KR20010095767A - Jiggle valve of thermostat - Google Patents

Abstract

PURPOSE: A jiggle valve for a vehicle thermostat is provided to automatically operate the jiggle valve by the buoyancy of cooling water and pressure in a cooling water channel for effectively removing air generated in the cooling water channel and effectively control the cooling water flowing to a radiator in case of engine warmup. CONSTITUTION: A jiggle valve for a vehicle thermostat includes an eccentric connection rod(23) to be inserted into an insertion hole(16) formed at a lower part of an outflow hole(15) formed for passing air and cooling water at an upper part of a valve element(13) of a thermostat, and first and second floats(21,22) formed at both ends of the eccentric connection rod for supporting the eccentric connection rod eccentrically, so that the floats rotate upwardly when the cooling water is introduced via a cooling water channel for automatically closing the outflow hole, wherein the eccentric connection rod is a length larger than a thickness of the valve element, and the first and second floats are formed hemispherically, respectively having a plane surface(21b,22b) contacting the outflow hole.

Description

Jiggle valve of thermostat}

The present invention relates to a jiggle valve which is formed on a part of the body of the thermostat for supplying the coolant of the automobile engine to the radiator to remove the air contained in the coolant passage or to control the coolant when the engine is warmed up.

In general, a vehicle is equipped with a water-cooled cooling device that is a device for cooling the engine to prevent overheating and to maintain the coolant at an appropriate temperature.

The water-cooled cooling device draws heat radiated by the engine heat into the radiator to radiate heat, and the radiated coolant is sent back to the water jacket of the cylinder block and the cylinder head by the water pump to cool the engine.

In this process, the cooling water sent to the radiator passes through the thermostat. The thermostat is installed in the cooling water path 30 of the radiator as a valve that operates automatically according to the water temperature.

And the valve body 13 formed integrally with the thermostat 10 is provided with a jiggle valve (2) which serves to remove the air contained in the cooling water passage 30, or to prevent the engine warm-up time is prolonged have.

First, the thermostat 10 is provided with a pellet 12 provided with a main body 11 and a spindle 12a, a valve body 13 surrounding the upper portion of the pellet 12, and a lower portion of the valve body 13. It consists of the spring 14 which becomes.

And the outflow hole 15 formed in the valve body 13 of the main body 11 is provided with a jiggle valve (2), the jiggle valve 2 is composed of a cap portion (2a) and the engaging portion (2b) radiator When the inlet is closed, the air remaining in the cooling water flows out, and the cooling water flowing to the radiator is interrupted.

However, the jiggle valve 2 of the above-described configuration is operated only by the pressure difference formed on both sides of the thermostat 10 valve body 13, and when the pressure drops, the outlet hole 15 is opened by the weight of the jiggle valve 2. It is pointed out that the cooling water is not effective because it is open and closed when the pressure rises.

The present invention has been proposed to solve the above-mentioned problems occurring in the prior art, and has been invented for the purpose of providing a jiggle valve of a thermostat operated by pressure and buoyancy in the cooling water passage.

The present invention as a means for achieving the above object, in the formation of the outlet hole so that air and cooling water can pass through the valve body formed on the body of the thermostat,

A separate insertion hole is formed in the lower portion of the outlet hole, and an eccentric connecting rod is inserted into the insertion hole, and both ends of the eccentric connecting rod are respectively formed with first and second buckle, respectively. Eccentrically axially accumulate in the buoys of each feature is characterized in that each buoy is rotated upward when the coolant flows into the cooling water path to automatically block the outflow hole,

In addition, the length of the eccentric connecting rod is formed to be a certain length longer than the thickness of the valve body, the first and second spheres are hemispherical, characterized in that the surface in contact with the outlet hole is flat.

1 is a view showing the installation state of the thermostat and the jiggle valve.

2 is a mounting state of the jiggle valve according to the present invention.

Figure 3 is an operating state of the jiggle valve is moved up.

Figure 4 is an operating state of the jiggle valve blocked the outflow hole.

Figure 5 is a view showing the installation state of the conventional thermostat and the jiggle valve.

Figure 6 is a diagram representing the operating state of the conventional jiggle valve.

※ Explanation of code for main part of drawing

10: thermostat

13: valve body

15: outflow hole

16: insertion hole

20: Jiggle Valve

21: First Division

22: second division

23: eccentric connector

30: with cooling water

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

1 is a view showing the installation state of the thermostat 10, Figures 2 to 4 is an operating state diagram of the jiggle valve according to the present invention.

The thermostat 10, which is installed in the cooling water passage 30 of the cooling water inlet of the engine radiator and is automatically opened and closed according to the temperature of the cooling water, has a main body 11, a valve body 13, a pellet 12, and a spring 14. Is configured as in the prior art, the outlet hole 15 is provided with a sizzling valve is mounted on the upper portion of the valve body 13, a separate insertion hole 16 is formed in the lower portion of the outlet hole (15) Is formed.

As the insertion hole 16 formed below the outlet hole 15, an eccentric connector 23 which eccentrically connects the first accessory 21 and the second accessory 22 is inserted, and the length of the eccentric connector 23 is axially inserted. Is formed longer than the length of the outlet hole (15). That is, the first fitting 21 is located inside the valve body 13, the second fitting 22 is located outside the valve body 13, each of the fittings are connected by the eccentric connector 23 Accordingly, the outlet hole 15 is configured to be interrupted.

The first part 21 and the second part 22 are configured to be symmetrical with each other, and are formed of a plastic-based material that is lighter than the specific gravity of the cooling water. In addition, the shape of the sub-balls 21 and 22 is preferably the outer surface 21a, 22a is hemispherical, the inner surface (21b, 22b) facing each other and in contact with the valve body 13 in a plane.

Referring to the operation of the thermostat jiggle valve configured as described above with the drawings as follows.

First, when the start is turned off and there is air to be released, and the amount of cooling water does not reach the sizzling valve 20, the sizzling valve 20 has a first part 21 and a second part as shown in FIG. The outflow hole 15 is opened by rotating the eccentric connector 23 as the rotation axis by the weight of the 22. Therefore, the air entering the cooling water path 30 at the time of filling the cooling water is discharged to the open outlet 15.

Second, when the start is off and there is no air to escape, when the sizzling valve 20 is immersed in the coolant, the sizzling valve 20 is eccentric connector 23 by the buoyancy of each of the fittings 21 and 22, as shown in FIG. Will rotate upward to the rotation axis. However, each buoy (21, 22) is moved upward by the buoyancy, because the length of the eccentric connector 23 is formed longer than the length of the outlet hole 15, the outlet hole 15 and each of the floats (21, 22) ) And spaced apart space 24 is generated so that both sides of the thermostat 10 are in communication with each other.

Third, when the engine is operated and there is no air to escape, the sizzling valve 20 is pushed by the sizzling valve 20 as shown in FIG. 4 due to the buoyancy and the pressure difference between the two sides of the thermostat 10. Side 21b blocks the outflow hole 15 to block the flow of cooling water.

According to the invention as described above, since the jiggle valve is operated by the pressure in the cooling water passage and the buoyancy of the cooling water, the air generated in the cooling water passage can be drawn out more effectively, and the interruption of the cooling water flowing to the radiator can be effectively performed even when the engine warms up. Therefore, there is a great effect of reducing the engine warm-up time.

Claims (3)

In forming the outlet hole 15 to allow air and cooling water to pass through the valve body 13 formed in the body of the thermostat 10, A separate insertion hole 16 is formed in the lower portion of the outlet hole 15, and an eccentric connecting rod 23 is inserted into the insertion hole 16, and both ends of the eccentric connecting rod 23 are respectively formed. Forming one sub-ball 21 and the second sub-ball 22, each of the sub-ball 21, 22 when the cooling water flows into the cooling water path 30 by eccentrically connecting the eccentric connecting rod 23 to each sub-ball Jiggle valve for the thermostat of the vehicle, characterized in that to rotate up to automatically shut off the outlet hole (15). The method of claim 1, The zigzag valve for a thermostat of a vehicle, characterized in that the length of the eccentric connecting rod (23) is formed longer than a thickness of the valve body (13). The method of claim 1, The first sub-sphere (21) and the second sub-sphere 22 is hemispherical so that the surface contacting the outlet hole 15 is a jiggle valve for a thermostat of a vehicle, characterized in that the flat.