KR100923866B1 - A car fuel injection acid pollution fuel lubrication prevention filter ring control way - Google Patents

Abstract

PURPOSE: A vehicle refueling system is provided to recognize the inflow path of foreign substances accurately and easily and to improve fuel combustion of a vehicle engine and accuracy in maintenance. CONSTITUTION: A vehicle refueling system is as follows. A fuel filter is provided between the end of a fuel supply line and a fuel tank(10). A connector in which one end of the fuel filter is joined is formed on the end of the fuel supply line. The fuel filter is composed of a case with one open end and inner cavity, an element which is accommodated in the inner cavity of the case and equipped with first and second covers, and a cap which includes a body connected to the case and a cap protrusion connected to the connecter of the fuel supply line.

Description

A car fuel injection system for easy identification of foreign substance entry paths {A car fuel injection acid pollution fuel lubrication prevention filter ring control way}

The present invention relates to an automobile fuel oil supply system that is easy to grasp the foreign substance inflow path, and more particularly, a plurality of fuel filters are formed in each fuel supply line between the fuel injection port and the cylinder and the cylinder and the engine, Identify the cause of instability in the combustion of automobile engines by accurately and quickly identify the inflow path of impurities or foreign substances and the resulting defects of automobile parts, and identify the inflow path of foreign substances that enhance product competitiveness by improving the clarity of automobile maintenance. This easy car fuel refueling system.

In general, automotive engines are classified into gasoline engines and diesel engines according to the characteristics of fuels. LPG is also gradually being used in recent years according to the characteristics of fuels having high vaporization points. Recently, a method of injecting a liquid high pressure fuel directly into an engine through an injector has been used.

Looking at the combustion method and fuel input of the engine, the gasoline engine mixes fuel and air and puts it inside the engine, and when the piston is compressed, the spark plugs splatter sparks so that the fuel is combusted. The fuel is spontaneously ignited by putting it inside and by squeezing the piston and pumping the fuel inside the engine under high pressure.

However, in recent years, engines that are directly injected into some vehicles are gasoline engines, but engines such as diesel engines have been developed to provide efficiency by pumping air after inserting air into the engine.

In addition, the engines using LPG as a fuel adopt the same method as described above. Unlike the existing LPG system which pushes fuel only by the vapor pressure of the fuel, a fuel pump is installed in the cylinder to provide liquid LPG fuel. After injection, a method of spraying through the injector in the engine has been applied.

In other words, the LPI (Liquefied Petroleum Injection) system adopts a method of directly injecting LPG, which is fuel, into a combustion chamber through an injector in a liquid state, such as a gasoline vehicle, and does not use a vaporizer as in the conventional LPG system. Power performance is improved by supplying LPG to the combustion chamber under the control of the ECU through the injector.

The Intake Manifold Module (Intake Manifold Module) consists of an LPG injector and a high pressure fuel line.The injector is a boottom feed method, which supplies fuel to each cylinder through a needle sheet inside the injector through a filter on the fuel inlet side. The injector is configured to apply an icing tip during LPG fuel injection to freeze ambient moisture due to latent heat of vaporization during fuel injection to remove the effect on engine performance and exhaust gas.

Since the LPI system does not use a delivery pipe, a fuel line is connected between the injectors to distribute the fuel to each injector, and the remaining fuel may be sent to the bomb.

Meanwhile, the fuel system of the LPI vehicle is disclosed in Korean Patent Publication No. 10-0689081, and the liquid LPG fuel is contained inside the cylinder 10 in which LPG fuel is basically stored as shown in FIG. 1. A fuel pump 11 for pumping the fuel pump 11 is mounted, and the fuel pump 11 has a separate fuel filter 16a for filtration of foreign matter, but clogging due to impurities or foreign matter contained in the fuel may occur. In this case, the fuel filter needs to be checked or replaced. However, since the fuel filter 11 is a built-in fuel filter mounted inside the fuel pump 11, the operation was not easy.

Therefore, an independent fuel filter 16b is installed in the fuel supply line 12 connected from the cylinder 10 to the engine so as to freely inspect or replace the filter so as to filter out impurities or foreign substances contained in the fuel and inject the injector 13. It was composed of a system that is injected into the combustion chamber 14 of the engine and the surplus fuel is returned to the cylinder 10 through the fuel return line 15.

Meanwhile, a cylinder for storing fuel is generally manufactured by welding cylindrical carbon steel plates of 3.2 mm or more in pressure, having a tensile strength of 41 kg / cm 2 or more, a 31 kg / cm 2 pressure test and an airtight test of 18.6 kg / cm 2 and lot. It satisfies the star breaking test, and the inspection of the inside of the foreign material is inspected and managed through the magnifying microscope.

However, as described above, the fuel filter may be independently configured in the fuel line to filter out impurities or foreign substances contained in the fuel, thereby ensuring improved stability in combustion of the engine. However, impurities or foreign substances which have a serious adverse effect on the combustion of the engine may be substantially reduced. It is opaque and untested to find out whether they are coming from or contained in the fuel from the beginning, or whether foreign matter remains in the fuel that is being made in the production of a cylinder for an automobile part. The lack of information on which parts were causing the problem, such as which parts to be checked and managed or where to be responsible for external or internal factors, etc. Smoothly Unless there was a problem.

In order to solve the problems as described above, an object of the present invention is to provide a fuel oiling system for controlling by mounting a fuel filter for filtering impurities or foreign matter contained in the fuel for stable combustion of the engine. In the existing configuration, the fuel filter is installed in the fuel supply line to transfer the fuel from the cylinder of the vehicle to the engine; In addition, a separate fuel filter is formed in the fuel supply line between the injection hole for injecting fuel into the vehicle and the bomber where the fuel is stored. Identify the cause of instability in combustion of the engine of the automobile by distinguishing the defects from the parts of the vehicle and the parts of the car accurately and quickly. It is to provide an automobile fuel refueling system.

In order to achieve the above object, the vehicle fuel oil supply system of which the foreign material inflow path of the present invention can be easily grasped is connected to the fuel gas supply line connecting the fuel port and the bomb so that fuel is supplied through the fuel port provided in the body of the vehicle. In this configured vehicle fuel refueling system, one side of the refueling fuel supply line to the fuel injection fuel to clearly identify the cause and responsibility of the engine as well as the filtering of foreign matter or impurities contained in the fuel fueled through the filling hole It further comprises a filter.

In the present invention, a fueling fuel filter is provided between the end of the fueling fuel supply line and the bombe, the end of the fueling fuel supply line is configured with a connector for fastening and fixing one end of the fueling fuel filter, the fueling fuel filter The one end is opened and the receiving space is formed inward, the case protrusion is formed to protrude a predetermined length outward from the inner end of the clogging end of the receiving space is formed and the discharge hole for communicating the receiving space and the outside inside the case protrusion is formed; A female screw hole is formed inside the open end and a first fastening member is formed on one side of an outer circumference thereof, and first and second covers which are accommodated in the accommodation space of the case and fixed to both ends of the filter paper and the filter paper are provided. The first cover is provided with a branching protrusion protruding outward to disperse fueled fuel. The second cover protrudes outward so that the cover projection portion into which the discharge hole of the case is fixed and the third discharge hole through which filter fuel is discharged through the filter paper are formed inside the cover protrusion, and fastened to the female screw hole of the case. A body having a second male screw portion formed at one side and a cover protrusion formed at the outer periphery of the third male screw portion to protrude outward from the body to be connected to a connector of the fuel oil supply line is formed through the fuel oil supply line inside the cover protrusion. It is preferable that the inlet hole is formed to enter the fuel is injected into the cap and the cap is formed with a fastening groove and the second fastening member inward to facilitate the insertion of the tool and the like between the body and the cover protrusion.

In the present invention, a fuel oil filter is provided between the end of the fuel injection port and the end of the fuel oil supply line, the fuel oil filter is open at one end and the receiving space is formed in the inner end clogging end of the receiving space A case depression is formed in which a predetermined length is protruded inward and a male screw portion is formed at an outer circumference, and a discharge hole in which a female screw hole is formed so that the receiving space and the outside communicate with each other and the fuel supply line is fastened and fixed at one end is formed inside the case recess. A case having a female screw hole formed at an inner side of the end portion and having a first fastening member formed at one side of an outer circumference thereof, and first and second covers accommodated in the accommodation space of the case and fixed to both ends of the filter paper and the filter paper; The first cover is provided with a branching protrusion protruding outward to disperse fueled fuel. The second cover protrudes inward and an element having a cover recess having a second female threaded hole formed therein to be fastened to the male threaded portion of the case recessed portion of the case, and a body having a second male threaded portion formed at one side thereof to be fastened to the female threaded hole of the case. A cover protrusion formed with a third male thread is formed at the outer circumference so as to protrude outward from the body to be connected to the connector of the fuel oil supply line, and an inlet hole is formed through which the fuel fueled through the fuel fuel supply line enters the cover protrusion. Preferably, the cap is formed of a cap and a second fastening member formed inside the fastening groove to facilitate insertion of a tool or the like between the body and the cover protrusion.

The present invention described above can be inspected and managed by installing each fuel filter in the fuel supply line of the vehicle so that impurities checked in the fuel line before the bomb can be classified as being included in the fuel, and in the fuel line after the bomb The impurities to be detected are classified as defective removal of impurities remaining inside or at the time of manufacture of the bomb or defects due to corrosion, which has the advantage of effective automobile maintenance and cause identification.

Therefore, in case of automobile manufactured and assembled with each part, it is easy to grasp the material of which part by which the maintenance can be done effectively, and even in case of impurities contained in fuel by external factors, not in case of automobile parts It has the advantage and effect to make accountability clear.

In addition, it is possible to improve the stable combustion of the engine by preventing the initial injection of contaminated vehicle fuel.

In addition, as described above, it is possible to clearly check and manage problems and responsible materials in the handling of fuels and the management of automobile parts, thereby more effectively responding to the management of automobile fuel in the future.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a block diagram of a fuel system according to the present invention. Referring to this, a fuel gas supply system for an automobile is provided at a gas station 40 in which a gasoline is installed, and is provided at one side of a body of an automobile and is provided through a gasoline of the gas station 40. An oil supply port 20 receiving fuel, an oil supply fuel supply line 14 connecting the oil supply port 20 and the cylinder 10, and an oil fuel fuel filter provided on any one side of the oil supply fuel supply line 14. And, the fuel oil supply line 14 is provided at one end and the cylinder 10, the engine fuel supply line 12 is configured on the other side, and the engine supplied with fuel through the other end of the engine fuel supply line 12 ( 30, and an engine fuel filter 16b provided on either side of the engine fuel supply line 12.

Therefore, when only one engine fuel filter 16b is configured in the engine fuel supply line 12 connecting the cylinder 10 and the engine 30 as in the related art, foreign matter or impurities may be added to the fuel supplied to the engine. The filtering of the infiltration is weak, and in particular, it is not clear at which part the foreign matter or impurities are penetrated, and thus, the shortening of the lifespan and responsibility of the engine due to this is a problem that a victim of good faith occurs.

In other words, whether it is the quality control error of the cylinder supplier that delivers the cylinder, or if the oil company or the gas station is neglected, or whether the engine is shortened or broken by the engine itself. There was a problem that the reliability of the vehicle fuel oil supply system is lost because no action can be taken.

Accordingly, as the fuel oil filter is further configured on any one side of the fuel oil supply line 14 between the oil hole 20 and the bomb 10 as described above, the fuel oil and the engine fuel filter 16b constituted by a plurality of oils are simply provided. Not only does it have a fuel filtering effect, but it is also responsible for whether it is quality control of the cylinder supplier that delivers the cylinder as mentioned above, whether the refinery or gas station is neglected, or whether the engine is shortened or broken. It has the effect of strengthening the product's competitiveness that it possesses and can respond quickly to defect correction and follow up.

For example, ① If an impurity that is a cause of failure of the engine 30 is found in the fuel oil filter, there is a problem in the fuel management hole of the gas station 40 or the refinery company. ② Even though the fuel fuel filter is not abnormal, the engine fuel filter 16b does not exist. If impurities are found in the cylinder 10, it may be due to the defect of the manufacturer of the cylinder 10 or the cylinder. ③ If there is no abnormality in the fueling and engine fuel filter 16b, but a failure occurs in the engine 30, the engine 30 itself. It is the responsibility to assume the defect and the quick response to it.

On the other hand, the fuel and engine fuel filter 16b is more preferably provided in an external type to facilitate maintenance or replacement.

(First embodiment)

3 is a state diagram in which a fuel filter is installed between an oil filling port and a bomb according to the first embodiment of the present invention, FIG. 4 is a perspective view of a fuel supply line according to the first embodiment of the present invention, and FIG. 6 is an enlarged cross-sectional view of a combined state of a fuel supply line and a fuel oil filter according to a first embodiment of the present invention, and FIG. 6 is an exploded perspective view of the fuel oil filter according to the first embodiment of the present invention, and FIG. 7 is a first embodiment of the present invention. FIG. 8 is an exploded cross-sectional view of a fuel oil filter according to an example, and FIG. 8 is a cross-sectional view of the fuel oil filter according to the first embodiment of the present invention.

In the fuel oiling system according to the first embodiment, a fueling fuel supply line 14 is provided between the oil filling port 20 and the cylinder 10, and between the end of the fueling fuel supply line 14 and the cylinder 10. A fuel oil filter 110 is configured.

 The main fuel supply line 14 is fixed to the oil inlet 20 at one end and the fuel oil filter 110 is fixed at the other end.

In addition, the fuel oil supply line 14 is preferably formed of a flexible material.

In addition, the end of the fuel oil supply line 14, that is, the portion where the fuel oil filter 110 is fastened, the connector 142 for fastening and fastening the fuel oil filter 110 is preferably configured.

The connector 142 includes a coupling member 144 that is pressed by one of the fuel supply lines after one end of the fuel supply line is inserted, and a fastening nut 148 that is inserted into one end of the coupling member 144 so as to flow freely. Is provided, but the expansion nut 146 is formed on the inner side of the fastening nut 148 is inserted into the coupling member 144 to expand the end to prevent the fastening nut 148 is randomly separated, and also the coupling member Inside the 144, a fastening chamfer 147 is formed to maintain the airtightness when the fuel oil filter 110 is coupled to the insertion hole 145 into which one end of the fuel oil supply line 14 is inserted.

On the other hand, at the end of the fuel oil supply line 14, that is, the portion where the fuel fuel filter 110 is coupled to prevent foreign substances and impurities from penetrating between the fuel oil filter 110 coupled through the connector 142. It is preferable to further configure the protective cap 150 is provided to.

One end of the protective cap 150 is fixed to the fuel oil supply line 14 and the other end is flashable, so that maintenance work such as replacement of the fuel oil filter 110 in the fuel oil supply line 14 is performed. Ensure space.

The fuel oil filter 110 has a case 1110 having an element 1130 accommodated therein and one end thereof open, a cap 1120 for sealing an open end of the case 1110, and the case 1110. It is composed of an element 1130 which is provided inside the) to filter the fuel oiled by the fuel oil fuel filter (110).

The case 1110 has an accommodating space 1112 formed so that a part of the element 1130 and the cap 1120 are accommodated and one end thereof is opened, and the female screw hole 1113 is fastened to the cap 1120 inside the open end. ) Is formed, the first fastening member 1114 is formed on one side of the outer periphery so as to be easily tightened or loosened by a tool or the like, and the element 1130 is opposite to the open end, that is, the inner end of the receiving space 1112. A clogging end 1111 is tightly supported by the end of

In addition, a case protrusion 1116 protruding outward is formed at one side of the case 1110, and the first periphery of the case protrusion 1116 is coupled to the filling valve 11 of the cylinder 10. A male screw portion 1115 is formed, and in particular, a chamfer or rounding is formed at the end of the case protrusion 1116, that is, the end fastened to the filling valve 11, which is the filling valve 11 and the case protrusion 1116. It is to enhance the tightening force and sealing force between, in this case is preferably formed by rounding.

In addition, the case protrusion 1116 is formed with a discharge hole for communicating the receiving space 1112 and the outside, the discharge hole is a first discharge hole having a predetermined depth from the housing space 1112 toward the case protrusion 1116 ( 1118 and the second discharge hole 1119 communicating with the outside from the first discharge hole 1118 and smaller in diameter than the first discharge hole 1118 are preferably formed.

In this case, the first discharge hole 1118 has a larger diameter than the second discharge hole 1119 to fix the element 1130 to the case 1110 as the cover protrusion of the element 1130 to be described below is inserted and fixed. This is to facilitate this.

That is, the case 1110 has a case protrusion 1116 formed at the center from the blocked end 1111 of the bottom surface of the receiving space 1112 of which one end is open, and the accommodation space 1112 and the case protrusion ( First and second discharge holes 1118 and 1119 are formed between the first and second discharge holes 1118, 1119, and the internal threaded hole 1113 and the first fastening member 1114 are formed on the outside of the open end. to be.

The cap 1120 may be fastened to the body 1122 accommodated in the accommodation space 1112 of the case 1110 and the female screw hole 1113 of the accommodation space 1112 at one outer circumferential side of the body 1122. Two male threads 1124 are formed, and a first insertion groove 1123 into which the first packing 1142 is inserted is formed at one side thereof, and a cap protrusion 1126 protruding outward is formed at the other side of the body 1122. Is formed.

In addition, the end of the body 1122 accommodated in the accommodation space 1112 penetrates the cap inlet 1126 from the first inlet hole 1128 and the first inlet hole 1128 having a predetermined depth therein, The second inlet hole 1129 having a diameter smaller than the first inlet hole 1128 is formed.

In addition, a second fastening member 1121 is formed between the cap protrusion 1126 and the body 1122 to facilitate tightening or loosening of the cap 1120 to the case 1110, and the second fastening member ( 1121 is preferably a fastening groove 1125 having a predetermined depth in the body 1122 to facilitate the insertion of tools and the like.

In addition, the second fastening member 1121 is preferably formed in a polygonal shape such as a hexagon.

On the other hand, at the outer circumference of the cap protrusion 1126, a third male thread portion 1127 is formed to be fastened and fixed to the coupling nut 148 provided in the connector 142 of the fuel oil supply line 14, and the cap protrusion 1126 is formed. A chamfer or rounding is formed at the end of 1126 to facilitate fastening with the fastening nut 148. In this case, the chamfer 1127a is preferably formed.

In particular, when the chamfer 1127a is tightened by the fastening of the fastening nut 148, the chamfer 1127a is kept tight as it is in close contact with the fastening chamfer 147 provided inside the expansion part 146 of the connector 142.

Element 1130 is composed of filter paper 1132 and first and second covers 1134 and 1136 supporting both ends of the filter paper 1132.

The filter paper 1132 is composed of a nonwoven fabric, and preferably has a hollow cylindrical shape wound in a corrugated form to have a valley along the longitudinal direction.

In addition, insertion grooves are formed at both ends of the first and second covers 1134 and 1136 to insert one end of the filter paper 1132 into a predetermined depth.

In addition, the outer side of the first cover 1134 is formed with a branch protrusion 1135 having a predetermined height for dispersing the fuel so that the fuel flowing through the cap 1120 is easily sucked from the outside of the filter paper 1132 to the inside. This is preferred.

A cover protrusion 1137 is formed at the second cover 1136 to protrude a predetermined height to the outside, and a second insertion groove 1138 into which the second packing 1144 is inserted is formed at one side of the cover protrusion 1137. The cover protrusion 1137 is formed with a third discharge hole 1139 communicating with the outside.

Looking at the coupling state of the fuel oil filter configured as described above are as follows.

First, the element 1130 is inserted into the inner accommodating space 1112 of the case 1110, and the second cover 1136 and the cover protrusion 1137 of the element 1130 are formed in the first discharge hole of the case 1110. (1118).

At this time, since the second packing 1144 is inserted into the cover protrusion 1137, the cover protrusion 1137 and the cover protrusion 1137 are sealed between the first discharge hole 1118.

Of course, in this case, the outer end of the second cover 1136 is in close contact with the clogging end 1111 of the accommodation space 1112 of the case 1110.

On the other hand, when the insertion of the element 1130 into the receiving space 1112 of the case 1110 is completed, to fasten the cap 1120 to the open end of the case 1110, which is the outer periphery of the cap 1120 The second male screw portion 1124 and the female screw hole 1113 of the case 1110 are formed to be coupled to each other, and the body 1122 of the cap 1120 is configured so that the first packing 1142 is formed in the case. It is to seal between the 1110 and the cap 1120.

In this case, in order to maximize the fastening force between the case 1110 and the cap 1120, a tightening is performed by using a tool such as a spanner, which is inserted into the tool through the fastening groove 1125 formed in the cap 1120 and then second. The fastening member 1121 is tightened by walking.

When the coupling of the fuel oil filter 110 is completed, the fuel oil filter 110 is coupled to the filling valve 11 of the cylinder 10.

At this time, the fastening is fixed by fastening the first male screw portion 1115 of the case protrusion 1116 of the fuel oil filter 110 to the filling valve 11, in which case the end of the case protrusion 1116 is rounded. Since it is formed, not only the fastening is easy to one end of the filling valve 11, but also the sealing force can be increased to prevent any leakage of fuel.

On the other hand, when tightening the fuel oil filter 110 to the filling valve (11) using a tool or the like through the first fastening member 1114 formed on the outer periphery of the case 1110, tightening is easy as fastening It is done.

In addition, when the fuel oil filter 110 is fastened and fixed to the cylinder 10, the end of the fuel oil supply line 14 connected to the oil hole 20 and the other end of the fuel oil filter 110 is connected.

This is to fasten and fix the cap protrusion 1126 of the cap 1120 formed at the end of the case 1110 and the connector 142 formed on the fuel oil supply line 14.

That is, the fastening nut 148 formed in the connector 142 is fastened and fixed to the cap protrusion 1126 and the third male threaded part 1127 of the fuel oil filter 110, and at this time, the cap protrusion 1126 is As the end is in close contact with the expansion part 146 of the connector 142, the clamping chamfer 147 formed on the inside of the expansion part 146 and the chamfer 1127a of the cap projection 1126 are kept in close contact with each other. It is fastened to be fixed.

As described above, by further configuring the fuel oil filter 110 in the fuel oil supply line 14 configured between the oil inlet 20 and the bomb 10, the filtering effect of foreign substances or impurities contained in the fuel is limited. Rather, it is to strengthen the product competitiveness that is easy to identify and maintain the cause of the damage of the engine 30 by the foreign matter or impurities contained in the fuel.

Second Embodiment

9 is an exploded cross-sectional view of a fuel oil filter according to a second embodiment of the present invention, Figure 10 is a cross-sectional view of the fuel oil filter according to a second embodiment of the present invention, refer to this, the same configuration as the first embodiment The same reference numerals are used for, and detailed description thereof will be omitted.

In the fuel oiling system according to the second embodiment, a fueling fuel supply line 14 is provided between an oil filling hole 20 and a cylinder 10, and a fueling fuel is provided between the oil filling hole 20 and the fueling fuel supply line 14. The filter 110a is configured.

The fuel oil filter 110a has a case 1110a having an element 1130a housed therein and one end thereof open, a cap 1120 for sealing an open end of the case 1110a, and the case 1110a. It is composed of an element (1130a) provided in the inner side to filter the fuel supplied to the fuel oil filter (110a).

One end of the case 1110a is opened, and an accommodating space 1112 is formed at an inner side thereof, and an internal threaded hole 1113 is formed at an inner side of the open end portion, and a first fastening member 1114 is formed at one side of the outer circumference. .

In addition, at the blocked end 1111a of the blocked portion of the accommodating space 1112 of the case 1110a, a case recess 1116a protruding inwardly into the accommodating space 1112 is formed, and the case recessed part ( A discharge hole communicating with the outside is formed in the first discharge hole 1116a, and the discharge hole has a first discharge hole 1118a having a predetermined depth from the receiving space 1112 to the outside, and is disposed outside the first discharge hole 1118a. In communication with the second discharge hole 1119a having a larger diameter than the first discharge hole (1118a) is formed.

In addition, one end of the fuel oil supply line 14 is fastened and fixed to the second discharge hole 1119a. In this case, a female screw hole is formed in the second discharge hole 1119a, and the fuel supply line 14 It is preferably formed to be screwed with).

In addition, a male screw portion is formed on the outer circumference of the case recess 1116a to screw the second female screw hole of the element 1130a to be described later.

The cap 1120 is fastened and fixed to the female screw hole 1113 of the case 1110a. Since the cap 1120 is the same configuration as the first embodiment, a detailed description thereof will be omitted.

The element 1130a includes a filter paper 1132 and first and second covers 1134 and 1136a fixed to both ends of the filter paper 1132.

Since the filter paper 1132 and the first cover 1134 are the same as in the first embodiment, a detailed description thereof will be omitted. In this case, the branch protrusion 1135 protruding from the first cover 1134 may be used to supply fuel. In addition to the branch, the case 1110a may be used to tighten or loosen the element 1130a.

The second cover 1136a is provided with a cover recess 1137a which is recessed to a predetermined depth inside the filter paper 1132, and the cover recess 1137a is provided outside the case recess 1116a of the case 1110a. A second female threaded hole 1139a is formed to screw the male threaded portion formed at the circumference thereof.

Looking at the coupling state of the fuel oil filter 110a configured as described above, the element 1130a is inserted into the accommodation space 1112 of the case 1110a, and the outer periphery of the case recess 1116a of the case 1110a. The second female thread hole 1139a of the cover recess 1137a of the element 1130a is screwed together.

In addition, the cap 1120 is screwed to the open end of the case 1110a in which the element 1130a is accommodated to seal the receiving space 1112 of the case 1110a.

In addition, the fuel oil filter 110a coupled in this way is fixed by screwing through the third male screw portion 1127 of the cap protrusion 1126 of the cap 1120 to the portion corresponding to the inside of the oil filling hole 20, that is, the vehicle body. do.

In addition, after fixing the fuel oil filter (110a) to one end of the fuel inlet (20) to combine the fuel oil supply line 14 to the other end of the fuel oil filter (110a), which is the case of the fuel oil filter (110a) 1110a) One end of the fuel oil supply line 14 is screwed into the second discharge hole 1119a formed in the case recess 1116a.

Therefore, the first embodiment is provided between the fueling fuel supply line 14 and the cylinder 10, the second embodiment is provided between the fuel injection port 20 and the fueling fuel supply line 14, It is to maximize the usability without the need for a separate gas production line, a fuel supply line and a new car production line to utilize the cylinder.

Of course, the present invention is not limited thereto, and the fuel oil filter may be configured at the cut portion after cutting one side of the fuel oil supply line.

In addition, the present invention is not limited to the LPG vehicle, and can also be used in vehicles using gasoline or diesel.

What has been described above is just one embodiment for implementing a vehicle fuel oiling system that is easy to grasp the foreign matter inflow path according to the present invention, the present invention is not limited to the above-described embodiment, it is claimed in the claims Without departing from the gist of the present invention, those skilled in the art to which the present invention pertains to the technical spirit of the present invention to the extent that various modifications can be made.

1 is a schematic diagram illustrating a fuel system of a typical LPI vehicle.

2 is a block diagram of a fuel system according to the present invention;

3 is a state in which a fuel filter is mounted between the filling port and the cylinder according to the first embodiment of the present invention.

4 is a perspective view of a fuel oil supply line according to the first embodiment of the present invention.

5 is an enlarged cross-sectional view of a combined state of a fuel supply line and a fuel oil filter according to a first embodiment of the present invention;

6 is an exploded perspective view of a fuel oil filter according to a first embodiment of the present invention.

7 is an exploded cross-sectional view of a fuel oil filter according to a first embodiment of the present invention.

8 is a cross-sectional view of a fuel oil filter according to a first embodiment of the present invention.

9 is an exploded cross-sectional view of a fuel oil filter according to a second embodiment of the present invention.

10 is a cross-sectional view of a fuel oil filter according to a second embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: cylinder 11: filling valve

12: engine fuel supply line 16b: engine fuel filter

14: oil fuel supply line 20: oil hole

30: engine 40: gas station

110,110a: Oil fuel filter 1110,1110a: Case

1111,1111a: clogging end 1112: accommodation space

1113: female thread 1114: first fastening member

1115: first male thread portion 1116: case protrusion

1118, 1118a: first discharge hole 1119,1119a: second discharge hole

1120: cap 1121: second fastening member

1122: body 1123: first insertion groove

1124: second male thread portion 1125: fastening groove

1126: cap protrusion 1127: third male thread portion

1128: first inflow hole 1129: second inflow hole

1130 and 1130a: element 1132: filter paper

1134: first cover 1135: branch protrusion

1136 and 1136a: second cover 1137: cover protrusion

1137a: cover recess 1139: discharge hole

1139a: 2nd female thread hole 1142, 1144: 1st and 2nd packing

Claims (3)

In the automotive fuel oil supply system for storing the fuel injected through the fuel supply line connected to the gas inlet of the vehicle in the cylinder and then supply the fuel stored in the cylinder to the engine through the engine fuel supply line, A fuel oil filter is provided between an end of the fuel oil supply line and a bomb; The end of the refueling fuel supply line is configured with a connector for fastening and fixing one end of the refueling fuel filter; The fuel oil filter has one end is opened and a receiving space is formed inwardly, and a case protrusion is formed to protrude a predetermined length from the inner end clogging end of the receiving space to the outside, and the receiving space and the outside communicate with the inside of the case protrusion. A case in which a discharge hole is formed, a female screw hole is formed inside the open end, and a first fastening member is formed on one side of the outer circumference; First and second covers are provided in the accommodation space of the case and are fixed to both ends of the filter paper and the filter paper, and the first cover is provided with a branching protrusion protruding outward to disperse fueled fuel. A cover protrusion having a cover protrusion through which the discharge hole of the case is inserted and fixed to the cover and a third discharge hole through which the fuel filtered through the filter paper is discharged; And A body having a second male threaded portion formed at one side to be fastened to the female screw hole of the case and a cap protrusion formed at the outer circumferential edge formed to have a third male threaded portion formed to protrude outward from the body to be connected to a connector of the fuel oil supply line. A cap having an inlet hole through which the fuel supplied through the fuel supply line enters and an insertion hole and a second fastening member formed inward to facilitate insertion of a tool between the body and the cap protrusion. And an engine fuel filter installed at one side of the engine fuel supply line to filter foreign substances or impurities contained in the fuel injected into the engine. The fuel injection system of the vehicle fuel easy to grasp the foreign material inlet path, characterized in that to determine the inflow path of foreign matter or impurities into the fuel as a result of the fuel of the fuel fuel filter and the engine fuel filter. delete In the automotive fuel oil supply system for storing the fuel injected through the fuel supply line connected to the gas inlet of the vehicle in the cylinder and then supply the fuel stored in the cylinder to the engine through the engine fuel supply line, A fuel oil fuel filter is provided between an end of the oil filling port and an end of the oil fuel supply line; The fuel oil filter has one end is opened and the receiving space is formed inward, a predetermined length protrudes inward from the closed end of the inner end of the receiving space and a case recess formed with a male thread on the outer periphery is formed, the receiving space inside the case recess A case in which a discharge hole having a female screw hole is formed to communicate with the outside and a fuel oil supply line is fastened and fixed at one end, and a female screw hole is formed inside the open end and a first fastening member is formed at any one of the outer circumferential edges; First and second covers are provided in the accommodation space of the case and are fixed to both ends of the filter paper and the filter paper, and the first cover is provided with a branching protrusion protruding outward to disperse fueled fuel. A cover recess having a second female threaded hole formed at the second cover to protrude inward to be fastened to the male screw of the case recess of the case; And A body having a second male screw portion formed at one side to be fastened to the female screw hole of the case, and a cap protrusion formed at the outer circumference so as to be protruded outward from the body and fastened to the oil filling hole, are formed through the oil filling hole into the cap protrusion. A cap formed with an inlet hole through which fuel is introduced and a second fastening member formed in a fastening groove and an inner side to facilitate insertion of a tool between the body and the cap protrusion; And an engine fuel filter installed at one side of the engine fuel supply line to filter foreign substances or impurities contained in the fuel injected into the engine. The fuel injection system of the vehicle fuel easy to grasp the foreign material inlet path, characterized in that to determine the inflow path of foreign matter or impurities into the fuel as a result of the fuel of the fuel fuel filter and the engine fuel filter.

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