JPS635316B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radiator device for water cooling an engine in a motorcycle or other two-wheeled vehicle. Conventionally, in this type of two-wheeled vehicle, there is a type in which a water-cooled engine having a radiator is installed in the middle part of the vehicle body having front and rear wheels, and the engine is also equipped with a supercharger. It is preferable that both the heat exchange efficiency and the cooling performance of the supercharger are improved.

The purpose of the present invention is to obtain a device that meets such requirements, and includes a water-cooled engine with a radiator installed in the middle of a vehicle body having front and rear wheels, and a supercharger attached to the engine. In this type, the radiator and the supercharger are vertically offset from each other and are arranged between the front fork at the front of the vehicle body and the engine behind it.

An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawings, reference numeral 1 denotes a vehicle body, and the vehicle body 1 includes a front wheel 2, a rear wheel (not shown), and an engine 3 located in the middle thereof, and the vehicle body 1 is configured as a two-wheeled motor vehicle as a whole. The vehicle body 1 includes a front fork 4 at the front, a main frame 5 extending rearward from the upper part of the fork 4, and an engine 3.
The engine is of a water-cooled type having a radiator 6, and is equipped with a supercharger 7 consisting of an exhaust turbine and a compressor interlocked with the exhaust turbine. 8 in drawings
9 is an exhaust pipe on the exhaust side of the engine 3; 10 is an exhaust pipe on the exhaust side of the engine 3;
11 indicates a water pipe extending from the radiator 6, 11 indicates a fuel tank above the engine 3, and 12 indicates a seat for a passenger behind the engine 3. According to the present invention, the radiator 6 and the supercharger 7 are arranged between the front fork 4 and the engine 3 so as to be vertically offset from each other, and the radiator 6 is arranged between the front fork 4 and the engine 3. I made it into a shape that is wide in the horizontal direction and extends outward on both sides. In the illustrated example, the radiator 6 is deviated upward with respect to the supercharger 7 and is provided below the main frame 5, and further includes portions 6 extending to both outsides of the radiator 6 as necessary.
A, 6a is provided with a fan 13 for forced air cooling on its back side, as shown in FIGS. 3 and 4, for example.

To explain its operation, the wind generated as the vehicle travels acts on the radiator 6 and the supercharger 7, which are offset vertically from each other, thereby reducing the heat exchange efficiency of the radiator 6 and the supercharger 7. In addition, the radiator 6 has portions 6a, 6a extending outward on both sides, and the front wheels 2 and front fork 4 act to reduce the running wind acting on the portions 6a, 6a. Thus, the radiator 6 has an improved heat exchange efficiency, especially in the sections 6a, 6a, and it is possible to make it relatively compact as a whole. Furthermore, the fan 1 is attached to the portion 6a.
3, the efficiency can be further improved, and in this case, if the discharge side of the fan 13 is directed to the supercharger 7, the supercharger 7 is also air-cooled by this, which is advantageous. It is.

According to the present invention, the radiator and supercharger are vertically offset from each other and are installed between the front fork at the front and the engine at the rear.
Both the radiator and the supercharger have effects such as being able to improve heat exchange efficiency and cooling performance by being influenced by the running wind.

[Brief explanation of the drawing]

Fig. 1 is a side view of an example of the device of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a side view of a modified example of the device with a part of the main part cut away, and Fig. 4 is a front view thereof. be. 1... Vehicle body, 2... Wheels, 3... Engine, 4
...Front fork, 6...Radiator, 7...
...Supercharger, 6a, 6a...Both outer parts.

Claims (1)

[Claims] 1. A water-cooled engine with a radiator is provided in the middle of a vehicle body having front and rear wheels, and
In an engine equipped with a supercharger,
A radiator device for a two-wheeled motor vehicle, wherein the radiator and the supercharger are vertically offset from each other and are disposed between a front fork at the front of the vehicle body and the engine at the rear thereof. 2. A radiator device for a two-wheeled motor vehicle as set forth in claim 1, wherein the radiator is arranged above the supercharger and below the main frame of the vehicle body. 3. A radiator device for a two-wheeled motor vehicle as set forth in claim 1, comprising a fan for forced air cooling in a laterally extending portion of the radiator.