JPS61215121A - Radiator for motorcycle - Google Patents

Abstract

PURPOSE:To eliminate any drop in a flow velocity of running air at the time of passing through a radiator as well as to aim at a rise of heat exchanger effectiveness, by setting up a cooling fin of the radiator so as to cause a lot of ventilating holes to be formed by this cooling fin to become parallel with the running air. CONSTITUTION:A radiator 20 is a parallelogram of long lengthwise in side from tilting an upper part of a radiator core 20c frontward, and it is formed so as to cause its vertical lines to become parallel with running air, while a cooling fin 20d is set up inside this radiator core 20c. A radiator hose 18 taking in cooling water becoming high temperature after cooling an engine is connected to an upper part of the radiator 20, while another radiator hose 19 feeding the engine with the cooling water becoming low temperature after heat exchange with the running air at the radiator 20 is connected to the lower part, respectively. And, at the time of passing through a lot of ventilating holes, it receives no resistance of the cooling fin 20d and its direction is not varied at all so that its flow velocity is in no case dropped.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a radiator for a motorcycle.

[Conventional technology]

For example, a motorcycle equipped with a radiator that cools engine cooling water will be explained based on FIGS. 1 and 2.
The motorcycle 1 has a main frame 2 consisting of a cylindrical body having a rectangular cross section with a large vertical width, arranged on both sides of the vehicle body, the tip of which is connected to a head pipe 3, and the connected part is reinforced with a head pipe gusset 4. , Pivot play 1 at the rear end.
5, a seat rail 6 is connected to the upper surface of the intermediate portion, and an engine hanger 7 is connected to the lower portion of the intermediate portion.

A front fork 9 for supporting a front wheel 8 is rotatably installed on the head pipe 3, and can be moved by a handlebar 10.

The pivot plate 5 integrally has the seat 1 to the gusset plate 1-11 on its upper end. When the rear fork 1 is supported, the base end of the rear fork 12 is pivotally supported at the bottom.
A rear wheel 13 is supported at the tip of the rear wheel 12, and a rear suspension device 14 is installed between the rear suspension device 14 and the upper part of the rear wheel 12 from the seat 1 to the gasket 1 to the play 1 to 11.

The engine hanger 7 has a vertical V-shaped carrot 1
5 is supported by the pivots 1 to 1 to 5, and a radiator 16 is mounted in front of the engine 15, and a part of the radiator 16 is connected to the head via mounting brackets 1-168 with numbered holes on both sides of the radiator 16. It is connected to the side of one cylinder body 15a of the engine 15 via a link rod 17 that is connected to the pipe gusset 4, and the lower part is installed on both sides of the cylinder body 1-1. Said Raj] Niichiyo 1
At the top of the engine 6 is a radiator hose 18 that cools the engine 15 and introduces high-temperature cooling water, and at the bottom is a radiator hose 18 that exchanges heat with the running wind through the radiator 16 and sends the low-temperature cooling water to the engine 15. Radiator hoses 19 are connected to each.

The radiator 16 has cooling fins 16d disposed inside a radiator core 16c having a rectangular side shape with a length of Ill, and a large number of ventilation holes 16e are formed in parallel with the upper and lower edges to direct running air to the rear of the vehicle body. A water pipe (not shown) is installed to allow cooling water to be discharged and to flow cooling water into the radiator core 16c.

[Problems to be Solved by the Invention] However, the conventional radiator 16 has an upper part inclined toward the front of the vehicle body due to the installation space A-Iau 1 due to the arrangement of the front wheels 8, engine 15, etc. In many cases, the ventilation holes 16e formed by the cold n] fins 16d are inclined with respect to the traveling wind, and the flow of the traveling wind passing through the ventilation holes 16e of the radiator 16 is Due to the resistance of the cooling fins 16d, the direction of the cooling fins 16d can be changed as shown by arrow A in FIG. 2, which causes a problem in that the flow velocity decreases and the amount of air introduced into the radiator 16 per unit time decreases.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a radiator that does not provide resistance to the wind passing through the common holes.

[Means for solving problems]

As a means for solving the above problems, in the present invention, the engine is disposed in front of the engine with its upper part inclined at an angle of 1/-1 to the front of the vehicle body to cool the engine's cold water or lubricating oil. The radiator for a motorcycle is characterized in that the cooling fins of the radiator are disposed such that a large number of communication holes formed by the cooling fins are parallel to the running wind.

[For production]

By configuring as described above, the running air introduced into the radiator is not subjected to resistance by the cooling fins.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIG. 3.

Components in the drawings that are the same as those in the prior art are given the same reference numerals to simplify the explanation.

A radiator 20 for cooling water of the engine 15 is disposed in front of the engine 15 supported by an engine hanger 7 provided on the main frame 2, with the -L portion inclined toward the front of the vehicle body, and mounting brackets are provided on both sides of the engine 15. 20a, and mounting brackets 1 to 20b are provided on both sides of the lower back on the exhaust side for traveling. is connected to the side of the cylinder body 15a via a link rod 17, and the upper part is tilted forward.

The radiator 20 is formed by tilting the upper part of the radiator core 20c forward so that the side surface shape is a vertically elongated parallelogram, and the upper and lower edges thereof are parallel to the running surface. 206 is arranged.

The cooling fins 20d are, for example, corrugated fins in the form of a corrugated plate, and are arranged so that a large number of ventilation holes 20e formed by the cooling fins 206 in the longitudinal direction of the vehicle body are parallel to the upper and lower edges of the radiator 720G. In the radiator core 20'C, an A-tarpipe (not shown) through which cooling water flows is installed passing through the cooling fins 20d.

Further, a radiator hose 1 is provided at the upper part of the radiator 20, which cools the engine 15 and introduces high-temperature cooling water.
A radiator hose 19 is connected to the lower part of the radiator 8 to send coolant cooled to the engine 15 by exchanging heat with that for running in the radiator 20 .

Therefore, in the radiator 20, the cooling fins 20d are arranged so that the large number of ventilation holes 20e formed by the cooling fins 20d are parallel to the traveling wind, so that the flow of the traveling wind is as shown by arrow B in the ventilation holes 20e. Since the flow does not receive any resistance from the cooling fins 20d and its direction does not change when passing through the radiator 20, the flow velocity does not decrease and the amount of J@ introduced into the radiator 20 does not decrease.

Note that the cooling fins 20d are not limited to the corrugated fins as long as they have good thermal conductivity and have ventilation holes parallel to those for running, but are not limited to the corrugated fins, for example, can be flat fins with lattice-like or honeycomb-like ventilation holes. Even if J: is formed.

〔Effect of the invention〕

In the motorcycle radiator of the present invention, the cooling fins are arranged so that the ventilation holes formed by the cooling fins are parallel to the running direction, so that the cooling fins can resist the running wind introduced into the radiator. As a result, the flow velocity of the traveling air does not decrease when passing through the radiator, and the amount of traveling air introduced into the conventional radiator increases, increasing heat exchange efficiency. It is also applicable to existing motorcycles.

[Brief explanation of drawings]

Figures 1 and 2 show a conventional radiator for a motorcycle. Figure 1 is a side view of the motorcycle showing how the radiator is installed, and Figure 2 is an enlarged side view of the main parts of Figure 1. 3
The figure is an enlarged side view of main parts showing an actual flow example of the present invention.

Claims (1)

[Claims] 1. In a motorcycle radiator that is arranged in front of the engine with its upper part inclined toward the front of the vehicle body and that cools engine cooling water or lubricating oil, the cooling fins of the radiator are connected to a large number of ventilation holes formed by the cooling fins. A radiator for a motorcycle, characterized in that the radiator is arranged so that the radiator is parallel to the traveling wind.