JPS5919882Y2 - Cross flow radiator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cross-flow radiator in which cooling water flows laterally.

More specifically, a water injection pipe is installed to supply cooling water to the side tank, and an air bleed pipe is installed between this water injection pipe and the top of the tank, and when cooling water is injected, the air inside the tank is released through the air bleed pipe, and the water injection pipe is This invention relates to a cross-flow radiator that can reliably fill cooling water up to the top of the tank even if it is formed at a lower position than the top of the tank.

Radiators built into automobiles and the like that cool internal combustion engines with circulating water are broadly divided into down-flow and cross-flow radiators, depending on the direction of flow of cooling water.Cross-flow radiators, which circulate cooling water laterally, have a pair on the left and right sides of the core. A side tank is installed, and cooling water from the internal combustion engine flows out and enters through the inlet pipe and out left pipe, which are individually connected to both side tanks.

The side tank is also provided with a water injection pipe for replacing the cooling water in the radiator or for supplying new cooling water.

In a cross-flow radiator, this water injection pipe cannot be formed on the top surface of the side tank due to the manufacturing process of the radiator and the requirement to reduce the height of the radiator. Installed on the side of the tank, etc.

Therefore, there is a level difference between the top surface of the tank and the water injection pipe position, and the inside of the tank above the water injection pipe becomes bag-shaped.

For this reason, when cooling water is supplied to the radiator from the water injection pipe, the side tank can be filled with cooling water up to the same height as the water injection pipe, but air remains in the upper part of the tank beyond that, and the cooling water is The filling of the radiator is blocked, and it is not possible to supply the same amount of cooling water as the specified capacity of the radiator, and the radiator is not filled with water.

In such a case, for reasons such as not being able to obtain a sufficient amount of water to cool the internal combustion engine, the cooling performance of the internal combustion engine is impaired and the drive of the internal combustion engine is adversely affected.

The inventor of the present invention has developed the present invention in view of the above-mentioned problems in the prior art in order to effectively solve the problems.

The purpose of this invention is to install a cross-flow radiator in which a pair of side tanks are provided on the left and right sides of the core, and a water injection pipe is formed in one of the side tanks at a position lower than the top surface of the tank. When cooling water is injected, the air remaining above the water injection pipe inside the tank is released through this air vent pipe, and even if there is a height difference between the top of the tank and the water injection pipe, the upper part of the tank is To provide a cross-flow set radiator which can surely fill cooling water up to

In addition, the object of the present invention is constructed by simply installing an air vent pipe between the upper part of the tank interior and the water injection pipe,
To provide a cross-flow complete set radiator that can be configured with a simple structure by simply adding new parts without changing the basic structure of the radiator at all.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a sectional view of the side tank and the water injection pipe, and FIG. 2 is a sectional view taken along the line 2-2 in FIG.

This cross flow complete radiator has 1 tube in the center.
, a core 3 consisting of fins 2, a pair of side tanks 4 and 5 are assembled on the left and right sides of the core 3, and an inlet vibe and an out left pipe (not shown) extending toward the internal combustion engine are connected to both side tanks 4 and 5. ing.

The cooling water that flows through the inlet pipe and flows into the side tank 4 from the water jacket of the internal combustion engine passes through the tube 1 and enters the other side tank 5, and while flowing laterally through the core 3 through the tube 1, the cooling water flows through the tube 1 and flows laterally through the core 3. The water is cooled and sent back to the internal combustion engine via an outleft pipe connected to the side tank 5, and circulated through a waterway system consisting of a radiator, a water jacket of the internal combustion engine, etc.

A water injection vibro that supplies cooling water to the radiator is attached to one of the side tanks 5, and this water injection vibro is formed in an L shape, and the thin end portion 6a is inserted horizontally into the side tank 5, and the tip flange portion 6b is inserted horizontally into the side tank 5. It is integrated with the side tank 5 by joining it to the tank interior.

Further, holes 6C are formed in the narrow diameter portion 6a, and cooling water is filled into the tank.

The water injection vibro is installed at a position on the back surface 5a of the tank 5, lower than the tank top surface 5b, which allows the height of the radiator to be smaller than when the water injection vibro is installed on the tank top surface 5b. To shorten the vertical size of a cross-flow set radiator in which a pair of side tanks 4 and 5 are arranged on both sides of a core 3 so as to match the height etc.

The upper end of the upright portion 6d of the water injection vibro protrudes from the tank upper surface 5b by an appropriate length, and a cap 7 is placed on the open end surface thereof.

An air bleed pipe 8 is provided inside the water injection vibro along the vibro, and in the illustrated example, the inner wall of the water injection vibro constitutes a part of the air bleed pipe 8, but the water injection vibro and the air bleed pipe 8 can of course be separated. It can also be used as a body.

The air vent pipe 8 is formed into a substantially J-shape by an upright front part 8a, a rear part 8b, and a middle part 8C, and the rear part 8b extends parallel to the upright part 6d of the water injection vibro to near the upper end of the vibro, and the opening 8d is connected to the water injection vibro. The water inlet portion is communicated with the outside air when the jug 7 is removed.

The front portion 8a is bent upward along the inner wall of the rear surface 5a of the side tank 5, and is extended to the upper part of the tank interior, and the opening 8e is inserted into the inner surface of the tank top surface 5b with a small gap. to face.

As described above, the air vent pipe 8 is installed between the inner chamber upper part S of the side tank 5 and the water injection vibro, and the inner chamber S and the water injection vibro are brought into communication.

When the cap 7 is removed and cooling water is injected from the water injection vibro, the cooling water enters the radiator through the holes 6C, and as the cooling water is supplied, the water level in the side tank 5 rises.

When the water level exceeds the height position A of the water injection vibro, the air remaining in the upper part S of the tank interior is released to the outside air from the open end of the top surface of the water injection vibro through the air vent pipe 8 and escapes.

The water level can rise to the front end opening 8e of the air vent pipe 8, and the air venting action of the pipe 8 allows the radiator to be filled with cooling water to a substantially full state.

Therefore, the water injection vibro is installed at a lower position than the tank top surface 5b, and even if the tank interior upper part S is bag-shaped, the cooling water is filled with an amount of water approximately equal to the radiator capacity, and the water level rises to the height position opening. .

FIG. 3 shows another embodiment, in which the air vent pipe 8' is not provided inside the water injection vibro but is exposed to the outside, and is connected to the upper internal chamber S of the side tank 5 and the upper end water injection port of the water injection vibro. It is constructed in a straight line, with openings 8'd and 8' at both ends.
e was opened at the top of the tank and at the water inlet.

This also allows the remaining air that collects in the upper part S of the tank 5 when the cooling water is injected to escape, making it possible to reliably fill the tank 5 with cooling water up to the upper part.

According to this embodiment, since the air vent pipe 8 is installed outside the side tank at the upper part of the side tank 5 and the upper end of the water injection vibrator, the effect as a reinforcing member can be produced.

In this way, the shape of the air vent pipe and its mounting position are arbitrary, and by providing the air vent pipe, the radiator can be filled with water, so it is possible to freely set the mounting position of the water injection pipe relative to the side tank. .

As is clear from the above explanation, according to the present invention, air can be removed from the upper part of the tank when cooling water is injected using the air vent pipe, so even if there is a height difference between the top surface of the tank and the water injection pipe, this The water injection pipe can be installed at a position lower than the top of the tank without any problems, and it is possible to fill the cooling water with an amount approximately equal to the specified capacity of the radiator, making it possible to obtain a sufficient filling amount. and the above can be achieved by simply adding a new air vent pipe,
There is no need to change the basic structure of the radiator, and it has various advantages such as a simple structure.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the side tank and water injection pipe portion, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and FIG. 3 is a view similar to FIG. 1 showing another embodiment. In the drawings, 3 is the core, 4 and 5 are side tanks, 6 is a water injection pipe, 8 and 8' are air vent pipes, and S is the upper part of the inner chamber of the tank.

Claims (1)

[Scope of utility model registration request] In a cross-flow radiator with a pair of side tanks on the left and right sides of the core, and a water injection pipe attached to one of the side tanks at a position lower than the top of the tank, the upper part of the side tank and the water injection port of the water injection pipe A cross-flow radiator characterized by having an air vent pipe installed in a straight line between the tank and the tank to release air remaining in the upper part of the tank when cooling water is injected.