JPS6124659Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bubble separating device for a radiator used in an engine.

Air bubbles contained in the engine cooling water are one of the causes of pitting on the outer peripheral surface of the cylinder liner, and are also a cause of a decrease in the heat exchange efficiency of the radiator. Therefore, in an engine equipped with a radiator, the key point is how to eliminate air bubbles contained in the cooling water within the radiator within a short period of time.

The present invention was developed with the above in mind, and is a radiator air bubble separator that can completely separate air bubbles contained in cooling water within a short period of time, for example, within 20 minutes after starting the engine. This is what we are trying to provide.

A typical conventional radiator bubble separator is shown in FIG. 1 or 2. In the figure, a is the hot tank, b and b' are the full plates that partition the hot tank a into an upper chamber c and a lower chamber d, and the lower chamber 4d has a radiator inlet e,
e′ is also in the upper chamber c, cooling water f, vent line g,
The make-up line h is open. The upper chamber c and the lower chamber d are communicated with each other through air vent pipes i and i' which are protruded from the respective baffle plates b and b'.

In this configuration, during water supply, the cooling water injected from the water inlet f is sequentially replenished from the make-up line h to the lower part of the engine j and the radiator k, and the water inlet f is filled with water.

Also, during operation, the flow of cooling water is from the bottom of the radiator k and the make-up line h to the water pump m.
This cooling water passes through the cooling system of each part and enters the atsupa tank a from the radiator inlets e and e'.
Enter the lower room d. In this case, the air also flows into the upper chamber 3c from the vent line g. Cooling water mixed with air bubbles flowing in from the radiator inlets e and e' fills the lower chamber d and flows directly into the radiator core, but a portion of it enters the upper chamber c through the air vent pipes i and i'. The cooling water mixed with air bubbles flowing into the upper chamber c from the vent line g and the air vent pipes i and i' is separated from the air bubbles, and is sucked through the make-up line h. While these steps are repeated in sequence, air bubbles are separated from the cooling water.

However, in the conventional bubble separator described above, in the upper part of the lower chamber d where the radiator inlets e and e' open,
In order to facilitate the separation of air bubbles, an air pocket is provided in a shape that bulges upwards, and air vent pipes i and i' are provided at the top of the air pocket, but since the speed of inflow is fast, the air pocket in the lower chamber d There was a problem that the air bubbles were hardly separated in the upper chamber c, and the air bubbles were not completely separated unless the capacity of the upper chamber c was increased to increase the amount of air bubbles separated.

The present invention improves the above-mentioned conventional problems and makes it possible to efficiently and completely separate bubbles within a short period of time.

The configuration will be explained below based on the embodiment shown in FIG. 4 and below.

In the figure, 1 is a hot tank, and 2 is a full plate that partitions the hot tank 1 into an upper chamber 3 and a lower chamber 4. One side of the lower chamber 4 partitioned by the full plate 2 is elevated in a trapezoidal shape to form an air reservoir 4a, and a cylinder 5 is provided in the air reservoir 4a with the upper part open. A radiator inlet 6 is opened at the bottom of the cylinder 5 in a tangential direction to the inner peripheral surface of the cylinder 5. Further, a spiral guide plate 7 is installed inside the cylinder 5. Opposed to the center of the open upper part of the cylinder 5, an air vent pipe 8 is provided in the buff-full plate 2 to communicate the upper chamber 3 and the lower chamber 4. Also, 9 is a make-up line, 10 is a water inlet, 11 is a vent line, 1
2 is a baffle plate provided in the upper chamber 3.

In the above configuration, during operation, the radiator inlet 6
The cooling water mixed with air bubbles that has flowed in further rises while making a spiral movement inside the cylinder 5. At this time, the cooling water rises along the inner peripheral surface of the cylinder due to centrifugal force, but air bubbles with low specific gravity gather at the center line of the cylinder 5, and the air bubbles rise while being separated from the cooling water. Cooling water that does not contain air bubbles rises along the inner peripheral surface of the cylinder 5, enters the lower chamber 4 from the upper end of the cylinder 5, and directly flows into the radiator core from there. The cooling water containing many bubbles near the center reaches the air reservoir 4a together with the cooling water around it, and from there enters the upper chamber 3 through the air vent pipe 8. Cooling water mixed with air bubbles also flows into the upper chamber 3 from the vent line 11. The cooling water mixed with air bubbles flowing into the upper chamber 3 flows in the direction of the make-up line 9, but at this time, the smooth flow is prevented by the baffle plate 12, and the separation of air bubbles is promoted during this time. .

7 shows another embodiment in which the spiral guide plate 7 inside the cylinder 5 is omitted. In this case as well, the radiator inlet 6 flows in a tangential direction relative to the inner circumferential surface of the cylinder 5, causing a spiral motion.

The present invention is as described above, and the hot tank 1 is separated into the upper chamber 3 and the lower chamber 4 by the buffer plate 2, the make-up line 9, the opening 10, and the vent line 11 are opened in the upper chamber 3, and In a radiator bubble separator in which a part of the lower chamber 4 is raised to provide an air reservoir 4a, the air reservoir 4a of the lower chamber 4 is provided with:
A cylinder 5 is installed in the upper part, and a radiator inlet 6 is opened in the lower part of the cylinder 5 in a tangential direction to the inner circumferential surface of the cylinder 5, and the above-mentioned Full plate 2 with upper chamber 3 and lower chamber 4
An air bleed pipe 8 is provided in the upper chamber 3, and a baffle plate 1 is provided in the upper chamber 3 to prevent the smooth flow of the make-up line 9 from the air bleed pipe 8.
2 is provided to constitute a radiator bubble separator, the cooling water flowing in from the radiator inlet 6 is spirally moved within the cylinder 5, and bubbles are separated.
Cooling water mixed with many air bubbles flows into the upper chamber 3,
Air bubbles can be well separated even in the air pocket 4a of the lower chamber 4, and the air bubbles can be efficiently and almost completely separated from the cooling water in a short time. In particular, by providing the baffle plate 12 in the upper chamber 3 that prevents a smooth flow from the air vent pipe 8 to the make-up line 9, the upper chamber 3
The one with air bubbles flowing into it is make-up line 9
During this period, the flow becomes turbulent and bubble separation is performed well.

[Brief explanation of the drawing]

1 and 2 are schematic configuration explanatory diagrams showing a conventional example, FIG. 3 is an explanatory diagram for explaining the flow of cooling water, and FIG. 4 and the following diagrams show examples of the present invention. 4 is a plan view, FIG. 5 is a sectional view, FIG. 6 is a perspective view showing a spiral guide plate, and FIG. 7 is a sectional view showing another embodiment. 1 is Atsupata Tank, 2 is Batsuful Plate, 3
is an upper chamber, 4 is a lower chamber, 4a is an air reservoir, 5 is a cylinder, 6 is a radiator inlet, 8 is an air vent pipe,
9 is the make-up line, 10 is the water inlet, and 11 is the vent line.

Claims (1)

[Scope of utility model registration request] The hot tank 1 is separated into an upper chamber 3 and a lower chamber 4 by a full plate 2, a make-up line 9, a water supply port 10, and a vent line 11 are opened in the upper chamber 3, and a part of the lower chamber 4 is raised. and air reservoir 4a
In a radiator bubble separator equipped with
A radiator inlet 6 is opened in the lower part of the cylinder 5 in a tangential direction to the inner circumferential surface of the cylinder 5, and a radiator inlet 6 is opened at the bottom of the cylinder 5 in a tangential direction to the upper part of the cylinder 5 in the open direction. An air bleed pipe 8 is provided to communicate the upper chamber 3 and the lower chamber 4, and a baffle plate 12 is provided between the open position of the air bleed pipe 8 in the upper chamber 3 and the opening of the make-up line 9. A radiator bubble separator characterized by: