle pipe portion 62 can be arranged without interfering with the transmission 14.

The portion of the oil pan 14 that forms the joint between the oil pan 14 and the transmission 41 is thicker than the other portion of the oil pan 14, thereby reducing the effects of vibration and deformation of the oil pan 14 on the central pipe portion 61.

Referring to the 5 until 7 , the oil pan 14 has the oil filter mounting portion 14C protruding forward beyond a forward end of the oil pan 14 in the present embodiment. The oil filter mounting portion 14C has an oil filter mounting surface 14C1 on its underside (see Fig 7 ) to which an oil filter 22 is attached. The oil filter mounting portion 14C has at its forward end the middle pipe portion support part 14C2 to which the middle pipe portion 62 of the intercooler outlet pipe 60 is fixed.

This allows the center pipe portion 62 to be arranged without interfering with the oil pan 14 and the oil filter 22 because the oil filter mounting portion 14C protrudes forward beyond the forward end of the oil pan 14, and the oil filter mounting portion 14C at its forward end the middle pipe section support part 14C2 to which the middle pipe section 62 is fixed.

In addition, the oil filter 22 is attached to the oil filter mounting surface 14C1, so the weight of the oil filter 22 is likely to cause vibration of the oil filter mounting portion 14C. However, the vibration of the oil filter mounting portion 14C is restricted by the oil filter mounting portion 14C being supported by the central pipe portion 62. FIG.

In the present embodiment, the exhaust pipe 32 connected to the gas compressor 15 passes the front surface of the engine body 11 and the lower surface of the engine body 11 and extends in the rearward direction of the vehicle 1. The exhaust pipe 32 has the inclined part 34 , which extends along an axis Ls inclined forward with respect to a vertical axis Lv of the vehicle. The middle pipe section 62 is in front of the inclined part 34.

The middle pipe section 62 is located in front of the inclined part 34 so that the middle pipe section 62 can be arranged closer to the engine body 11 . As a result, the engine 10 including the engine body 11 and its auxiliary machines is downsized by reducing its size in a direction along the longitudinal axis of the vehicle 1 .

In the present embodiment, the exhaust pipe 32 has the vertical part 33 extending upward from an upward end of the inclined part 34 and then connected to the gas compressor 15, and the horizontal part 35 extending downward from a directed end of the inclined part 34 extends rearward. Viewing the engine body 11 in a direction along the transversal axis of the vehicle 1, the central duct portion 62 is located in the space 81 defined by a first imaginary line L1 extending along a forward surface of the vertical member 33, a second an imaginary line L2 extending along a downward surface of the horizontal part 35 and a third imaginary line L3 extending along a forward surface of the inclined part 34.

This allows the middle pipe section 62 to be located in the space 81 surrounded by the first imaginary line L1, the second imaginary line L2 and the third imaginary line L3 extending along a forward surface of the inclined part 34, so that the motor 10, which includes the engine body 11 and its auxiliary machines, is downsized by reducing its size in a direction along the longitudinal axis of the vehicle 1.

Although the disclosure relates to the present embodiment but is not limited thereto, it will be apparent to those skilled in the art that changes can be made without departing from the principle of the present invention. All possible modifications and equivalents are to be considered as covered by the appended claims.

Reference List

1

Vehicle,

6

engine compartment,

7

fan housing,

7A

Fan,

8th

Cooler,

9

intercooler,

11

engine body,

12

cylinder block,

14

Sump,

14A

first liaison,

14A1

forward facing surface,

14B

second liaison,

14B1

protruding part,

14C

oil filter assembly section,

14C1

oil filter mounting surface,

14C2

support part for the middle line section,

15

gas compressor,

21

intake manifold,

22

oil filter,

32

exhaust pipe,

33

vertical part,

34

inclined part,

34A

forward facing surface,

35

horizontal part,

41

Transmission,

50

intercooler inlet line,

60

intercooler outlet line,

62

middle line section,

81

Space,

L1

first imaginary line

L2

second imaginary line

L3

third imaginary line

Ls

axis (forward inclined axis),

lv

vertical axis

Claims (5)

Charge air cooler duct system for a vehicle having a front section, the front section of the vehicle comprising: an intercooler (9) that cools intake air; a cooler (8) behind the intercooler (9), a fan case (7) accommodating a fan (7A) and disposed on a rear surface of the radiator (8); a motor body (11) behind the fan case (7); a gas compressor (15) that compresses intake air and is located in the vicinity of a forward surface of an upper portion of the engine body (11); an intake manifold (21) on a rearward surface of the engine body (11); a charge air cooler inlet pipe (50) which supplies intake air compressed by the gas compressor (15) to the charge air cooler (9) and is connected to the charge air cooler (9) at one of two transverse ends of the charge air cooler (9); and an intercooler outlet duct (60) supplying intake air cooled by the intercooler (9) to the intake manifold (21) and connected to the intercooler (9) at the other of the two transverse ends of the intercooler (9), the charge air cooler outlet duct (60) has a central duct section (62) located between the fan housing (7) and the engine body (11) and extending along a transverse axis of the vehicle (1); and the intermediate pipe portion (62) of the charge air cooler outlet pipe (60) is fixed to the engine body (11) at a lower portion of the engine body (11); whereby the lower portion of the engine body (11) includes an oil pan (14) located in a lower portion of the engine body (11); and the intermediate duct section (62) of the charge air cooler outlet duct (60) is fixed to at least a forward-facing surface of the oil pan (14). Intercooler line system claim 1 , characterized in that: the engine body (11) comprises a cylinder block (12) resting on the oil pan (14); the transmission (41) is connected to the cylinder block (12) and the oil pan (14); the oil pan (14) has a first joint (14A) where the oil pan (14) is joined to the cylinder block (12) and a second joint (14B) where the oil pan (14) is joined to the transmission (41). is, has; the second joint (14B) has a protruding portion (14B1) projecting forward from a forward surface (14A1) of the first joint (14A1); and the middle pipe section (62) is fixed at least to the protruding part (14B1) of the oil pan (14). Intercooler line system claim 1 or 2 , characterized in that: the oil pan (14) has an oil filter mounting portion (14C) protruding forward beyond a forward end of the oil pan (14); the oil filter mounting portion (14C) has an oil filter mounting surface (14C1) on its underside to which an oil filter (22) is mounted; and the oil filter mounting portion (14C) has at its forward end a middle pipe portion support part (14C2) to which the middle pipe portion (62) of the intercooler outlet pipe (60) is fixed. Intercooler line system according to one of the preceding Claims 1 until 3 , characterized in that: an exhaust pipe (32) connected to the gas compressor (15), passing a front surface of the engine body (11) and a lower surface of the engine body (11), and extending in a rearward direction of the vehicle (1). ; the exhaust pipe (32) has an inclined part (34) extending along an axis (Ls) inclined forward with respect to the vehicle (1), away from a vertical axis (Lv); and the middle duct section (62) is in front of the inclined part (34). Intercooler line system claim 4 characterized in that: the exhaust pipe (32) has a vertical part (33) extending upward from an upward end of the inclined part (34) and then connected to the gas compressor (15), and a horizontal part (35) extending rearward from a downward end of the inclined portion (34); and in a view of the engine body (11) in a direction along the transversal axis of the vehicle (1), the center duct portion (62) lies in a space (81) defined by a first imaginary line (L1) extending along a forward-facing surface of the vertical part (33), a second imaginary line (L2) extending along a downward-facing surface of the horizontal part (35), and a third imaginary line (L3) extending along a forward directed surface of the inclined part (34).

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