KR102056981B1 - Apparatus for removing an injector and a fuel tube, and method of removing an injector and a fuel tube using the same - Google Patents

Abstract

The injector and the fuel tube separating apparatus according to the present invention include the screw holes of the upper support portion and the fuel tube of the upper support portion above the support member with the insertion rods respectively inserted into the screw holes of the cylinder head. Tighten and rotate the holes. The support screw, the injectors, and the fuel tube are raised by continuously rotating the separating screws while the lower ends of the separating screws contact the upper ends of the insertion rods. Therefore, the injector and the fuel tube can be separated from the cylinder head at one time, and damage to the injector or damage to the cylinder head can be prevented.

Description

Apparatus for removing an injector and a fuel tube, and method of removing an injector and a fuel tube using the same}

The present invention relates to an injector and a fuel tube separating apparatus, and an injector and a fuel tube separating method using the same, and more particularly, an injector which can conveniently separate an injector fixed to a cylinder head of a vehicle and a fuel tube connected to the injector at the same time. And a fuel tube separating apparatus and an injector and a fuel tube separating method using the same.

In general, an injector in a vehicle is a component that injects a precise amount of fuel into a combustion chamber at high pressure at an accurate timing in response to an ECU signal. The engine of the vehicle is provided with as many injectors as there are cylinders.

The injector is fixed in a hole formed in the cylinder head. A fuel tube is connected to the injector, and the fuel tube supplies fuel to the injector.

When the vehicle is operated for a long time, the injector may be fixed to the cylinder head due to carbide formed during the combustion of fuel.

When the injector and the fuel tube are separated for repair of the vehicle, the fuel tube is first separated, and then the injector is separately removed. In particular, when the length of the injector is long, it is difficult to separate the injector. Therefore, it takes a long time to separate the injector and the fuel tube.

In addition, when the injector is fixed to the cylinder head, the injector may be damaged or the parts around the cylinder head or the injector may be damaged while the injector is separated.

The present invention provides an injector and fuel tube separation device capable of quickly and easily separating an injector and a fuel tube from a cylinder head.

The present invention provides an injector and fuel tube separation method using the injector and fuel tube separation apparatus.

The injector and fuel tube separation device according to the invention separates from the cylinder head the injectors inserted into the cylinder head and the fuel tube which is fastened with the cylinder head and provides fuel to the injectors.

The injector and the fuel tube separating apparatus may include a support member including an upper support part supporting upper surfaces of the fuel tube and provided with screw holes, and lower support parts supporting lower surfaces of the fuel tube, respectively. It is fastened to the screw holes of the upper support and the screw holes of the fuel tube from above, and inserted into the separating screws and the screw holes of the cylinder head, respectively, to lift the fuel tube while rotating for the fastening, It may include insertion rods for supporting the lower end of the separation screws to prevent the separation screws are fastened to the screw holes of the cylinder head.

According to one embodiment of the invention, the support member is the upper support and the lower support so that the spacing between the screw holes of the upper support portion is maintained the same as the spacing between the screw holes of the fuel tube. It may further include a fixing portion for fixing them.

According to one embodiment of the invention, the spacing between the upper support and the lower support between the lower support portion to correspond to the spacing between the screw holes of the fuel tube and the threaded hole of the cylinder head. In order to adjust, the support member may further include a fixing part for fixing the upper support parts and the lower support parts to be movable horizontally.

According to one embodiment of the invention, the length of the insertion rods may be equal to or longer than the depth of the screw hole of the cylinder head.

Injector and fuel tube separation method according to the invention, the step of separating the fastening screws for fastening the fuel tube and the cylinder head for providing fuel to the injector, and inserting the insertion rods into the screw holes of the cylinder head, respectively; And a support member for supporting the upper surface of the fuel tube, the screw holes of the upper support portion corresponding to the screw holes of the fuel tube, and the lower support portion supporting the lower surface of the fuel tube. Mounting the tube to the threaded holes of the upper support and the threaded holes of the fuel tube from above the support member until the lower end of the detachable screws contacts the upper end of the insertion rods. Tightening the separating screws while the lower ends of the separating screws are in contact with the upper ends of the insertion rods. To may comprise in the support member, the injector and increases the fuel tube.

According to one embodiment of the invention, the injector and fuel tube separation method, before or after the step of mounting the support member, between the screw holes of the fuel tube and between the screw holes of the cylinder head The method may further include adjusting an interval between the upper supports and an interval between the lower supports in the support member so as to correspond to an interval of the support member.

In the injector and the fuel tube separating apparatus according to the present invention, the insertion screws are inserted into the screw holes of the cylinder head, respectively, and the screw holes for the upper support part of the upper support part and the upper portion of the support member are respectively. The injector and the fuel tube can be separated from the cylinder head at one time by engaging and rotating the screw holes of the fuel tube. Therefore, the injector and the fuel tube can be separated quickly and easily, and damage to the injector or damage to the cylinder head can be prevented.

In addition, the interval between the upper support parts and the lower support parts in the support member may be adjusted to correspond to the gap between the screw holes of the fuel tube and the gap between the screw holes of the cylinder head. Since the injector and the fuel tube separating apparatus can be used in various types of engines, the usability of the injector and the fuel tube separating apparatus can be improved.

The injector and the fuel tube separation device are provided with a plurality of separation screws spaced apart from each other. Thus, the force for separating the injector and the fuel tube is distributed and applied at various points in the fuel tube. Therefore, it is possible to prevent the fuel tube from bending when separating the injector and the fuel tube.

1 is a front view illustrating an injector and a fuel tube separating apparatus according to an embodiment of the present invention.
FIG. 2 is a side view illustrating the injector and the fuel tube separating apparatus illustrated in FIG. 1.
FIG. 3 is a front cross-sectional view illustrating a process of separating the injector and the fuel tube by using the injector and fuel tube separation apparatus shown in FIG. 1.
FIG. 4 is a side cross-sectional view illustrating a process of separating the injector and the fuel tube by using the injector and fuel tube separation apparatus shown in FIG. 1.
5 to 8 are front cross-sectional views illustrating a method of separating the injector and the fuel tube by using the injector and fuel tube separation apparatus shown in FIG. 1.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention. As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structures are shown in an enlarged scale than actual for clarity of the invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 is a front view for explaining the injector and fuel tube separation apparatus according to an embodiment of the present invention, Figure 2 is a side view for explaining the injector and fuel tube separation apparatus shown in Figure 1, Figure 3 is FIG. 4 is a front cross-sectional view illustrating a process of separating the injector and the fuel tube using the injector and fuel tube separation apparatus shown in FIG. 4, and FIG. 4 illustrates the injector and the fuel tube using the injector and fuel tube separation apparatus illustrated in FIG. 1. Side cross-sectional view for explaining the separation process.

1 to 4, the injector and fuel tube separation apparatus 100 separates the fuel tube 30 and the injectors 20 mounted on the cylinder head 10.

The injectors 20 are inserted and fixed through the cylinder head 10. The fuel tube 30 is fastened with the cylinder head 10 and fastening screws 40 to supply fuel to the injectors 20.

Specifically, the protrusions 32 are provided on one side of the fuel tube 30. The protrusions 32 are provided with fuel tube screw holes 33 penetrating up and down, respectively. The cylinder head 10 is provided with cylinder head screw holes 12 for fastening the fastening screws 50. Accordingly, the fastening screws 40 are inserted into the fuel tube screw holes 33 and the cylinder head screw holes 12.

The injector and fuel tube separation apparatus 100 includes a support member 110, separation screws 120, and insertion rods 130.

The support member 110 supports the fuel tube 30, and includes upper support parts 112, lower support parts 114, and a fixing part 116.

The upper supports 112 support the upper surface of the fuel tube 30. The upper support parts 112 are provided with upper support part screw holes 113 penetrating up and down, respectively. For example, the upper support screw holes 113 may be located at front ends of the upper support parts 112.

The spacing between the upper supports 112 is substantially the same as the spacing between the protrusions 32. Therefore, the spacing between the upper support screw holes 113 may be substantially the same as the spacing between the fuel tube screw holes 33.

The lower supports 114 support the lower surface of the fuel tube 30.

For example, the upper support parts 112 and the lower support parts 114 may be disposed at positions corresponding to each other up and down. At this time, the front end of the lower support portion 114 may be provided with receiving grooves 115 for receiving the projections 32, respectively. Thus, the lower supports 114 may stably support the fuel tube 30.

As another example, the upper supporters 112 and the lower supporters 114 may be disposed at positions not corresponding to each other up and down.

Elastic members (not shown) may be provided on the lower surfaces of the upper supports 112 and the upper surfaces of the lower supports 114, respectively. For example, the elastic members may be bonded to the upper supports 112 and the lower supports 114. Examples of the elastic members include rubber, urethane, silicone, and the like.

The elastic members buffer the upper support 112 and the fuel tube 30 and between the lower support 114 and the fuel tube 30, respectively. Therefore, the upper support parts 112, the fuel tube 30, the lower support parts 114, and the fuel tube 30 may be directly prevented from being damaged by the fuel tube 30.

The fixing part 116 fixes the upper support parts 112 and the lower support parts 114.

For example, the fixing part 116 may fix the rear end of the upper support parts 112 and the rear end of the lower support parts 114, respectively. Accordingly, the fixing part 116 may maintain the gap between the upper support parts 112 and the gap between the lower support parts 114.

Although not shown in detail, the fixing part 116 may fix the upper support parts 112 and the lower support parts 114 to be movable in a horizontal direction. For example, the fixing part 116 may be provided with guide grooves (not shown) along the horizontal direction, and the upper support parts 112 and the lower support parts 114 may move along the guide grooves. .

In this case, the upper supports 112 and the lower supports 114 are connected to each other and simultaneously move along the horizontal direction, or the upper supports 112 and the lower supports 114 are individually horizontal. Can move along the direction.

The spacing between the fastening screws 40, in particular, the spacing between the fuel tube screw holes 33 and the spacing between the cylinder head screw holes 12 may vary according to the engine type of the vehicle.

By moving the upper supports 112 and the lower supports 114 along the horizontal direction, the gap between the fuel tube threaded holes 33 and the interval between the cylinder head threaded holes 12 Correspondingly, the gap between the upper support parts 112 and the gap between the lower support parts 114 may be adjusted in the support member 110.

The separating screws 120 are fastened to the upper support threaded holes 113 and the fuel tube threaded holes 33 above the support member 110, respectively. The support tube 110 and the fuel tube 30 supported by the support member 110 are lifted by the force of the separation screws 120. Therefore, the fuel tube 30 and the injectors 20 connected to the fuel tube 30 can be easily separated from the cylinder head 10.

Handles 122 are provided at the upper ends of the separation screws 120, respectively. The separation screws 120 may be easily rotated using the handles 122.

Since the separation screws 120 are provided to be spaced apart from each other, a force for raising the fuel tube 30 is applied to various points of the fuel tube 30 as the separation screws 120 rotate. Are distributed and applied. Therefore, when the injectors 20 and the fuel tube 30 are separated, the fuel tube 30 may be prevented from bending.

The insertion rods 130 have a cylindrical shape and are inserted into the cylinder head screw holes 12, respectively. Diameters of the insertion rods 130 may be smaller than diameters of the cylinder head screw holes 12. Therefore, the insertion rods 130 may be easily inserted into the cylinder head screw holes 12.

The insertion rods 130 support lower ends of the separation screws 120 fastened to the upper support threaded holes 113 and the fuel tube threaded holes 33, respectively. In this case, the length of the insertion rods 130 may be equal to the depth of the cylinder head screw holes 12 or longer than the depth of the cylinder head screw holes 12. The length of the insertion rods 130 may be shorter than the sum of the depth of the cylinder head threaded holes 12 and the depth of the fuel tube threaded holes 33. Therefore, the upper ends of the insertion rods 130 may be located at the upper end of the cylinder head screw holes 12 or may be positioned in the middle of the fuel tube screw holes 33.

Since the insertion rods 130 block the lowering of the separation screws 120, the separation screws 120 are connected to the upper support screw holes 113 and the fuel tube screw holes 33. Even when rotated in the fastening direction in the respective fastened state, the separation screws 120 are not fastened with the cylinder head screw holes 12. Therefore, the insertion rods 130 may prevent the separation screws 120 from being fastened to the cylinder head screw holes 12.

When the insertion rods 130 continue to rotate the separation screws 120 in the fastening direction in a state in which the lowering of the separation screws 120 is blocked, the separation screws 120 rotate. The support member 110 and the fuel tube 30 are lifted by relative movement by the force. Therefore, the fuel tube 30 and the injectors 20 connected with the fuel tube 30 may be simultaneously separated from the cylinder head 10.

Meanwhile, elastic members (not shown) may be provided on at least one of the lower surface of the separation screws 120 and the upper surface of the insertion rods 130. For example, the elastic members may be bonded to the bottom surface of the separation screws 120 and the top surface of the insertion rods 130. Examples of the elastic members include rubber, urethane, silicone, and the like.

The elastic members buffer the bottom surfaces of the separation screws 120 and the top surfaces of the insertion rods 130, respectively. Thus, the separation screws 120 and the insertion rods 130 may directly collide with each other to prevent the separation screws 120 and the insertion rods 130 from being damaged. In addition, it is possible to prevent the pulverized product generated when the separating screws 120 and the insertion rods 130 are damaged from remaining in the cylinder head screw holes 12.

5 to 8 are front cross-sectional views illustrating a method of separating the injector and the fuel tube by using the injector and fuel tube separation apparatus shown in FIG. 1.

Referring to FIG. 5, first, the fastening screws 40 for fastening the fuel tube 30 and the cylinder head 10 are removed.

The fastening screws 40 are fitted into the fuel tube screw holes 33 provided in the projections 32 of the fuel tube 30 and the cylinder head screw holes 12 of the cylinder head 10. . The fastening screws 40 are separated using a tool such as a wrench.

Referring to FIG. 6, insertion rods 130 are respectively inserted into the cylinder head screw holes 12. In this case, the insertion rods 130 may be inserted into the cylinder head screw holes 12 through the fuel tube screw holes 33.

Diameters of the insertion rods 130 may be smaller than diameters of the cylinder head screw holes 12. Therefore, the insertion rods 130 may be easily inserted into the cylinder head screw holes 12.

In addition, the length of the insertion rods 130 may be equal to the depth of the cylinder head screw holes 12 or longer than the depth of the cylinder head screw holes 12. The length of the insertion rods 130 may be shorter than the sum of the depth of the cylinder head threaded holes 12 and the depth of the fuel tube threaded holes 33. Accordingly, upper ends of the insertion rods 130 may be positioned at the upper ends of the cylinder head screw holes 12 or may be positioned in the middle of the fuel tube screw holes 33.

Thereafter, the support member 110 is mounted on the fuel tube 30.

In detail, the upper support part 112 of the support member 110 supports the upper surface of the fuel tube 30. In this case, the upper support threaded holes 113 correspond to the fuel tube threaded holes 33, respectively. In addition, the lower support part 114 of the support member 110 supports the lower surface of the fuel tube 30. In this case, the receiving grooves 115 of the lower support parts 114 may accommodate the protrusions 32 of the fuel tube 30, respectively. Therefore, the lower support parts 114 may stably support the fuel tube 30.

For example, the support member 110 may be mounted on the fuel tube 30 in a state where the space between the upper supports 112 and the space between the lower supports 114 are fixed.

As another example, the interval between the upper support portions 112 and the support member 110 in the support member 110 to correspond to the interval between the fuel tube screw holes 33 and the cylinder head screw holes 12. After adjusting the gap between the lower support parts 114, the support member 110 may be mounted on the fuel tube 30.

In another example, after the support member 110 is mounted on the fuel tube 30, the support member 110 corresponds to the space between the fuel tube screw holes 33 and the space between the cylinder head screw holes 12. In the support member 110, a gap between the upper support parts 112 and a gap between the lower support parts 114 may be adjusted.

Meanwhile, the mounting member 130 may be inserted into the cylinder head screw holes 12 after the supporting member 110 is first mounted on the fuel tube 30.

Referring to FIG. 7, the separation screws 120 may be separated from the upper support screw holes 113 until the lower ends of the separation screws 120 contact the insertion rods 130 and the upper ends. Fastening to the fuel tube screw holes 33.

By rotating the separation screws 120 above the support member 110, the separation screws 120 pass through the upper support thread holes 113 to the fuel tube thread holes 33. Tighten.

Since the upper end of the insertion rods 130 is located at the upper end of the cylinder head screw holes 12 or in the middle of the fuel tube screw holes 33, the lower ends of the separation screws 120. In addition, the cylinder head screw holes 12 are located at the upper end, or the fuel tube screw holes 33 are located in the middle. Therefore, the insertion rods 130 may prevent the separation screws 120 from being fastened to the cylinder head screw holes 12.

Referring to FIG. 8, the support member 110, the lower end of the separation screws 120 by rotating the separation screws 120 in contact with the insertion rods 130 and the upper end. Raise the injectors 20 and the fuel tube 30.

Since the insertion rods 130 block the lowering of the separation screws 120, if the separation screws 120 are continuously rotated in the fastening direction, the separation screws 120 may rotate. As a result, the support member 110 and the fuel tube 30 are raised by relative movement. As the support member 110 and the fuel tube 30 rise, the injectors 20 connected to the fuel tube 30 may also rise. Therefore, the fuel tube 30 and the injectors 20 can be separated from the cylinder head 10 at the same time.

While the foregoing has been described with reference to preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

100: injector and fuel tube separation device 110: support member
112: upper support portion 114: lower support portion
116: fixing part 120: separation screws
122: handle 130: insertion rod
10: cylinder head 20: injector
30: fuel tube

Claims (6)

An injector and a fuel tube separating apparatus for separating injectors inserted into a cylinder head and a fuel tube which is fastened with the cylinder head and fastening screws to supply fuel to the injectors at one time from the cylinder head,
A support member for supporting an upper surface of the fuel tube and including upper support portions each having threaded holes and lower support portions for supporting a lower surface of the fuel tube;
Separating screws fastened to the screw holes of the upper support part and the screw holes of the fuel tube above the support member, and rotating the screw to raise the fuel tube; And
Inserting rods respectively inserted into the screw holes of the cylinder head and supporting lower ends of the separating screws to prevent the separating screws from being engaged with the screw holes of the cylinder head,
In order to adjust the spacing between the upper supports and the spacing between the lower supports so as to correspond to the spacing between the threaded holes of the fuel tube and the threaded holes of the cylinder head, the support member is arranged in the upper portion. Injector and fuel tube separation device further comprises a support for fixing the support and the lower support to the horizontal movement. The fixing part of claim 1, wherein the support member fixes the upper support parts and the lower support parts so that the spacing between the screw holes of the upper support part is the same as the spacing between the screw holes of the fuel tube. Injector and fuel tube separation device further comprising. delete The injector and fuel tube separation device of claim 1, wherein the insertion rods have a length equal to or longer than a depth of a screw hole of the cylinder head. Separating the fastening screws for fastening the cylinder tube head and the fuel tube providing fuel to the injector;
Inserting insertion rods into screw holes of the cylinder head, respectively;
An upper support portion supports the upper surface of the fuel tube, the screw holes of the upper support portion correspond to the screw holes of the fuel tube, respectively, and a support member is provided so that the lower support portion supports the lower surface of the fuel tube. Mounting on;
Fastening the separating screws to the screw holes of the upper support and the screw holes of the fuel tube until the lower ends of the separating screws contact the upper ends of the insertion rods; And
Rotating the separating screws while raising the support member, the injectors, and the fuel tube while the lower ends of the separating screws are in contact with the upper ends of the insertion rods.
Before or after the step of mounting the support member,
And adjusting the gap between the upper supports and the gap between the lower supports in the support member so as to correspond to the gap between the screw holes of the fuel tube and the gap between the screw holes of the cylinder head. Injector and fuel tube separation method characterized in that. delete

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