JPH1114283A - Drift type radiator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separate and remove the bubbles contained in cooling water without fail, concerning a drift type radiator where tubes and fins are arranged alternately between a tank on inlet side and a tank on outlet side counterposed apart in horizontal direction so as to form a core part. SOLUTION: A partition wall 29 is made in the axial direction of a tank 13 on outlet side, and a tank chamber 31, on the side of the core part 19, and a gas-water separating chamber 33, on opposite side from the core part 19, are made and a separation chamber inflow port 35 is made at the partition wall 29, and also a separation chamber outflow port 43 is made under the separation chamber inflow port 35, and a cap 47 for pressure adjustment is opened in the gas-water separating chamber 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a core by alternately arranging tubes and fins between an inlet-side tank and an outlet-side tank which are horizontally opposed to each other and spaced apart from each other. The present invention relates to a lateral flow radiator.

[0002]

2. Description of the Related Art Conventionally, a transverse flow type radiator having a core portion formed by alternately disposing tubes and fins between an inlet tank and an outlet tank which are opposed to each other with a horizontal space therebetween. For example, JP-A-60-1690
No. 95, Japanese Utility Model Laid-Open No. 3-30527, and the like are known.

FIG. 6 shows a lateral flow type radiator of this type. In this lateral flow type radiator, a tube is provided between an inlet-side tank 1 and an outlet-side tank 2 which are horizontally opposed to each other. The core portion 5 is formed by alternately arranging the fins 3 and the fins 4. And the inlet side tank 1
An inlet pipe 6 through which cooling water flows is opened, and an outlet pipe 7 through which cooling water flows out is opened in the outlet tank 2.

[0004] A cap 8 for adjusting pressure is arranged on the upper end surface of the outlet side tank 2. In such a lateral flow type radiator, the inlet side tank 1 is connected to the inlet pipe 6.
Is cooled while flowing in the tube 3 of the core portion 5 in the horizontal direction, and then flows into the outlet side tank 2,
Circulated from the outlet pipe 7 to the engine side.

[0005]

However, in such a conventional lateral flow type radiator, the uppermost tube 3 is generally disposed near the upper end surface of the outlet side tank 2, so that the outlet side tank 2 has It is difficult to form a sufficient space S1 for air / water separation between the pressure adjusting cap 8 disposed on the upper end face and the cooling water, and the cooling water is not separated without bubbles in the cooling water being separated. And the heat exchange efficiency decreases.

As shown in FIG. 7, in a vertical flow type radiator in which an inlet-side tank 9 and an outlet-side tank 10 are arranged at intervals in a vertical direction, the inlet-side tank 9 is arranged horizontally. A relatively sufficient space S2 for separating air and water is formed between the cap 8 and the cooling water. The present invention
The present invention has been made to solve the conventional problem, and has as its object to provide a lateral flow radiator capable of reliably separating and removing bubbles contained in cooling water.

[0007]

According to a first aspect of the present invention, there is provided a lateral flow type radiator in which tubes and fins are alternately arranged between an inlet tank and an outlet tank which are horizontally opposed to each other. Forming a core portion, opening an inlet pipe for flowing cooling water into the inlet tank, opening an outlet pipe for flowing cooling water to the outlet tank,
In a lateral flow radiator in which a cap for pressure adjustment is arranged on an upper end surface of the outlet side tank, a partition wall is formed in an axial direction of the outlet side tank, and a tank chamber is provided on the core portion side, and A steam-water separation chamber is formed on the opposite side of the
A separation chamber inflow port is formed in the partition wall, a separation chamber outflow port is formed below the separation chamber inflow port, and a pressure adjustment cap is opened in the steam-water separation chamber. .

According to a second aspect of the present invention, in the lateral flow type radiator according to the first aspect, the outlet side tank is formed by extrusion molding of aluminum, and the partition wall is formed integrally with the outlet side tank. It is characterized by the following. According to a third aspect of the present invention, there is provided a lateral flow radiator according to the first or second aspect, wherein an opening area of the separation chamber outlet is formed smaller than an opening area of the separation chamber inlet. .

According to a fourth aspect of the present invention, there is provided a lateral flow type radiator according to any one of the first to third aspects, wherein the separation chamber outlet is connected to the tank chamber of the outlet side tank, the steam separator, and the steam chamber. It is a connection port of the outlet pipe formed straddling.

(Function) In the lateral flow type radiator of the first aspect, the cooling water flowing from the inlet pipe to the inlet side tank is:
After being cooled while flowing in the tube of the core part in the horizontal direction, it flows into the tank chamber of the outlet side tank and is circulated from the outlet pipe to the engine side. Then, a part of the cooling water flowing into the outlet-side tank flows into the steam-water separation chamber from the separation chamber inlet formed in the partition wall, and after the bubbles in the cooling water are separated in the steam-water separation chamber, the separation is performed. After passing through the chamber outlet, it is circulated from the outlet pipe to the engine side together with the cooling water in the tank chamber.

On the other hand, only the air bubbles accumulated in the upper part of the gas-water separation chamber are discharged to the reserve tank side by opening the valve of the cap due to an increase in the pressure of the water-water separation chamber. Then, when the pressure in the steam-water separation chamber becomes negative, only the cooling water in the reserve tank is returned to the steam-water separation chamber, and bubbles in the cooling water are reduced. In the lateral flow type radiator of the second aspect, the outlet side tank is formed by extrusion molding of aluminum, and the partition wall is formed integrally with the outlet side tank.

According to the third aspect of the present invention, the opening area of the outlet of the separation chamber is formed smaller than the opening area of the inlet of the separation chamber, and the residence time of the cooling water in the water / water separation chamber is lengthened. In the lateral flow type radiator of the fourth aspect, the outlet of the separation chamber is a connection port of an outlet pipe formed across the tank chamber of the outlet side tank and the steam separation chamber.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show one embodiment of the cross-flow radiator of the present invention. In these figures, reference numerals 11 and 13 denote an inlet-side tank and an outlet-side tank which are arranged to face each other with a horizontal space therebetween.

The inlet tank 11 and the outlet tank 13
A core portion 19 formed by alternately arranging the tubes 15 and the fins 17 is formed between them. Inlet side tank 1
An inlet pipe 21 through which cooling water flows in is opened at the upper part of 1, and an outlet pipe 23 through which cooling water flows out is opened at the lower part of the outlet side tank 13.

In this embodiment, the inlet tank 11 and the outlet tank 13 are formed by extruding aluminum, and end plates 25 and 27 made of aluminum clad material are brazed to both ends. As shown in FIG. 3, a partition wall 29 is formed integrally with the outlet tank 13 along the axial direction of the outlet tank 13 during extrusion molding.

The partition wall 29 forms a tank chamber 31 on the core section 19 side, and a steam-water separation chamber 33 on the opposite side to the core section 19. In the upper part of the partition wall 29, a separation chamber inlet 35 is formed. The separation chamber inlet 35 is formed by performing drilling or the like from the outer surface of the outlet tank 13 as shown in FIG.

The through hole 37 formed on the outer surface of the outlet tank 13 is sealed by brazing the patch 39. In this embodiment, as shown in FIG.
A connection port 41 of the outlet pipe 23 is formed in a circular shape below the outlet tank 13. The connection port 41 is formed so as to straddle the tank chamber 31 and the steam / water separation chamber 33. The opening on the steam / water separation chamber 33 side is a separation chamber outlet 43, and the opening on the tank chamber 31 side is the cooling water flow. The outlet 45 is provided.

The opening area of the separation chamber outlet 43 is
It is made smaller than the opening area of the cooling water outlet 45, and at the same time,
The opening area of the separation chamber inlet 35 is smaller than the opening area. An opening is formed in the upper end plate 27 of the outlet-side tank 13, and a pressure adjusting cap 47 is arranged in this opening.

The cap 47 is connected to a reserve tank 51 by a pipe 49. In the above-described lateral flow radiator, the cooling water flowing into the inlet side tank 11 from the inlet pipe 21 is cooled while flowing in the tube 15 of the core portion 19 in the horizontal direction, and then flows into the tank chamber 31 of the outlet side tank 13. Then, it is circulated from the outlet pipe 23 to the engine side.

A part of the cooling water flowing into the outlet side tank 13 is supplied to the separation chamber inlet 35 formed in the partition wall 29.
After flowing into the steam-water separation chamber 33 from the air and separating the bubbles B in the cooling water in the steam-water separation chamber 33, the gas flows through the separation chamber outlet 43 and the outlet pipe 23 together with the cooling water in the tank chamber 31 from the engine. Circulated to the side. On the other hand, only the air bubbles B collected in the upper part of the water / water separation chamber 33 are discharged to the reserve tank 51 by opening the cap 47 due to an increase in the pressure of the air / water separation chamber 33.

When the inside of the steam / water separation chamber 33 becomes a negative pressure, only the cooling water in the reserve tank 51 is supplied to the steam / water separation chamber 3.
3 and the bubbles B in the cooling water are gradually reduced. In the lateral flow type radiator configured as described above, the partition wall 29 is formed in the axial direction of the outlet tank 13, the tank chamber 31 is provided on the core part 19 side, and the steam-water separation chamber is provided on the opposite side of the core part 19. 33, a separation chamber inlet 35 is formed in the partition wall 29, and a separation chamber outlet 43 is formed below the separation chamber inlet 35 of the partition wall 29, so that a pressure adjustment for the steam-water separation chamber 33 is performed. Since the cap 47 is opened, air bubbles contained in the cooling water can be reliably separated and removed.

Further, since the outlet side tank 13 is formed by extruding aluminum, the partition wall 29 can be easily and reliably integrally formed with the outlet side tank 13.

Further, in the above-mentioned lateral flow type radiator, the opening area of the separation chamber outlet 43 is determined by the separation chamber inlet 35
Is formed smaller than the opening area of the cooling water, the residence time of the cooling water in the water / water separation chamber 33 becomes longer, and bubbles can be more reliably separated from the cooling water. Further, since the connection port 41 of the outlet pipe 23 is formed across the tank chamber 31 of the outlet tank 13 and the steam separation chamber 33, the separation chamber outlet 43 can be formed easily and reliably.

In the above-described embodiment, an example in which the separation chamber outlet 43 is shared with the connection port 41 of the outlet pipe 23 has been described. However, the present invention is not limited to this embodiment. Separation chamber inlet 35 of wall 29
A through-hole may be formed below the opening, and this may be used as an outlet for the separation chamber.

[0025]

As described above, in the lateral flow type radiator of the first aspect, the partition wall is formed in the axial direction of the outlet side tank, and the tank chamber is provided on the core part side and the air is provided on the side opposite to the core part. A water separation chamber was formed, a separation chamber inlet was formed in the partition wall, and a separation chamber outlet was formed below the separation chamber inlet of the partition wall, and a cap for pressure adjustment was opened in the gas-water separation chamber. Therefore, bubbles contained in the cooling water can be reliably separated and removed.

According to the second aspect of the present invention, since the outlet tank is formed by extrusion molding of aluminum, the partition wall can be easily and reliably formed integrally with the outlet tank. In the lateral flow type radiator of the third aspect, the opening area of the separation chamber outlet is formed smaller than the opening area of the separation chamber inlet, so that the residence time of the cooling water in the water / water separation chamber becomes longer, and bubbles are generated from the cooling water. Separation can be performed more reliably.

In the lateral flow type radiator according to the fourth aspect, since the connection port of the outlet pipe is formed across the tank chamber of the outlet side tank and the steam separator, the outlet of the separation chamber can be formed easily and reliably. it can.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing one embodiment of a lateral flow type radiator of the present invention.

FIG. 2 is a perspective view showing the lateral flow type radiator of FIG. 1;

FIG. 3 is a sectional view showing an outlet-side tank of the lateral-flow radiator of FIG. 1;

FIG. 4 is a perspective view showing a separation chamber inlet of the lateral flow type radiator of FIG. 1 and its vicinity.

FIG. 5 is a perspective view showing a separation chamber outlet of the lateral flow type radiator of FIG. 1 and its vicinity.

FIG. 6 is a front view showing a conventional lateral flow radiator.

FIG. 7 is a front view showing a vertical flow radiator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Inlet side tank 13 Outlet side tank 15 Tube 17 Fin 19 Core part 21 Inlet pipe 23 Outlet pipe 29 Partition wall 31 Tank room 33 Air / water separation room 35 Separation room inflow 41 Connection port 43 Separation room outflow 47 Cap

Claims (4)

[Claims] 1. A tube (15) and a fin (17) are alternately arranged between an inlet-side tank (11) and an outlet-side tank (13) which are arranged to face each other at a horizontal interval. An outlet pipe (23) which forms a core part (19), opens an inlet pipe (21) through which the cooling water flows into the inlet side tank (11), and flows out the cooling water into the outlet side tank (13); And the outlet side tank (1
3) A lateral flow radiator having a pressure adjusting cap (47) disposed on the upper end surface thereof, wherein a partition wall (29) extends in the axial direction of the outlet side tank (13).
And a tank chamber (31) is provided on the core (19) side.
A steam-water separation chamber (33) on the opposite side to the core (19).
And the separation chamber inlet (35) is formed in the partition wall (29).
And a separation chamber outlet (43) is formed below the separation chamber inlet (35), and the steam-water separation chamber (3) is formed.
3) A lateral flow type radiator characterized in that a pressure adjusting cap (47) is opened in (3). 2. The lateral flow radiator according to claim 1, wherein the outlet-side tank (13) is formed by extruding aluminum, and the partition wall (29) is integrally formed with the outlet-side tank (13). A cross-flow radiator characterized in that: 3. The lateral flow radiator according to claim 1, wherein an opening area of the separation chamber outlet (43) is formed smaller than an opening area of the separation chamber inlet (35). And a horizontal flow radiator. 4. The lateral flow radiator according to claim 1, wherein the separation chamber outlet (43) is connected to the outlet tank (1).
3) A connection port (4) of the outlet pipe (23) formed across the tank chamber (31) and the steam separation chamber (33).
A cross flow type radiator according to 1).