Intake device for vehicle

Abstract

To provide an intake device for a vehicle, which can improve the charging efficiency of intake air.SOLUTION: An inlet hose 41 and an outlet hose 50 are connected to the front side of an air cleaner 29, and the outlet hose 50 has an inclined portion 51 that inclines so as to approach an air intake 42A as it goes toward the rear of a vehicle and guides air to the air intake 42A. Besides, the air intake 42A is disposed opposite the inclined portion 51 in the vehicle width direction. In addition, when viewed from above the vehicle, a space S is formed between the air intake 42A and the inclined portion 51, and in front of the space S, an air discharge port 31B of a bumper garnish 30 is provided for covering an engine room 21 from the front. Moreover, a cylindrical resonator portion 52 is connected to the upstream end portion of the outlet hose 50, and the resonator portion 52 is disposed immediately behind the rear of the inlet hose 41 and extends in the vehicle width direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an intake system for a vehicle. [Background technology]

[0002] Patent Document 1 describes an internal combustion engine in which an inlet of an intake duct that introduces outside air is provided at one end side in the width direction of the vehicle, and this inlet opens toward the other end side in the width direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6305079 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology described in Patent Document 1, the intake duct inlet is open toward one end in the vehicle width direction. Therefore, while air introduced into the engine compartment from outside the vehicle flows toward the rear of the vehicle, the intake direction of the intake duct is the vehicle width direction, making it difficult for air to be drawn into the intake duct, which could reduce the efficiency of filling the intake air.

[0005] The present invention has been made in view of the above-mentioned circumstances, and has as its object to provide an intake device for a vehicle that can improve the charging efficiency of intake air. [Means for solving the problem]

[0006] The present invention is an intake device for a vehicle comprising: an engine arranged in an engine compartment at the front of the vehicle; an inlet hose arranged in the engine compartment, having an air intake at its upstream end that opens facing one side in the vehicle width direction, and having its downstream end connected to an air cleaner; and an outlet hose arranged in the engine compartment, having its upstream end connected to the air cleaner and its downstream end connected to the engine, wherein the inlet hose and the outlet hose are connected to the front of the air cleaner, and the outlet hose is inclined so as to approach the air intake as it extends toward the rear of the vehicle, and has an inclined portion that guides air to the air intake, and the air intake is arranged opposite the inclined portion in the vehicle width direction. [Effects of the Invention]

[0007] As described above, according to the present invention, it is possible to provide an intake device for a vehicle that can improve the charging efficiency of intake air. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view of the front part of a vehicle equipped with a vehicle intake device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view of a vehicle intake device according to one embodiment of the present invention. [Figure 3] FIG. 3 is a front view of a vehicle intake device and a bumper garnish according to one embodiment of the present invention. [Figure 4] FIG. 4 is a left side view of a vehicle intake device according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] A vehicle intake device according to one embodiment of the present invention includes an engine located in an engine compartment at the front of the vehicle, an inlet hose located in the engine compartment and having an air intake at its upstream end that opens toward one side of the vehicle width direction and whose downstream end is connected to an air cleaner, and an outlet hose located in the engine compartment and having its upstream end connected to the air cleaner and its downstream end connected to the engine, wherein the inlet hose and the outlet hose are connected to a front surface of the air cleaner, the outlet hose is inclined toward the air intake as it extends toward the rear of the vehicle and has an inclined portion that guides air to the air intake, and the air intake is located opposite the inclined portion in the vehicle width direction. This allows the vehicle intake device according to one embodiment of the present invention to improve the charging efficiency of intake air. [Example]

[0010] An intake device for a vehicle according to an embodiment of the present invention will be described below with reference to the drawings. Figures 1 to 4 are diagrams showing an intake device for a vehicle according to an embodiment of the present invention. In Figures 1 to 4, the up-down, front-rear, left-right directions refer to the front-rear direction of the vehicle, the left-right direction of the vehicle (vehicle width direction) and the up-down direction of the vehicle (vehicle height direction).

[0011] 1, a bumper garnish 30 serving as a vehicle body member extending in the vehicle width direction is provided at the front of a vehicle 1. The bumper garnish 30 is provided between a hood (not shown) and a bumper.

[0012] An engine room 21 is formed behind the bumper garnish 30 in the front part of the vehicle 1. An engine 22 is disposed in the engine room 21. The engine 22 includes an engine body 22A, an air cleaner 29 provided on an upper part of the engine body 22A, and the like.

[0013] The engine body 22A includes a cylinder head cover 23, a cylinder head (not shown) connected to the lower part of the cylinder head cover 23, a cylinder block (not shown) connected to the lower part of the cylinder head, and an oil pan (not shown) connected to the lower part of the cylinder block.

[0014] The cylinder block is provided with a plurality of cylinders (not shown). Pistons (not shown) are housed in the cylinders, and the pistons reciprocate up and down relative to the cylinders. The pistons are connected to a crankshaft (not shown) via connecting rods (not shown), and the reciprocating motion of the pistons is converted into rotational motion of the crankshaft via the connecting rods. The engine body 22A is arranged transversely in the engine room 21 so that the plurality of cylinders are aligned in the width direction of the vehicle 1.

[0015] The bumper garnish 30 is formed with a vehicle body side intake duct 31, which takes in air from the front of the vehicle into the engine compartment 21.

[0016] An inlet hose 41 is provided above the engine compartment 21 and behind the vehicle body-side intake duct 31 as an engine-side intake duct that supplies air to the engine 22. An air intake port 42A that opens toward one side in the vehicle width direction (to the right) is formed at the upstream end of the inlet hose 41. The downstream end of the inlet hose 41 is connected to the air cleaner 29.

[0017] In detail, the inlet hose 41 has an upstream passage section 42 extending from the air intake 42A to the other side (left) of the vehicle width direction, and a downstream passage section 43 that turns back at the left end of the upstream passage section 42 and extends to the right, with the air intake 42A formed at the upstream end of the upstream passage section 42, and the downstream end of the downstream passage section 43 connected to the air cleaner 29 behind the air intake 42A.

[0018] The inlet hose 41 is disposed above the cylinder head cover 23 and is supported by the cylinder head cover 23 .

[0019] An outlet hose 50 is provided above the engine compartment 21 and behind the vehicle body-side intake duct 31. The upstream end of the outlet hose 50 is connected to the air cleaner 29, and the downstream end of the outlet hose 50 is connected to the engine 22.

[0020] The inlet hose 41 and the outlet hose 50 are connected to the front surface of the air cleaner 29. More specifically, the inlet hose 41 is connected to the lower part of the front surface of the air cleaner 29, and the outlet hose 50 is connected to the upper part of the front surface of the air cleaner 29. The interior of the air cleaner 29 is divided into an upper space and a lower space by an air cleaner element (not shown) that filters the air. Air introduced from the inlet hose 41 into the lower space of the air cleaner 29 passes through the air cleaner element, moves to the upper space, and is supplied to the engine 22 via the outlet hose 50.

[0021] 3, the vehicle-side intake duct 31 has an air outlet 31B that opens toward the rear of the vehicle and has a rectangular cross section. The vehicle-side intake duct 31 has an air intake 31A that opens toward the front of the vehicle and has a rectangular cross section.

[0022] The vehicle body side intake duct 31 has a ceiling wall 31C located at its upper part, a bottom wall 31D located at its lower part, a side wall 31E located on its left side, and a side wall 31F located on its right side.

[0023] The flow path of the vehicle-body air intake duct 31 narrows toward the rear so that the opening area of ​​the air discharge port 31B is smaller than that of the vehicle-body air intake port 31A. This makes the flow rate of the air discharged from the air discharge port 31B faster than the flow rate of the air taken in through the vehicle-body air intake port 31A, thereby preventing air from accumulating in the engine compartment 21.

[0024] 2 and 3, outlet hose 50 is inclined toward air intake 42A toward the rear of the vehicle and has an inclined portion 51 that guides air to air intake 42A. Air intake 42A is disposed opposite inclined portion 51 in the vehicle width direction.

[0025] 1, when viewed from above the vehicle, a space S is formed between the air intake 42A and the inclined portion 51. In addition, in front of the space S, an air exhaust port 31B of the bumper garnish 30 that covers the engine compartment 21 from the front is provided as shown in FIG.

[0026] 1 and 4, a cylindrical resonator section 52 is connected to the upstream end of outlet hose 50. Resonator section 52 is disposed immediately behind (behind) the rear of inlet hose 41 and extends in the vehicle width direction.

[0027] Next, the operation will be described. When the vehicle 1 is traveling, as shown in Figure 1, air (traveling wind) taken in from the vehicle body side air intake 31A of the bumper garnish 30 is blown out rearward from the air exhaust port 31B into the engine compartment 21 (see arrow A1).

[0028] In this embodiment, the inlet hose 41 and the outlet hose 50 are connected to the front surface of the air cleaner 29, and the outlet hose 50 is inclined so as to approach the air intake 42A toward the rear of the vehicle, and has an inclined portion 51 that guides air to the air intake 42A. The air intake 42A is disposed opposite the inclined portion 51 in the vehicle width direction.

[0029] As a result, the inclined portion 51 of the outlet hose 50 of the air cleaner 29 can function as an air guide plate that guides the air. Therefore, by having the air flow along the inclined portion 51 of the outlet hose 50, the air can be guided to gather toward the air intake 42A, and the air flow direction can be changed toward the air intake 42A as shown by arrow A2 in FIG. 1, thereby improving the charging efficiency of the intake air. Furthermore, by having the air flow along the inclined portion 51 of the outlet hose 50, the intake air flowing through the outlet hose 50 can be cooled by the air, thereby improving the charging efficiency of the intake air. Therefore, in this embodiment, the inclined portion 51 of the outlet hose 50 can guide the air to the air intake 42A, and the intake air flowing through the outlet hose 50 can be cooled by the air, thereby improving the charging efficiency of the intake air.

[0030] In addition, in this embodiment, when viewed from above the vehicle, a space S is formed between the air intake 42A and the inclined portion 51, and an air exhaust port 31B of the bumper garnish 30 that covers the engine room 21 from the front is provided in front of the space S.

[0031] This allows the air taken into the engine compartment 21 from the air outlet 31B of the bumper garnish 30 to be directly and immediately supplied to the space S sandwiched between the air intake 42A and the inclined portion 51. This prevents warm air stagnating in the engine compartment 21 from being drawn into the air intake 42A, improving the efficiency with which the intake air of the engine 22 is filled.

[0032] In addition, in this embodiment, a cylindrical resonator section 52 is connected to the upstream end of the outlet hose 50, and the resonator section 52 is positioned immediately behind the rear of the inlet hose 41 and extends in the vehicle width direction.

[0033] As a result, air that flows rearward after colliding with the front surface of inlet hose 41 does not collide with the front surface of resonator portion 52, but flows rearward near the upper and lower surfaces of resonator portion 52. This prevents resonator portion 52 from blocking the flow of air toward the rear of the vehicle in engine compartment 21. This makes it easier for air to flow toward the rear of the vehicle in engine compartment 21, preventing warm air from accumulating around air intake 42A. As a result, warm air is prevented from being drawn into air intake 42A, and the efficiency with which engine 22 is filled with intake air can be improved.

[0034] While an embodiment of the present invention has been disclosed, it will be apparent to one skilled in the art that modifications may be made thereto without departing from the scope of the present invention, and it is intended that all such modifications and equivalents be included in the following claims. [Explanation of symbols]

[0035] 1...vehicle, 21...engine compartment, 22...engine, 29...air cleaner, 30...bumper garnish (body member), 31B...air exhaust port (opening), 41...inlet hose, 42A...air intake port, 50...outlet hose, 51...inclined portion, 52...resonator portion, S...space

Claims

1. An engine disposed in an engine compartment at the front of the vehicle; an inlet hose that is disposed in the engine compartment, has an air intake port at its upstream end that opens toward one side in the vehicle width direction, and has a downstream end that is connected to an air cleaner; an outlet hose disposed in the engine compartment, the outlet hose having an upstream end connected to the air cleaner and a downstream end connected to the engine, the inlet hose and the outlet hose are connected to a front surface of the air cleaner, the outlet hose has an inclined portion that is inclined toward the air intake port toward the rear of the vehicle and guides air to the air intake port, The vehicle intake device, wherein the air intake is disposed opposite the inclined portion in a vehicle width direction.

2. When viewed from above the vehicle, a space is formed between the air intake and the inclined portion, 2. The vehicle intake system according to claim 1, wherein an opening is provided in a vehicle body member that covers the engine compartment from the front, at a front portion of the space.

3. 3. The vehicle intake device according to claim 1, wherein a cylindrical resonator portion is connected to the upstream end of the outlet hose, the resonator portion being positioned immediately behind the rear of the inlet hose and extending in the vehicle width direction.

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