KR200154800Y1 - Gas closed type shockabsorber - Google Patents
Gas closed type shockabsorber Download PDFInfo
- Publication number
- KR200154800Y1 KR200154800Y1 KR2019960062272U KR19960062272U KR200154800Y1 KR 200154800 Y1 KR200154800 Y1 KR 200154800Y1 KR 2019960062272 U KR2019960062272 U KR 2019960062272U KR 19960062272 U KR19960062272 U KR 19960062272U KR 200154800 Y1 KR200154800 Y1 KR 200154800Y1
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- damper
- gas
- fluid
- working fluid
- piston
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Classifications
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/043—Fluids electrorheological
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
본 고안은 ER(Electro-Rheological)유체를 작동 유체로 이용하는 가스봉입형 충격흡수장치에 있어서, 댐퍼내의 ER유체를 초음파를 이용하여 지속적으로 순환되는 운동량을 부여하여 댐퍼내의 작동유체가 침전되는 것을 방지할 수 있도록 한 것이다.The present invention provides a gas-sealed shock absorbing device that uses ER (Electro-Rheological) fluid as a working fluid, to prevent the sedimentation of the working fluid in the damper by providing a continuous amount of circulating ER fluid in the damper using ultrasonic waves. It is to be done.
본 고안은 피스톤로드(20)와 연결된 피스톤(2)이 인장·압축 행정을 반복할 때마다 플로팅피스톤(3)이 상·하로 움직이면서 가스실(G)내의 가스를 압축시키며 충격을 흡수하는 감쇠력을 발생시키도록 된 가스봉입형 충격흡수장치에 있어서, 상기 댐퍼(1)의 하부 일측으로부터 내측으로 관통되는 진동자(8:Vibrator)를 부설하여 댐퍼(1)의 내측으로 끼워진 진동자(8)에서 발생되는 초음파를 이용하여 작동유체가 한곳에 머무르지 않고 지속적으로 움직일 수 있는 운동량을 부여하도록 구성됨을 특징으로 하고 있다.The present invention generates a damping force to absorb the shock and compress the gas in the gas chamber (G) as the floating piston (3) moves up and down as the piston (2) connected to the piston rod (20) repeats the tension and compression stroke. In the gas encapsulated shock absorbing device, the ultrasonic wave generated by the vibrator (8) fitted inside the damper (1) by placing a vibrator (8) penetrating inward from the lower side of the damper (1) It is characterized in that the working fluid is configured to give a momentum that can be continuously moved without staying in one place.
Description
본 고안은 ER(Electro-Rheological)유체를 작동 유체로 이용하는 가스봉입형 충격흡수장치에 있어서, 댐퍼내의 ER유체를 초음파를 이용하여 지속적으로 순환되는 운동량을 부여하여 댐퍼내의 작동유체가 침전되는 것을 방지할 수 있도록 한 것이다.The present invention provides a gas-sealed shock absorbing device that uses ER (Electro-Rheological) fluid as a working fluid, to prevent the sedimentation of the working fluid in the damper by providing a continuous amount of circulating ER fluid in the damper using ultrasonic waves. It is to be done.
잘 알려진바 와 같이 최근에는 전기장 무부하시에는 유체 중에 분산된 입자가 자유 운동을 하여 등방향성(isotropic)의 특성을 보이지만, 전기장을 ER유체에 가하면 유체 중에 분산된 입자가 유도 분극을 일으켜 전극을 향하는 다수의 섬유상 조직을 형성함으로써 이 방향성(anisotropic)의 거동을 갖게 되어 유체의 유동이나 외부에서 가해지는 전단력에 대하여 저항을 나타내는 특성을 들어 차량 서스펜션(Suspension) 구동을 위한 작동 유체로 ER(Electro-Rheological) 유체가 많이 이용되고 있는 추세이다.As is well known, recently, particles dispersed in a fluid move freely under an electric field and exhibit an isotropic property.However, when an electric field is applied to an ER fluid, particles dispersed in a fluid generate induced polarization and are directed toward an electrode. By forming a large number of fibrous tissues, they have an anisotropic behavior and exhibit resistance to fluid flow or external shear forces.These are ER (Electro-Rheological) working fluids for driving vehicle suspensions. ) Fluid is being used a lot.
상기 ER유체는 용매와 용질이 혼합된 용액으로서 용질이 고은 입자의 형태로 되어 있다.The ER fluid is a solution in which a solvent and a solute are mixed in the form of solute silver particles.
종래에는 도 1에 나타낸 바와 같이 댐퍼(1)내의 작동유체가 유동될 수 있는 별도의 장치가 마련되어지 않아 이를 장시간 동안 그대로 방치하게 되는 경우 작동유체의 용액으로부터 용질이 분리되어 침전이 발생하게 되고, 이처럼 용액으로부터 용질이 분리되어 침전이 발생하게 되면 용액의 농도가 달라져 작동유체의 특성 변화로 인한 성능저하를 초래하는 등의 문제점이 있었다.Conventionally, as shown in Figure 1 is not provided with a separate device that can flow the working fluid in the damper (1) is left as it is for a long time when the solute is separated from the solution of the working fluid is precipitated, As such, when the solute is separated from the solution and precipitation occurs, the concentration of the solution is changed, resulting in a decrease in performance due to changes in the characteristics of the working fluid.
이처럼 유압댐퍼의 작동유체로 이용되는 ER유체의 용액으로부터 용질이 분리되는 것을 방지하기 위해서는 댐퍼가 동작 및 구동되지 않더라도 댐퍼내의 유체가 정체되지 아니하도록 이를 순환 유동시킬 필요성이 있는 것이다.In order to prevent the solute is separated from the solution of the ER fluid used as the working fluid of the hydraulic damper it is necessary to circulate it so that the fluid in the damper does not stagnate even if the damper is not operated and driven.
본 고안은 가스봉입형 충격흡수장치가 동작하지 않더라도 그 내측에 장입된 작동유체는 일정한 운동을 반복하게하여 침전물이 발생하는 것을 억제함으로서 댐핑력이 저하되는 것을 방지함에 있는 것이다.The present invention is intended to prevent the damping force from being lowered by suppressing the occurrence of deposits by repeating a constant movement even if the gas-filled shock absorbing device is not operated.
이하, 본 고안의 바람직한 실시 예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 종래 가스봉입형 충격흡수장치의 예시도,Figure 1 is an illustration of a conventional gas-filled shock absorbing device,
제2도는 본 고안의 가스봉입형 충격흡수장치의 예시도,2 is an exemplary view of a gas-filled shock absorbing device of the present invention,
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 피스톤 3 : 플로팅피스톤(Floating piston)2: piston 3: floating piston
4 : 리바운드 챔버 5 : 인너실린더(Inner Cylinder)4: Rebound Chamber 5: Inner Cylinder
6 : 아웃더실린더(Outer Cylinder) 7 : 컴프레션 챔버6: Outer Cylinder 7: Compression Chamber
G : 가스실G: gas chamber
도 2는 본 고안이 적용된 가스봉입형 충격흡수장치의 일 예시도이다.Figure 2 is an exemplary view of a gas-filled shock absorbing device to which the present invention is applied.
이에 도시된 바와 같이 본 고안은 피스톤로드(20)와 연결된 피스톤(2)이 인장· 압축 행정을 반복할 때마다 플로팅피스톤(3)이 상·하로 움직이면서 가스실(G)내의 가스를 압축시키며 충격을 흡수하는 감쇠력을 발생시키도록 된 가스봉입형 충격흡수장치에 있어서, 상기 댐퍼(1)의 하부 일측으로부터 내측으로 관통되는 진동자(8:Vibrator)를 부설하여 댐퍼(1)의 내측으로 끼워진 진동자(8)에서 발생되는 초음파를 이용하여 작동유체가 한곳에 머무르지 않고 지속적으로 움직일수 있는 운동량을 부여하도록 구성됨을 특징으로 하고 있다.As shown in the present invention, whenever the piston 2 connected to the piston rod 20 repeats the tension and compression stroke, the floating piston 3 moves up and down, compressing the gas in the gas chamber G, and In the gas-filled shock absorbing device to generate the damping force to absorb, the vibrator (8) is provided to the inside of the damper (1) by placing a vibrator (8) penetrating inward from the lower side of the damper (1) Using ultrasonic waves generated from the) is characterized in that the working fluid is configured to give the amount of movement that can move continuously without staying in one place.
상기 진동자(8)는 댐퍼(1)가 충격을 흡수하는 감쇠력을 발생시키는 경우에는 동작하기 않았다가 담퍼가 동작하지 않는 정지상태 또는 미약한 경우에만 동작하도록 제어하는 별도의 장치를 부가하는 구성으로 이루어질 수도 있다.The vibrator 8 is configured to add a separate device for controlling the damper 1 to operate only when the damper 1 does not operate when the damper 1 generates a damping force, but operates when the damper does not operate or is weak. It may be.
이와 같이 구성된 본 고안은 댐퍼의 리바운드 행정 시에는 피스톤로드(20)와 연결된 피스톤(2)이 상부측으로 이동하면서 리바운드 챔버(4)내의 ER유체를 압축하고, 이때 압축된 ER유체는 인너실린더 (5a,5b)의 상부홀(50,50')을 통하여 인너실린더(5a,5b)와 아웃더실린더(6) 사이의 틈새(h1, h2)로 빠져나온 후 인너실린더(5a,5b)의 하부홀(52,52')을 통하여 컴프레션 챔버(7)로 유입 순환되고, 반대로 컴프레션 행정 시에는 피스톤(2)이 아래로 이동하면서 컴프레션 챔버(7)내의 ER유체를 압축하게 되는데, 이때 압축된 ER유체는 인너실린더(5a,5b)의 하부홀(52,52'), 틈새(h1, h2), 상부홀(50,50')을 거쳐 리바운드 챔버(4)측으로 유입되어지며 충격을 흡수하는 감쇄작용을 하는 것은 종래와 모두 동일하게 구성되고 있다.The present invention configured as described above compresses the ER fluid in the rebound chamber 4 while the piston 2 connected to the piston rod 20 moves to the upper side during the rebound stroke of the damper, and the compressed ER fluid is the inner cylinder 5a. Of the inner cylinders 5a and 5b after exiting the gap h 1 and h 2 between the inner cylinders 5a and 5b and the outer cylinder 6 through the upper holes 50 and 50 'of the 5b). Inflow and circulation to the compression chamber 7 through the lower holes 52 and 52 ', on the contrary, during the compression stroke, the piston 2 moves downward to compress the ER fluid in the compression chamber 7. The ER fluid flows into the rebound chamber 4 through the lower holes 52 and 52 ', the gaps h 1 and h 2 and the upper holes 50 and 50' of the inner cylinders 5a and 5b. The absorbing attenuation is configured in the same manner as in the prior art.
다만, 본 고안에서는 댐퍼의 움직임이 없거나, 그 운동량이 아주 미약한 정도에 그치는 경우 또는 댐퍼(1)의 동작시에도 진동자(8)에서 발생되는 초음파에 의해 작동유체에 일정한 운동량을 부여하여 댐퍼(1)내의 작동유체가 한 곳에 머무르지 않도록 유동시킴으로서 작동유체가 침전되는 일이 없게 된다.However, in the present invention, there is no movement of the damper, or the momentum of the damper is very weak, or even when the damper 1 is operated, a constant amount of motion is applied to the working fluid by ultrasonic waves generated from the vibrator 8, thereby providing a damper ( The working fluid in 1) flows so that it does not stay in one place so that the working fluid does not settle.
이처럼 본 고안은 작동유체가 침전되는 일이 없도록 기속적인 운동량을 부여함으로서 작동유체가 가지는 특성 변화로 인한 성능 저하를 예방할 수 있다는 장점이 었다.As such, the present invention has the advantage of preventing the performance degradation due to the change in the characteristics of the working fluid by giving a constant momentum so that the working fluid does not settle.
이상에서 설명한 바와 같이 본 고안에 의하면, 댐퍼의 하부 일측으로부터 내측으로 관통되는 진동자에 의해 작동유체가 한곳에 머무르지 않고 지속적으로 움직일 수 있는 운동량을 부여하여 작동유체가 침전되는 일이 없어 특성 변화로 인한 성능 저하를 예방할 수 있다는 효과가 있다.As described above, according to the present invention, the oscillator penetrates inwardly from the lower side of the damper so that the working fluid does not stay in one place and gives the momentum to be continuously moved so that the working fluid does not settle out due to the characteristic change. This has the effect of preventing performance degradation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960062272U KR200154800Y1 (en) | 1996-12-30 | 1996-12-30 | Gas closed type shockabsorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960062272U KR200154800Y1 (en) | 1996-12-30 | 1996-12-30 | Gas closed type shockabsorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980049107U KR19980049107U (en) | 1998-10-07 |
| KR200154800Y1 true KR200154800Y1 (en) | 1999-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960062272U KR200154800Y1 (en) | 1996-12-30 | 1996-12-30 | Gas closed type shockabsorber |
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| KR (1) | KR200154800Y1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101008298B1 (en) * | 2009-05-15 | 2011-01-13 | 현대로템 주식회사 | Unificated suspension apparatus using magneto-rheological fluid |
| KR102530932B1 (en) * | 2016-04-15 | 2023-05-10 | 현대자동차주식회사 | Damper equipped with anti-sedimentation apparatus |
| CN108953466B (en) * | 2018-08-31 | 2020-04-21 | 南京理工大学 | Electrorheological damper |
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1996
- 1996-12-30 KR KR2019960062272U patent/KR200154800Y1/en not_active IP Right Cessation
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| KR19980049107U (en) | 1998-10-07 |
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