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KR20040002252A - Noise reduction device of front cover - Google Patents

Noise reduction device of front cover Download PDF

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Publication number
KR20040002252A
KR20040002252A KR1020020037700A KR20020037700A KR20040002252A KR 20040002252 A KR20040002252 A KR 20040002252A KR 1020020037700 A KR1020020037700 A KR 1020020037700A KR 20020037700 A KR20020037700 A KR 20020037700A KR 20040002252 A KR20040002252 A KR 20040002252A
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KR
South Korea
Prior art keywords
front cover
noise
engine
blocking plate
oil
Prior art date
Application number
KR1020020037700A
Other languages
Korean (ko)
Inventor
홍순일
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020020037700A priority Critical patent/KR20040002252A/en
Publication of KR20040002252A publication Critical patent/KR20040002252A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20Corrugating; Corrugating combined with laminating to other layers
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30Multi-ply
    • D21H27/40Multi-ply at least one of the sheets being non-planar, e.g. crêped

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: A noise reducing device of a front cover is provided to collect scattered oil and oil steam in an engine to a lattice-shaped structure of a noise cut-off plate, form fluid film, and shut off the radiation of engine noise by mounting the noise cut-off plate of the dense lattice structure in the front cover and to reduce the weight of the front cover without adding a thick rib to the front cover or thickening the rib. CONSTITUTION: A noise reducing device of a front cover(1) mounted to the front of an engine combines a noise cut-off plate(10) having a dense lattice structure to collect and form oil steam and scattered oil in the engine into fluid film to the inside of the front cover. The noise cut-off plate is made by doubly combining first and second wire nets(11,12) having a dense lattice shape.

Description

프론트커버의 소음 저감장치{Noise reduction device of front cover}Noise reduction device of front cover

본 발명은 프론트커버의 소음저감장치에 관한 것으로서, 특히 프론트커버의 내측에 조밀한 격자구조를 가지는 소음차단플레이트를 장착하는 단순구조를 제공하여 엔진소음의 방사를 효과적으로 차단할 수 있도록 하고, 소음감소를 위해 프론트커버에 두꺼운 리브를 추가하거나 두께를 두껍게 증가시키지 않아도 되도록 하여프론트커버의 중량감소를 꾀할 수 있도록 한 프론트커버의 소음저감장치에 관한 것이다.The present invention relates to a noise reduction device of the front cover, and in particular, to provide a simple structure for mounting a noise blocking plate having a dense lattice structure inside the front cover to effectively block the emission of engine noise, noise reduction In order to reduce the weight of the front cover by adding a thick rib to the front cover or to increase the thickness thickly to the noise reduction device of the front cover.

일반적으로 자동차의 내연기관은 연료의 폭발, 부품의 마찰, 진동에 의해 소음 및 진동이 발생하게되고, 엔진의 출력 및 회전수가 증가함에 따라 그 발생되는 소음은 더욱 커지게 된다.In general, the internal combustion engine of a vehicle generates noise and vibration by fuel explosion, friction of parts, and vibration, and the generated noise increases as the output and rotation speed of the engine increase.

현재, 쾌적한 환경을 위한 소음규제가 점차 강화되어가고 있는 추세이므로 엔진 부품들의 소음을 감소시키는 기술의 중요성이 대두되어지고 있는 실정이다.At present, since the noise regulation for a comfortable environment is gradually being tightened, the importance of technology for reducing the noise of the engine parts is emerging.

엔진의 소음은 대부분 엔진 상측의 엔진커버와 엔진 전면의 프론트커버, 그리고 엔진 하측의 오일팬 등으로 방사되고 있다.Most of the engine noise is emitted by the engine cover on the upper side of the engine, the front cover on the front of the engine, and the oil pan under the engine.

따라서, 엔진 소음의 감소를 위해서 엔진커버, 프론트커버, 오일팬 등의 강성을 증가시키기 위하여 그 재질을 증가시켜 고강성의 재질로 변경하거나 두께를 증가시켜 엔진 소음을 감쇄시키고 있는 실정이다.Therefore, in order to reduce the engine noise, in order to increase the rigidity of the engine cover, the front cover, the oil pan, etc., the material is increased to a material of high rigidity or the thickness is increased to reduce the engine noise.

도 4 는 종래의 프론트커버를 도시한 것으로서,Figure 4 shows a conventional front cover,

엔진의 전면에 장착되는 프론트커버(1)의 상측 양단으로 체인커버(3)가 결합되어지고, 이 프론트커버(1)의 전면에는 두꺼운 리브(2)를 보강하여 프론트커버(1)의 강성을 보강하여 엔진소음의 방사율을 감소시키는 구조이다.The chain cover 3 is coupled to both upper ends of the front cover 1 mounted on the front of the engine, and the front cover 1 has a rigid rib 2 to reinforce the rigidity of the front cover 1. It is a structure that reduces the emissivity of engine noise by reinforcing.

그러나, 프론트커버에 두꺼운 리브를 형성하게되면 프론트커버의 전체적인 중량이 증대되어 엔진의 출력 및 연비에 악영향을 미치게 되고, 또한 부품의 크기가 증가함에 따라 엔진의 레이아웃 길이가 길어져 차량에 탑재하기가 어려워지는 문제점을 갖고 있었다.However, the formation of thick ribs on the front cover increases the overall weight of the front cover, which adversely affects the output and fuel efficiency of the engine. In addition, as the size of the components increases, the layout length of the engine becomes longer, making it difficult to mount on a vehicle. Losing had a problem.

또한 프론트커버의 강성을 증대시키기 위해 고강성의 재질을 사용하게되면 이때에도 프론트커버의 중량이 증대되어 엔진의 출력 및 연비에 악영향을 미치게되는 문제점이 발생하고 있었다.In addition, when a high rigidity material is used to increase the rigidity of the front cover, the weight of the front cover is also increased, thereby adversely affecting the output and fuel efficiency of the engine.

따라서, 상기 문제점을 해결하기 위한 본 발명은 프론트커버의 내측에 조밀한 격자구조를 가지는 소음차단플레이트를 장착하므로서, 엔진 내부의 비산오일 및 오일증기 등이 소음차단플레이트의 격자구조에 포집되어 유체막을 형성함에 따라 엔진소음의 방사를 차단할 수 있도록 하고, 프론트커버에 두꺼운 리브를 추가하거나 두께를 두껍게 증가시키지 않아도 되도록 하여 프론트커버의 중량감소를 꾀할 수 있도록 한 프론트커버의 소음저감장치를 제공함을 목적으로 한다.Therefore, the present invention for solving the above problems is equipped with a noise blocking plate having a dense lattice structure inside the front cover, the scattering oil and oil vapor inside the engine is trapped in the lattice structure of the noise blocking plate to cover the fluid film The purpose of the present invention is to provide a noise reduction device for the front cover to prevent the noise of the engine noise from being formed and to reduce the weight of the front cover by not adding a thick rib to the front cover or increasing the thickness of the front cover. do.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

엔진의 전면에 장착되는 프론트커버에 있어서,In the front cover mounted on the front of the engine,

엔진 내부의 오일증기와 비산된 오일이 포집되어 유체막을 형성할 수 있도록 조밀한 격자구조를 갖는 소음차단 플레이트를 프론트커버의 내측에 결합한 것을 특징으로 한다.It is characterized in that the noise blocking plate having a compact lattice structure is coupled to the inside of the front cover so that oil vapor and scattered oil inside the engine are collected to form a fluid film.

상기 소음차단플레이트는 밀도가 조밀한 격자를 갖는 제 1 및 제 2 철망을 이중으로 결합하여 구성하며,The noise blocking plate is composed of a double coupling of the first and second wire mesh having a dense lattice,

상기 소음차단플레이트의 양측면 가장자리에 일정두께의 러버를 형성하여 소음차단 플레이트의 장착시 소음차단플레이트와 프론트커버가 일정간극을 유지할 수 있도록 한 것을 특징으로 한다.By forming a rubber having a predetermined thickness on both side edges of the noise blocking plate, the noise blocking plate and the front cover may maintain a predetermined gap when the noise blocking plate is mounted.

도 1 은 본 발명의 프론트커버의 소음 저감장치를 보인 분해 사시도.1 is an exploded perspective view showing a noise reduction device of the front cover of the present invention.

도 2 는 본 발명의 소음 저감장치가 장착된 프론트커버의 내부를 보인 정면도.Figure 2 is a front view showing the inside of the front cover is equipped with a noise reduction device of the present invention.

도 3 은 본 발명의 소음 저감장치의 결합상태를 보인 단면도.Figure 3 is a cross-sectional view showing a combined state of the noise reduction device of the present invention.

도 4 는 종래의 프론트커버를 보인 사시도.Figure 4 is a perspective view of a conventional front cover.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 프론트커버 10 : 소음차단 플레이트1: Front cover 10: Noise blocking plate

11 : 제 1 철망 12 : 제 2 철망11: first wire mesh 12: second wire mesh

13 : 러버 14 : 볼트13: rubber 14: bolt

이하, 첨부된 도면 도 1 내지 도 3 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 3.

본 발명의 설명에 있어서 종래와 동일한 구성요소에 대해서는 동일부호 표기하여 중복설명을 피하기로 한다.In the description of the present invention, the same components as in the prior art will be denoted by the same reference numerals to avoid redundant description.

본 발명의 가장 큰 특징은 프론트커버(1)의 내측에 소음차단 플레이트(10)를 장착한 것이다.The biggest feature of the present invention is that the noise blocking plate 10 is mounted inside the front cover 1.

상기 소음차단 플레이트(10)는 도 1 에 도시된 바와같이 조밀한 격자를 갖는 제 1 철망(11)과 제 2 철망(12)을 이중으로 겹쳐 결합하고, 결합된 소음차단 플레이트(10)의 양측면 가장자리에 일정두께의 러버(13)를 형성하여 구성한다.As shown in FIG. 1, the noise blocking plate 10 overlaps the first wire mesh 11 and the second wire mesh 12 having a dense lattice, and overlaps both sides of the noise blocking plate 10. The rubber 13 of constant thickness is formed in the edge and comprised.

소음차단 플레이트(10)의 결합은 도 3 에 도시된 바와같이 러버(13)가 프론트커버(1)의 바닥면에 밀착되도록 한 후 복수개소에 볼트(14)를 결합하여 소음차단플레이트(10)를 프론트커버(1)에 결합한다.As shown in FIG. 3, the noise blocking plate 10 may be coupled to the bottom surface of the front cover 1 by the rubber 13, and then the bolts 14 may be coupled to a plurality of places to prevent the noise blocking plate 10. To the front cover (1).

일반적으로 엔진 내부에는 항상 크랭크샤프트의 회전운동과 피스톤 및 컨넥팅로드의 왕복운동에 의해 블로바이가스 및 비산오일이 존재하게된다.In general, the blow-by gas and scattering oil are always present in the engine by the rotational movement of the crankshaft and the reciprocating movement of the piston and the connecting rod.

이러한 상태에서 프론트커버(1)의 내측으로 소음차단 플레이트(10)를 장착하게되면, 엔진내부의 오일증기와 비산오일이 상기 소음차단 플레이트(10)를 구성하는 제 1 철망(11)과 제 2 철망(12)의 격자 사이에 포집되면서 이중, 삼중으로 오일막과 공기막을 형성하게 된다.In this state, when the noise blocking plate 10 is installed inside the front cover 1, the oil vapor and scattering oil inside the engine constitute the noise blocking plate 10 and the first wire mesh 11 and the second. It is collected between the grids of the wire mesh 12 to form an oil film and an air film in double and triple.

상기와같이 철망(11,12)의 격자에 이중, 삼중으로 오일막과 공기막이 형성되면, 엔진 내부에서 발생되는 소음이 상기 오일막과 공기막에 부딪혀 차단되게 되고, 이에의해 엔진 내부에서 발생된 소음의 음원 파장은 프론트커버를 진동시키지 못하게되므로서 엔진 전방으로 방사되는 소음을 효과적으로 감쇄시킬 수 있게되는 것이다.As described above, when the oil film and the air film are formed in the lattice of the wire meshes 11 and 12 in double and triple layers, the noise generated inside the engine is blocked by the oil film and the air film, and thus the noise generated inside the engine The sound source wavelength of the can not vibrate the front cover, which will effectively reduce the noise emitted to the front of the engine.

또한, 엔진 내부에서 발생하는 블로우바이 가스에 포함된 오일이 상기 제 1 및 제 2 철망(11,12)에 걸러지게되므로서 본 발명의 소음차단 플레이트(10)가 1차 오일세퍼레이터 역할을 하게되어 엔진 흡기관으로 흡입되어 연소되는 오일의 양을 줄일 수 있고, 이에의해 오일 소모량을 감소시킬 수 있게된다.In addition, since the oil contained in the blow-by gas generated inside the engine is filtered by the first and second wire meshes 11 and 12, the noise blocking plate 10 of the present invention serves as a primary oil separator. It is possible to reduce the amount of oil sucked into the engine intake pipe and burned, thereby reducing the oil consumption.

상기와같이 소음차단 플레이트(10)가 오일을 1차적으로 걸러주는 기능에 의해 오일의 소모량을 감소시키고, 오일교환주기를 연장시키는 부가적인 효과를 기대할 수 있으며, 연소되는 오일의 양을 감소시킬 수 있으므로 배기가스의 발생량을 현저히 감소시킬 수 있는 것이다.As described above, the noise blocking plate 10 can be expected to have an additional effect of reducing oil consumption and extending an oil change cycle by filtering the oil primarily, and reducing the amount of oil burned. Therefore, the amount of generated exhaust gas can be significantly reduced.

이상에서 설명한 바와같이 본 발명은 프론트커버의 내측에 조밀한 격자구조를 가지는 소음차단플레이트를 장착하므로서, 엔진 내부의 비산오일 및 오일증기 등이 소음차단플레이트의 격자구조에 포집되어 유체막을 형성함에 따라 엔진소음의 방사를 차단할 수 있도록 하고, 프론트커버에 두꺼운 리브를 추가하거나 두께를 두껍게 증가시키지 않아도 되도록 하여 프론트커버의 중량감소를 꾀할 수 있도록 한 프론트커버의 소음저감장치를 제공하는 효과를 기대할 수 있다.As described above, the present invention is equipped with a noise blocking plate having a dense lattice structure inside the front cover, so that fugitive oil and oil vapor inside the engine are collected in the lattice structure of the noise blocking plate to form a fluid film. It can be expected to provide a noise reduction device for the front cover that prevents the emission of engine noise and reduces the weight of the front cover by not adding thick ribs or increasing the thickness of the front cover. .

Claims (3)

엔진의 전면에 장착되는 프론트커버에 있어서,In the front cover mounted on the front of the engine, 엔진 내부의 오일증기와 비산된 오일이 포집되어 유체막을 형성할 수 있도록 조밀한 격자구조를 갖는 소음차단 플레이트를 프론트커버의 내측에 결합한 것을 특징으로 하는 프론트커버의 소음저감장치.The noise reduction device of the front cover, characterized in that the noise blocking plate having a compact lattice structure coupled to the inside of the front cover so that the oil vapor and scattered oil inside the engine can be collected to form a fluid film. 제 1 항에 있어서, 상기 소음차단플레이트는 밀도가 조밀한 격자를 갖는 제 1 및 제 2 철망을 이중으로 결합하여 구성한 것을 특징으로 하는 프론트커버의 소음저감장치.The noise reduction device of claim 1, wherein the noise blocking plate comprises a double combination of first and second wire meshes having a dense lattice. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 소음차단플레이트의 양측면 가장자리에 일정두께의 러버를 형성하여 소음차단 플레이트의 장착시 소음차단플레이트와 프론트커버가 일정간극을 유지할 수 있도록 한 것을 특징으로 하는 프론트커버의 소음저감장치.Noise reduction device of the front cover, characterized in that by forming a rubber of a certain thickness on both side edges of the noise blocking plate to maintain a predetermined gap between the noise blocking plate and the front cover when the noise blocking plate is mounted.
KR1020020037700A 2002-06-29 2002-06-29 Noise reduction device of front cover KR20040002252A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156125U (en) * 1982-04-15 1983-10-18 日産自動車株式会社 sound insulation board
JPS6125921A (en) * 1984-07-16 1986-02-05 Honda Motor Co Ltd Engine operated working machine of sound shield type
JPH07119458A (en) * 1993-09-03 1995-05-09 Ibiden Co Ltd Sound insulating thermal insulation plate for exhaust manifold
JPH08198660A (en) * 1995-01-19 1996-08-06 Ibiden Co Ltd Acoustical and heat insulating plate mounted on car
KR970043650U (en) * 1995-12-19 1997-07-31 Engine front cover
KR19980038316U (en) * 1996-12-19 1998-09-15 박병재 Engine noise blocking cover of vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156125U (en) * 1982-04-15 1983-10-18 日産自動車株式会社 sound insulation board
JPS6125921A (en) * 1984-07-16 1986-02-05 Honda Motor Co Ltd Engine operated working machine of sound shield type
JPH07119458A (en) * 1993-09-03 1995-05-09 Ibiden Co Ltd Sound insulating thermal insulation plate for exhaust manifold
JPH08198660A (en) * 1995-01-19 1996-08-06 Ibiden Co Ltd Acoustical and heat insulating plate mounted on car
KR970043650U (en) * 1995-12-19 1997-07-31 Engine front cover
KR19980038316U (en) * 1996-12-19 1998-09-15 박병재 Engine noise blocking cover of vehicle

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