KR0119659B1 - Automatic apparatus exhausting impurity of vaporizer - Google Patents

Abstract

The impurity automatic discharging device of a vaporizer is connected to an intake manifold and includes a drain chamber and a vacuum chamber. In the drain chamber(50), is provided an impurity storing groove(52), and the top end of the drain chamber(50) is provide with a housing where a diaphragm mounting groove(60) is formed to be connected to a hole(58) of the vacuum chamber. On the diaphragm mounting groove(60) is mounted a drain diaphragm(62), and a drain pintle(64) is coupled with an appropriate portion of the drain diaphragm(62) on the upper portion thereof and is closely contacted with the drain chamber(50) on the lower portion thereof.

Description

Impurity automatic discharge device of vaporizer

1 is a cross-sectional view showing the configuration of a conventional vaporizer.

2 is a cross-sectional view showing the configuration of the automatic device for discharging impurities in the vaporizer according to the present invention.

3 and 4 are enlarged cross-sectional views showing the impurity automatic discharge device of the vaporizer according to the present invention, showing the up and down movement of the drain pintle.

* Explanation of symbols for main parts of the drawings

50: drain seal 52: impurity storage groove

58: hole 60: diaphragm mounting groove

62: drain diaphragm 64: drain pintle

66: Boss 68: Impurities

70 impurity barrier 72 LPG barrier

76: elastic member

The present invention relates to an apparatus for automatically discharging impurities in a vaporizer, and more particularly, to an apparatus in which impurities mixed in LPG inside a vaporizer are automatically discharged to the outside.

In general, a vaporizer (Vaporizer) is a part of the carburettor in the case of a gasoline engine, and the most important functional parts of the LPG device are three kinds of functions such as decompression, vaporization, and pressure regulation.

FIG. 1 shows a configuration of a conventional vaporizer 18, and includes a lock off chamber 16 in which primary and secondary diaphragms 10a and 10b and valves 14a and 14b are combined. With the solenoid switch in operation, the solenoid valve (not shown) opens and the liquid LPG is forced to vapor pressure in the LPG fuel tank (not shown), and the primary valve 14a at the fuel inlet of the vaporizer 18 Push in to open the first pressure reducing chamber (Primary Chamber, 20a) where the pressure is reduced to become a gas.

When the pressure in the first pressure reducing chamber 20a becomes higher than the designated pressure (about 0.3 to 0.4 kg / cm 2) due to the expansion of the vaporized gas, the primary diaphragm 10a pushes and moves the spring to move the diaphragm lever. Pull out 24a to close primary valve 14a and stop the inflow of LPG. In this way, the pressure in the first pressure reducing chamber 20a is always kept constant.

When the engine is rotated by the starting motor, the negative pressure of the intake manifold (not shown) acts on the lock-off chamber (16), so that the lock-off diaphragm compresses and moves the spring so that the second pressure reducing chamber (Secomdary Chamber, 20b) the inside is in a negative pressure state, the second pressure reducing diaphragm 10b is moved to push the second valve 24b to open the secondary valve 14b, LPG of the first pressure reducing chamber 20a The gas flows into the second pressure reducing chamber 20b and completely vaporizes, and the engine is started since the pressure is reduced to almost atmospheric pressure by the action of the secondary diaphragm 10b and sucked into a vaporizer (not shown).

In the above, a recessed drain seal 28 is provided before the LPG goes to the vaporizer. When impurities 30 such as tar in the LPG gradually accumulate in the drain seal 28 due to its own weight, the drain seal 28 The drain cock 32 in the lower part is manually opened to periodically discharge the impurities 30 to the outside.

However, in the process of discharging the impurities 30 of the drain chamber 28 by opening the drain cock 32, various dusts and the like stick to each other, making it difficult to operate the drain cock 32 and periodically drain the cock. When the 32 is not opened and the impurities 30 are not discharged, a large amount of impurities accumulate in the drain chamber 28.

Therefore, when the accumulated impurities 30 flow into the vaporizer, there is a problem in that a failure of the fuel system control component and a defect of the engine component occur.

The present invention was made in view of the above problems, and an object of the present invention is to move the drain pintle up and down by the negative pressure of the intake manifold so that the internal impurities of the drain seal are automatically discharged to the outside of the drain seal. have.

In order to achieve the above object, an impurity storage groove is formed in the drain chamber, and a housing having a simultaneous diaphragm mounting groove through which a hole communicating with the intake manifold is formed is formed at the upper end of the drain chamber, and the diaphragm mounting of the housing is formed. In the groove, a drain pintle is installed at a lower side of the drain diaphragm so that an upper portion thereof is coupled to an intermediate portion of the drain diaphragm and a lower portion thereof penetrates the drain seal. The impurity blocking film is formed, the intermediate portion LPG blocking film is formed to block the upper end of the drain seal, the intermediate portion of the vaporizer automatic discharge device of the vaporizer, characterized in that the LPG blocking film is formed to block the upper end of the drain seal to provide.

Hereinafter, the present invention will be described with reference to the accompanying drawings. FIG. 2 is a cross-sectional view showing the structure of the automatic discharging device of the vaporizer according to the present invention, and FIGS. 3 and 4 are enlarged cross-sectional views showing the impurity automatic discharging device of the vaporizer according to the present invention. This figure shows the movement state. The same components as in the prior art are denoted by the same reference numerals to describe the present invention.

First, as shown in FIG. 2, in the structure of the automatic discharging device of the vaporizer according to the present invention, the impurity storage groove 52 is formed in the drain chamber 50, and the upper end of the chamber 50 is A hole 56 is formed through which a hole 58 communicating with an intake manifold (not shown) is formed, and at the same time, a housing 56 having a diaphragm mounting groove 60 is formed. The diaphragm mounting groove 60 of the housing 56 is equipped with a drain diaphragm 62, and an elastic member 76 is provided on the upper side of the drain diaphragm 62 to provide elastic force downward thereto. The elastic member 76 may be composed of a coil spring.

A drain pintle 64 is positioned below the drain diaphragm 62, the upper portion of which is coupled to the middle portion of the drain diaphragm 62 and the lower portion of the drain pintle 64. Installed through.

In more detail, an impurity blocking film 70 is formed at the lowermost end of the drain pintle 64 to block the lower end of the drain seal 50 from the outside, and an LPG blocking film is formed at the middle part to block the upper end of the drain seal 50. 72 is formed and comprised. That is, the shape of the drain pintle 64 has an I-shape.

As shown in FIG. 3, the present invention configured as described above may generate negative pressure of the intake manifold through the holes 58 of the housing 56 when the engine is operated, so that both ends of the drain diaphragm 62 may be disposed in the housing 56. While concave in the diaphragm mounting groove 60 of the convex to the upper and the drain pintle 64 also overcomes the elastic force of the elastic member 76 and is moved to the top likewise.

At this time, the impurity blocking film 70 at the end of the drain pintle 64 blocks the lower portion of the impurity storage groove 52 from the outside, and the LPG blocking film 72 of the drain pintle 64 is formed of the impurity storage groove 52. It is separated from the top by a certain distance. Therefore, in the process in which the fuel in the second pressure reducing chamber 20b flows out to the vaporizer (not shown) in the direction of the arrow A, impurities such as tar 68 are formed in the boss 66 by the load of itself. 50 is gradually accumulated in the impurity storage groove (52).

In the above, it is preferable that the space of the impurity storage groove 52 be made wide enough to store the impurities 68 sufficiently until the engine is stopped.

On the other hand, when the engine is stopped as shown in FIG. 4 and the negative pressure of the intake manifold is lost, the drain diaphragm 62 is pushed downward by the elastic restoring force of the elastic member 76. At the same time, the drain diaphragm 62 pushes the drain pintle 64 downward.

Accordingly, the LPG blocking film 72 of the drain pintle 64 blocks the upper part of the impurity storage groove 52 of the drain seal 50 while the impurity blocking film 70 is lower than the impurity storage groove 52 of the boss 66. By opening the dopant 68 accumulated in the impurity storage groove 52 is automatically discharged to the outside.

Therefore, the impurities 68 are automatically discharged automatically by using the negative pressure of the intake manifold when the engine is running and stopped.

As described above, according to the present invention, the impurity automatic discharge device of the vaporizer, the drain pintle 64 is moved up and down by the negative pressure of the intake manifold so that the internal impurities 68 of the drain chamber 50 are discharged from the drain chamber 50. By being automatically discharged to the outside, the user can eliminate the inconvenience caused by manual work, as well as solve the engine control system and engine defects.

Claims (1)

An impurity storage groove 52 is formed in the drain chamber 50, and a housing 56 having a diaphragm mounting groove 60 formed therein, while a hole 58 communicating with the intake manifold passes through the upper end of the drain chamber 50. ) Is formed, a drain diaphragm 62 is mounted in the diaphragm mounting groove 60 of the housing 56, and an elastic member 76 is provided on the upper side of the drain diaphragm 62 to provide elastic force thereto. The drain pintle 64 is installed below the drain diaphragm 62 so that an upper portion thereof is coupled to an intermediate portion of the drain diaphragm 62 and a lower portion thereof passes through the drain seal 50. An impurity blocking film 70 is formed at the bottom of the drain seal 50 to block the lower end of the drain seal 50 from the outside, and an LPG blocking film 72 is formed at the middle part to block the upper end of the drain seal 50. Impurity automatic discharge device of vaporizer.