KR200366234Y1 - Hi pressure fuel pump tester - Google Patents

Abstract

The present invention relates to a high pressure fuel pump tester that can easily check the abnormality of the fuel pump in the fuel injection device with high pressure, such as a common rail system of a diesel vehicle.

This design consists of a set of gauges, blocks, adapters, and high pressure hoses, so that inspection work can be performed without problems even at high pressures, and is easy to install and handle. By providing the high pressure fuel pump tester, it is possible to perform the inspection work simply and effectively in the field in the event of a diesel engine adopting the fuel injection device such as the common rail system, thereby reducing the time and cost related to the inspection work. It was to be expected.

The high pressure fuel pump tester provided in the present invention has a connector with an upper gauge connector and a connector at both ends, and has a fuel passage formed in an axial direction, a gauge fastened to the gauge connector of the body, and one connector of the body. The first connecting member connected to the common rail side by using the other connecting nut connected to each other, and connected to the fuel pump side using the connecting nut connected to the other one of the body through the other connecting nut It characterized in that it comprises a second connecting member.

Description

Hi pressure fuel pump tester

The present invention relates to a high-pressure fuel pump tester that can easily check the abnormality of the fuel pump in the high-pressure fuel injection device, such as a common rail system of a diesel vehicle, more specifically, can be installed at the same time to withstand high pressure The new structure of the high pressure fuel pump tester is free and easy to handle, which makes it easy to check the fuel pump in case of abnormality. It relates to a high pressure fuel pump tester.

In general, the fuel injection of diesel vehicles has been steadily developing technologies for high pressure, and the required injection pressure for such a high pressure is continuously increasing.

At present, continuous research and development on a system in which fuel is injected at such a high pressure is being conducted.

In recent years, the fuel injection of diesel vehicles employs a common rail system. The common rail system accumulates high-pressure fuel produced by a high-pressure supply pump in a common rail, a pressure storage chamber, and then attaches a solenoid valve. By controlling the pressure behind the nozzle needle by means of which the start and end of the injection is determined.

This common rail system is applied to almost all diesel vehicles due to the advantages of high pressure of injection system, precise control of injection rate, complete electronic control of injection amount and injection timing.

Figure 1 shows a schematic diagram showing an example of a six-cylinder diesel engine applying a fuel injection using a common rail system, Figure 2 shows a perspective view showing the connection of a conventional metal high pressure pipe, respectively.

The common rail system includes a fuel pump (100) for generating high pressure, a common rail (110) for accumulating high pressure fuel, and an injector (120) with a solenoid valve for controlling supply of high pressure fuel to the injection nozzle. Consists of

Here, reference numeral 130 denotes a high-pressure pipe of a metal material which is band-formed into a predetermined shape connecting the supply valve and the common rail.

Therefore, since the fuel of high pressure is always accumulated in the common rail, the injection does not directly depend on the pressurization and the pressure, and thus the degree of freedom in controlling it can be greatly improved.

If a diesel vehicle adopting such a common rail system has an abnormality in the pressure of the fuel injection device, problems such as start-up delay, soot state failure, engine misalignment, start-up off, and output reduction occur. In this case, fuel injection The problem is solved by checking the pressure of the high pressure fuel pump which can provide high pressure to the device, especially the common rail.

Occasionally, the first method of checking the amount of fuel injected from the fuel injection device is used. However, the reliability of the test is poor, and most of them use the method of checking the pressure of the pump.

The above inspection work is carried out in the shops equipped with inspection equipment such as large repair shops and after-sales centers, and special inspection equipment needs special attention when inspecting the high-pressure fuel injection system such as the common rail system. To perform the check.

Such inspection equipment is expensive and has a considerable weight and size due to the handling of high pressure.

However, the abnormality of the vehicle is mainly generated on the road, that is, the field during driving. In this case, the inspection is impossible in the field because there is no proper equipment. There is an inefficiency in terms of time and cost because of the inspection work using equipment.

Therefore, the present invention has been devised in view of such a point, and a gauge, a block, an adapter, a high pressure hose, etc. are composed of one set, so that inspection work can be performed without problems even at high pressure, and easy to install and handle. The high-pressure fuel pump tester has a new structure that is easy to carry because it has two simple parts, so that the inspection work can be effectively performed in the field in the event of a diesel engine employing a fuel injection device such as a common rail system. The purpose is to enable time and cost savings in terms of work.

1 is a schematic view showing a fuel line applying a common common rail system

2 is a perspective view showing a connection state of a conventional metal high pressure pipe

Figure 3 is a perspective view showing the components of the high pressure fuel pump tester according to the present invention

Figure 4 is an exploded perspective view showing the components of the high pressure fuel pump tester of another embodiment according to the present invention

5 is a perspective view of the combination of FIG.

6 and 7 are perspective views showing another application state of the first and second connection members according to the present invention

8a, 8b is a cross-sectional view showing another example of the state of use of the high-pressure fuel pump tester according to the present invention

9 is a cross-sectional view showing an example of a state in which the shut-off valve is installed in the high pressure fuel pump tester according to the present invention

10 is a cross-sectional view showing an example of the use state of the high-pressure fuel pump tester according to the present invention

<Explanation of symbols for main parts of drawing>

10: gauge connector 11: adapter connector

12a, 12b, 12c, 12d: fuel passage 13: body

14a, 14b: Hollow bolt 15: First adapter

16a, 16b, 16c: connection nut 17: first connection member

18: second adapter 19: second connection member

20: housing nut 21: auxiliary connection member

22: groove 23: gauge

30: shut-off valve

The present invention for achieving the above object has a gauge connector on the upper end and a connector at both ends and the fuel passage is formed in the axial direction, the gauge is fastened to the gauge connector of the body, and fastened to one connection of the body The first connecting member connected to the common rail side by using a connecting nut on the other side, and connected to the fuel pump side using the connecting nut on the other side by being fastened to the other connecting end of the body. Characterized in that it comprises a two connecting member.

In addition, the upper gauge connector and the connector at both ends, and the fuel passage is formed in the axial direction, the gauge which is fastened to the gauge connector of the body, and the hollow bolt fastened to one connector of the body is rotatable The first adapter to be assembled in the structure, the first connecting member connected to the common rail side by using the other connecting nut and the radially fastened to the first adapter and the other connection fastening to the other connector of the body And a second adapter assembled in a rotatable structure by a hollow bolt, and a second connecting member connected to the fuel pump side by using a connecting nut connected to the second adapter in a diagonal direction. Characterized in that the configuration.

In addition, the second adapter is characterized in that it consists of a rectangular parallelepiped shape having a hexagonal cross-section.

In addition, the hollow bolt is characterized by consisting of a structure having a groove portion of the circumferential surface including the fuel passage and radially penetrating passages extending in the radial direction after extending along the axis line at the end of the bolt section; do.

In addition, the second adapter is characterized in that it is assembled in the form of crossing the one end of the body by the hollow bolt penetrated in the radial direction.

In addition, the first connection member and the second connection member is characterized in that the high-pressure hose with fluidity.

In addition, the first connection member and the second connection member made of the high pressure hose is characterized in that the hose of a polymer material reinforced with spiral steel.

In addition, the first connection member and the second connection member is made of a metal pipe, it is characterized in that the bending molding to a predetermined shape.

In addition, the first connection member is formed of a metal pipe and the second connection member is characterized in that the high-pressure hose with fluidity.

In addition, the first connection member is characterized in that it further comprises an auxiliary connection member having a connection nut on one side and the other side can be fastened to the connection nut of the first connection member and bent at a predetermined angle.

In addition, the connector of the body toward the first connection member has a fuel passage in the axial direction while one side is coupled to the connector of the body and the other side to be coupled to the first connection member and to open and close the fuel passage in the central radial direction. Characterized in that the further provided with a shut-off valve having a bolt-shaped adjustment cock to enable.

In addition, the connector of the body toward the first connecting member has a fuel passage in the axial direction while one side is coupled to the connector of the body and the other side through the first adapter to which the first connecting member is coupled in a rotatable structure is fixed hollow It is characterized in that it further comprises a shut-off valve having a bolt-shaped adjustment cock to be coupled to the type bolt and to open and close the fuel passage in the central radial direction.

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

Figure 3 is a perspective view showing the components of the high pressure fuel pump tester according to the present invention, Figure 4 is an exploded perspective view showing the components of the high pressure fuel pump tester of another embodiment according to the present invention, Figure 5 is a combined perspective view of Figure 4 Are shown respectively.

As shown in FIG. 3, the high pressure fuel pump tester is formed by combining a component to which a gauge is largely attached, a component connected to the high pressure fuel pump side, a component connected to the common rail side, and the like in one set. It can be set and carried in a box, and thus has a feature that can be effectively utilized when inspection in the field is required.

To this end, the high pressure fuel pump tester has a gauge connector 10 at the top and a connector 11 at both ends, and a body 13 in which an fuel passage 12a is formed in the axial direction, and the body 13 of the body 13. It is fastened to the gauge connector 10 and connected to the gauge 23 for checking the fuel pressure and one connector 11 of the body 13 to communicate with each other and the common rail using the other connector nut 16a. A first connection member 17 connected to the side and a second connection member connected to the fuel pump side using the other connection nut 16b connected to each other by being fastened to the other connector 11 of the body 13. It consists of a connecting member (19).

In this case, the first connection member 17 and the second connection member 19 may be implemented in various forms using a high pressure hose and a metal pipe made of a polymer material, which will be described later.

In addition, the present invention is a more preferred embodiment according to the use of the two adapters to facilitate the connection installation of the first connecting member 17 and the second connecting member 19 and the common rail and the fuel pump Provide more.

That is, as shown in FIGS. 4 and 5, the high-pressure fuel pump tester includes a gauge 23 for checking fuel pressure, a body 13 for mounting the gauge 23, and a common rail side. A first adapter 15 and a hollow bolt 14a for assembling the first connecting member 17, the second connecting member 19 connected to the fuel pump side, and the first connecting member 17 to the body 13. ), And a second adapter 18 and a hollow bolt 14b for assembling the second connecting member 19 to the body 13.

The fuel passage 12a is formed through the body 13 having a rectangular block shape along the longitudinal axis, and both end portions are formed with a connector 11 having a screwing structure, respectively. The first adapter 15 and the second adapter 18 are fastened and assembled.

In addition, a gauge connector 10 is formed in the middle of the length of the body 13 to vertically communicate with the fuel passage 12a side therein, and acts on the fuel passage 12a as the gauge 23 is fastened thereto. The fuel pressure can be checked by the scale of the gauge 23.

Gauge 23 indicating the fuel pressure as a scale value is assembled on the body 13 side to receive the fuel pressure, which is fastened on the housing nut 20 which is directly fastened to the gauge connector 10 of the body 13. It is assembled so that the fuel pressure acting on the fuel passage 12a of the body 13 can be detected.

The first adapter 15 is a part supporting the first connecting member 17 which is assembled to one end of the body 13 and connected to the common rail side.

The first adapter 15 is formed in a ring shape having a circular or hexagonal cross section, and has a screw hole penetrating from the inner circumferential surface to the outer side in a radial direction so that the fuel supplied from the body 13 side (substantially (Fuel supplied via the hollow bolt) can be sent to the first connecting member 17 through this screw hole, and the screw hole at this time can be connected while the one screw fastening portion of the first connecting member 17 is fastened Here, the first connection member 17 may be implemented as a high pressure hose as shown in FIG. 3, but it is preferable to use a metal pipe as in the prior art, which is advantageous in the form of a flat or bent banding in terms of manufacturing unit cost as shown in FIG. 4. Will do.

The first adapter 15 is supported by being fastened like a washer by the hollow bolt 14a and rotated 360 ° with the axis of the body 13 as the central axis, whereby the first adapter is connected to the first adapter 15. The connecting member 17 can also be rotated together.

For example, at one end of the body 13, the first adapter 15 is in close contact with each other in concentric circles, and the hollow bolt 14a penetrates the center of the first adapter 15 from the outside. By being fastened to one side of the connector 11, the first adapter 15 is able to rotate around the hollow bolt (14a) as a central axis.

This rotation structure can provide an advantage that can facilitate the connection of the first connecting member 15 more easily.

For the flow of fuel, the hollow bolt 14a is formed with a fuel passage 12b extending radially from the end of the cross section of the bolt and radially penetrating therein, and including an end portion of the radially penetrating passage. Grooves 22 are formed in the circumferential surface thereof so that fuel can be normally sent to the first connecting member 17 regardless of the rotational position of the first adapter 15.

The second adapter 18 is a part supporting the second connection member 19 connected to the fuel pump side while being assembled at the other end of the body 13.

In this case, the second adapter 18 may have a circular or polygonal shape, but most preferably, a rectangular parallelepiped shape having a hexagonal cross-section, and the body 13 together with the washer by the hollow bolt 14b penetrating the radial direction. Assembled and supported in a form that crosses one end of the can be rotated 360 ° around the axis of the body 13 as a central axis, and thus the second connecting member 19 connected thereto can also be rotated together.

For example, the long rectangular parallelepiped shape of the second adapter 18 is in close contact with the end portion of the body 13, and then the hollow bolt 14b is radially outward from the second adapter 18. By being fastened to the other connector 11 of the body 13 while penetrating in the direction, the second adapter 18 is rotatable about the hollow bolt 14b as a central axis. In this case, the second adapter 18 is formed to have a long length to control the high pressure by extending the fuel passage. Accordingly, when the second connecting member 19 is connected to the high pressure hose, the length can be shortened. This is because the production cost is lowered.

In addition, a fuel passage 12c for a predetermined section is formed inside the second adapter 18 along an axis line, and the fuel passage 12c includes the fuel passage 12d of the hollow bolt 14b to be described later. It will work.

In addition, the second adapter 18 is formed with a screw hole penetrating from the fuel passage 12c to one end face (any one end face of the hexagonal section) in the radial direction to the second connecting member 19. One screw fastening portion of the can be connected while being coupled, the fuel can flow from the second connecting member 19 to the fuel passage (12c).

As the second connecting member 19 is fastened and assembled to one end surface of the hexagonal cross section of the second adapter 18 as described above, the second connecting member 19 is inclined at a predetermined angle, for example, about 60 °. It is possible to take an inclined posture, and thus it is possible to secure more favorable working conditions when connecting to the fuel pump side.

For the flow of fuel, the hollow bolt 14b also has a fuel passage 12d extending in the radial direction after extending along the axis line at the end of the cross section of the bolt, and having a radially penetrating end of the passage. The groove 22 is also formed on the circumferential surface thereof so that the fuel is normally in the fuel passage 12c of the second adapter 18 regardless of the rotational position of the second adapter 18. It can be sent to the fuel passage 12d.

The first connecting member 17 and the second connecting member 19 connected to the common rail side and the fuel pump side, respectively, are made of a pipe member having a screwing portion on one side and connecting nuts 16a and 16b on the other side. It is fastened and assembled on each adapter side using a screw fastening part, and is connected to each common rail side and a fuel pump side by using a connection nut.

That is, the first connecting member 17 having a short length is fastened on the circumferential surface in the radial direction to the first adapter 15 and connected to the common rail side using the connecting nut 16a on the other side while communicating with each other. , The second connecting member 19 having a long length is fastened to one end surface in the oblique direction to the second adapter 18 and connected to the fuel pump side using the other connecting nut 16b while communicating with each other. .

At this time, the connection nuts 16a and 16b are fastened to the first and second connection members, respectively, so that the connection nuts 16a and 16b are mounted so as not to be pulled out.

The first connection member 17 and the second connection member 19 used in the above embodiments, as shown in FIG. 3, apply a high pressure hose having fluidity to both sides, or have a predetermined shape. As shown in FIG. 6, a metal pipe band-shaped in the shape of a high-pressure pipe of an existing metal connecting the fuel pump and the common rail may be applied, or as shown in FIG. 7, both the high-pressure hose and the metal pipe may be applied in parallel.

That is, in the case of applying the connection member made of metal pipes, the existing high pressure pipes may be divided in a suitable line, and the first connection member and the second connection member may be band-formed in the shape of each divided portion.

In addition, in the case of applying a fluid high pressure hose, each fastening connection part, that is, a screw fastening part and a connection nut part is made of metal and only the remaining length is formed by integrally forming a high pressure hose, for example, spiral steel. It is also possible to use reinforced polymer hoses (not shown).

As described above, the use of metal pipes in parallel without using all of the first and second connection members as a high pressure hose having favorable fluidity is to reduce the manufacturing cost because the high pressure hose is expensive.

On the other hand, the present invention can further provide a means for solving the inconvenience of the connection work due to the narrow space during the common rail side connection work.

For example, as shown in Figs. 8A and 8B, the connecting nut 16c is provided on one side, and the other side is screwed, and is banded at a predetermined angle, for example, about 80 to 90 degrees. The auxiliary connecting member 21 is further provided.

At this time, the connection nut 16c is mounted in a structure that is hung on the jaw while being partially inserted into the front end of the auxiliary connection member 21, and the connection nut 16c is connected and sealed by a force pulled while being fastened to the other member. (The fitting structure can be said to be conventional).

Therefore, the auxiliary connecting member 21 is connected to the first adapter 15 in the same manner as the first connecting member 17 by using one screw fastening part as shown in FIG. 8A, or as shown in FIG. 8B. In other words, the connecting nut 16c of the first connecting member 17 or the connecting nut 16b of the second connecting member 19 can be fastened. It is desirable to be able to fasten with the common rail side or the fuel pump side using a) so that it can be easily utilized when the connection work space is narrow or the length of the connection is extended as necessary. Here, as the specification of the connection nut 16a of the first connection member 17 of the diesel vehicle currently used is 12 mm and 14 mm, it may be desirable to provide two configurations in the present invention.

In addition, according to the present invention, as shown in FIG. 9, the high-pressure fuel supplied from the fuel pump side may be blocked before entering the common rail side, that is, between the body 13 and the first connection member 17. It provides a means to block the progress of the pressure so that only the pressure provided by the fuel pump can be measured except the pressure in the common rail.

To this end, the connector 11 of the body 13 of the first connecting member 13 has a fuel passage in the axial direction, and one side thereof is coupled to the connector 11 of the body, and the other side thereof may couple the first connecting member 17 to each other. And the central radial direction is further provided with a shut-off valve having a bolt-shaped adjustment cock to open and close the fuel passage.

In addition, as another embodiment (see FIG. 9), the connector 11 of the first connecting member side body 13 has a fuel passage in an axial direction, and one side thereof is coupled to the connector 11 of the body, and the other side of the connector 11 of the first connecting member body 13 is connected to the first connector 11. A shut-off valve 30 having a bolt-shaped adjustment cock for penetrating the first adapter coupled with the connecting member in a rotatable structure and allowing a fixed bolt to be coupled and opening and closing the fuel passage in a central radial direction. Is further provided.

As the shut-off valve 30 is installed as described above, it is possible to prevent the failure of the disciple control device according to the high-pressure fuel provided over the common rail when measuring pressure, and also to measure the exact value of the pressure provided from the fuel pump. There is an advantage to being able to.

Referring to the state of use of the high-pressure fuel pump tester according to the present invention.

First, the present invention of FIG. 3 directly connects one side of the first connection member 17 and the second connection member 19 to both sides of the body 13 to which the gauge 23 is coupled to the upper side. In addition, the other side of the first connection member 17 is coupled to the common rail side and the other side of the second connection member 19 to the fuel pump side, respectively. Therefore, the high-pressure fuel provided from the fuel pump is provided to the common rail side through the second connecting member 19, the body 13, the gauge 23, and the first connecting member 17, wherein the fuel pressure at the gauge 23 is provided. Will be measured.

In another embodiment, as illustrated in FIG. 10, the inspection of the fuel injection device of the diesel vehicle to which the common rail system is applied is performed by measuring the pressure of the fuel line.

First, the high pressure fuel pump tester is assembled.

That is, the upper gauge connector 10 of the body 13 is fastened and assembled to the gauge 23 using the housing nut 20, and both ends 11 of the body 13 are hollow bolts 14a, ( The first adapter 15 and the second adapter 18 are fastened and assembled using 14b).

The first adapter 15 and the second adapter 18 assembled in this way are rotatable around the hollow bolts 14a and 14b.

Subsequently, the screw holes of the first connecting member 17 and the second connecting member 19, that is, the screw fastening parts, are assembled into the respective screw holes of the first adapter 15 and the second adapter 18. The assembly of the pump tester can be completed.

The above assembly process does not have any problem even if the order is changed, it is possible to maintain the air tightness by mounting the washer and the like in the fastening portion and the gauge fastening portion of the hollow bolt.

Subsequently, remove the high pressure pipe connected between the high pressure fuel pump and the common rail and install the assembled high pressure fuel pump tester in place.

That is, the connecting nut 16a of the first connecting member 17 is fastened to the common rail side (high pressure pipe fastening portion), and the connecting nut 16b of the second connecting member 19 is connected to the fuel pump side (high pressure). Connect to the pipe fastening part).

At this time, when the work condition is required during the common rail side connection work, the auxiliary connection member 21 can be connected one more time in the middle.

The connecting operation of the first connecting member 17 and the second connecting member 19 can be easily performed through the rotatable structure of the adapter, and is more easily because it is assembled at a predetermined angle to the adapter. Connection can be performed.

In addition, in the case of the second connection member 19, in the case of a high pressure hose with fluidity, it can be bent freely and connected to the high pressure fuel pump side, and in the case of a metal pipe, it can be provided in a form almost similar to that of a conventional high pressure pipe. The connection work can be performed without much effort.

Therefore, when the installation of the high pressure fuel pump tester replacing the high pressure pipe in the fuel injection device is completed, the inspection operation can be performed from this time.

Allow the fuel to be supplied and injected normally after starting the engine.

The fuel discharged at high pressure from the fuel pump is the fuel passage 16c of the second connecting member 19 → the second adapter 18 → the fuel passage 16d of the hollow bolt 14b → the fuel passage of the body 13. (16a) → fuel injection 16b → first connecting member 17 → common rail → injector of hollow bolt 14a is finally injected.

Thus, the fuel pressure acting on the fuel supply line having the above path in the course of the final injection from the fuel supply can be confirmed through the gauge 23 through the body 13.

Therefore, the operator can check the gauge scale and determine that the pressure is equal to or less than the set pressure, and take the following action.

In addition, when the shutoff valve 30 is mounted, the fuel pressure of only the fuel pump side may be measured according to opening and closing of the fuel passage of the adjusting cock.

As described above, the high pressure fuel pump tester of the present invention is easily assembled in the field, and then simply connected and installed to provide an advantage of checking an abnormality of the engine fuel injection device (fuel pump).

In the embodiment of the present invention is only to describe a preferred embodiment of the present invention is not limited to the technical scope of the present invention. That is, the present invention intends to measure the fuel pressure provided to the common rail side only to the high pressure fuel pump tester, but it is also possible to measure the fuel pressure by applying the other high pressure line, that is, the pipeline connecting the common rail side to the injector. It is also possible to apply the test apparatus wherever high voltage lines are applied, and various modifications can be made within the technical spirit, and it is natural that such modifications fall within the scope of the present invention.

As described above, the present invention is easy to install and handle while working under high pressure conditions, and consists of one set of gauge, body, adapter, high pressure hose, etc. to provide a portable high pressure fuel pump tester, thereby adopting the common rail system. In the inspection of a fuel injection device, the inspection work can be effectively performed in the field, and therefore, there is an advantage that the time and cost savings associated with the inspection work can be expected.

Claims (12)

Gauge fastened to the gauge connector 10 of the upper portion and the body 13 having the connector 11 at both ends, the fuel passage 12a is formed in the axial direction, and the gauge connector 10 of the body 13 (23) and the first connecting member (17) which is fastened to one connector (11) of the body (13) and communicates with each other and connected to the common rail side using the other connecting nut (16a), and the body High pressure characterized in that it comprises a second connecting member 19 is fastened to the other connector 11 of 13 and connected to each other and connected to the fuel pump side by using the other connection nut (16b) Fuel pump tester. Gauge fastened to the gauge connector 10 of the upper portion and the body 13 having the connector 11 at both ends, the fuel passage 12a is formed in the axial direction, and the gauge connector 10 of the body 13 (23) and the first adapter (15) assembled in a rotatable structure by the hollow bolt (14a) fastened to one connector 11 of the body 13, the radius of the first adapter (15) The first connection member 17 connected to the common rail side using the other connection nut 16a connected to each other in the direction, and the hollow type that is fastened to the other connector 11 of the body 13. Fuel pump side using the second adapter 18 assembled in a rotatable structure by the bolt 14b and the second adapter 18 in the oblique direction to communicate with each other and the other connecting nut 16b High pressure fuel pump tester, characterized in that it comprises a second connecting member (19) connected to. The high pressure fuel pump tester according to claim 2, wherein the second adapter (18) has a rectangular parallelepiped shape having a hexagonal cross section. The method of claim 2, wherein the hollow bolts (14a), (14b) of the fuel passages (12b), 12d and radially penetrating passages extending radially after extending along the axis at the end of the bolt section High pressure fuel pump tester, characterized in that the structure having a groove portion 22 of the circumferential surface including the end. 4. The high pressure fuel pump tester according to claim 2 or 3, wherein the second adapter (18) is assembled in such a way as to intersect one end of the body (13) by a hollow bolt (14b) penetrating radially. The high pressure fuel pump tester according to claim 1 or 2, wherein the first connection member (17) and the second connection member (19) are fluid high pressure hoses. The high pressure fuel pump tester according to claim 6, wherein the first connection member (17) and the second connection member (19) made of the high pressure hose are polymer hoses reinforced with spiral steel. The high pressure fuel pump tester according to claim 1 or 2, wherein the first connection member (17) and the second connection member (19) are made of metal pipes and are bent into a predetermined shape. The high pressure fuel pump tester according to claim 1 or 2, wherein the first connection member (17) is formed of a metal pipe and the second connection member (19) is a high pressure hose having fluidity. The method according to claim 1 or 2, wherein the first connecting member 17 has a connecting nut (16c) on one side and the other side can be fastened to the connecting nut (16a) of the first connecting member 17 at a constant angle High-pressure fuel pump tester, characterized in that it further comprises a band-forming auxiliary connection member (21). 2. The connector 11 of the body 13 of the first connection member has a fuel passage in an axial direction, and one side thereof is coupled to the connector 11 of the body, and the other side of the connector 13 of the body 13 is connected to the first connection member 17. High pressure fuel pump tester characterized in that it further comprises a shut-off valve (30) having a bolt-shaped adjustment cock to be coupled and to open and close the fuel passage in the central radial direction. 3. The first connector of claim 2, wherein the connector 11 of the body 13 of the first connection member has a fuel passage in an axial direction, and one side thereof is coupled to the connector 11 of the body, and the other side of the connector 13 connects the first connection member. It is characterized in that it further comprises a shut-off valve (30) having a bolt-shaped adjustment cock to be able to couple the hollow bolt to be fixed through the adapter rotatable structure and to open and close the fuel passage in the central radial direction High pressure fuel pump tester.