Intake structure for seat type vehicle

Abstract

To provide an intake structure for a seat type vehicle which makes it possible to shorten the air intake path and to prevent the taken-in air from being heated with the heat of an engine. An intake structure for a seat type vehicle is provided in which an engine and a fuel tank are mounted side by side in the lateral direction of the vehicle under the occupant seats attached onto a frame. An air cleaner is arranged to the rear of the engine with an intake port for the air cleaner being provided under the occupant seats and above the fuel tank.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:

FIG. 1 is a side view of a vehicle equipped with an intake structure for a seat type vehicle according to an embodiment of the present invention;

FIG. 2 is a front view of the vehicle shown in FIG. 1

FIG. 3 is a rear view of the vehicle shown in FIG. 1;

FIG. 4 is a perspective view, as seen diagonally from the right rear, of the vehicle shown in FIG. 1;

FIG. 5 is a side view showing the body frame structure of the vehicle shown in FIG. 1;

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is an enlarged side view showing a fuel tank and the like arranged below an occupant seat;

FIG. 8 is a top view of FIG. 7; and

FIG. 9 is an enlarged side view showing a state with the fuel tank shown in FIG. 7 removed.

Claims

1. An intake structure for a seat type vehicle having an engine and a fuel tank mounted side by side in a lateral direction of the vehicle under an occupant seat and attached onto a frame comprising: an air cleaner arranged in a rearward direction of the engine; andan intake port for the air cleaner being provided under the occupant seat and above the fuel tank.

2. The intake structure for a seat type vehicle according to claim 1, wherein an intake pipe connecting between the air cleaner and the intake port is arranged above the fuel tank so as to avoid interference with the engine.

3. The intake structure for a seat type vehicle according to claim 1, wherein a partition wall is provided between the engine and the fuel tank.

4. The intake structure for a seat type vehicle according to claim 2, wherein a partition wall is provided between the engine and the fuel tank.

5. The intake structure for a seat type vehicle according to claim 1, wherein the intake port for the air cleaner is directed upwardly between the occupant seat and an upper surface of the fuel tank.

6. The intake structure for a seat type vehicle according to claim 1, an further including a duct operatively connected between an air outlet port for said air cleaner and a throttle body for the engine.

7. The intake structure for a seat type vehicle according to claim 3, and further including a back cover operatively positioned rearwardly relative to said fuel tank.

8. The intake structure for a seat type vehicle according to claim 4, and further including a back cover operatively positioned rearwardly relative to said fuel tank.

9. The intake structure for a seat type vehicle according to claim 5, wherein positioning the intake port to open upwardly between the occupant seat and an upper surface of the fuel tank prevents air entering into the intake port from being heated by the engine.

10. The intake structure for a seat type vehicle according to claim 3, wherein the partition wall prevents air entering into the intake port from being heated by convection of heat flowing from the engine.

11. An intake structure adapted to be used with a seat type vehicle having an engine and a fuel tank mounted side by side in a lateral direction of the vehicle comprising: an air cleaner for cleaning air supplied to the engine, said air cleaner being arranged in a rearward direction of the engine; andan intake port for supplying air to the air cleaner, said intake port being provided under the occupant seat and above the fuel tank.

12. The intake structure adapted to be used with a seat type vehicle according to claim 11, wherein an intake pipe connecting between the air cleaner and the intake port is arranged above the fuel tank so as to avoid interference with the engine.

13. The intake structure adapted to be used with a seat type vehicle according to claim 11, wherein a partition wall is provided between the engine and the fuel tank.

14. The intake structure adapted to be used with a seat type vehicle according to claim 12, wherein a partition wall is provided between the engine and the fuel tank.

15. The intake structure adapted to be used with a seat type vehicle according to claim 11, wherein the intake port for the air cleaner is directed upwardly between the occupant seat and an upper surface of the fuel tank.

16. The intake structure adapted to be used with a seat type vehicle according to claim 11, an further including a duct operatively connected between an air outlet port for said air cleaner and a throttle body for the engine.

17. The intake structure adapted to be used with a seat type vehicle according to claim 13, and further including a back cover operatively positioned rearwardly relative to said fuel tank.

18. The intake structure adapted to be used with a seat type vehicle according to claim 14, and further including a back cover operatively positioned rearwardly relative to said fuel tank.

19. The intake structure adapted to be used with a seat type vehicle according to claim 15, wherein positioning the intake port to open upwardly between the occupant seat and an upper surface of the fuel tank prevents air entering into the intake port from being heated by the engine.

20. The intake structure adapted to be used with a seat type vehicle according to claim 13, wherein the partition wall prevents air entering into the intake port from being heated by convection of heat flowing from the engine.