KR101510322B1 - Resonator for vehicle - Google Patents

Resonator for vehicle Download PDF

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Publication number
KR101510322B1
KR101510322B1 KR20090080789A KR20090080789A KR101510322B1 KR 101510322 B1 KR101510322 B1 KR 101510322B1 KR 20090080789 A KR20090080789 A KR 20090080789A KR 20090080789 A KR20090080789 A KR 20090080789A KR 101510322 B1 KR101510322 B1 KR 101510322B1
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KR
South Korea
Prior art keywords
resonator
intake
air
noise
body portion
Prior art date
Application number
KR20090080789A
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Korean (ko)
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KR20110023156A (en
Inventor
장영학
Original Assignee
현대자동차 주식회사
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Priority to KR20090080789A priority Critical patent/KR101510322B1/en
Publication of KR20110023156A publication Critical patent/KR20110023156A/en
Application granted granted Critical
Publication of KR101510322B1 publication Critical patent/KR101510322B1/en

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Abstract

A resonator for a vehicle according to an exemplary embodiment of the present invention is configured to be connected to an air intake hose of an automobile intake system to reduce intake air noise of a specific frequency. The resonator includes: i) a resonator body portion And ii) a neck portion formed in the resonator body portion and connected to the air intake hose, and iii) a porous member having porous holes and disposed on an inner surface of the neck portion.
Intake system, resonator, neck, resonance, porous, hole, mesh

Description

[0001] RESONATOR FOR VEHICLE [0002]

An exemplary embodiment of the present invention relates to an intake system for an automobile, and more particularly, to a vehicular resonator for reducing intake air discharge noise at a specific frequency.

As is known, an automobile engine, which is a typical example of an internal combustion engine, forms a negative pressure by repetitive action of a piston ascending and descending in a cylinder to suck outside air, inject fuel into a combustion chamber in which air is sucked, And then ignites it to drive the engine.

Here, the intake air flows through the intake system by opening the intake valve when the piston descends for the intake stroke.

The conventional intake system includes an air cleaner for filtering the intake air flowing through the throttle body and an air intake hose provided between the air cleaner and the intake manifold in which the intake port is formed to guide the intake air passing through the air cleaner .

With such a configuration, the intake air flowing into the intake manifold is expanded and compressed by the opening and closing action of the intake valve due to the rotation of the engine, so that the intake air pulsation occurs, and the intake noise is generated due to such intake air pulsation, In particular, the intake noise is amplified through the space in the vehicle body or the vehicle room to generate a resonance noise.

In order to reduce the intake noise, the conventional intake system includes a resonator 110 for reducing intake air noise at a specific frequency as shown in FIG.

The resonator 110 is connected to an air intake hose (not shown) to attenuate a discharge noise of a specific frequency. The resonator 110 includes a resonator body 111 having a predetermined volume, And a neck portion 113 formed to communicate with an air intake hose (not shown).

Here, the neck portion 113 connecting the resonator body 111 and the air intake hose (not shown) forms a single hole 115.

As a result of evaluating the discharge port negative pressure and the insertion loss of the conventional resonator 110, the resonator 110 indicated by the dotted line and the one-dot chain line, when compared with the comparative example shown by the solid line as shown in FIG. 4, Side effect occurs at the "A " portion, and only one peak frequency is attenuated.

That is, in the conventional art, only one specific frequency peak point is attenuated, and the amount of attenuation is shifted to another frequency to generate a side effect in another frequency section.

Therefore, the conventional art has a problem that a single peak point frequency is attenuated and a side effect is exerted on other frequency bands, so that a broad noise effect can not be exhibited in a certain region.

An exemplary embodiment of the present invention has been made to overcome the above-described problems, and it is an object of the present invention to provide an air-intake noise reducing apparatus which can attenuate two or more peak point frequencies in an intake noise reducing performance, A resonator for an automobile which can exhibit a broad noise effect is provided.

To this end, the automotive resonator according to the exemplary embodiment of the present invention is configured to be connected to an air intake hose of an automobile intake system to reduce intake air discharge noise of a specific frequency. The resonator includes: i) a resonator A neck portion formed on the resonator body portion and connected to the air intake hose; and iii) a porous member having porous holes and disposed on an inner surface of the neck portion. do.

In the automotive resonator, it is preferable that the porous member is formed as a mesh.

According to the exemplary embodiments of the present invention as described above, two or more peak point frequencies can be attenuated, and a broad noise effect is exhibited in a certain section without adversely affecting other frequency sections. Therefore, It is possible to further improve the intake noise reduction performance and to improve the linearity of the intake noise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a view showing a resonator for a vehicle according to an exemplary embodiment of the present invention.

Referring to the drawings, an automotive resonator 100 according to an exemplary embodiment of the present invention includes an air cleaner 1 for filtering intake air flowing through a throttle body, an air cleaner 1 and an intake manifold And an air intake hose 3 provided between the air cleaner 1 and the air cleaner 1 for guiding intake air passing through the air cleaner 1.

The resonator 100 is configured to be connected to the air intake hose 3 so as to reduce intake air noise at a specific frequency. The resonator 100 can improve the intake noise reduction performance and increase the linearity of the intake noise. .

That is, the resonator 100 can attenuate two or more peak frequency frequencies in the intake noise reduction performance, and can generate a broad band in a certain section without giving a side effect to another frequency section. As a structure capable of exhibiting a noise effect.

To this end, the resonator 100 according to the present embodiment basically comprises a resonator body 10, a neck portion 30 formed on the resonator body 10, And a porous member 50, which will be described below.

In the above, the resonator body portion 10 is formed as a housing having a predetermined volume.

The neck portion 30 is provided at one side of the resonator body portion 10 so as to communicate with the inside of the body portion 10 and to be interconnected with the air intake hose 3. [

In this embodiment, the porous member 50 is in the form of a mesh of 175 Hz band having holes 51 of porous shape, and is installed substantially fixed to the inner surface of the neck portion 30. [

In this case, the porous member 50 is formed in the shape of a circular plate in which porous holes 51 are formed, and each hole 51 has a diameter of 3φ, and the inner member of the neck member 30 has an interference fit- (Not shown) or mounted in a separate mounting groove (not shown).

Therefore, according to the automotive resonator 100 according to the exemplary embodiment of the present invention configured as described above, the noise attenuation curve of the comparative example (without the resonator) indicated by the solid line in FIG. 2 in the intake noise reduction performance And the noise attenuation curve of the present embodiment indicated by the dotted line, it is possible to attenuate two or more peak point frequencies in the comparative example, It is possible to exhibit a broad noise effect.

That is, in the present embodiment, it is possible to reduce the intake air discharge noise of about 5 dB at 3500 rpm and attenuate the intake air discharge noise of about 2.3 dB at 6000 rpm, as compared with the noise damping performance of the comparative example.

Thus, in this embodiment, the intake noise reduction performance can be further improved and the linearity of the intake noise (dot-dash line in FIG. 2) can be increased as compared with the conventional art.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.

1 is a view showing a resonator for a vehicle according to an exemplary embodiment of the present invention.

2 is a graph showing noise reduction performance of a resonator for a vehicle according to an exemplary embodiment of the present invention.

3 is a view showing a conventional automotive resonator.

4 is a graph showing a result of evaluating the negative pressure of the discharge port and the insertion loss of the resonator of the automobile according to the prior art.

Claims (2)

  1. A resonator connected to an air intake hose (3) of an intake system for an automobile to reduce an intake air discharge noise of a specific frequency,
    A resonator body portion 10 having a predetermined volume;
    A neck portion 30 formed on the resonator body portion 10 and connected to the air intake hose 3; And
    And a porous member (50) having porous holes (51) and provided on an inner surface of the neck portion (30)
    The neck portion 30 is provided at one side of the resonator body portion 10 and communicates with the interior of the resonator body portion 10 and is interconnected with the air intake hose 3,
    Characterized in that the porous member (50) is in the form of a mesh of 175 Hz band with the holes (51).
  2. delete
KR20090080789A 2009-08-28 2009-08-28 Resonator for vehicle KR101510322B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20090080789A KR101510322B1 (en) 2009-08-28 2009-08-28 Resonator for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20090080789A KR101510322B1 (en) 2009-08-28 2009-08-28 Resonator for vehicle

Publications (2)

Publication Number Publication Date
KR20110023156A KR20110023156A (en) 2011-03-08
KR101510322B1 true KR101510322B1 (en) 2015-04-06

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Application Number Title Priority Date Filing Date
KR20090080789A KR101510322B1 (en) 2009-08-28 2009-08-28 Resonator for vehicle

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101597219B1 (en) 2015-03-02 2016-02-24 말레동현필터시스템 주식회사 Resonator for vehicle
CN106121881A (en) * 2016-07-29 2016-11-16 重庆长安汽车股份有限公司 High frequency acoustic filter in vehicle intercooler air inlet pipe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279664A (en) * 1990-03-27 1991-12-10 Suzuki Motor Corp Intake device for engine
JP2002155817A (en) * 2000-11-21 2002-05-31 Toyota Motor Corp Intake noise reducing member mounting structure for internal combustion engine
JP2002364473A (en) 2001-03-21 2002-12-18 Daimlerchrysler Ag Device for noise configuration for automobile
JP2006276778A (en) * 2005-03-30 2006-10-12 Toyoda Gosei Co Ltd Air intake duct

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279664A (en) * 1990-03-27 1991-12-10 Suzuki Motor Corp Intake device for engine
JP2002155817A (en) * 2000-11-21 2002-05-31 Toyota Motor Corp Intake noise reducing member mounting structure for internal combustion engine
JP2002364473A (en) 2001-03-21 2002-12-18 Daimlerchrysler Ag Device for noise configuration for automobile
JP2006276778A (en) * 2005-03-30 2006-10-12 Toyoda Gosei Co Ltd Air intake duct

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KR20110023156A (en) 2011-03-08

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