JPS58211519A - Radiater device for motor cycle - Google Patents

Abstract

PURPOSE:To perform a stable circulation of cooling water in case of feeding of decreased cooling water by a method wherein a volume of cooling water for radiater at the inlet part of a pump is set larger than that of a radiater at the outlet part of a pump in the device composed of two radiaters which can be communicated to each other through pipings. CONSTITUTION:The first and second radiaters 32 and 34 are composed of upper tanks 36, 42, cores 38, 44 and lower tanks 40, 46. Both upper tanks 36, 42 are connected and communicated through a piping 48, both lower tanks 40, 46 are connected and communicated through a piping 50. To the piping 50 is arranged a pump 52 and then an engine 54 is arranged at the intake part of the pump 52. A volume of cooling water of said first radiater 32 is made larger than a volume of cooling water of second radiater 34. In this way, even if the cooling water is decreased due to its evaporation, it is possible to keep always a volume of cooling water exceeding the volume indicated by dots, so that the cooling water is smoothly circulated and a stable cooling of the engine 54 can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radiator device for a motorcycle, and in particular, the radiator is divided into a first radiator and a second radiator. Regarding a radiator device hood of a motorcycle in which a second radiator is connected with the arrangement u to form a cooling water circulation path J
Is it common for motorcycles to ride in mud? i. When running at low speeds, the temperature of the cooling water in the radiator rises and the internal pressure of the radiator increases, so water vapor is collected from the relief pulp of the radiator cap into the catch tank and set to 5.1, but for racing such as motocross. Motorcycles run continuously, so even if a catch tank is installed like a regular street car and pressure is applied to recover water vapor from the relief pulp, the engine temperature does not drop due to continuous running, so the water vapor is It cannot be recovered as cooling water. Therefore, in racing motorcycles such as motocross, the cooling water decreases during the race, and if you ride in such conditions, the cooling water level will drop excessively and the circulation path will be damaged. Aeration occurs inside the bong and the cooling water flows smoothly #iL
Unusual defects may occur.

In particular, in motorcycles, due to space constraints, the radiator is divided into a first radiator 10 and a second radiator 12, as shown in FIG. 14, and further the first,
A radiator device has been proposed in which the lower tank of the second radiator 10.12 is communicated with VT16, forming a cooling water circulation path, and the area around the engine 20 is cooled by a pump 18 disposed in the middle of the pipe 16. There is. As shown in FIG. 1, the temperature of the conventional radiator device I, K as shown in FIG. is not circulated, therefore, racing motorcycles such as motocrossers equipped with such split radiators,
[In this case, there is a risk that the cooling water will not be circulated unnecessarily.

Conventionally, a radiator device shown in FIG. 2 has been proposed in order to solve the problem of the radiator skin shown in FIG. That is, in the radiator device shown in FIG. 2, the eleventh second radiator 1
0.12 lower tank '#22.24! 26, and this merged pipe 26 is again connected to the pipe 28.3.
0, and this branched 'e28.30 is the 'th'
The second radiator 10. is connected to the upper tank of the second radiator 10.degree. In the radiator installation configured in this way, the cooling water discharged from the pump 18 cools the area around the engine 20, and also the first and second radiators 1(), After being supplied to the upper tank 12 and cooled by the radiator 10, it is supplied to the pump 18 from the Vl pipe 26.
In the radiator device shown in Fig. 42, as shown by the dots in Fig. 1, the cooling water reaches the trough line beyond the customer base of the second radiator 129111 of the pump 18 discharge 1i111, and as shown by the dots in Fig. 2. Upstream III of tube 26 as shown (
If there is cooling water exceeding the capacity of the discharge side of the pump 18 and the capacity of the pump 28.30, the cooling water will be able to circulate. However, in the motorcycle radiator installation shown in FIG. The structure of the pipes constituting the path becomes complicated, the number of parts such as cross joints increases, and the flow rate of cooling water supplied to the left and right radiators 10, 32 becomes uneven.

The present invention has been made in view of the above-mentioned problems.In the radiator device of a motorized wheeled vehicle equipped with a radiator having a split structure, cooling water decreases due to evaporation, etc., and C is insufficient. It is an object of the present invention to propose a radiator device that can ensure a sufficient amount of cooling water and smoothly circulate the cooling water. In a radiator device, the cooling water volume *W on the pump suction side of the cooling water circulation path is thicker than the cooling water volume on the second radiator side on the pump discharge side. Even if the amount decreases, the amount of cooling water required for circulation is secured, and the cooling water can be circulated smoothly.

The following is a detailed explanation of a preferred embodiment of the radiator device for a motorcycle according to the present invention according to the boxed drawings. Figure 3C shows the structure of the first embodiment of the radiator 4 for a motorcycle according to Yumei Hon. In the 5K11 embodiment shown in Figure 3, the radiator is divided into a first radiator 32 and a second radiator 34, and the first radiator 32 is viewed from above! i
ll K upper tank 36, core 38, lower tank 40
It is composed of. Similarly, the silk 2 radiator 34 is also composed of an upper tank 42, a core 44, and a lower tank 46.
The second seven tank tank 36 communicates with the upper tank 42 of the second radiator 34 via a pipe 48, and further communicates with the upper tank 42 of the second radiator 34.
2 lower tank 40 and the lower tank 4 of the second radiator 34
In fact, a pump 52 is disposed in the 50 which is connected to the 6 through the 50, and the suction of this pump 52 is
A main engine 54 is disposed at 11. As shown in FIG. 3, the cooling water container cover of the first radiator 32 is made thicker (MhV) than the cooling water ψ of the 42nd radiator 34.

And the second radiator 3 has a cooling water capacity of the first radiator 32.
In order to make the cooling water larger than each state in 4, there are the following examples (■, ■, 0), and each side may be used alone (・or may be used in combination with either one).

(2) Make the cooling water capacity of the upper tank 36 of the -31 radiator 32 larger than the capacity of the one-flange tank 42 of the second radiator 34.

■ Volume of the lower tank 4o of the first radiator 32 is #! 2
G) Making the volume of the core 38 of the twelfth radiator 32 larger than the volume of the core 44 of the second radiator 34 1, in this case K1
11. The following three cases can be considered; the first case is that the core 44 of the second radiator 34 has a monolayer IVC structure, the second case that the core 38 of the second radiator 38 is formed of multiple layers; The width of the core 380J is made wider than the width of the core 440, and in a third case, the width of the core 380J is made longer than the length of the core 44.

In the first embodiment of the present invention configured as described above, the discharge L111+11 of the pump 52 as shown in FIG.
Since the cooling water capacity of the first radiator 3291j on the suction side of the pump 52 is larger than the cooling water capacity y of the second radiator 34, the cooling water decreases due to evaporation etc. However, the capacity exceeds the capacity shown by the dots in Fig. 3. The amount of cooling water is ensured, the cooling water circulates smoothly, and the area around the engine 540 can be cooled. Furthermore, in the embodiment shown in FIG.
Since the engine 54 is arranged on the suction side of the first radiator 32 fA, the capacity of the stomach around the engine 54 is the same as the capacity of the first radiator 32 fA.
This has the advantage of increasing the cooling water capacity.

FIG. 4 shows a 4R structure of a second embodiment of a radiator device for a motorcycle according to the present invention. In the second embodiment shown in FIG. 4, the same or similar members as those in the first embodiment shown in FIG. Omitted.

$4 i'? In the second example shown in I, 12
A sieve tank 56 is disposed in a pipe 50 connecting the lower tank 40 of the radiator 32 and the lower tank 46 of the second radiator 34. In the second embodiment shown in FIG. A reserve tank 56 is provided in the pipe 50 to
Therefore, it was installed to measure the suction of pump 52! The cooling water capacity on the @1 radiator 32 side increases, and the cooling water that exceeds the cooling water capacity shown by the dots in the fourth factor is always secured.
In the #t2 embodiment, the cooling water is reduced by evaporation or the like in the same way as in the first practical example, and the cooling water required for circulation can be saved for one minute.

FIG. 5 shows the structure of a third embodiment of a radiator attachment for a motorcycle according to the present invention. In the third embodiment shown in Fig. m5, the same or similar members as those in the first embodiment shown in Fig. do.

In the conduit 3 embodiment shown in FIG. 5 (or, the inside 60 of the down tube 58, which is a part of the vehicle body frame, is arranged in the middle of the pipe 50 connecting the lower tank 40 and the lower tank 46,
The space 60 in the down tube 58 is made to function as a lower tank (i.e., the pipe 62 pulled out from the lower tank 40 of the first radiator 32 is opened at one end in the space 60 of the down tube 58. However, the other end of the space 60 of the town tube 58 is communicated with the inside of the tube 50.

With such a configuration, -ti of the down tube 58
il is V as in the resin tank 56 of the second embodiment.
C, @ function, the cooling water capacity of the first radiator 3z and the second radiator 34 is formed to be the same, and the cooling water capacity h1 on the side of the 412 radiator 32 is increased by this space 60, and the cooling water is cooled as the vehicle runs. Even if the amount of water decreases, it is possible to secure cooling water that exceeds the amount of cooling water uJ6L shown by the dots in FIG.

As explained above, the radiator device for a motorcycle according to the present invention: In a radiator device for a motorcycle having a divided first and second silk radiator, the first radiator side on the pump suction side The cooling water capacity of the pump is made larger than the cooling water capacity of the second radiator on the pump discharge side, so even if the cooling water decreases due to evaporation while the vehicle is running, the minimum cooling water capacity necessary for circulation is always ensured. I can do it.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the structure of a conventional radiator device for a motorcycle, FIG. 2 is an explanatory diagram showing the structure of another conventional radiator device for a motorcycle, and FIG. 3 is an explanatory diagram showing the structure of a radiator device for a motorcycle according to the present invention. An explanatory diagram showing the structure of a first embodiment of the radiator device,
FIG. 4 is an explanatory diagram showing the structure of the second embodiment according to the present invention,
FIG. 5 is an explanatory diagram showing the structure of a third embodiment of the present invention. 32...first radiator, 34...42 radiator, 4
850...i' connecting the first radiator and the 42nd radiator
(, 52... Bonda, 54... Engine 1, Agent
Patent Attorney Matsuura Tsuyoshi Goto 8 Figure 3 Figure 4 Turtle Figure 5 Exit → Dt

Claims (1)

[Claims] (1) Consists of a first radiator and a second radiator,
These two radiators are connected by piping to form a cooling water circulation path, and a pump is provided in the middle of the cooling water circulation path, and the suction side of the bong is connected to the first radiator, and the pump discharge side is connected to the second radiator. 1. A two-wheeled motor vehicle, characterized in that the cooling water capacity of the first radiator side on the pump suction side is larger than the cooling water capacity of the second radiator side on the bong discharge side. equipment.