KR20210046106A - Mounting device of intake manifold - Google Patents

Abstract

Disclosed is a mounting device of an air intake manifold. According to one embodiment of the present invention, provided is the mounting device of the air intake manifold, which has improved dimensional stability and assembly property through the stable coupling with a coupling object that is coupled to the air intake manifold. Moreover, the mounting device of the air intake manifold comprises a boss part (110) and a coupling member (200).

Description

Mounting device of intake manifold

The present invention relates to a mounting apparatus for an intake manifold with improved dimensional stability when assembling objects to be coupled to an intake manifold with each other.

In general, engines that generate power in a vehicle allow air to flow in from the outside and burn with fuel and then discharge the generated exhaust gas to the outside. An intake manifold consisting of a connected runner is provided.

The intake manifold is a key component that supplies air introduced into the air duct from the engine room to the cylinder through each port of the manifold through an air cleaner, and causes a significant effect on specific power and combustion stability.

The demand for weight reduction and cost reduction is increasing worldwide, and aluminum intake manifolds, which have been used previously as part of engine weight reduction in heavy metal materials, have been replaced with plastic materials due to the acceleration of engine weight reduction. Has been applied.

Plastic materials are light in weight, are advantageous in cost reduction, can reduce flow noise, can be made into complex shapes while shortening the processing process, and have high recyclability, so they can respond favorably to global demand for weight reduction and cost reduction compared to conventional metal materials.

The intake manifold consists of left and right runners to lead to the combustion chambers formed in both left and right sides of the engine cylinder, and the mixture of external air introduced through the air cleaner and the fuel introduced through the throttle body flows into the combustion chamber. It performs the function of operating.

Recently, automobile intake manifolds are made of plastics due to advantages in cost and weight over conventional aluminum materials. As the intake manifold is made of plastic, the construction method has also been changed from a conventional gravity casting method to a method of applying a vibration welding method after plastic injection.

The vibration welding method is a method of bonding the divided cells of an intake manifold composed of 3-4 unit pieces to each other. The heat generated by rubbing each plastic cell is a method of melting and bonding the plastic for a certain period of time.

The intake manifold is not a single component, but is individually manufactured as at least three or more unit pieces, and then manufactured by a vibration welding method, and then combined via a surge part and a bolt assembly.

When the unit pieces are fused to each other by a vibration welding method, it is difficult to accurately manage tolerances due to differences in dimensions. In this case, when the bolt assembly for assembling the intake manifold and the surge part in close contact with each other is coupled, the axial direction is shifted or the phenomenon of loosening after the coupling occurs, and thus a countermeasure is required.

Japanese registered patent JP 3990650 (July 27, 2007)

Embodiments of the present invention are to provide a mounting device for an intake manifold in which dimensional stability and coupling stability are maintained by combining a plurality of unit surge parts through a unit boss for stable coupling of an intake manifold.

The mounting apparatus for an intake manifold according to an embodiment of the present invention includes a boss part 110 extending from a lower surface to an upper surface of a surge part 100; And a coupling member 200 inserted into the inside of the boss part 110 so that the coupling object 10 is coupled to the lower surface of the surge part 100.

The surge part 100 may include a first unit surge part 102 having an external shape with a predetermined size; A second unit surge part 104 fused to a lower side of the first unit surge part; And a third unit surge part 106 fused to the lower side of the second unit surge part 104 and in close contact with the upper surface of the coupling object 10, and the boss part 110 It is formed integrally with the part 106 and extends to the upper surface of the first unit surge part 102.

The third unit surge part 106 has a first protrusion 106a protruding upward to be fused to the lower surface of the second unit surge part 104, and the second unit surge part 104 is A first mounting groove 104a into which the first protrusion 106a is inserted is formed on a mating surface facing the first protrusion 106a, and the upper surface is fused to the lower surface of the first unit surge part 102 A second protrusion 104b protruding upward is formed in order to be formed, and the second protrusion 104b is inserted into a mating surface facing the second protrusion 104b on the lower surface of the first unit surge part 102 The second seating groove 102a is formed, and the boss portion 110 passes through the first to second protrusions 106a and 104b and the first seating groove 104a to the second seating groove 102a. Is extended.

The third unit surge part 106 has a support rib 106b that surrounds the boss part 110 from the outside, and the support rib 106b faces upward from the lower side of the third support part 106a. Is extended.

The coupling object 10 is characterized in that any one selected from an In Mani Part or a cylinder head.

The boss portion 110 includes a boss body 112 extending to a predetermined diameter (D) and length (L); And a first insertion hole 114 formed to insert the coupling member 200 into the boss body 112.

The boss part 110 is disposed between the runners 102b formed in the surge part 100.

The boss portion 110 is inserted into the first insertion hole 114, a boss guide 116 for supporting an axial force when the coupling member 200 is coupled is coupled, and the boss guide 116 It extends to a length corresponding to the length of the boss part 110.

The boss guide 116 is formed of a material different from that of the boss portion 110 and is forcibly pressed into the insertion hole 114.

The boss guide 116 is characterized in that a retainer 300 for preventing separation of the coupling member 200 is inserted.

A second insertion hole 12 is formed in the coupling object 10 at a position facing the first insertion hole 114, and the coupling member 200 is disposed above the surge part 100. A bolt is used that has an end coupled to the second insertion hole 12 via the insertion hole 114 to generate a tensile force in the axial direction toward the coupling object 10, and the coupling member 200 2 A thread 201 is formed on the outer circumferential surface with a length corresponding to the thread 11 formed in the insertion hole 12.

Embodiments of the present invention constitute an intake manifold and form a boss portion that can prevent loosening of a bolt coupled to a surge part so that the bolt can be accurately fastened, so that tolerance adjustment is stably maintained.

Embodiments of the present invention improve the convenience of processing by forming the boss part together when forming the surge part, and since a stable connection is achieved even when the boss is combined using a normal bolt without using an expensive bolt, the manufacturing cost can be lowered. have.

In the embodiments of the present invention, since the bolt coupled to the boss portion is not released, the coupling stability is improved, and temporary assembly is possible before the bolt is assembled to the boss portion, thereby improving the workability of the operator.

1 is a view showing an intake manifold and an in-mani part in which a mounting device for an intake manifold is installed according to an embodiment of the present invention.
2 is an exploded perspective view of a surge part coupled by a mounting device of an intake manifold according to an embodiment of the present invention.
3 is a vertical cross-sectional view showing a coupled state of a mounting device for an intake manifold according to an embodiment of the present invention.
4 is an enlarged view of part A of FIG. 3.
5 is an exploded perspective view showing the configuration of a mounting apparatus for an intake manifold according to an embodiment of the present invention.
6 is a perspective view showing a boss guide and a retainer of a mounting device for an intake manifold according to an embodiment of the present invention.
7 to 8 are vertical cross-sectional views showing steps before and after coupling of the mounting device of the intake manifold according to an embodiment of the present invention.
9 is a bottom perspective view showing a support rib according to an embodiment of the present invention.
10 is a perspective view showing a state in which a cylinder head is coupled by a mounting device of an intake manifold according to another embodiment of the present invention.

A mounting device for an intake manifold according to an embodiment of the present invention will be described with reference to the drawings. For reference, the coupling object 10 to be described later may be any one selected from an In Mani Part or a cylinder head (see FIG. 10), and is not particularly limited to a specific component.

In addition, although it has been described that the in-many part and the surge part are combined to aid understanding of the description, the surge part may be combined with other components other than the in-many part. For reference, FIG. 1 is a view showing an intake manifold and an in manifold in which a mounting device for an intake manifold according to an embodiment of the present invention is installed, and FIG. 2 is a mounting of an intake manifold according to an embodiment of the present invention. It is an exploded perspective view of a surge part coupled by the device, and FIG. 3 is a vertical cross-sectional view showing a coupled state of the mounting device of the intake manifold according to an embodiment of the present invention, and FIG. 4 is an enlarged view of part A of FIG. 3 .

1 to 4, the mounting apparatus of the intake manifold according to the present embodiment includes a boss part 110 extending from a lower surface to an upper surface of a surge part 100 and the surge part 100. It includes a coupling member 200 inserted into the inside of the boss portion 110 so that the coupling object 10 is coupled to the lower surface of the.

The surge part 100 includes a first unit surge part 102 forming an external shape with a predetermined size, a second unit surge part 104 fused to a lower side of the first unit surge part, and the second unit surge part. It includes a third unit surge part 106 fused to the lower side of the part 104 and in close contact with the upper surface of the bonding object 10.

The first unit surge part 102 corresponds to a configuration constituting an outer upper portion of the surge part 100 shown in the drawing, and the second unit surge part 104 is a lower side of the first unit surge part 102 It is in close contact with each other by vibrating welding method.

The upper surface of the third unit surge part 106 is coupled to each other through a vibration welding method on the lower surface of the second unit surge part 104.

Since the boss part 110 is integrally formed with the third unit surge part 106 and extends to the upper surface of the first unit surge part 102, the first to the second Since the unit surge parts 102 and 104 and the third unit surge parts 106 are coupled to each other by vibrating fusion, a dimensional deviation that may occur does not occur, so that accurate coupling is always possible.

The boss part 110 extends upward from the lower surface of the third unit surge part 106, and extends in length (L) and diameter (D) to the upper surface of the first unit surge part (102). It includes a boss body 112 and a first insertion hole 114 opened to the coupling object 10 so that the coupling member 200 is inserted into the boss body 112.

When the third unit surge part 106 is formed, the boss part 110 is formed together and extends upward, and the outer circumferential surface of the first and second unit surge parts 102 and 104 is in direct contact or non-contact. It can be configured in any one of the ways.

When the length according to the diameter (D) of the boss part 110 is excluded from the length according to the inner diameter of the first insertion hole 114, the thickness of the flesh in the radial direction is D/4 or D based on the diameter (D). It is formed in any one ratio selected from the ratio of /3.

The flesh thickness corresponds to a thickness for stably maintaining a coupled state without causing deformation or breakage due to stress generated in the axial direction after the coupling member 200 to be described later is inserted.

The boss part 110 is disposed between the runners 102b formed on the surge part 100 when viewed from the top, and the lower side extends toward the coupling object 10 when viewed from the side by cutting a cross section, The upper side extends to the upper side of the first unit surge part 102.

The reason why the boss part 110 is disposed between the runners 102b is the above-described in consideration of the structural strength and the location where the coupling member 200 is easy to install without disturbing the layout of the runner 102b as much as possible. Placed in a position.

In the third unit surge part 106 according to the present embodiment, a first protrusion 106a protruding upward to be fused to the lower surface of the second unit surge part 104 is formed, and the second unit surge part ( 104) has a first seating groove 104a into which the first protrusion 106a is inserted in a mating surface facing the first protrusion 106a on the lower surface thereof.

In this case, when vibration is applied after the first protrusion 106a is inserted into the first seating groove 104a, the contact surfaces are fused to each other, so that a stable coupling is achieved.

The second unit surge part 104 has a second protrusion 104b protruding upward to be fused to the lower surface of the first unit surge part 102 on an upper surface, and the first unit surge part 102 A second seating groove 102a into which the second protrusion 104b is inserted is formed on a counter surface facing the second protrusion 104b on the lower surface of the unit.

After the second protrusion 104b is inserted into the second seating groove 102a, the contact surfaces are fused to each other through a vibration welding method, so that a stable coupling is achieved.

The boss part 110 extends through the first to second protrusions 106a and 104b and the first and second seating grooves 104a to 102a.

The reason why the boss part 110 extends via the above-described position is that it corresponds to a structurally safe position while vibration fusion is performed at the position, and even when an external force is applied, deformation and stress concentration are prevented due to an increase in the contact area. This is because it corresponds to a location that can be minimized.

5 to 8, the boss portion 110 is inserted into the first insertion hole 114, the boss guide 116 for supporting the axial force when the coupling member 200 is coupled is coupled. In addition, the boss guide 116 extends to a length corresponding to the length of the boss portion 110.

The boss guide 116 is formed of a material different from that of the boss portion 110, and, for example, is made of either a metal or a non-metal material.

The boss guide 116 serves to prevent the coupling member 200 from directly contacting the inner circumferential surface of the boss portion 110, and stably applies an axial force applied in the axial direction after the coupling member 200 is inserted. It is provided to support.

Since the boss guide 116 is formed of, for example, a cylinder-shaped straight tube, when the coupling member 200 is inserted, it is possible to easily insert it, prevent deformation of the boss part 110, and even under high temperature conditions. The stability of the coupling member 200 coupled to the coupling object 10 is simultaneously achieved.

The boss guide 116 is coupled to the first insertion hole 114 by forced press fitting, so it is not separated or separated from the outside, so the insertion and coupling of the coupling member 200 even in a condition in which vibration occurs or a condition in which high temperature heat is transmitted. An accurate coupling relationship between the object 10 and the coupling member 200 can be maintained.

In addition, since the boss guide 116 is provided, the bolt used as the coupling member 200 can be combined with the coupling object 10 using a general bolt instead of an expensive special bolt, resulting in cost reduction. .

A retainer 300 for preventing separation of the coupling member 200 is inserted into the boss guide 116, and the retainer 300 is inserted into the upper inner side of the boss guide 116 based on the drawing.

The retainer 300 is formed in a ring shape, and a plurality of round portions 310 protruding roundly toward the inside in the radial direction along the inner circumferential direction are formed.

In the round part 310, when the coupling member 200 is inserted into the boss part 110, the protruding outer side of the round part 310 supports the outer circumferential surface of the coupling member 200 to support the boss part 110. It is possible to prevent a phenomenon in which the coupling member 200 is separated from the inner side to the outer side.

Although a bolt is used as an example for the coupling member 200, it may be changed to another component capable of stably coupling to the coupling object 10.

When the coupling member 200 is a bolt, when an operator inserts the bolt into the boss part 110 before coupling the bolt to the coupling object 10 in the field, the round part 310 is also moved to the assembly process. As a result, the inserted state of the bolt is stably maintained without being separated from the outside of the boss part 110.

In this case, the coupling member 200 is not separated from the plurality of boss portions 110 to the outside, so even if the assembly with the object 10 is not immediately assembled, it is not separated and the inserted state is maintained. .

In addition, delivery is possible in a state in which the coupling member 200 is previously inserted into the boss part 110.

Therefore, when assembling the coupling member 200, the operator can immediately assemble without inserting the plurality of coupling members 200 into the inside of the boss unit 110, so that the working speed is improved.

A second insertion hole 12 is formed in the coupling object 10 at a position facing the first insertion hole 114, and the coupling member 200 is disposed above the surge part 100. A bolt is used that has an end coupled to the second insertion hole 12 via the insertion hole 114 and generates a tensile force in the axial direction toward the coupling object 10.

The coupling member 200 has a thread 201 formed on the outer circumferential surface with a length corresponding to the thread 11 formed in the second insertion hole 12, rather than having the thread 201 formed in the entire section in the axial direction.

In this case, the thread 201 is not formed in the boss guide 116, and the thread 201 is formed only in the section that is coupled to the second insertion hole 12, so that the coupling member 200 is attached to the thread 11. The threads 201 of are stably coupled to each other.

Referring to FIG. 9, in the third unit surge part 106 according to the present embodiment, a support rib 106b surrounding the boss part 110 from the outside is formed on the lower outside.

The support rib 106b extends upward with a predetermined length from the lower surface of the third unit surge part 106 to secure structural rigidity.

That is, in the present embodiment, the fixing property in the third unit surge part 106 is maintained by the support rib 106b formed outside the boss part 110, and the first to second protrusions 106a and 104b And since it extends through the first mounting groove (104a) to the second mounting groove (102a), even when an external force is continuously transmitted, a problem due to cracking or deformation is not generated and is maintained.

Since the support rib 106b is formed on the lower surface of the third unit surge part 106, it is not affected by the vibration welding of the second to third unit surge parts 104, 106, and the boss part 110 is stably maintained. I can support it.

The coupling object according to the present embodiment may be installed on the cylinder head in addition to the above-described in-many part.

Referring to the accompanying FIG. 10, the coupling mass 10 according to the present embodiment may be a cylinder head as an example, in which case the coupling member 200 is shown in the drawing via the inner side of the boss part 110. Are combined as.

In this case, since the coupling object 10 is maintained in a stable coupling state by the boss portion 110 and the coupling member 200, even when an external force or vibration is transmitted, the occurrence of problems due to cracks or deformation is minimized.

As described above, one embodiment of the present invention has been described, but those of ordinary skill in the relevant technical field add, change, delete or add components within the scope not departing from the spirit of the present invention described in the claims. It will be possible to variously modify and change the present invention by means of the like, and it will be said that this is also included within the scope of the present invention.

10: object to be combined
100: surge part
102: first unit surge part
104: second unit surge part
106: 3rd unit surge part
110: boss
112: boss body
114: insertion hole
116: Boss Guide
200: coupling member

Claims (7)

A boss portion 110 extending from the lower surface of the surge part 100 to the upper surface; And
Mounting apparatus for an intake manifold including a coupling member 200 inserted into the inside of the boss portion 110 so that the coupling object 10 is coupled to the lower surface of the surge part 100. The method of claim 1,
The surge part 100 may include a first unit surge part 102 having an external shape with a predetermined size;
A second unit surge part 104 fused to a lower side of the first unit surge part;
And a third unit surge part 106 fused to the lower side of the second unit surge part 104 and in close contact with the upper surface of the combined object 10,
The boss part 110 is integrally formed with the third unit surge part 106 and extends to an upper surface of the first unit surge part 102. The method of claim 2,
The third unit surge part 106 has a first protrusion 106a protruding upward to be fused to the lower surface of the second unit surge part 104,
The second unit surge part 104 has a first mounting groove 104a in which the first protrusion 106a is inserted in a mating surface facing the first protrusion 106a on a lower surface thereof, and the first A second protrusion 104b protruding upward to be fused to the lower surface of the 1 unit surge part 102 is formed,
The first unit surge part 102 has a second seating groove 102a in which the second protrusion 104b is inserted into a mating surface facing the second protrusion 104b on a lower surface thereof,
The boss part 110 is a mounting device for an intake manifold extending through the first to second protrusions 106a and 104b and the first and second mounting grooves 104a to 102a. The method of claim 1,
The coupling object 10 is a mounting device for an intake manifold, characterized in that any one selected from an In Mani Part (In Mani Part) or a cylinder head. The method of claim 1,
The boss portion 110 includes a boss body 112 extending to a predetermined diameter (D) and length (L);
Mounting apparatus for an intake manifold comprising a first insertion hole 114 formed to insert the coupling member 200 into the boss body 112. The method of claim 1,
The boss part 110 is a mounting device for an intake manifold disposed between the runners 102b formed on the surge part 100. The method of claim 5,
The boss portion 110 is inserted into the first insertion hole 114, a boss guide 116 for supporting an axial force when the coupling member 200 is coupled is coupled, and the boss guide 116 A mounting device for an intake manifold extending to a length corresponding to the length of the boss part 110.

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