KR19980043817A - Fluid-mounted engine mounts for cars - Google Patents

Fluid-mounted engine mounts for cars Download PDF

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Publication number
KR19980043817A
KR19980043817A KR1019960061796A KR19960061796A KR19980043817A KR 19980043817 A KR19980043817 A KR 19980043817A KR 1019960061796 A KR1019960061796 A KR 1019960061796A KR 19960061796 A KR19960061796 A KR 19960061796A KR 19980043817 A KR19980043817 A KR 19980043817A
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South Korea
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liquid
engine
fluid
chamber structure
chamber
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KR1019960061796A
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Korean (ko)
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이효상
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박병재
현대자동차 주식회사
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Priority to KR1019960061796A priority Critical patent/KR19980043817A/en
Publication of KR19980043817A publication Critical patent/KR19980043817A/en

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Abstract

본 발명은 자동차의 유체봉입식 엔진마운트에 관한 것으로, 엔진과 차체 사이에 고정되어 엔지으로 부터 발생된 진동이나 소음 등을 저감시키도록 된 유체봉입식 엔진마운트가 주액실구조물(5)에 부액실구조물(10)과 공기실구조물(14)을 순차적으로 압입시켜 제조됨으로써, 엔진의 고주파 미진폭의 진동이나, 저주파 대변위시에 각기 진동을 적절하게 감쇠시킴은 물론 제조공정도 단순화되어 제조가 용이해지는 효과가 있게 된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid enclosed engine mount of an automobile, wherein a fluid enclosed engine mount fixed between the engine and the vehicle body to reduce vibrations or noise generated from the engine is contained in the liquid-liquid chamber structure (5). By sequentially injecting the structure 10 and the air chamber structure 14, the vibrations of the high frequency non-amplitude of the engine or the low frequency large displacement are appropriately attenuated, respectively, and the manufacturing process is simplified to facilitate manufacturing. It will work.

Description

자동차의 유체봉입식 엔진마운트Fluid-mounted engine mounts for cars

본 발명은 자동차의 엔진을 탑재함에 있어 이를 지지하도록 사용되는 유체봉입식 엔진마운트에 관한 것으로, 보다 더 상세하게는 엔진의 동작중 이로부터 발생된 대/소변위의 진동을 효과적으로 감쇠시킴은 물론 제조도 용이한 자동차의 유체봉입식 엔진마운트에 관한 것이다.The present invention relates to a fluid-enclosed engine mount that is used to support an engine in a vehicle, and more particularly, effectively attenuates large / small displacement vibration generated therefrom during engine operation. The present invention also relates to a fluid-enclosed engine mount of a motor vehicle.

일반적으로 자동차의 엔진은 내부의 피스톤과 컨넥팅로드의 상하운동에 의한 중심위치의 주기적인 변화와, 실린더 축방향으로 생기는 왕복운동부분에서 발생되는 관성력, 커넥팅로드가 크랭크축의 좌우로 흔들림에 따라 발생되는 관성력 및, 크랭크축에 가해지는 회전력이 주기적인 변화에 따른 것등에 의해 동작중 진동과 소음이 유발된다.In general, the engine of a vehicle is generated by the periodic change of the center position due to the vertical movement of the piston and the connecting rod, the inertia force generated in the reciprocating part in the cylinder axial direction, and the connecting rod swinging from the left and right of the crankshaft. Vibration and noise are generated during operation due to the inertia force and the rotational force applied to the crankshaft due to the periodic change.

이에 따라 엔진은, 동작중 차체로 전달되는 진동을 최소화하거나, 엔진의 움직임을 제어하여 내구성을 향상시키기 위해 엔진에 다수개(통상 3내지 4곳)의 지점으로 적절한 스프링강성을 지닌 고무로 제작된 엔진마운트를 장착시켜 엔진룸내에 탑재되고 있다.Accordingly, the engine is made of rubber with appropriate spring stiffness at a number of points (usually 3 or 4 points) on the engine to minimize vibrations transmitted to the vehicle body during operation or to control the movement of the engine to improve durability. It is installed in the engine room by mounting the engine mount.

그런데, 상기와 같은 목적을 달성하기 위해 사용되는 엔진마운트중에서 부쉬타입의 엔진마운트는, 도 1에 도시된 바와 같이, 내측파이프(21)의 외주면에 고무재의 완충부재(22)가 고착되고, 이 완충부재(22)의 외주면에 외측파이프(23)가 고착되어 끼워지며, 이 외측파이프(23)에는 차체의 프레임에 결합되는 브라켓트(24)가 장착되어 있다.However, among the engine mounts used in order to achieve the above object, as shown in FIG. 1, the cushioning member 22 of rubber material is fixed to the outer circumferential surface of the inner pipe 21. The outer pipe 23 is fixedly fitted to the outer circumferential surface of the shock absorbing member 22, and the outer pipe 23 is equipped with a bracket 24 coupled to the frame of the vehicle body.

그리하여 상기와 같은 구조로 된 부쉬타입의 엔진마운트는, 상기 브라켓트(24)가 차체프레임에 결합되어 고정장착되고, 상기 내측파이프(21)로는 볼트와 같은 체결수단이 끼워져 엔진에 고정된 브라켓트(도시안됨)와 동시에 체결되어 설치된다.Thus, the bush type engine mount having the structure as described above, the bracket 24 is fixedly mounted by being coupled to the body frame, the inner pipe 21 is a bracket fixed to the engine by a fastening means such as bolts are fitted (not shown) No)) and is installed at the same time.

그러나 상기와 같은 부쉬타입의 엔진마운트는 엔진의 동작중 차체로 전달되는 대/소변위의 진동소음을 절연시킬 때 이를 전적으로 내측파이프(21)와 외측파이프(23) 사이에 개재된 완충부재(22)에만 의존하기 때문에, 고주파 미소변위시의 차량의 진동소음을 최소화시키기 위해 낮은 강성 및 낮은 감쇠력을 발휘하는 진동절연특성이나, 이와는 반대로 저주파 대변위의 진동에서 엔진쇽크를 억제시켜 엔진의 진동을 제어하여 내구성을 향상시키기 위한 높은 강성 및 높은 감쇠력을 발휘하는 특성과 같이 상반되는 진동절연의 특성을 모두 발휘할 수 없는 단점이 있었다.However, when the bush type engine mount as described above insulates the vibration noise of large / small displacement transmitted to the vehicle body during operation of the engine, the shock absorbing member 22 interposed between the inner pipe 21 and the outer pipe 23 is entirely used. Only the vibration isolation characteristics of low stiffness and low damping force in order to minimize the vibration noise of the vehicle in high frequency microdisplacement, on the contrary, control the engine vibration by suppressing the engine shank in the low frequency large displacement vibration. Therefore, there was a disadvantage in that it is not possible to exhibit all the characteristics of the opposing vibration insulation, such as the characteristics of high rigidity and high damping force to improve the durability.

이에 본 발명은 상기와 같은 단점을 해소하기 위해 안출된 것으로, 엔진의 동작중 이로부터 광범위한 영역에 걸쳐 발생되는 고주파 미진폭 또는 저주파 대변위시의 진동, 특히 축방향의 진동에서 이를 각기 적절하게 감쇠시킴은 물론 제조공정도 단순화시켜 제조가 용이하게 이루어질 수 있도록 된 자동차의 유체봉입식 엔진마운트를 제공함에 그 목적이 있다.Accordingly, the present invention has been devised to solve the above disadvantages, and attenuates it appropriately in vibrations during high frequency non-amplitude or low frequency large displacements, particularly in the axial vibration, which occur from a wide range of areas during operation of the engine. Of course, the object of the present invention is to provide a fluid-mounted engine mount of a vehicle that can be easily manufactured by simplifying the manufacturing process.

도 1은 종래 기술에 따른 부쉬타입의 엔진마운트의 단면도,1 is a cross-sectional view of a bush type engine mount according to the prior art,

도 2는 본 발명에 따른 유체봉입식 엔진마운트의 단면도이다.2 is a sectional view of a fluid-enclosed engine mount according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1-내측파이프2-외측파이프1-inner pipe 2-outer pipe

3-주고무살4-주액실3-jugi-free 4-injection chamber

5-주액실구조물6-강재판5-pouring chamber structure 6-steel plate

7-다이아프램8-오리피스7-diaphragm 8-orifice

9-부액실10-부액실구조물9-liquid chamber 10-liquid chamber structure

11-강재판12-고무링11-Steel Plate 12-Rubber Ring

13-공기실14-공기실구조물13-Air chamber 14-Air chamber structure

상기한 바의 목적을 달성하기 위한 본 발명은, 내측파이프와 외측파이프 사이에 가류되는 주고무살로 주액실이 형성되는 주액실구조물과, 이 주액실구조물내에 절곡된 강재판과 이의 선단에 가류접착된 다이아프램으로 오리피스 및 부액실이 형성되는 부액실구조물 및, 이 부액실구조물의 하부에 절곡된 강재판과 이의 선단에 가류 접착된 고무링으로 공기실이 형성되는 공기실구조물로 구성되어져, 제조시 상기 주액실구조물에 부액실구조물과 공기실구조물을 순차적으로 압입시켜 제조토록 된 것을 특징으로 한다.The present invention for achieving the above object, the liquid-liquid chamber structure in which the liquid injection chamber is formed with a lipless gas which is vulcanized between the inner pipe and the outer pipe, the steel plate bent in the liquid-liquid chamber structure and the vulcanization adhesion to the tip thereof Is composed of a liquid-liquid chamber structure in which an orifice and a liquid-liquid chamber are formed by the diaphragm formed therein, and an air chamber structure in which an air chamber is formed by a steel plate bent at the lower portion of the liquid-liquid chamber structure and a rubber ring vulcanized and glued to the tip thereof. When the liquid injection chamber structure and the liquid-liquid chamber structure and the air chamber structure in order to be indented sequentially.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 유체봉입식 엔진마운트의 단면도이다.2 is a sectional view of a fluid-enclosed engine mount according to the present invention.

본 발명은 도면에 도시된 바와 같이, 내측파이프(1)와 외측파이프(2)사이에 탄성에 있는 콘형상의 주고무살(3)을 가류시켜 주액실(4)을 형성하는 주액실구조물(5)을 구성하고, 이 주액실구조물(5)내에 강재판(6)을 절곡성형시키면서 일선단에 고무재의 다이아프램(7)을 가류접착하여 오리피스(8) 및 부액실(9)을 형성하는 부액실구조물(10)을 구성하며, 이 부액실구조물(10)의 하부에 대기연통구멍(11a)을 갖춘 강재판(11)을 절곡성형시키면서 일선단에 고무링(12)을 가류접착하여 공기실(13)을 형성하는 공기실구조물(14)을 구성하여 이루어진다.As shown in the figure, the liquid-liquid chamber structure (5) for forming a liquid-liquid chamber (4) by vulcanizing the cone-shaped high-density (3) elasticity between the inner pipe (1) and the outer pipe (2) The liquid-liquid chamber which forms the orifice 8 and the liquid-liquid chamber 9 by forming the orifice 8 and the liquid-liquid chamber 9 by vulcanizing and bonding the diaphragm 7 of rubber material at one end while bending-forming the steel plate 6 in this liquid-liquid chamber structure 5, The structure 10 is formed, and the rubber ring 12 is vulcanized and bonded to one end of the air chamber by bending the steel plate 11 having the atmospheric communication hole 11a at the lower portion of the liquid-liquid chamber structure 10. It consists of the air chamber structure 14 which forms 13).

또한 상기 주액실(4)과 오리피스(8) 사이와, 오리피스(8)와 부액실(9)사이에는 각각 연통구멍(15)이 형성되어 주액실(4)의 유체가 오리피스(8)를 거쳐 부액실(9)로 유동될 수 있도록 되어 있다.In addition, a communication hole 15 is formed between the injection chamber 4 and the orifice 8 and between the orifice 8 and the secondary liquid chamber 9 so that the fluid in the injection chamber 4 passes through the orifice 8. It is made to flow to the liquid-liquid chamber 9.

따라서 상기와 같은 주액실구조물(5)과 부액실구조물(10) 및 공기실구조물(14)로 구성된 본 발명의 유체봉입식 엔진마운트는, 대/소변위의 진동이 가해질 때에는 주액실(4)에 봉입된 유체가 오리피스(8)를 거쳐 부액실(9)로 유동되면서 감쇠력을 얻어 축방향의 진동을 절연시키거나 축방향의 진동을 제어할 수 있도록 되어 있다.Therefore, the fluid-filled engine mount of the present invention, which is composed of the above liquid injection chamber structure 5, the auxiliary liquid chamber structure 10, and the air chamber structure 14, has a liquid injection chamber 4 when large / small displacement vibration is applied. The fluid enclosed in the fluid flows through the orifice 8 into the subdivision chamber 9 to obtain a damping force to insulate the axial vibration or to control the axial vibration.

그리고 제조시에는 액중에서 상기 주액실구조물(5)에 부액실구조물(10)과 공기실구조물(14)을 순차적으로압입시키면 되므로 비교적 간단한 제조공법으로 유체봉입식 엔진마운트를 제작할 수 있게 된다.In the manufacturing process, the liquid-liquid chamber structure 10 and the air chamber structure 14 are sequentially pressurized into the liquid-liquid chamber structure 5 in the liquid, so that the fluid-mounted engine mount can be manufactured by a relatively simple manufacturing method.

이상 설명한 바와 같이 본 발명에 따른 자동차의 유체봉입식 엔진마운트에 의하면, 엔진의 하부와 차체사이에 고정되어 엔진으로부터 발생된 진동이나 소음등을 저감시키도록 된 유체봉입식 엔진마운트가 주액실구조물(5)에 부액실구조물(10)과 공기실구조물(14)을 순차적으로 압입시켜 제조됨으로써, 엔진의 고주파 미진폭의 진동이나, 저주파 대변위시에 각기 축방향의 진동을 적절하게 감쇠시킴은 물론 제조공정도 단순화되어 제조가 용이해 지는 효과가 있게 된다.As described above, according to the fluid-mounted engine mount of an automobile according to the present invention, the fluid-filled engine mount is fixed between the lower part of the engine and the vehicle body to reduce vibrations or noise generated from the engine. 5) By sequentially press-fitting the liquid-liquid chamber structure 10 and the air chamber structure 14, the attenuation of the axial vibration of the engine at high frequency or low frequency large displacement is appropriately attenuated. The process is also simplified, making it easy to manufacture.

Claims (2)

내측파이프(1)와 외측파이프(2)사이에 가류되는 주고무살(3)로 주액실(4)이 형성되는 주액실구조물(5)과, 이 주액실구조물(5)내에 절곡된 강재판(6)과 이의 선단에 가류접착된 다이아프램(7)으로 오리피스(8) 및 부액실(9)이 형성되는 부액실구조물(10) 및, 이 부액실구조물(10)의 하부에 절곡된 강재판(11)과 이의 선단에 가류접착된 고무링(12)으로 공기실(13)이 형성되는 공기실구조물(14)로 구성되어 이루어지는 자동차의 유체봉입식 엔진마운트.A liquid injection chamber structure 5 in which a liquid injection chamber 4 is formed of a high abutate 3, which is vulcanized between the inner pipe 1 and the outer pipe 2, and a steel plate bent in the liquid injection chamber structure 5 ( 6) and the liquid-liquid chamber structure 10 in which the orifice 8 and the liquid-liquid chamber 9 are formed by the diaphragm 7 vulcanized to the front end thereof, and the steel plate bent in the lower part of the liquid-liquid chamber structure 10. (11) and a fluid-sealed engine mount for an automobile, which is composed of an air chamber structure (14) in which an air chamber (13) is formed by a rubber ring (12) which is vulcanized at the tip thereof. 제 1 항에 있어서, 상기 주액실(4)과 오리피스(8)사이와, 오리피스(8)와 부액실(9)사이에는 각각 연통구멍(15)이 마련되어 주액실(4)의 유체가 오리피스(8)를 거쳐 부액실(9)로 유동될 수 있도록 된 것을 특징으로 하는 자동차의 유체봉입식 엔진마운트.2. A communication hole (15) is provided between the pouring chamber (4) and the orifice (8), and between the orifice (8) and the liquid filling chamber (9), so that the fluid in the pouring chamber (4) is orifice. 8) Fluid-enclosed engine mount of a vehicle, characterized in that it can be flowed through the liquid-liquid chamber (9).
KR1019960061796A 1996-12-05 1996-12-05 Fluid-mounted engine mounts for cars KR19980043817A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100513484B1 (en) * 2002-06-03 2005-09-08 기아자동차주식회사 Automobile Fluid Type Mountings Using Two Kinds Of Fluid

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100513484B1 (en) * 2002-06-03 2005-09-08 기아자동차주식회사 Automobile Fluid Type Mountings Using Two Kinds Of Fluid

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