Utility vehicle

1. A utility vehicle comprising:

a vehicle body frame;

a dash panel provided in a front portion of the vehicle body frame and having a first duct port in a substantially center portion in a vehicle width direction;

a hood provided in the front portion of the vehicle body frame such that the hood is located in front of the dash panel, the hood covering a space defined by the dash panel;

a driving power source mounted to the substantially center portion of the vehicle body frame in the vehicle width direction such that the driving power source is positioned behind the dash panel;

a transmission joined to the driving power source; and

a first air-intake duct provided in the substantially center portion of the vehicle body frame in the vehicle width direction such that the first air-intake duct extends in a substantially forward and rearward direction and passes through the first duct port;

wherein an outlet provided at a downstream end portion of the first air-intake duct is coupled to the transmission; and

an inlet provided at an upstream end portion of the first air-intake duct is positioned in an upper portion of the space which is above the first duct port, in a rear portion of the space;

wherein the first air-intake duct includes:

a main duct element extending in the substantially forward and rearward direction such that the main duct element passes through the first duct port; and

an introduction duct element provided in the rear portion of the space covered with the hood such that the introduction duct element extends substantially upward from an upstream end portion of the main duct element;

the inlet is provided at an upstream end portion of the introduction duct element;

an upper end portion of the introduction duct element includes a first duct portion extending substantially vertically, a second duct portion extending substantially vertically, and a coupling duct portion of a substantially-inverted-U-shape for providing communication between an upper end portion of the first duct portion and an upper end portion of the second duct portion, the first duct portion, the second duct portion and the coupling duct portion forming a substantially-inverted-U-shape;

the second duct portion is deviated in a rearward direction from the first duct portion when viewed from above; and

the inlet is provided at a lower end portion of the second duct portion.

2. The utility vehicle according to claim 1 ,

wherein the inlet opens downward so as to face an upper surface of a portion of the dash panel.

3. The utility vehicle according to claim 1 ,

wherein

the inlet is deviated in a rearward direction from the first duct portion when viewed from above and is positioned above a lower end portion of the first duct portion.

4. The utility vehicle according to claim 1 ,

wherein

the inlet opens downward;

the dash panel has a second duct port through which the introduction duct element passes vertically; and

at least a portion of the inlet is deviated in the vehicle width direction from the second duct port when viewed from above and opens so as to face an upper surface of a portion of the dash panel.

5. The utility vehicle according to claim 1 , comprising:

a drain trap having a substantially bottomed tube shape;

wherein the drain trap has an opening at an upper end portion thereof; and

the upper end portion of the drain trap is removably coupled to a lower end portion of the introduction duct element.

6. The utility vehicle according to claim 1 ,

wherein the upstream end portion of the main duct element and a downstream end portion of the introduction duct element are removably coupled together via a flexible connecting portion.

7. The utility vehicle according to claim 1 ,

wherein the upstream end portion of the main duct element and a downstream end portion of the introduction duct element are removably coupled together via a rubber-made connecting portion.

8. The utility vehicle according to claim 1 ,

wherein a suspension mechanism is mounted to a bent portion of the upper end portion of the introduction duct element, the bent portion having a substantially-inverted-U-shape.

9. The utility vehicle according to claim 1 , comprising:

a second air-intake duct provided in the substantially center portion of the vehicle body frame in the vehicle width direction such that the second air-intake duct extends in the substantially forward and rearward direction and passes through the first duct port;

wherein the driving power source is an engine;

an outlet provided at a downstream end portion of the second air-intake duct is coupled to the engine; and

an inlet provided at an upstream end portion of the second air-intake duct is positioned in the space covered with the hood.

10. A utility vehicle comprising:

a vehicle body frame;

a dash panel provided in a front portion of the vehicle body frame and having a first duct port in a substantially center portion in a vehicle width direction;

a hood provided in the front portion of the vehicle body frame such that the hood is located in front of the dash panel, the hood covering a space defined by the dash panel;

a driving power source mounted to the substantially center portion of the vehicle body frame in the vehicle width direction such that the driving power source is positioned behind the dash panel;

a transmission joined to the driving power source; and

a first air-intake duct provided in the substantially center portion of the vehicle body frame in the vehicle width direction such that the first air-intake duct extends in a substantially forward and rearward direction and passes through the first duct port;

wherein an outlet provided at a downstream end portion of the first air-intake duct is coupled to the transmission;

an inlet provided at an upstream end portion of the first air-intake duct is positioned in an upper portion of the space which is above the first duct port, in a rear portion of the space;

wherein the first air-intake duct includes:

a main duct element extending in the substantially forward and rearward direction such that the main duct element passes through the first duct port; and

an introduction duct element provided in the rear portion of the space covered with the hood such that the introduction duct element extends substantially upward from an upstream end portion of the main duct element;

wherein the inlet is provided at an upstream end portion of the introduction duct element;

wherein the introduction duct element includes:

a base duct portion extending substantially upward from the upstream end portion of the main duct element;

a first duct portion extending substantially vertically in a position above the base duct portion;

a second duct portion extending substantially vertically in a position behind the first duct portion;

a first coupling duct portion of a substantially-L-shape for providing communication between an upper end portion of the base duct portion and a lower end portion of the first duct portion;

a second coupling duct portion of a substantially-inverted-U-shape for providing communication between an upper end portion of the first duct portion and an upper end portion of the second duct portion;

the first duct portion is deviated in the vehicle width direction from the base duct portion when viewed from above; and

the inlet is provided at a lower end portion of the second duct portion.