JPH0258558B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a radiator mounted on a motorcycle and a method for manufacturing the same.

2. Description of the Related Art Conventionally, a radiator used to cool a motorcycle engine has a flat shape, and its size is determined depending on the amount of heat dissipation required by the engine. However, on motorcycles, the engine, muffler, etc. are obstacles, so there is a limit to the mounting space for the radiator.
In order to avoid such obstacles, the radiator was installed at an angle with respect to the vehicle body.
However, this reduces the amount of wind intake;
There was a problem that the so-called vehicle speed utilization rate became low and the cooling efficiency decreased.

OBJECT OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to make it possible to mount a radiator on a motorcycle without any inconvenience, even though the installation space is limited, and to make effective use of the space. This makes it possible to make the motorcycle more compact, and it also has a large amount of air intake, so-called vehicle speed utilization rate is high, heat transfer is rapid, so the cooling efficiency is very good, and the strength is very high. In addition to being large and easy to manufacture,
The present invention aims to provide a radiator that can improve the design appearance of a motorcycle and a method for manufacturing the same.

Composition of the Invention In order to achieve the above-mentioned object, the first invention has a plurality of cooling pipes which are arc-shaped when viewed from the side, and the upper and lower ends of these cooling pipes are connected to each other. It consists of a pair of upper and lower tanks, a large number of corrugated fins when viewed from the front, and a pair of side plates that are arcuate when viewed from the side and placed on the left and right sides of the fins, with cooling pipes fitted to the bent edges of each corrugated fin. A notch for fitting is provided, and the middle part of the length of each cooling pipe is fitted into the notch of the corrugated fin, and the cooling pipe and the fin are joined. The gist is a motorcycle radiator that has a recess formed therein for relief.

Next, the second invention has a plurality of cooling pipes bent in an arc shape when viewed from the side, a large number of fins having a wave shape when viewed from the front and having notches for fitting the cooling pipes at the bent edges, and circular fins when viewed from the side. The process involves creating a pair of left and right side plates bent in an arc shape, arranging the arc-shaped cooling pipes in parallel so that the concave side faces the air intake side, and cutting corrugated fins on both sides of the cooling pipes. The cooling pipes are arranged so that they fit into the respective notches, and these cooling pipes, fins, and a pair of upper and lower tanks are combined, and arc-shaped side plates are installed on both the left and right sides of the fins so that the recessed side is the air intake side. The gist of this invention is a method for manufacturing a motorcycle radiator, which is characterized by comprising a step of arranging the radiator so that the radiator becomes radiator, and a step of integrally joining the cooling pipe, fins, tank, and side plate by brazing.

Embodiments Next, embodiments of the present invention will be described based on the drawings.

In this specification, left and right and front and rear are based on FIG. 1, and left refers to the left side of FIG. 1, right refers to the right side, and front refers to the front side of the sheet of paper in FIG. means the same back side.

Further, the motorcycle radiator of the embodiment is made of aluminum.

In the drawings, the motorcycle radiator according to the present invention includes a required number of cooling pipes 1 which are arc-shaped when viewed from the side, and a pair of upper and lower tanks 6 and 7 that communicate with the upper and lower ends of these cooling pipes 1, respectively. It consists of a corrugated fin 2 which is connected to the middle part of the length of the pipe 1 and has a corrugated shape when viewed from the front, and a pair of side plates 10 which are arcuate when viewed from the side and are arranged on both left and right outer sides of the corrugated fin 2. A recess 11 is formed on the front surface of the entrance side A to allow the front wheel of the motorcycle to escape.

The cooling pipes 1 have a perfectly circular cross section, and two cooling pipes 1 in the front and back and seven cooling pipes 1 in the left and right sides are arranged in parallel. Each cooling pipe 1 is bent into an arcuate shape with respect to the air intake side A. The corrugated fins 2 are arranged along both left and right sides of each cooling pipe 1. A pair of semicircular notches 4 are provided at the bent edge of each corrugated fin 2 in a plan view, and the cooling pipes 1 are fitted into these notches 4. Each cooling pipe 1
The bent edges of the corrugated fins 2 on both the left and right sides of the corrugated fins 2 are butted against each other. Each corrugated fin 2 has many slits 5 in the width direction.
A fin material called a so-called louver fin is used. An inlet pipe 8 is connected to an upper tank 6 communicating with the upper end of each cooling pipe 1. Further, an outlet pipe 9 is connected to the lower tank 7 which communicates with the lower end of each cooling pipe 1. A pair of side plates 10 attached to the left and right outer sides of the core 3 are constituted by arcuate band plates, and the bent edges of the left and right outer corrugated fins 2 are brought into contact with the inner surfaces of these plates.

The motorcycle radiator described above is of a so-called vertical type, with tanks 6 and 7 attached to both upper and lower ends of the cooling pipe 1, so that cooling water flows vertically within the cooling pipe 1.

Next, a method for manufacturing a motorcycle radiator according to the present invention will be explained.

First, a required number of cooling pipes 1 are each bent into an arc shape, and a pair of left and right arc-shaped side plates 10 are created.

Next, a corrugated fin 2 having a pair of semicircular notches 4 in the bent edge when viewed from the plane is prepared, and the arc-shaped cooling pipes 1 are arranged so that the concave side is the air intake side A, and the cooling pipes are Corrugated fins 2 are arranged over almost the entire length on both left and right sides of the fins 1, cooling pipes 1 are fitted into notches 4 of the fins 2, and the fins 2 and the cooling pipes 1 are alternately combined. In addition, tanks 6 and 7 are fitted to the upper and lower ends of the cooling pipe 1, respectively, and corrugated fins 2 are fitted on both the left and right sides.
A pair of arc-shaped side plates 10 are placed on the side plate 10 so that the concave side thereof is the air intake side A.

Finally, the cooling pipe 1, the corrugated fins 2, the tanks 6 and 7, and the side plate 10 are joined together by brazing, for example, using a vacuum brazing method, and the front wheel of the motorcycle is placed in front of the air intake side A. A radiator is manufactured having a recess 11 for the purpose.

In the above embodiment, a tube with a perfect circular cross section is used as the cooling tube 1, but it may also have an elliptical cross section.

Effects of the Invention As described above, the motorcycle radiator according to the first aspect of the present invention has a plurality of cooling pipes 1 which are arc-shaped when viewed from the side, and the upper and lower ends of these cooling pipes 1 are communicated with each other. A pair of upper and lower tanks 6 and 7, and a large number of corrugated fins 2 when viewed from the front.
It consists of a pair of arcuate side plates 10 when viewed from the side surfaces arranged on the left and right outer sides of the fins 2, and a notch 4 for fitting a cooling pipe is provided at the bent edge of each corrugated fin 2. The cooling pipe 1 is inserted into the notch 4 of the corrugated fin 2 with the middle part of the length of the pipe 1 fitted into the notch 4 of the corrugated fin 2.
and the fins 2 are joined together, and a recess 11 is formed on the front surface of the air intake side A to allow the front wheel of the motorcycle to escape. Therefore, the space can be used effectively and the motorcycle can be made more compact.
In addition, the radiator has a recess 11 formed on the front surface of the air intake side A, so it is possible to effectively take in the wind that naturally flows along both left and right sides of the front wheel when the motorcycle is running. Compared to when installed in an inclined position, the amount of wind intake is larger, so-called vehicle speed utilization rate is higher,
Very good cooling efficiency. Furthermore, cooling pipe fitting notches 4 are provided at the bent edges of the wavy fins 2 when viewed from the front, and with the cooling pipes 1 fitted into these notches 4, each cooling pipe 1 and fin 2 are
Because the fins 2 are joined, the joint area is larger than when the fins 2 do not have the notches 4, and therefore the strength is very high and vibration resistance is excellent, as well as rapid heat conduction and heat dissipation. It has the effect of being highly efficient. Furthermore, since the radiator is curved in an arcuate shape, when it is attached to the motorcycle body, it has the advantage of having a better appearance than when attaching a conventional flat-shaped radiator.

Further, as described above, the method for manufacturing a motorcycle radiator according to the second aspect of the present invention includes a plurality of cooling pipes 1 bent in an arc shape when viewed from the side, and a notch 4 for fitting the cooling pipes at the bent edge. A process of creating a large number of wavy fins 2 when viewed from the front, and a pair of left and right side plates 10 bent in an arc shape when viewed from the side, and forming the arc-shaped cooling pipe 1 so that the recessed side of these fins is the air intake side A.
In addition to arranging the cooling pipes in parallel so that
Corrugated fins 2 are arranged on both sides of the fins 2 so that the cooling pipes 1 fit into the notches 4 of the fins 2, and the cooling pipes 1, fins 2, and a pair of upper and lower tanks 6,
7 and arranging arc-shaped side plates 10 on both left and right outer sides of the fins 2 so that the concave sides thereof become the air intake side A, and the cooling pipe 1, the fins 2, the tanks 6 and 7, and the side plates. A notch 4 is provided at the bent edge of the serpentine fin 2, and the cooling pipe 1 is fitted into the notch 4, so that the cooling pipe 1 is connected to the fin 2 by brazing. 1 is extremely easy to position.
In addition, the cooling pipe 1 and the side plate 10 can be easily and sufficiently bent, and all parts can be assembled and then joined together, so that the cooling pipe 1 and the side plate 10 can have the desired shape and the cooling efficiency. The effect is that a very good radiator can be manufactured very easily and reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a partially enlarged perspective view of the core, and FIG. 4 is an enlarged cross section taken along the line of FIG. 1. It is a diagram. 1... Cooling pipe, 2... Corrugated fin, 3
... Core, 4 ... Notch, 6, 7 ... Tank, 1
0...Side plate, 11...Recess, A...Air intake side.

Claims (1)

[Claims] 1. A plurality of cooling pipes 1 having an arc shape when viewed from the side,
A pair of upper and lower tanks 6 and 7 are connected to the upper and lower ends of these cooling pipes 1, respectively, a large number of wavy fins 2 when viewed from the front, and an arcuate shape when viewed from the side surface arranged on the left and right outer sides of the fins 2. A notch 4 for fitting a cooling pipe is provided at the bent edge of each corrugated fin 2.
The cooling pipe 1 and the fin 2 are joined with the middle part of the length fitted into the notch 4 of the corrugated fin 2, and a recess 11 is formed on the front surface of the air intake side A for letting the front wheel of the motorcycle escape. Motorcycle radiator formed. 2 A plurality of cooling pipes 1 bent in an arc shape when viewed from the side, a large number of fins 2 having a corrugated shape when viewed from the front and having a notch 4 for fitting the cooling pipes at the bent edge, and a number of fins 2 having an arc shape when viewed from the side. A step of creating a pair of bent left and right side plates 10, arranging the arc-shaped cooling pipes 1 in parallel so that the concave side is the air intake side A, and placing corrugated fins 2 on both sides of the cooling pipe 1. The cooling pipes 1 are arranged so as to fit into the respective notches 4, and the cooling pipes 1, the fins 2, and the pair of upper and lower tanks 6, 7 are combined, and arc-shaped holes are formed on both the left and right outer sides of the fins 2. a step of arranging the side plates 10 such that the concave sides thereof are the air intake side A;
A method for manufacturing a motorcycle radiator, comprising the step of integrally joining a cooling pipe 1, fins 2, tanks 6, 7, and side plates 10 by brazing.