JPS61123713A - Engine cooling device for motorcycle - Google Patents

Abstract

PURPOSE:To make the other side of a heat exchanger movable centering on one side without removing a tube body as well as to facilitate operation for maintenance and inspection, by setting up the tube body, connecting both inlet and outlet parts of the heat exchanger to the engine side each, in a way of letting it come nearer to one side of the heat exchanger. CONSTITUTION:A radiator 31 is attached to the front of a down tube 12 via brackets 32 and 33 and a bolt 34, and its refrigerant inlet 41 is installed in an upper end at the left while a cooling liquid outlet 42 in a lower end at the right, respectively. And, a tube body 43 composed of an elastic material is attached to the refrigerant inlet 41 and connected to the engine side. Likewise, another tube body 44 composed of an elastic material is attached to the cooling liquid outlet 42, and an end part of the extension part 44a is connected to a projection pipe 12a of the down tube 12, while the cooling liquid outlet 42 is connected to the engine side via the tube body 44 and the down tube 12. With this constitution, if the bolt 34 is removed and coupling between the radiator 31 and the frame side is released, the radiator 31 is easily movable.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention applies to motorcycles (including saddle-riding tricycles and four-wheeled vehicles).
The present invention relates to an engine cooling system.

(Conventional Technique*) In motorcycles, heat exchangers such as radiators and oil coolers are generally placed in front of the engine. and the sixth
As shown in the front view in the figure, for example, the radiator (81) has an inlet (82) and an outlet (83) to increase cooling efficiency.
) are provided spaced apart on the left and right, respectively, and each entrance (82) and exit (
83) and the engine (84) side respectively.
811).

(Problem to be solved by the invention) Therefore, during engine maintenance, for example when removing the head cover, even if you try to move the radiator,
The radiator (81) is a tube body (85).

Since it is connected to the engine side by (8B), it cannot be moved.Therefore, conventionally, each time the pipe body (85)
, (8B) and drain the coolant, then remove the radiator (
81) has been removed, making it impossible to perform various maintenance tasks, requiring a lot of work time to drain the coolant, and causing the coolant to be wasted each time.

The present invention has been devised in view of the above-mentioned circumstances, and an object of the present invention is to easily replace the heat exchanger without draining the liquid filled in the heat exchanger such as a 5 radiator or an oil cooler. The goal is to provide engine cooling systems for motorcycles that can move the engine.

(Means for Solving the Problems) In order to achieve the above object, the present invention arranges the tubes connecting the inlet and outlet portions of the heat exchanger and the engine side, respectively, to one side of the heat exchanger. It is characterized by having been established.

(Function) By arranging the tube closer to one side of the heat exchanger in the vehicle width direction or the vertical direction, the other side of the heat exchanger can be moved around the above-mentioned example without removing the tube. can.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

Figure 1 is a perspective view of the motorcycle, Figure 2 is a front view of the same, and Figure 3 is a perspective view of the motorcycle.
The figure is a side view of the radiator portion. Figure 1w44 is a plan view of the same.

(1) is a motorcycle, (2) is a front wheel, (3) is a front fork, (0 is a handle, (5) is a body frame, (
8) is a rear wheel, and the vehicle body frame (5) includes a pair of left and right main tubes (11), a down tube (12), a down tube lower (13), a center tube (14), and the like. The main tube (11), the down tube (
12), the down tube lower (!3), and the center tube (50).The space defined by
20 indicates a sheet.

The radiator (31) is connected to the down tube (12), (12
) in the space in front of the bracket (32), (33) and bolt (34).

As shown in FIG. 2, the coolant inlet (41) of the radiator (31) is provided at the upper end portion on the left side, and the coolant outlet (42) is provided at the lower end portion on the right side. A tube body (43) made of an elastic material is attached to the coolant inlet (41) and connected to the engine (21) through, for example, a thermostat. A tube (40) made of an elastic material is attached to the coolant outlet (42).The tube (44) extends from the coolant outlet (42) along the bottom of the radiator (31) toward the coolant inlet (41). The protruding pipe (12) of the left down tube (12) is provided with an extending extension ii!11 (44a) and the inside thereof is formed into a coolant passage.
12a), and the coolant outlet (42) is connected to the engine (21) side 1, for example, a water pump, via the pipe body (40, down tube (12)). The middle part (51) is a band for tightening the tube body, and since this embodiment is configured as described above, when moving the radiator (31) during engine maintenance, remove the port (30) and tighten the radiator (31). and frame (5)
If we explain the connections between the sides, the radiator (31) can be moved forward with the right side centered on the left side, or the lower side can be moved forward with the upper side of the radiator (31) centered, as shown in Figure 5. .

Therefore, when performing various engine maintenance work, the radiator (31) can be easily moved without draining the coolant.
Simplifies engine maintenance work.

It is possible to shorten the working time and prevent wasteful discharge of the coolant.

In addition, in the embodiment, an extension part (44a) is provided on the pipe body (44) connected to the coolant outlet (42) to provide a degree of freedom, and when the coolant outlet (42) side of the radiator (31) is moved. As explained above, an extension part is provided on the pipe body (43) connected to the coolant inlet (4), and the radiator (31
) at the coolant inlet (41) (If) may be moved.

In addition, if the coolant inlet, outlet (41), and (42) are provided on the negative side of the radiator (31), the pipe body (43)
), (44), the length of the extending portion provided on at least one of them can be shortened.

(Effects of the Invention) As is clear from the above description, according to the present invention, heat exchangers such as radiators and oil coolers can be easily moved without draining the liquid filled in the heat exchangers, and various Engine maintenance work can be simplified, work time can be shortened, and wasteful discharge of coolant can be prevented.

[Brief explanation of drawings]

Figure 1 is a perspective view of the motorcycle, Figure 2 is a front view, and Figure 3 is a perspective view of the motorcycle.
The figure is a side view of the radiator part, Figure 4 is a plan view of the same, and Figure 5 is a side view of the radiator part.
The figure is a plan view when the radiator is moved, and FIG. 6 is a front view of a motorcycle showing a conventional radiator mounting structure.

Claims (1)

[Claims] A heat exchanger is installed in front of the engine, and the inlet of the heat exchanger is
An engine cooling device for a motorcycle comprising an outlet portion and an engine side connected to each other by a tube body, characterized in that the tube body is arranged close to one side of a heat exchanger. .