CN210889161U - Mounting structure for internal combustion engine - Google Patents

Abstract

The utility model provides a mounting structure of internal-combustion engine can reduce the produced radiation sound of intake manifold, and then reduces the sound leakage that spreads from the clearance of internal-combustion engine. The internal combustion engine includes an intake manifold and a chamber disposed adjacent to each other, and the mounting structure of the internal combustion engine includes: an internal sound absorbing material mounted inside the intake manifold; and an external sound absorbing material attached to an outer side of the intake manifold, wherein the external sound absorbing material attached to the outer side of the intake manifold is sandwiched between the intake manifold and the chamber.

Description

Mounting structure for internal combustion engine

Technical Field

The utility model relates to a mounting structure of internal-combustion engine.

Background

In internal combustion engines for automobiles, it is well known that the internal combustion engine generally includes a Positive Crankcase Ventilation (PCV) chamber, a Ventilation chamber, an intake manifold (intakemanifold), a throttle valve, a turbine, an air cleaner (air cleaner), and the like, and a plurality of passages connecting the members. When the internal combustion engine is operating, the intake manifold generates a radiated sound, and a leakage sound is transmitted from a gap of the internal combustion engine. Therefore, solving the problem of sound leakage of the internal combustion engine is one of the problems that needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mounting structure of internal-combustion engine can reduce the produced radiation sound of intake manifold, and then reduces the sound leakage that spreads from the clearance of internal-combustion engine.

The utility model provides a mounting structure of internal-combustion engine, the internal-combustion engine includes the intake manifold and the cavity of adjacent configuration, mounting structure of internal-combustion engine includes: an internal sound absorbing material mounted inside the intake manifold; and an external sound absorbing material attached to an outer side of the intake manifold, wherein the external sound absorbing material attached to the outer side of the intake manifold is sandwiched between the intake manifold and the chamber.

In an embodiment of the present invention, the intake manifold has an insertion portion extending inward, the internal sound absorbing material has an insertion opening, and the intake manifold and the internal sound absorbing material are attached to each other by inserting the insertion portion into the insertion opening.

In an embodiment of the present invention, the intake manifold has an insertion portion extending outward, the external sound absorbing material has an insertion opening, and the intake manifold and the external sound absorbing material are attached to each other by inserting the insertion portion into the insertion opening.

In an embodiment of the present invention, the insertion portion of the intake manifold extending outward has a triangular insertion end.

In an embodiment of the present invention, the chamber is an air cleaner.

In an embodiment of the present invention, a thickness of the external sound absorbing material varies corresponding to a width of a gap between the intake manifold and the chamber.

Based on the above, in the utility model discloses an among the mounting structure of internal-combustion engine, the inboard at the intake manifold is installed to the interior sound-absorbing material, the outside at the intake manifold is installed to the outer sound-absorbing material centre gripping, so interior sound-absorbing material and outer sound-absorbing material can inhale the sound and reduce the produced vibrations of intake manifold from the inboard and the outside of intake manifold to the radiated sound that the intake manifold produced, and outer sound-absorbing material can centre gripping between intake manifold and cavity and omit the setting of fixed point, and then the outside of intake manifold can reduce the production of radiated sound through the outer sound-absorbing material and the dual structure of cavity. Therefore, the utility model discloses a mounting structure of internal-combustion engine can reduce the produced radiated sound of intake manifold, and then reduces the sound leakage that spreads from the clearance of internal-combustion engine.

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a perspective view of a mounting structure of an internal combustion engine according to the present invention;

FIG. 2 is a schematic sectional view of the mounting structure of the internal combustion engine according to FIG. 1 taken along line A-A;

fig. 3 is a schematic sectional view of the mounting structure of the internal combustion engine according to fig. 1 along the line B-B in the area C.

Description of reference numerals:

100: an internal combustion engine;

110: an intake manifold;

112. 114: an insertion portion;

120: a chamber;

130: an internal sound absorbing material;

132. 142: an insertion opening;

140: an external sound absorbing material;

c: an area;

d1, d 2: and (4) thickness.

Detailed Description

Fig. 1 is a perspective view of a mounting structure of an internal combustion engine according to the present invention. Fig. 2 is a schematic sectional view of the mounting structure of the internal combustion engine according to fig. 1 taken along the line a-a. Referring to fig. 1 and 2, in the present embodiment, the internal combustion engine 100 includes an intake manifold 110 and an air cleaner as a chamber 120, and further includes not shown components such as a positive crankcase ventilation chamber, a throttle valve, a turbine, and a plurality of channels connecting the components, wherein the intake manifold 110 and the air cleaner as the chamber 120 are disposed adjacent to each other as shown in fig. 2, and the mounting structure of the internal combustion engine 100 includes an inner sound absorbing material 130 and an outer sound absorbing material 140 as shown in fig. 1 and 2, but the present invention is not limited to the specific components of the internal combustion engine 100, and can be adjusted according to the requirements.

Specifically, fig. 1 shows relative positions of the intake manifold 110, the inner sound absorbing material 130, and the outer sound absorbing material 140, and the air cleaner as the cavity 120 is omitted, and fig. 2 shows relative positions of the intake manifold 110, the air cleaner as the cavity 120, the inner sound absorbing material 130, and the outer sound absorbing material 140. To make the drawings clearer, fig. 1 and 2 show outlines of the inner sound absorbing material 130 and the outer sound absorbing material 140 with thick lines, and the air cleaner as the chamber 120 is omitted from fig. 1 to show a state that the inner sound absorbing material 130 and the outer sound absorbing material 140 cover the intake manifold 110, while fig. 2 further shows a state that the outer sound absorbing material 140 is sandwiched between the intake manifold 110 and the air cleaner as the chamber 120, but the present invention is not limited thereto. In the mounting structure of the internal combustion engine 100 according to the present embodiment, the inner sound absorbing material 130 is mounted inside the intake manifold 110, and the outer sound absorbing material 140 is mounted outside the intake manifold 110, so that the inner and outer sides of the intake manifold 110 are covered with the inner sound absorbing material 130 and the outer sound absorbing material 140, and vibration is reduced and a sound absorbing effect is obtained.

In the mounting structure of the internal combustion engine 100 according to the present embodiment, it is preferable that the inner sound absorbing material 130 and the outer sound absorbing material 140 cover the whole intake manifold 110 from the inside and the outside, respectively, in addition to the connection structure such as the pipe extending outward from the intake manifold 110, so that vibration is reduced and a good sound absorbing effect is obtained. The inner sound absorbing material 130 and the outer sound absorbing material 140 are, for example, covers made of polyurethane (urethane) material, and are further installed on the inner side and the outer side of the intake manifold 110 as described later. However, the present invention is not limited to the material, shape and coverage of the inner sound absorbing material 130 and the outer sound absorbing material 140, and can be adjusted according to the requirement.

In the mounting structure of the internal combustion engine 100 according to the present embodiment, the external sound absorbing material 140 mounted on the outside of the intake manifold 110 is sandwiched between the intake manifold 110 and the air cleaner serving as the chamber 120. Further, after the inner sound absorbing material 130 and the outer sound absorbing material 140 are installed inside and outside the intake manifold 110 as described later, the assembly shown in fig. 1 is installed with an air cleaner as the chamber 120. In this way, the outer sound absorbing member 140 is sandwiched between the intake manifold 110 and the air cleaner as the chamber 120, and the outer sound absorbing member 140 can be secured to the intake manifold without providing a fixing point.

Further, in the mounting structure of the internal combustion engine 100 of the present embodiment, the thickness of the outer sound absorbing material 140 varies according to the width of the gap between the intake manifold 110 and the air cleaner as the chamber 120, and the thicknesses d1 and d2 are different as shown in fig. 2, whereas the thicknesses d1 and d2 of the outer sound absorbing material 140 both vary according to the width of the gap between the intake manifold 110 and the air cleaner as the chamber 120. Thus, the outer sound absorbing member 140 can be tightly held between the intake manifold 110 and the air cleaner as the chamber 120, and excellent sound absorbing effect and fixing effect can be obtained. However, the present invention is not limited to the size of the external sound absorbing material 140, and it can be adjusted according to the requirement.

Fig. 3 is a schematic sectional view of the mounting structure of the internal combustion engine according to fig. 1 along the line B-B in the area C. In order to make the drawings clearer, fig. 3 shows the outlines of the inner sound absorbing material 130 and the outer sound absorbing material 140 by thick lines to show that the inner sound absorbing material 130 and the outer sound absorbing material 140 cover the intake manifold 110, but the present invention is not limited thereto. Referring to fig. 1 and 3, in the present embodiment, the inner sound absorbing material 130 and the outer sound absorbing material 140 are installed inside and outside the intake manifold 110 in the following manner. First, the intake manifold 110 has an insertion portion 112 extending inward, the inner sound absorbing material 130 has an insertion port 132, and the intake manifold 110 and the inner sound absorbing material 130 are attached to each other by inserting the insertion portion 112 into the insertion port 132. The intake manifold 110 has another insertion portion 114 extending outward, the external sound absorbing material 140 has an insertion port 142, and the intake manifold 110 and the external sound absorbing material 140 are attached by inserting the insertion portion 114 into the insertion port 142. Thus, the inner sound absorbing material 130 and the outer sound absorbing material 140 can be attached to the inside and the outside of the intake manifold 110, respectively, as described above.

Further, in the mounting structure of the internal combustion engine 100 according to the present embodiment, the insertion portion 112 of the intake manifold 110 extending inward has an arc-shaped insertion end. When the internal sound absorbing material 130 is attached to the inside of the intake manifold 110, the insertion portion 112 of the intake manifold 110, which extends from the inside, is inserted into the insertion port 132 of the internal sound absorbing material 130, and the insertion portion 112 is inserted into the insertion port 132 with an arc-shaped insertion end and then interferes with the insertion port 132, so that the intake manifold 110 and the internal sound absorbing material 130 are fixed to each other.

On the other hand, in the mounting structure of the internal combustion engine 100 according to the present embodiment, the other insertion portion 114 of the intake manifold 110 extending outward has a triangular insertion end. When the external sound absorbing material 140 is mounted outside the intake manifold 110, the other insertion portion 114 of the intake manifold 110, which extends to the outside, is inserted into the insertion port 142 of the external sound absorbing material 140, and the insertion portion 114 is inserted into the insertion port 142 with a triangular insertion end and then interferes with the insertion port 142, so that the intake manifold 110 and the external sound absorbing material 140 are fixed to each other.

In the mounting structure of the internal combustion engine 100 according to the present embodiment, since the other insertion portion 114 of the intake manifold 110 extending outward has the triangular insertion end, when the external sound absorbing material 140 is mounted outside the intake manifold 110 (for example, when the external sound absorbing material 140 is mounted on the intake manifold 110 from above to below in the view shown in fig. 3), the insertion portion 114 can be easily aligned to the insertion port 142 by the tip of the insertion end, and can be easily inserted into the insertion port 142 by the pair of inclined surfaces of the insertion end, so that the external sound absorbing material 140 can be easily mounted outside the intake manifold 110 by one hand by an operator, and the number of steps required for mounting can be reduced.

Although this embodiment has been described with the case where the insertion portion 112 extending inward has an arc-shaped insertion end and the insertion portion 114 extending outward has a triangular insertion end, in other embodiments, not shown, the insertion portion 112 extending inward may have a triangular insertion end and the insertion portion 114 extending outward may have an arc-shaped insertion end, or the insertion portion 112 extending inward and the insertion portion 114 extending outward may have both a triangular insertion end and an arc-shaped insertion end, or may have other shapes.

To sum up, in the utility model discloses an in the mounting structure of internal-combustion engine, the inboard at the intake manifold is installed to the interior sound-absorbing material, the outside at the intake manifold is installed to the outer sound-absorbing material, and the outer sound-absorbing material centre gripping is between intake manifold and cavity, and then the thickness of the outer sound-absorbing material is corresponding to the width of the clearance between intake manifold and the air cleaner as the cavity and is changed, so the radiation sound that the internal-sound-absorbing material and outer sound-absorbing material can produce the intake manifold from the inboard and the outside of intake manifold inhales the sound and reduces the produced vibrations of intake manifold, and the setting of fixed point is omitted to the outer sound-absorbing material can centre gripping between intake manifold and cavity, the outside of intake manifold can reduce the production of radiation sound through the dual structure of outer sound-absorbing material and cavity, and then obtain good sound-absorbing effect and fixed effect. Further, since the insertion portion of the intake manifold has a triangular insertion end, the external sound absorbing material can be easily attached to the outside of the intake manifold by an operator with one hand, and the number of steps required for attachment can be reduced. Therefore, the utility model discloses a mounting structure of internal-combustion engine can reduce the produced radiated sound of intake manifold, and then reduces the sound leakage that spreads from the clearance of internal-combustion engine.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the embodiments of the present invention, and the essence of the corresponding technical solutions is not disclosed.

Claims (6)

1. A mounting structure of an internal combustion engine including an intake manifold and a chamber arranged adjacently, characterized by comprising:

an internal sound absorbing material mounted inside the intake manifold; and

an external sound absorbing material mounted on the outside of the intake manifold and

the outer sound absorbing material attached to the outer side of the intake manifold is sandwiched between the intake manifold and the chamber.

2. The mounting structure for an internal combustion engine according to claim 1, wherein the intake manifold has an insertion portion extending inward, the internal sound absorbing material has an insertion opening, and the intake manifold and the internal sound absorbing material are mounted by inserting the insertion portion into the insertion opening.

3. The mounting structure for an internal combustion engine according to claim 1, wherein the intake manifold has an insertion portion extending outward, the external sound absorbing material has an insertion opening, and the intake manifold and the external sound absorbing material are mounted by inserting the insertion portion into the insertion opening.

4. The mounting structure for an internal combustion engine according to claim 3, wherein the insertion portion of the intake manifold that extends outward has a triangular insertion end.

5. The mounting structure of an internal combustion engine according to claim 1, wherein the chamber is an air cleaner.

6. The mounting structure for an internal combustion engine according to claim 1, wherein a thickness of the outer sound absorbing material varies corresponding to a width of a gap between the intake manifold and the chamber.

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