JPH0550968A - Radiating device for motor scooter - Google Patents

Abstract

PURPOSE:To provide a radiating device for a motor scooter equipped with a water cooled engine which has each radiator installed at the right and left sides of a rear structure frame where each pipeline can be made short in length and a pump can also be made small in size while the efficiency of the device can be enhanced. CONSTITUTION:Air duct holes 6 are opened at the right and left front sections of a frame cover 5 covering the rear section of a body, a radiator 7 and a blower fan 8 are mounted onto the right and left outsides of a rear section frame 2 at the rear side of each duct hole 6, and exhaust air holes are opened at the right and left rear sections of the frame cover 5, so that the cooling water of an engine 3 is made to circulate within the radiator 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scooter radiator device.

[0002]

2. Description of the Related Art A motorcycle is equipped with a water-cooled engine, and a radiator is attached to the front end of the frame toward the front.
The radiator cooling water is circulated to cool the radiator. In the case of a motorcycle, the engine is mounted in the lower front part of the frame, so the position of the radiator at the front end of the frame is close, and piping etc. can be shortened.

The engine of the scooter is attached to the front side of the rear wheel under the vehicle body. Therefore, it is difficult for the wind to be received during traveling, and in most cases, a forced air cooling engine is used.

[0004]

When the engine mounted on the scooter or the like is a water-cooled engine rather than an air-cooled engine, the cooling effect is more stable and a high-power engine can be obtained.
If you install a water-cooled engine on the scooter and try to pipe it to the radiator attached to the front end of the frame, the engine position is on the rear side, so the piping becomes long and complicated, and the pump that circulates the cooling water is also large and with high pressure. Therefore, there is an inconvenience that the engine output is used for driving the pump.

In view of such a point, the present invention has a water-cooled engine mounted on a scooter, radiators are attached to the left and right sides of the rear frame, the piping can be shortened, and the pump can be efficiently used with a small-sized scooter. Aim to get.

[0006]

In order to achieve the above object, a radiator device for a scooter according to the present invention has an air guide opening at the left and right front portions of a frame cover that covers a rear portion of a vehicle body, and a rear side of the air guide opening. The radiator and the blower fan are attached to the outside of the left and right rear frames, and the exhaust ports are opened in the left and right rear parts of the frame cover to circulate the engine cooling water in the radiator.

[0007]

Since the left and right radiators are mounted on the upper side of the engine, the piping connecting the engine and the radiator can be shortened. Further, since the piping is short and the flow path resistance is small, the cooling water pump may be small. Then, the radiator can blow cooling air with a fan to make it cool.
Since it is attached to the rear part of the vehicle body, it is not necessary to increase the rigidity of the front part of the frame, and the frame can be made lightweight.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. The center part of the frame is a steel plate center frame 1, and on the rear side of the center frame 1,
The left and right rear frames 2 made of pipe are extended to the rear side and welded. The engine 3 is attached to the front side of the rear wheel 4 and below the center frame 1. A frame cover 5 is attached and covered on the rear side from the center frame 1.

The frame cover 5 is provided with air guide ports 6 on the left and right sides of the front portion. Then, a radiator 7 and a blower fan 8 are attached to both outer sides of the left and right rear frames 2 behind the left and right air guide ports 6, and air outlets 9 are opened in the left and right rear parts of the frame cover 5. The left and right radiators 7 are connected to the engine 3 by hoses to circulate cooling water.

The left and right radiators 7 are on the upper side of the engine 3, and the piping can be shortened and the flow path resistance can be reduced, so that the cooling water pump can be made small and the output loss can be reduced. Further, since the left and right radiators 7 can be arranged close to the center of gravity of the frame, it is possible to reduce the weight without increasing the rigidity of the front portion of the frame. Further, the radiator 7 can improve the passage of cooling air by the air guide port 6, the exhaust port 9, and the blower fan 8 provided at the front and rear of the frame cover 5, and the cooling efficiency is good even when the radiator 7 is at the rear part of the vehicle body. It can be something.

[0011]

As described above, since the present invention is configured as described above, the radiator can be arranged near the engine, the piping can be shortened, and the cooling water pump can be made small. Further, it is not necessary to increase the rigidity of the front portion of the frame, and the frame can be made light.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view of a radiator portion, which is an embodiment of the present invention.

[Explanation of symbols]

 2 Rear frame 3 Engine 5 Frame cover 6 Air inlet 7 Radiator 8 Blower fan 9 Air outlet

Claims (1)

[Claims] 1. A wind guide opening is formed in the left and right front portions of a frame cover that covers the rear portion of the vehicle body, and a radiator and a blower fan are attached to the outside of the left and right rear frames behind the wind guide, and the left and right rear portions of the frame cover are attached. A radiator device for a scooter characterized by having an exhaust outlet opened to circulate engine cooling water through the radiator.