KR20040045244A - Filter-cover of solenoid valve for L.P.G vehicle - Google Patents

Abstract

PURPOSE: A filter cover of a solenoid valve for an LPG(Liquefied Petroleum Gas) vehicle is provided to cut down manufacturing cost by integrally forming the filter cover through injection-molding plastic and increasing the gap of the guide in the outer periphery, and to replace the filter timely by checking pollution level with the unaided eye. CONSTITUTION: A filter cover(10) is formed by integrally forming a filter guide part(10a) with an outer wall, and manufactured by injection-molding plastic. The filter guide part supports the upper part and the lower part of a filter(11), and the outer wall surrounds the circumference. The outer wall of the filter cover is exposed with the latticed structure of 5*7 mm to look in the wall. The filter guide part and a filter installation part(10b) are integrally formed in inserting the filter in injection molding. The upper part of the filter is surrounded by the filter guide part, and the lower part of the filter is finished by the filter installation part.

Description

Filter-cover of solenoid valve for L.P.G vehicle}

The present invention relates to a filter cover of a solenoid valve for an LPI vehicle, and more particularly, to exclude the existing steel structure guide, instead of integrating with a plastic injection molding, while increasing the distance between the guide, cost reduction and weight reduction In addition, the present invention relates to a filter cover of an LPI vehicle solenoid valve which enables not only the planning but also the replacement time of the filter to the naked eye.

In general, almost all cars use gasoline as fuel, but L.P.G (L.P.G), which is cheaper than gasoline, is used as fuel for small trucks, commercial taxis, RV cars, and SUVs.

The L.P.G refers to a liquefied petroleum gas, and is a gas that is easily vaporized by heating or decompression by liquefying by recovering a gas produced when a petroleum product is made by refining natural gas or petroleum emitted from an oil field.

The LFG fuel device of a car powered by LFG fuel is composed of LFG fuel tank, LF filter, LF solenoid valve, preheater, vaporizer, etc. Impurities such as this are filtered, depressurized and vaporized in a vaporizer through a preheater through an ellipse solenoid valve, and then mixed with air in a vaporizer and introduced into an engine cylinder.

As shown in FIG. 1, the Elpji solenoid valve which can be operated in the driver's seat during the construction of such an Elpgi fuel system is provided with a gas / liquid solenoid valve 100 that is responsible for supplying and shutting off gas / liquid Elpgi fuel in the fuel tank. As a pair, each valve consists of a solenoid portion 110, a filter portion 120, and a gas / liquid elbow inlet 130, and is composed of one elbow outlet 140 in communication with each valve.

Here, as shown in FIG. 4, the filter unit 120 has a structure in which a filter 122 capable of filtering the impurities contained in the LPI in the filter cover 121 is embedded.

The filter cover 121 may include a first filter guide 121a and a second filter guide 121b that close the upper end of the filter 122, and a third filter guide 121c that closes the lower end of the filter 122. It consists of a fourth filter guide 121d of the network structure surrounding the outer circumference.

However, since the filter cover 121 is made of a cold rolled steel sheet (SPCC) wire mesh type, there is a problem that corrosion occurs easily during long-term use, and the network structure of the fourth filter guide 121d is too tight. Since it is difficult to check the degree of contamination from the outside, it is difficult to determine the appropriate replacement time.

In addition, the existing filter cover 121 is made of a metal material, there are a number of components there are disadvantages in terms of weight or work maneuver, there is a problem that takes a lot of manufacturing costs.

Therefore, the present invention has been made to solve the above problems, while integrating the filter cover with a plastic injection molding, while increasing the distance of the guide on the outer circumferential surface, it is possible to reduce the cost and light weight, as well as long-term use The purpose of the present invention is to provide a filter cover of a solenoid valve for an LPI vehicle that can solve the corrosion problem and can visually check the degree of contamination inside from the outside so that the filter can be replaced at an appropriate time.

1 is a side cross-sectional view showing a typical LLP vehicle solenoid valve,

2 is a cross-sectional view taken along the line 'A-A' of FIG.

Figure 3 is a side cross-sectional view showing a filter cover of the solenoid valve for the LPI vehicle according to the present invention,

Figure 4 is a side cross-sectional view showing a conventional solenoid valve for an LPI vehicle.

<Explanation of symbols for the main parts of the drawings>

10 filter cover 10a filter guide portion

10b: filter mounting portion 10b-1: guide

11: filter

Hereinafter, the features of the present invention for achieving the above object are as follows.

The present invention provides a filter cover of an LPI vehicle solenoid valve including a filter,

The filter cover 10 is characterized in that the plastic guide formed by the filter guide portion (10a) for supporting the top and bottom of the filter 11, and the outer wall surrounding the periphery integrally.

In particular, the outer wall of the filter cover 10 is characterized in that it has a lattice type exposed structure that can see the inside.

In addition, the grid-type exposure structure of the outer wall is characterized in that the horizontal and vertical spacing is 5 × 7mm respectively.

Hereinafter, the configuration of the present invention with reference to the accompanying drawings in detail.

Figure 1 is a side cross-sectional view showing a typical elliptical vehicle solenoid valve, Figure 2 is a cross-sectional view taken along the line 'A-A' of Figure 1, Figure 3 is a side cross-sectional view showing a filter cover of the solenoid valve for the elliptical vehicle according to the present invention.

As shown in FIG. 1, the LPI solenoid valve is composed of a pair of gas / liquid solenoid valves 100 that are responsible for supplying and shutting off gas / liquid LLP fuel in a fuel tank, and each valve includes a solenoid portion 110, It consists of the filter part 120 and the gas / liquid LLP inlet 130, and consists of one LLP outlet 140 in communication with each valve.

Here, as shown in FIG. 4, the filter unit 120 includes a filter 11 capable of filtering impurities in the LPI inside the filter cover 10.

The filter cover 10 is made of a plastic injection molding consisting of a single unit, rather than a number of parts assembled as before, the structure is the circumference of the filter guide portion 10a and the filter 11 is mounted on the top Can be divided into the filter mounting portion (10b).

The filter guide part 10a and the filter mounting part 10b may be integrally molded in a state in which the filter 11 is inserted during injection molding.

The filter guide portion 10a formed as described above is shaped to surround an upper end portion of the filter 11, and the filter mounting portion 10b is formed to wrap up to the lower end portion thereof while surrounding the circumferential portion of the filter.

In particular, in the case of the filter mounting portion 10b, since the plurality of guides (10b-1) are formed in a lattice shape to have an exposed structure to sufficiently check the inside, the filter 11 is compared with the conventional wire mesh type. It is possible to more easily check the contamination state of.

The filter mounting portion 10b has the same shape so that the cylindrical filter 11 can be mounted. The outer wall of the filter mounting portion 10b has a grid-like shape in which the guide 10b-1 is integrally formed, and the filter ( 11) The horizontal and vertical intervals are 5 × 7mm, respectively, so that the replacement timing of 11) can be visually judged from the outside.

In addition, the color of the filter cover 10 is preferably a variety of colors in the user's product selection, it is preferable to widen the range of selection to improve the merchandise.

As described above, the filter cover of the LPI vehicle solenoid valve according to the present invention is integrated with a plastic injection molding, while increasing the guide interval of the outer peripheral surface, it is possible to reduce the cost and light weight, as well as to replace the filter from the outside It can be judged by the naked eye.

Claims (3)

In the filter cover of the LPI vehicle solenoid valve including a filter, The filter cover 10 is the filter cover of the solenoid valve for the LPI vehicle solenoid valve, characterized in that the plastic guide made of a filter guide portion (10a) for supporting the top and bottom of the filter (11), the outer wall surrounding the perimeter. The filter cover of the solenoid valve for an LPI vehicle according to claim 1, wherein the outer wall of the filter cover (10) has a lattice-exposed structure for viewing the inside thereof. The filter cover of the solenoid valve for an LPI vehicle according to claim 2, wherein the grid-shaped exposed structure of the outer wall has a horizontal and vertical spacing of 5 x 7 mm, respectively.