JPH09216559A - Radiator unit for rail-car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize a running wind effectively, by providing exhaust ducts at both side openings of a center duct space between a pair of radiators along the longitudinal direction, providing flappers for exhaust to the cooling fans of the exhaust ducts, and providing a flapper for suction to a running wind leading-in duct provided at the side of radiators. SOLUTION: A central duct space 27 is formed between radiators 21a and 21b opposing along the longitudinal direction, electric fans 31 and 33 are provided in the exhaust ducts 29a and 29b connected to the openings at both sides of the duct space 27, and flappers 35a and 35b for exhaust opened only to the outer side, to the above connections At both sides of the opening 41 of running wind leading-in ducts 37 and 39, flappers 43a and 43b opened only to the inner side are provided And in the advancing condition of the vehicle, the elctric fan 33 is operated, the running wind from a running wind leading-in port 45a passes through the flapper for 43a for suction, the opening 41, the cores 21d of the radiators 21a and 21b, the central duct space 27, and the flapper 35b for exhaust, and then exhausted from the exhaust duct 29b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator unit for a diesel locomotive, such as a diesel locomotive.

[0002]

2. Description of the Related Art Generally, a diesel locomotive such as a diesel locomotive is equipped with a radiator unit for a diesel locomotive in which a plurality of radiators are combined to cool a diesel engine. FIG. 8 shows a radiator unit for a railcar of this type. In this radiator unit for a railcar, a plurality of radiators 11 are arranged in a U-shape.
By covering the upper and lower portions of the radiator 11 with the plate 13, the duct space 15 is provided between the radiators 11.
Are formed.

[0003] An engine fan 17 driven by the engine is arranged on the opening side of the duct space 15.
By driving the engine fan 17, external air is guided from the core 11 a of the radiator 11 into the duct space 15, and the cooling water of the radiator 11 is cooled.

[0004]

However, in such a conventional radiator unit for a diesel car, the external air is supplied only by the engine fan 17 driven by the engine without using the traveling wind generated by the traveling of the vehicle. Because it is introduced into the core portion 11a of
There is a problem that the engine fan 17 becomes large and the total weight of the vehicle increases.

[0005] That is, in general, a diesel car is different from a normal car in that forward and backward travel is ascending and descending of a railway, and the direction of traveling wind with respect to the vehicle is inverted by 180 degrees between ascending and descending. Therefore, the cooling system is very large compared with a vehicle such as a truck of the same output utilizing the traveling wind. The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a radiator unit for a railcar that can effectively use a traveling wind generated by traveling of a vehicle.

[0006]

According to a first aspect of the present invention, there is provided a radiator unit for a diesel car, wherein a pair of radiators are arranged facing each other along a longitudinal direction of the vehicle and at a predetermined distance in the horizontal direction, and these radiators. A central duct space formed between the pair of radiators by covering an upper part and a lower part of the radiator, a pair of exhaust ducts connected to both side openings of the central duct space, and arranged in the exhaust duct. A cooling fan that exhausts air in the central duct space, an exhaust flapper that is located closer to the central duct space than the cooling fan of the exhaust duct and that is opened only toward the outside, and the radiator side. And a traveling wind introduction duct having an opening in a portion corresponding to the core portion of the radiator, and arranged on both sides of the opening of the traveling wind introduction duct. Re is characterized in that it comprises an intake flapper that is Hiraku Nomi inward.

A radiator unit for a railcar according to a second aspect is the radiator unit for a railcar according to the first aspect, wherein the exhaust port of the exhaust duct is opened downward. A radiator unit for a railcar according to claim 3 is the radiator unit for a railcar according to claim 1 or 2, wherein an opening area of a traveling wind introduction port of the traveling wind introduction duct is larger than a passage area of a central portion. And

According to a fourth aspect of the present invention, there is provided a radiator unit for a diesel car, which has a pair of radiators arranged in a V shape in a longitudinal direction of the vehicle and a space between the upper and lower portions of the radiators. A central duct space to be formed, a cooling fan which is opened at one side of the central duct space to exhaust air in the central duct space, and a portion which is arranged laterally of the radiator and corresponds to a core portion of the radiator. A traveling wind introduction duct having an opening;
Intake flappers, which are arranged on both sides of the opening of the traveling wind introduction duct and are opened only toward the inside, are provided.

In the radiator unit for a railcar according to the first aspect of the present invention, when the vehicle moves forward, the cooling fan on the rear side is operated, and the traveling wind from the traveling wind introduction port on the front side of the traveling wind introduction duct sucks the intake air on the front side. After passing through the flapper for air, flowing into the core part of the radiator from the opening, passing through the core part, passing through the central duct space and passing through the exhaust flapper on the rear side,
It is discharged to the outside from the exhaust port of the rear exhaust duct.

At this time, the intake flapper on the rear side and the exhaust flapper on the front side are automatically closed by wind pressure. On the other hand, when the vehicle is moving backwards, the cooling fan on the front side is activated, and the running wind from the running wind inlet on the rear side of the running wind introduction duct flows through the rear intake air flapper into the radiator core through the opening. Then, after passing through the core portion, it passes through the central duct space, passes through the front side exhaust flapper, and is discharged to the outside from the exhaust port of the front side exhaust duct.

At this time, the front intake flapper and the rear exhaust flapper are automatically closed by wind pressure. Furthermore, when the vehicle is stopped, the front and rear cooling fans are operated, and the air from the front and rear traveling air inlets of the traveling air introducing duct passes through the front and rear intake flappers and exits from the opening. After flowing into the core portion of the radiator and passing through the core portion, it passes through the central duct space, passes through the front and rear exhaust flappers, and is discharged to the outside from the exhaust ports of the front and rear exhaust ducts.

In the radiator unit for a railcar of claim 2, the exhaust port of the exhaust duct is opened downward, and the exhaust air from the exhaust duct is exhausted toward the ground. In the radiator unit for a railcar according to the third aspect, the opening area of the traveling air introduction port of the traveling air introduction duct is made larger than the passage area of the central portion. In the radiator unit for a railcar according to claim 4, when the vehicle is moving forward, the cooling fan is operated, and the traveling wind from the front side of the traveling wind introduction duct flows through the front side intake flapper into the core section of the radiator from the opening. ,
After passing through the core part, it passes through the central duct space and is discharged to the outside from the cooling fan.

At this time, the intake flapper on the rear side is automatically closed by wind pressure. On the other hand, when the vehicle is moving backward, the cooling fan is activated, and the traveling wind from the rear side of the traveling air introduction duct passes through the rear intake flapper, flows into the radiator core through the opening, and passes through the core. After that, it passes through the central duct space and is discharged to the outside from the cooling fan.

At this time, the intake flapper on the front side is automatically closed by wind pressure. Further, when the vehicle is stopped, the cooling fan is operated, and the air from the front side and the rear side of the traveling wind introduction duct flows into the radiator core through the opening through the front and rear intake flappers, and the core part After passing through, it is discharged to the outside from the cooling fan through the central duct space.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of a radiator unit for a railcar according to the present invention. In the drawings, reference numerals 21a and 21b are arranged at predetermined intervals in the horizontal direction along the longitudinal direction of the vehicle. 2 shows a pair of radiators that are arranged to face each other.

The radiators 21a and 21b are formed by disposing a core portion 21d between a pair of tanks 21c. The core portion 21d is formed by alternately stacking tubes 21e and corrugated fins 21f. Tank 2
An inlet pipe 21g or an outlet pipe 21h is connected to 1c.

A space between the upper and lower portions of the pair of radiators 21a and 21b is covered with an upper plate 23 and a lower plate 25, and a central duct space 27 is formed between the radiators 21a and 21b. The upper plate 23 is located on the floor side of the vehicle (not shown). The exhaust ducts 29a, 2a are provided in the openings formed on both sides of the central duct space 27, respectively.
9b is connected.

Exhaust ports 29c of the exhaust ducts 29a and 29b
Is opened downward. Exhaust duct 29a,
Electric fans 31 and 33 for exhausting the air in the central duct space 27 are arranged in 29b. Exhaust duct 2
Exhaust flappers 35a, 3 that are opened only toward the outside are provided at the connecting portions of 9a, 29b to the central duct space 27.
5b are arranged.

On the sides of the radiators 21a and 21b, traveling wind introducing ducts 37 and 39 having a rectangular cross section and having a length longer than those of the radiators 21a and 21b are arranged. The radiator 21 in the traveling air introduction ducts 37, 39
An opening 41 is formed in a portion of a and 21b corresponding to the core portion 21d. And the traveling wind introduction duct 3
Intake flappers 43a and 43b, which are opened only inward, are arranged on both sides of the opening 41 of the holes 7 and 39, respectively.

The opening areas of the traveling wind introduction ports 45a, 45b of the traveling wind introduction ducts 37, 39 are made larger than the passage area of the central portion. Further, in this embodiment, the traveling wind introducing ducts 37, 39 are made of resin in order to reduce the weight. In the radiator unit for railcars described above, the radiators 21a, 21b are moved when the vehicle moves forward.
When the temperature of the cooling water is higher than a predetermined temperature, as shown in (a) and (b) of FIG.
3 is operated, and the traveling wind from the traveling wind introduction port 45a on the front side of the traveling wind introduction ducts 37, 39 passes through the front intake flapper 43a and the radiator 21 from the opening 41.
After flowing into the core part 21d of a, 21b, passing through the core part 21d, passing through the central duct space 27, passing through the exhaust flapper 35b on the rear side, to the outside from the exhaust port 29c of the exhaust duct 29b on the rear side. Is discharged.

At this time, the rear intake flapper 43b and the front exhaust flapper 35a are automatically closed by wind pressure. On the other hand, when the temperature of the cooling water of the radiators 21a and 21b is higher than a predetermined temperature when the vehicle is moving backward, as shown in (a) and (b) of FIG.
Only the electric fan 31 on the front side is operated, and the traveling wind from the traveling wind introduction port 45b on the rear side of the traveling wind introduction ducts 37, 39 passes through the rear side intake flapper 43b and from the opening 41 to the radiators 21a, 21b. Flowing into the core portion 21d,
After passing through the core portion 21d, it passes through the central duct space 27, passes through the front side exhaust flapper 35a, and is discharged to the outside from the exhaust port 29c of the front side exhaust duct 29a.

At this time, the front intake flapper 43a and the rear exhaust flapper 35b are automatically closed by wind pressure. Furthermore, when the temperature of the cooling water of the radiators 21a, 21b is higher than a predetermined temperature when the vehicle is stopped, the front and rear electric fans 31, 33 are turned on as shown in FIGS. 6 (a) and 6 (b). At the same time, the air from the front and rear traveling wind introduction ports 45a, 45b of the traveling wind introduction ducts 37, 39 passes through the front and rear intake flappers 43a, 43b from the opening 41 to the radiators 21a, 21b. Of the central duct space 27 after flowing into the core portion 21d of the
Front and rear exhaust flappers 35a, 35
b, passing through the front and rear exhaust ducts 29a, 2
It is discharged to the outside from the exhaust port 29c of 9b.

In the radiator unit for a railcar constructed as described above, traveling wind is introduced into the traveling wind introduction ducts 37, 39.
After being guided to the core portions 21d of the radiators 21a and 21b, the air is exhausted by the electric fans 31 and 33. Therefore, traveling wind generated by traveling of the vehicle can be effectively used. Further, since the running wind is used, it is possible to use the small and lightweight electric fans 31 and 33 in place of the large and heavy engine fan, and it is possible to significantly reduce the total weight of the vehicle as compared with the conventional one. it can.

Further, in the above-described radiator unit for a railcar, since the exhaust ports 29c of the exhaust ducts 29a and 29b are opened downward, the outflow of exhaust air to the floor side of the vehicle can be reduced and the floor temperature can be reduced. Can be prevented from rising. Furthermore, in the above-mentioned radiator unit for railcars, the traveling wind introduction port 4 of the traveling wind introduction ducts 37 and 39 is used.
Since the opening areas of 5a and 45b are made larger than the passage area of the central portion, the traveling wind can be efficiently introduced into the traveling wind introduction ducts 37 and 39, and the radiators 21a and 21b.
The cooling efficiency of can be improved.

FIG. 7 shows a second embodiment of the radiator unit for a railcar according to the present invention. In this embodiment, a pair of radiators 21 having a V shape in the longitudinal direction of the vehicle.
a and 21b are arranged. Radiators 21 of these
A central duct space 27 is formed between the pair of radiators 21a and 21b by covering the upper part and the lower part of the a and 21b with the plate member 23.

A cooling fan 51, which is an engine fan for exhausting the air in the central duct space 27, is opened at one side of the central duct space 27. Radiator 21a,
A traveling wind introduction duct 3 having an opening at a portion corresponding to the core portion of the radiator 21a, 21b on the side of 21b.
7, 39 are arranged. In addition, intake flappers 43a and 43b, which are opened only toward the inside, are arranged on both sides of the openings of the traveling air introduction ducts 37 and 39.

In the radiator unit for a railcar described above, when the vehicle is moving forward, the cooling fan 51 is operated, and the traveling wind on the front side of the traveling wind introducing ducts 37 and 39 passes through the front intake flapper 43a and the radiator 21 from the opening.
After flowing into the core parts of a and 21b and passing through the core parts, they are discharged to the outside from the cooling fan 51 through the central duct space 27.

At this time, the intake flapper 43b on the rear side is automatically closed by the wind pressure. On the other hand, when the vehicle is moving backward, the cooling fan 51 is operated so that the traveling wind on the rear side of the traveling wind introducing ducts 37, 39 passes through the rear intake flapper 43b and the radiator 21a, 2 from the opening.
After flowing into the core portion 1b and passing through the core portion, it is discharged to the outside from the cooling fan 51 through the central duct space 27.

At this time, the intake flapper 43a on the front side is automatically closed by the wind pressure. further,
When the vehicle is stopped, the cooling fan 51 is operated, and the air on the front side and the rear side of the traveling wind introduction ducts 37, 39 passes through the front and rear intake flappers 43a, 43b and from the opening to the core of the radiator 21a, 21b. Into the department,
After passing through the core portion, it passes through the central duct space 27 and is discharged to the outside from the cooling fan 51.

In the radiator unit for railcars described above, after the traveling wind is guided from the traveling wind introducing ducts 37, 39 to the core portions of the radiators 21a, 21b, the cooling fan 51 is used.
Thus, the exhaust air is exhausted, so that the traveling wind generated by the traveling of the vehicle can be effectively utilized, as in the first embodiment. In addition, in the above-described embodiment, an example in which the radiators 21a and 21b are lateral flow radiators has been described, but vertical flow radiators may be used.

Further, in the above-described first embodiment, the example in which the electric fan is used as the cooling fan has been described, but an engine fan may be used.

[0032]

As described above, in the radiator unit for a railcar according to the first aspect of the invention, after the traveling wind is guided from the traveling wind introduction duct to the core portion of the radiator, it is exhausted by the cooling fan. It is possible to effectively utilize the traveling wind generated by traveling.

In the radiator unit for a railcar of claim 2, since the exhaust port of the exhaust duct is opened downward,
It is possible to reduce the outflow of exhaust air to the floor side of the vehicle. In the radiator unit for a railcar according to claim 3, since the opening area of the traveling wind introduction port of the traveling wind introduction duct is larger than the passage area of the central portion, the traveling wind can be efficiently introduced into the traveling wind introduction duct. . In the radiator unit for a railcar according to claim 4, since the traveling wind is guided from the traveling air introduction duct to the core portion of the radiator and then exhausted by the cooling fan, the traveling wind generated by the traveling of the vehicle can be effectively used. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a railcar radiator unit of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is an explanatory diagram showing an operation of the radiator unit for a railcar of FIG. 1 when the vehicle is moving forward.

5 is an explanatory view showing the operation of the radiator unit for a diesel car of FIG. 1 when the vehicle is moving backward.

FIG. 6 is an explanatory view showing an operation of the radiator unit for a railcar of FIG. 1 when the vehicle is stopped.

FIG. 7 is a perspective view showing a second embodiment of a radiator unit for a railcar of the present invention.

FIG. 8 is a perspective view showing a conventional diesel engine radiator unit.

[Explanation of symbols]

 21a, 21b Radiator 21d Core part 27 Central duct space 29a, 29b Exhaust duct 29c Exhaust port 31, 33 Electric fan 35a, 35b Exhaust flapper 37, 39 Traveling wind introduction duct 41 Opening 43a, 43b Intake flapper 45a, 45b Travel Wind inlet

Claims (4)

[Claims] 1. A pair of radiators (21a, 21b), which are opposed to each other along a longitudinal direction of a vehicle and at a predetermined interval in a horizontal direction, and between upper portions of these radiators (21a, 21b) and By covering the space between the lower parts, the pair of radiators (21
Central duct space (27) formed between a and 21b)
A pair of exhaust ducts (29a, 29b) connected to both side openings of the central duct space (27); and air in the central duct space (27) arranged in the exhaust ducts (29a, 29b). And a cooling fan (31, 33) for exhausting the exhaust air, and a cooling fan (31, 33b) of the exhaust duct (29a, 29b) which is located closer to the central duct space (27) than the cooling fan (31, 33b) and is open only to the outside. An exhaust flapper (35a, 35b), and an opening (41) at a portion which is arranged laterally of the radiator (21a, 21b) and corresponds to the core portion (21d) of the radiator (21a, 21b). The traveling wind introducing ducts (37, 39) having the opening (4) of the traveling wind introducing ducts (37, 39)
A radiator unit for a railcar, comprising: intake flappers (43a, 43b) arranged on both sides of 1) and opened only toward the inside. 2. The radiator unit for a railcar according to claim 1, wherein an exhaust port (29c) of the exhaust duct (29a, 29b).
A radiator unit for a diesel car, which is characterized in that it is opened downward. 3. The radiator unit for a railcar according to claim 1 or 2, wherein an opening area of the traveling air introduction ports (45a, 45b) of the traveling air introduction ducts (37, 39) is larger than a passage area of a central portion. Radiator unit for diesel railcars characterized by 4. A pair of radiators (21a, 21b) arranged in a V-shape in the longitudinal direction of the vehicle, and the pair of radiators by covering the upper part and the lower part of these radiators (21a, 21b). (21
Central duct space (27) formed between a and 21b)
And a cooling fan (5) which is opened at one side of the central duct space (27) and exhausts air in the central duct space (27).
1) and a traveling wind introducing duct (37, 39) which is arranged laterally of the radiator (21a, 21b) and has an opening (41) in a portion corresponding to the core portion (21d) of the radiator (21a, 21b). ) And the opening (4) of the traveling wind introduction duct (37, 39)
A radiator unit for a railcar, comprising: intake flappers (43a, 43b) arranged on both sides of 1) and opened only toward the inside.