KR970006338B1 - Oil sealed engine anti-vibration device - Google Patents

Oil sealed engine anti-vibration device Download PDF

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Publication number
KR970006338B1
KR970006338B1 KR1019940032605A KR19940032605A KR970006338B1 KR 970006338 B1 KR970006338 B1 KR 970006338B1 KR 1019940032605 A KR1019940032605 A KR 1019940032605A KR 19940032605 A KR19940032605 A KR 19940032605A KR 970006338 B1 KR970006338 B1 KR 970006338B1
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KR
South Korea
Prior art keywords
engine
vacuum
negative pressure
check valve
vibration
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KR1019940032605A
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Korean (ko)
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KR960021708A (en
Inventor
남궁련
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기아자동차 주식회사
한승준
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Priority to KR1019940032605A priority Critical patent/KR970006338B1/en
Publication of KR960021708A publication Critical patent/KR960021708A/en
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Publication of KR970006338B1 publication Critical patent/KR970006338B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4183—Preventing or reducing vibrations or noise, e.g. avoiding cavitations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • F16H2057/0012—Vibration-damping or noise reducing means specially adapted for gearings for reducing drive line oscillations

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The hydraulic engine mount generally includes a vehicle body bracket fixed to a vehicle body, an engine bracket fixed on an engine, a rubber for preventing the vibration/noise generated from the engine from being transmitted to the vehicle body bracket; a diaphragm flexibly moved to absorb the vibration/noise; and fluid. The hydraulic engine mount of the present invention further comprises: a check valve for sensing the displacement of the engine and upon generation of an excessive displacement, for changing a vacuum passage; a pressure adjuster for transmitting a vacuum negative pressure to the diaphragm and fluid; a vacuum tank connected to the check valve and for storing the vacuum negative pressure generated during the air intake process and formed by means of a vacuum pump within an alternator; and a unidirectional check valve for protecting the vacuum negative pressure stored in the vacuum tank.

Description

차량의 오일봉입형 엔진진동/소음방지장치Oil-filled engine vibration / noise prevention device of vehicle

제1도는 종래 고무형 엔진마운트의 요부를 발췌한 사시도.1 is a perspective view of the main portion of the conventional rubber engine mount.

제2도는 종래 오일봉입형 엔진마운트의 요부를 발췌한 구조도.2 is a structural diagram extracting the main portion of a conventional oil-sealed engine mount.

제3도는 본 발명의 구성도.3 is a block diagram of the present invention.

제4도는 본 발명 오일봉입형의 엔진마운트의 구조도.4 is a structural diagram of an oil-mounted engine mount of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10：차체 11：차체브라켓트10: body 11: body bracket

20：엔진 21：엔진브라켓트20: Engine 21: Engine Bracket

30：오일봉입형 엔진마운트 31：고무30: Oil enclosed engine mount 31: Rubber

32：다이어프램 33：유체32: Diaphragm 33: Fluid

40：첵크밸브 50：입력조절부40: check valve 50: input control part

51：압력조절관 52：압력조절막51: pressure regulation pipe 52: pressure regulation membrane

60：진공탱크 70：일방향첵크밸브60: vacuum tank 70: one-way check valve

본 발명은 차량의 오일봉입형 엔진마운트에 관한 것으로, 특히 엔진의 흡기행정중 발생되는 진공부압이나, 얼터내이터내 진공펌프를 형성된 진공부압을 이용하여 엔진의 변위량을 감지한 뒤 그에 적합한 스프링특성 및 감쇄특성을 조절하여 2차적으로 엔진의 진동 및 소음을 감쇄시켜 차량의 아이들 및 주행 정숙성을 향상시키고자 하는 차량의 오일봉입형 엔진진동/소음방지장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil-mounted engine mount of a vehicle. In particular, a spring characteristic suitable for sensing an engine displacement by using a vacuum negative pressure generated during an intake stroke of an engine or a vacuum negative pressure in which a vacuum pump is formed in an alternator is suitable. And an oil-filled engine vibration / noise prevention device of a vehicle to improve the idleness and driving quietness of the vehicle by attenuating the vibration and noise of the engine by controlling attenuation characteristics.

일반적으로 엔진마운트는 엔진에서 발생되는 진동, 소음을 절연 감소시켜 주행시 불안감의 해소 및 정숙함을 주기 위하여 사용되는 것으로, 일반적인 고무형 엔진마운트(Conventional Rubber Mount)와 오일봉입형 엔진마운트(Hydralic Engine Mount)로 구분되어 있다.In general, the engine mount is used to reduce the vibration and noise generated from the engine to alleviate anxiety and quietness while driving. In general, the conventional rubber mount and the oil-draped engine mount are mounted. Separated by.

고무형 엔진마운트(30)는 제1도와 같이, 차체에 고정되는 차체브라켓트(11)와, 엔진에 고정되는 엔진브라켓트(21)와, 차체브라켓트(11)와 엔진브라켓트(21) 사이에 탄력있게 일체로 설치되어 엔진에서 발생되는 진동, 소음을 차체브라켓트(11)로 전달되지 않도록 절연 감소시키는 고무(31)로 구성되어 있다.The rubber engine mount 30 is elastically provided between the body bracket 11 fixed to the vehicle body, the engine bracket 21 fixed to the engine, and the body bracket 11 and the engine bracket 21 as shown in FIG. It is integrally installed is composed of a rubber 31 to reduce the insulation so that the vibration, noise generated from the engine is not transmitted to the body bracket (11).

이러한 고무형 엔진마운트는 단순히 고무(31)의 탄성에 의존하여야 되므로 시속 10-60km 정도 저속주행시에는 엔진에서 발생되는 진동, 소음이 차체에 전달되는 저진동과, 시속 100km 이상 고속주행시에는 엔진에서 발생되는 진동, 소음이 차체에 전달되는 고진동이 발생되는 문제점이 있었다.Since the rubber engine mount should simply rely on the elasticity of the rubber 31, the low vibration that is generated from the engine when the low speed driving of about 10-60km per hour is transmitted to the vehicle body and the high vibration that is generated by the engine when driving at 100km / h or more There was a problem that a high vibration is generated in which vibration and noise are transmitted to the vehicle body.

오일봉입형 엔진마운트(30)는 제2도와 같이, 차체에 고정되는 차체브라켓트(11)와, 엔진이 고정되는 엔진브라켓트(21)와, 차체브라켓트(11)와 엔진브라켓트(21)사이에 탄력있게 일체로 설치되어 엔진에서 발생되는 진동, 소음을 차체브라켓트(11)로 전달되지 않도록 절연 감소시키는 고무(31)와, 차체브라켓트(11)와 고무(31) 사이에 밀폐되게 설치되어 고무(31)의 변형시 이를 감지하여 유연하게 유동하여서 진동, 소음을 흡수하도록 하는 다이어프램(32) 및 유체(33)로 구성되어 있다.The oil-filled engine mount 30 has a resilience between the body bracket 11 fixed to the vehicle body, the engine bracket 21 on which the engine is fixed, and the body bracket 11 and the engine bracket 21 as shown in FIG. Rubber 31 is installed integrally so as to insulate and reduce the vibration and noise generated from the engine so as not to be transmitted to the body bracket 11, and is installed to be sealed between the body bracket 11 and the rubber (31). ) Is composed of a diaphragm 32 and a fluid 33 that detects this deformation and flows flexibly to absorb vibration and noise.

이러한 오일봉입형 엔진마운트는 고무형 엔진마운트의 문제점을 해결할 수 있는 우수한 성능을 가지고 있다.The oil-filled engine mount has excellent performance to solve the problem of the rubber engine mount.

즉, 시속 10-60km 정도 저속주행시에는 엔진에서 발생되는 진동, 소음이 차체에 전달되지 않도록 고감쇄하여 차량 진동을 현저하게 줄이고, 시속 100km 이상 고속주행시에는 엔진에서 발생되는 진동, 소음이 차체에 전달되지 않도록 다이어프램(32)과 유체(33)가 유연하게 유동하여서 저스프링특성에 의한 진동, 소음을 줄이도록 하는 성능이 있으나, 고속주행이면서 고감쇄가 필요한 경우에는 그 성능이 충분히 발휘하지 못하여 별도의 부가장치를 설치하여야 하는 문제점이 있었다.In other words, when driving at low speeds of about 10-60 km / h, the vehicle attenuates significantly, so that vibrations and noise generated by the engine are not transmitted to the vehicle body. In order to prevent the diaphragm 32 and the fluid 33 from flowing smoothly, the diaphragm 32 and the fluid 33 may reduce vibration and noise due to low spring characteristics. However, when high speed driving and high attenuation are required, the performance may not be sufficiently exhibited. There was a problem that an additional device must be installed.

본 발명은 이러한 종래의 오일봉입형 엔진마운트의 문제점을 해결하고자 하는 것으로, 엔진의 흡기행정중 발생되는 진공부압을 이용하여 엔진의 변위량을 감지한 뒤 그에 적합한 스프링특성 및 감쇄특성을 조절하여 2차적으로 엔진의 진동 및 소음을 감쇄시켜 차량의 아이들(idle) 및 주행 정숙성을 향상시키고자 하는데 그 목적이 있다.The present invention is to solve the problems of such a conventional oil-sealed engine mount, by detecting the displacement of the engine using the vacuum negative pressure generated during the intake stroke of the engine, and then adjust the spring characteristics and attenuation characteristics suitable for the secondary. The purpose is to improve the idleness and running quietness of the vehicle by attenuating vibration and noise of the engine.

이러한 본 발명의 목적을 달성하기 위하여, 차체에 고정되는 차체브라켓트와, 엔진에 고정되는 엔진브라켓트와, 차체브라켓트와 엔진브라켓트 사이에 탄력있게 일체로 설치되어 엔진에서 발생되는 진동, 소음을 차체브라켓트로 전달되지 않도록 절연 감소시키는 고무와, 차체브라켓트와 고무 사이에 밀폐되게 설치되어 고무의 변형시 이를 감지하여 유연하게 유동하여서 진동, 소음을 흡수하도록 하는 다이어프램 및 유체로 구성된 오일봉입형 엔진마운트에 있어서, 엔진의 변위를 감지하여 과도한 엔진변위가 발생시 진공유로를 전환시켜 주는 첵크밸브와, 첵크밸브의 유로전환으로 진공부압을 다이어프램 및 유체로 전달하여 주는 압력조절부와, 첵크밸브와 연결되어 엔진의 흡기행정중 발생하는 진공부압이나, 얼터내이터내 진공펌프로 형성된 진공부압을 저장하는 진공탱크와, 진공탱크에 저장된 진공부압이 손실되지 않도록 보호하여 주는 일방향첵크밸브로 구성하여 스프링 및 감쇄특성을 조정하도록 차량의 오일봉입형 엔진진동/소음방지장치를 구성한 것이 본 발명의 특징이다.In order to achieve the object of the present invention, the body bracket which is fixed to the vehicle body, the engine bracket fixed to the engine, and the body bracket and the engine bracket is installed elastically integrally between the body bracket and the engine generated vibration, noise as the body bracket In the oil-filled engine mount consisting of a diaphragm and a fluid to reduce the insulation so as to prevent the transmission, and is installed in a sealed between the body bracket and the rubber to detect the deformation of the rubber to flow flexibly to absorb vibration and noise, A check valve that detects displacement of the engine and switches the vacuum flow in the event of excessive engine displacement, a pressure control unit that transfers vacuum negative pressure to the diaphragm and fluid by switching the check valve flow path, and is connected to the check valve to intake the engine Vacuum formed by stroke or vacuum formed in the alternator It consists of a vacuum tank to store the study pressure and a one-way check valve that protects the vacuum negative pressure stored in the vacuum tank from loss. The oil-filled engine vibration / noise prevention device of the vehicle is configured to adjust the spring and damping characteristics. It is a feature of the invention.

상기 압력조절부는 차체브라켓트, 고무를 관통하여 다이어프램과 유체으로 연통되게 설치하여 첵크밸브의 유로전환으로 진공부압을 공급하는 압력조절관과, 고무와 유체 사이에 설치되어 유체가 유출되지 않도록 차단하는 동시에 진공부압의 공급시 스프링 및 감쇄특성을 조절하는 압력조절막으로 구성한다.The pressure control unit is installed between the body bracket and the rubber to communicate with the diaphragm and the fluid, the pressure control pipe for supplying the vacuum negative pressure by switching the flow path of the check valve, and is installed between the rubber and the fluid to prevent the fluid from flowing out Consists of a pressure regulating membrane that controls the spring and damping characteristics when supplying vacuum negative pressure.

상기 압력조절막은 유연한 재질의 고무재를 사용하는 것이 바람직하다.The pressure regulating membrane is preferably used a rubber material of a flexible material.

이하 본 발명을 첨부도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도면 제2도 및 제4도에서, 차체(10)에 소정되는 차체브라켓트(11)와, 엔진(20)에 고정되는 엔진브라켓트(21)와, 차체브라켓트(11)와 엔진브라켓트(21) 사이에 탄력있게 일체로 설치되어 엔진에서 발생되는 진동, 소음을 차체브라켓트(11)로 전달되지 않도록 절연 감소시키는 고무(31)와, 차체브라켓트(11)와 고무(31) 사이에 밀폐되게 설치되어 고무(31)의 변형시 이를 감지하여 유연하게 유동하여서 진동, 소음을 흡수하도록 하는 다이어프램(32) 및 유체(33)로 구성된 오일봉입형 엔진마운트(30)에 있어서, 엔진(20)의 변위를 감지하여 과도한 엔진변위가 발생시 진공유로를 전환시켜 주는 첵크밸브(40)와, 첵크밸브(40)의 유로전환으로 진공부압을 다이어프램(32) 및 유체(33)로 전달하여 주는 압력조절부(50)와 첵크밸브(40)와 연결되어 엔진(20)의 흡기행정중 발생하는 진공부압이나 얼터내이터로 형성된 진공부압을 저장하는 진공탱크(60)와, 진공탱크(60)에 저장된 진공부압이 손실되지 않도록 보호하여 주는 일방향첵크밸브(70)로 구성하여 스프링 및 감쇄특성을 조정하도록 차량의 오일봉입형 엔진진동/소음방지장치를 구성한다.2 and 4, between the vehicle body bracket 11 and the engine bracket 21 fixed to the engine 20, between the body bracket 11 and the engine bracket 21, which are fixed to the vehicle body 10, respectively. Rubber 31 is installed integrally and elastically on the rubber 31 to reduce the insulation and vibrations generated from the engine so as not to be transmitted to the body bracket 11, and is installed to be sealed between the body bracket 11 and the rubber (31) In the oil-sealed engine mount (30) consisting of a diaphragm (32) and a fluid (33) which detects this when the deformation of the (31) is made and flows flexibly to absorb vibration and noise, the displacement of the engine (20) is detected. Check valve 40 to switch the vacuum flow path when excessive engine displacement occurs, and the pressure control unit 50 to transfer the vacuum negative pressure to the diaphragm 32 and the fluid 33 by switching the flow path of the check valve 40. Connected to the check valve 40 and generated during the intake stroke of the engine 20. It consists of a vacuum tank 60 for storing the vacuum negative pressure formed by the negative pressure or the alternator, and a one-way check valve 70 that protects the vacuum negative pressure stored in the vacuum tank 60 from being lost to adjust the spring and damping characteristics. The oil-filled engine vibration / noise prevention device of the vehicle is configured.

상기 압력조절부(50)는 차체브라켓트(11), 고무(31)를 관통하여 다이어프램(32)과 유체(33)으로 연통되게 설치하여 첵크밸브(40)의 유로전환으로 진공부압을 공급하는 압력조절관(51)과, 고무(31)와 유체(33) 사이에 설치되어 유체(33)가 유출되지 않도록 차단하는 동시에 진공부압의 공급시 스프링 및 감쇄특성을 조절하는 압력조절막(52)으로 구성한다.The pressure adjusting unit 50 is installed to communicate with the diaphragm 32 and the fluid 33 through the body bracket 11 and the rubber 31 to supply vacuum negative pressure by switching the flow path of the check valve 40. It is installed between the control tube 51 and the rubber 31 and the fluid 33 to block the fluid 33 from flowing out and at the same time to adjust the spring and attenuation characteristics when supplying the vacuum negative pressure to the pressure regulating membrane 52. Configure.

상기 압력조절막(52)은 유연한 재질의 고무재를 사용하는 것이 바람직하다.The pressure control membrane 52 is preferably made of a rubber material of a flexible material.

이와 같이 구성된 본 발명은, 차량의 고속주행시 통상적으로는 흡기행정시 첵크밸브(40), 진공탱크(60), 일방향첵크밸브(70)를 통해 엔진(20)으로 공기를 공급하며, 이때 차량에서 발생하는 진동, 소음은 1차적으로 종래와 같은 방법으로 오일봉입형 엔진마운트에 의하여 스프링 및 감쇄특성하여 차량의 아이들 및 주행정숙성을 유지하게 된다.According to the present invention configured as described above, the air is supplied to the engine 20 through the check valve 40, the vacuum tank 60, and the one-way check valve 70 at the time of intake stroke. The generated vibration and noise are primarily spring-loaded and attenuated by the oil-filled engine mount in the same manner as the conventional method to maintain idleness and running quietness of the vehicle.

그러나 고속주행이면서 고감쇄가 필요한 경우, 엔진(20)에 많은 공기량을 흡입할 때 엔진(20)의 변위를 과도하게 발생하게 되므로 이를 첵크밸브(40)가 감지하여 진공유로를 엔진측에서 오일봉입형 엔진마운트로 전환시켜 주게 되며, 엔진(20)의 흡기행정으로 되는 경우 다시 첵크밸브(40)가 진공유로를 엔진(20)측으로 전환시켜 진공유로의 반복적인 전환을 하게 된다.However, when high speed driving and high attenuation are necessary, the displacement of the engine 20 is excessively generated when a large amount of air is sucked into the engine 20. Therefore, the check valve 40 detects this and encloses the vacuum flow path in the engine side. The engine is switched to the engine type, and when the intake stroke of the engine 20 is performed, the check valve 40 switches the vacuum flow path to the engine 20 side and repeatedly switches to the vacuum flow path.

따라서 오일봉입형 엔진마운트로 전환이 되면 진공부압은 압력조절부(50)의 압력조절관(51)을 통해 고무(31)와 압력조절막(52) 사이로 공급되게 되므로 에진의 변화량만큼 진공부압이 작용하게 되며, 그 진공부압에 의하여 고무(31)의 탄력과, 다이어프램(32) 및 유체(33)의 유연성을 제어하게 되므로 2차적으로 스프링 및 감성이 작용하여 진동, 소음을 감소시켜 주게 되는 것이다.Therefore, when the oil-loaded engine mount is switched, the vacuum negative pressure is supplied between the rubber 31 and the pressure regulating membrane 52 through the pressure regulating tube 51 of the pressure regulating unit 50, so that the vacuum negative pressure is changed by the amount of the erosion. The elasticity of the rubber 31 and the flexibility of the diaphragm 32 and the fluid 33 are controlled by the vacuum negative pressure, thereby reducing the vibration and noise by acting as a spring and sensitivity. .

따라서 엔진의 변위에 따라 2차적으로 이에 적합한 스프링 및 감쇄특성의 감소로 진동 및 소음을 감소시켜 주므로 차량의 아이들 및 주행정숙성을 더욱 유지시켜 줄 수가 있는 것이다.Therefore, according to the displacement of the engine, the vibration and noise can be reduced by reducing the spring and attenuation characteristics suitable for the secondary, so that the idleness and running quietness of the vehicle can be further maintained.

이와 같이 본 발명은 엔진의 흡기행정중 발생되는 진공부압을 이용하여 엔진의 변위량을 감지한 뒤 그에 적합한 스프링특성 및 감쇄특성을 조절하여 2차적으로 엔진의 진동 및 소음을 감쇄시켜 차량의 아이들(idle) 및 주행정숙성을 항상 일정하게 유지할 수가 있는 것이다.As described above, the present invention senses the displacement of the engine by using the vacuum negative pressure generated during the intake stroke of the engine, and then adjusts the spring and attenuation characteristics suitable for the engine to attenuate the vibration and noise of the engine secondarily. ) And driving quietness can be kept constant at all times.

Claims (3)

차체에 고정되는 차체브라켓트와, 엔진에 고정되는 엔진브라켓트와, 차체브라켓트와 엔진브라켓트 사이에 탄력있게 일체로 설치되어 엔진에서 발생되는 진동, 소음을 차체브라켓트로 전달되지 않도록 절연 감소시키는 고무와, 차체브라켓트와 고무 사이에 밀폐되게 설치되어 고무의 변형시 이를 감지하여 유연하게 유동하여서 진동, 소음을 흡수하도록 하는 다이어프램 및 유체로 구성된 오일봉입형 엔진마운트에 있어서, 엔진의 변위를 감지하여 과도한 엔진변위가 발생시 진공유로를 전환시켜 주는 첵크밸브와, 첵크밸브의 유로전환으로 진공부압을 다이어프램 및 유체로 전달하여 주는 압력조절부와, 첵크밸브와 연결되어 엔진의 흡기행정중 발생하는 진공부압이나 얼터내이터내 진공펌프로 형성된 진공부압을 저장하는 진공탱크와, 진공탱크에 저장된 진공부압이 손실되지 않도록 보호하여 주는 일방향첵크밸브로 구성하여 스프링 및 감쇄특성을 조정하도록 한 것을 특징으로 하는 차량의 오일봉입형 엔진진동/소음방지장치.The body bracket fixed to the vehicle body, the engine bracket fixed to the engine, and the rubber body that is installed elastically integrally between the body bracket and the engine bracket to insulate and reduce the vibration and noise generated from the engine to the body bracket, An oil-sealed engine mount consisting of a diaphragm and a fluid that is installed to be sealed between the bracket and the rubber to detect the deformation of the rubber and flow smoothly to absorb vibration and noise. Check valve to switch the vacuum flow path at the time of generation, pressure control unit to transfer the vacuum negative pressure to the diaphragm and fluid by switching the flow path of the check valve, and vacuum negative pressure or alternator generated during the intake stroke of the engine connected to the check valve. In the vacuum tank for storing the vacuum negative pressure formed by the vacuum pump, and in the vacuum tank An oil-filled engine vibration / noise prevention device for a vehicle, characterized by adjusting spring and damping characteristics by configuring a one-way check valve to protect the stored vacuum negative pressure from being lost. 제1항에 있어서, 상기 압력조절부는 차체브라켓트, 고무를 관통하여 다이어프램과 유체으로 연통되게 설치하여 첵크밸브의 유로전환으로 진공부압을 공급하는 압력조절관과, 고무와 유체 사이에 설치되어 유체가 유출되지 않도록 차단하는 동시에 진공부압의 공급시 스프링 및 감쇄특성을 조절하는 압력조절막으로 구성한 것을 특징으로 하는 차량의 오일봉입형 엔진진동/소음방지장치.According to claim 1, wherein the pressure control unit is installed between the body bracket, the rubber in communication with the diaphragm and the pressure control pipe for supplying the vacuum negative pressure by switching the flow path of the check valve, the fluid is installed between the fluid and the fluid An oil-filled engine vibration / noise prevention device for vehicle, characterized in that it is composed of a pressure regulating membrane which prevents leakage and at the same time controls the spring and damping characteristics when supplying vacuum negative pressure. 제1항에 있어서, 상기 입력조절막은 유연한 재질의 고무재를 사용한 것을 특징으로 하는 차량의 오일봉입형 엔진진동/소음방지장치.2. The oil-filled engine vibration / noise prevention device according to claim 1, wherein the input control membrane is made of a flexible rubber material.
KR1019940032605A 1994-12-02 1994-12-02 Oil sealed engine anti-vibration device KR970006338B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940032605A KR970006338B1 (en) 1994-12-02 1994-12-02 Oil sealed engine anti-vibration device

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KR960021708A KR960021708A (en) 1996-07-18
KR970006338B1 true KR970006338B1 (en) 1997-04-25

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