JPS61229682A - Engine cooling structure of saddling type car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for cooling an engine using running wind in a saddle-type vehicle in which the driver rides astride a saddle-type seat, similar to a motorcycle. It is something.

Recently, straddle-type buggies have become popular for both leisure and practical use. Like motorcycles, this vehicle has a body frame made of pipe material, a rod-shaped handlebar, and a saddle-shaped seat. It also uses low-pressure tires, and is capable of driving on rough terrain and when turning It is possible to enjoy maneuvering by moving the body's center of gravity when overcoming objects.

Such buggies are intended to travel in various types of terrain, including wetlands and desert areas, and are often equipped with a body cover to deal with muddy water and sand thrown up by the wheels.

In this case, the car body cover will block part of the running air from the engine, which is installed in the center of the car body in the front-rear direction, and will prevent the car from passing between the left and right front wheels. Although the wind is directed toward the engine, members such as the front body frame and steering device act as resistance to the wind while the vehicle is running, which impedes the cooling efficiency of the engine. Therefore, it is necessary to install a special air collection assisting member in front of the engine. In addition, as another means for collecting air from the engine, there is a vehicle body cover that covers the upper part of the space between the left and right front wheels and has an air intake at the upper front part of the body (for example, Japanese Patent Laid-Open No. 58-136576 ), even in such a structure, the inside of the air intake (rear of the vehicle body)
The body frame and steering system present in the vehicle provide resistance to the running wind, allowing sufficient running wind to flow to the engine.

An object of the present invention is to provide a saddle-ride type vehicle whose front part is covered with a body cover and which has a pair of left and right front wheels. The aim is to ensure a sufficient amount of ventilation and improve engine cooling efficiency.

The purpose of this is to install a front body cover that covers the steerable left and right front Φ wheels, the left and right front wheels, and the space between them, and a In a saddle type vehicle equipped with an engine, etc., the front body cover has at least an intake opening located at a position that covers at least the left and right front wheels and is open toward the front of the vehicle body. This is achieved by providing an air guide path in the front heavy body cover that guides the air flow captured by the air outlet to the engine.

According to such a configuration, while driving, the front body cover that covers the upper left and right front wheels, and the front wheel cover (Front 1
The wind flowing at high speed along the upper surface of the vehicle enters the air guide path from the air intake, is guided along the air guide path, and is turned into an engine.

An embodiment of the present invention shown in FIGS. 1 and 2 will now be described.

FIG. 1 shows a straddle-type four-wheel buggy vehicle 10 as a hemostatic diagram on the left side of the vehicle body, and the saddle-ride type four-wheel buggy vehicle 10 is equipped with a pair of low-pressure wide tires called balloon tires. Front axle 12. It is equipped with a rear wheel 14 and a rod-shaped handle 1G similar to a motorcycle.

In addition, an engine E is provided at the center of the vehicle body frame 18 in the longitudinal direction.
A fuel tank T and a saddle-shaped seat S are arranged above the engine E.

The body cover that covers the entire body of the straddle-type four-wheel buggy vehicle 10 from above includes left and right front wheel covers (front and
A front vehicle body cover 20 integrally formed with a fender) 22 and a front cover 24 connecting the fenders and the like to the phase η;
The front body cover 20 is formed of left and right rear wheel covers (rear fenders) 34 and a rear body cover 32 formed integrally with the front wheel covers 22. An air guide tube 26 is integrally formed on the front wheel cover 22 adjacent to both side walls of the front cover 24 which are more raised than the front cover 24, and an air intake port 28 of the air guide tube 26 is opened toward the front of the vehicle body. ing.

The side wall 25 of the front cover 24 is also used as one side wall of the wind guide pipe 26, and the exhausted part of the side wall 25 is made into the υ1 exit, and a guide plate 30 is installed at that part to guide the running wind to the engine E.
is attached. Incidentally, if the bottom plate of the fuel tank T and other attached parts have a running ffl guiding function for the engine E, the attraction plate 30 can be omitted.

This embodiment is configured as described above, and when driving,
As shown by arrow A, the running air enters the wind guide tube 26 at high speed along the upper surface of the front wheel cover 22, flows inside the wind guide tube 26 (air guide path), and is further guided by the guide plate 30. Engine E
erupts towards. Further, the traveling wind that is almost large below the front cover 24 also flows toward the engine E, as in the conventional case.

In this way, the air intake port 28 is opened toward the front of the vehicle body at the top of the front wheel cover 22, which easily receives high-velocity running wind.
Since the air guide tube 26 is provided, the t of the front cover 24 is
Sufficient running wind, including the running wind that enters the engine, is provided to the engine E, and the engine E is cooled extremely efficiently.

Next, the modified examples shown in FIGS. 3, 4, 5, and 6 will be explained. These modified examples all relate to a saddle type four-wheel buggy vehicle similar to the saddle type four-wheel buggy vehicle 10. In the drawings, the same members as those in the previous embodiment are given the same reference numerals.

In the illustrated example in FIGS. 3 and 4, the outer wall of the fuel tank T is extended forward and the air guide plate 4 is located above the front wheel cover 22.
0, the running wind A flowing along the upper surfaces of the front wheel cover 22A and the front cover 24A is captured by the air intake port 42 defined by the front end of the air guide plate 40,
A structure is adopted in which the bottom plate of the tank T guides the running wind to the engine E, and in this example as well, it is possible to effectively guide the high-speed running wind flowing above the front wheel cover 22A to the engine E. It is.

In the illustrated example in FIGS. 5 and 6, the front cover 24B connected to the front wheel cover 22B is the space between the left and right front wheels 12.
An upper cover 21 that exists only in the - position and covers the rear end of the front cover 24B from above at intervals is a front wheel cover 22.
It is formed in series with B. This forward-leaning upper cover 21 covers the upper surface of the front wheel cover 22B on the vehicle center side and also covers the fuel tank T, extending toward the rear of the vehicle body. Therefore, the front cover 24B, the front wheel cover 22
A U-shaped intake port 5 defined by B and the upper cover 21
High-speed running Ji entering the inside of the upper cover 21 from 0
After passing the rear end of the front cover 24B, the A flows toward the engine E due to the induction 9 action by the bottom plate of the fuel tank T.

In this example, since the upper cover 21 has a curved shape that is largely tilted forward, the flow velocity of the traveling wind flowing along both side walls of the upper cover 21, that is, the traveling wind flowing over the upper surface of the front wheel cover 22B is increased. The running wind flowing along the widthwise central portion of the seventh cover 21 can also be used as cooling air for the engine E, and the cooling efficiency of the engine E is extremely good.

1 As is clear from the above description, the front intermediate cover is located above the portion that covers at least the left and right front wheels and is open toward the front of the vehicle body. proposed an engine cooling structure for a straddle-type vehicle, which is characterized in that the front body cover is provided with an air guide path that guides the traveling air captured by the air intake to the engine.

In this engine cooling structure, the air guide opening is provided above the front wheel cover (the part of the curved body cover that covers the front wheels) through which running air flows at high speed, so that sufficient running air is delivered to the engine. Even though there is a front body cover in front of the engine, the engine can be cooled efficiently.

[Brief explanation of the drawing]

FIG. 1 is a front view of the left side of a heavy body of a straddle-type vehicle employing an engine cooling structure according to an embodiment of the present invention, FIG. 2 is a front plan view of the front part thereof, and FIG. 4 is a plan view thereof, FIG. 5 is a left front view of the front part of the middle rest according to the second embodiment, and FIG. 6 is a plan view thereof. 10...Saddle type four-wheel buggy, 12...Front wheel, 1
4... Rear wheel, 1G... Rod-shaped handle, 18...
Body frame, 20...'@body cover, 21...
・Upper cover, 22.22A, 22B...Front wheel cover, 24.24A, 24B...Front cover 25...
・Side wall, 2G...Air guide tube, 28...Air intake, 30・
... Guide plate, 32 ... Rear body cover, 34 ... Rear wheel cover, 40 ... Wind guide plate, 42 ... Air intake, 5
0...Nariyokuchi.

Claims (1)

[Scope of Claims] A front vehicle body cover that covers steerable left and right front wheels, the left and right front wheels, and the space between them; In a straddle-type vehicle equipped with an engine located at the center of the vehicle body in the longitudinal direction and a seat located above the engine, the vehicle body is located above a portion of the front body cover that covers at least the left and right front wheels. Engine cooling for a straddle-type vehicle, characterized in that the front body cover has an air intake opening that is open toward the front, and an air guide path that guides the running air captured by the air intake to the engine. structure.