KR100916267B1 - Gas-lifter for a vehicle - Google Patents

Gas-lifter for a vehicle Download PDF

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Publication number
KR100916267B1
KR100916267B1 KR1020080066408A KR20080066408A KR100916267B1 KR 100916267 B1 KR100916267 B1 KR 100916267B1 KR 1020080066408 A KR1020080066408 A KR 1020080066408A KR 20080066408 A KR20080066408 A KR 20080066408A KR 100916267 B1 KR100916267 B1 KR 100916267B1
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South Korea
Prior art keywords
piston
gas
cylinder
cross
lifter
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KR1020080066408A
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Korean (ko)
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김수복
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현대자동차주식회사
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Priority to KR1020080066408A priority Critical patent/KR100916267B1/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
    • 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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0218—Mono-tubular units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/10—Doors arranged at the vehicle rear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
    • 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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0227—Telescopic characterised by the piston construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/11—Passenger cars; Automobiles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/548—Trunk lids

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

A gas lifter for a vehicle is provided to reduce operating noise of the gas lifter by preventing sudden expansion of the gas passing between a piston and a fluid path groove. A gas lifter for a vehicle comprises a cylinder(100), a rod(300) and a piston(500). The cylinder is filled with the fluid of the high pressure which is greater than the atmospheric pressure. On the inner surface of the cylinder, a fluid path groove of the longitudinal direction is formed. The rod is inserted into the one side of the cylinder. The piston is prepared at the end part of the inserted rod. The piston has the cross section which is cut down, so the front-end and the back-end are inclined. In the piston, the pressure of the fluid entering the fluid path groove is gently changed. The cross section of piston is curve in which the top end portion and the bottom end are bent. The cross section of the piston is in an ellipse shape contacted with the inner surface of the cylinder.

Description

차량용 가스리프터 {GAS-LIFTER FOR A VEHICLE}Car Gas Lifter {GAS-LIFTER FOR A VEHICLE}

본 발명은 차체와 트렁크 리드 또는 테일게이트 등의 게이트 사이에 마련되어 게이트에 개방력을 가하는 차량용 가스리프터에 관한 것이다.The present invention relates to a vehicle gas lifter provided between a vehicle body and a gate such as a trunk lid or tailgate to apply an opening force to the gate.

최근 차량의 트렁크나 테일게이트에는 가스리프터가 설치되어 사용자가 트렁크 리드 또는 테일게이트(이하 "게이트"라 함.)를 개방할 경우 가스리프터에 의하여 게이트가 자동적으로 상승되며 열린다.Recently, a gas lifter is installed in a trunk or tailgate of a vehicle, and when a user opens a trunk lid or tailgate (hereinafter, referred to as a "gate"), the gate is automatically lifted and opened by the gas lifter.

가스리프터는 공압실린더를 이용함이 일반적인데, 도 1을 참고하여 가스리프터의 작동원리를 살펴본다. 종래의 가스리프터는 실린더(10)와 로드(30)로 구성되고, 로드(30)의 단부에는 원판형 피스톤(50)이 마련된다. 실린더(10)의 내측에는 고압의 가스가 채워져 진공된다. The gas lifter generally uses a pneumatic cylinder. Referring to FIG. 1, the operation principle of the gas lifter will be described. The conventional gas lifter includes a cylinder 10 and a rod 30, and a disk-shaped piston 50 is provided at an end of the rod 30. The inside of the cylinder 10 is filled with a high-pressure gas is vacuumed.

도 2는 가스의 유로홈을 나타낸 도면으로서, 실린더(10)에 형성된 유로홈(18)와 피스톤(50)의 사이 공간(H)으로 가스가 유입 또는 유출된다. 도 1의 가스리프터 내부구조를 참고하면, 피스톤(50)을 중심으로 좌측의 가스와 우측의 가스는 상호 유로홈(18)을 통하여 이동된다. 좌측의 가스는 고압의 가스가 피스톤(50)의 단면적에 압력을 가하는 것이고, 우측의 가스는 고압의 가스가 피스톤(50)의 단면 적에서 로드(30)의 단면적을 뺀 만큼 압력을 가하는 것으로서,(이 경우 로드의 단면적에는 대기압이 작용한다.) 양측의 압력 차이로 인하여 로드(30)가 항상 실린더(10)의 외측으로 돌출되게끔 피스톤(50)에 힘이 가해진다.FIG. 2 is a view showing a flow path groove of gas, and gas flows into or out of the space H between the flow path groove 18 and the piston 50 formed in the cylinder 10. Referring to the internal structure of the gas lifter of FIG. 1, the gas on the left side and the gas on the right side are moved through the flow path groove 18 about the piston 50. The gas on the left is that the high pressure gas pressurizes the cross-sectional area of the piston 50, and the gas on the right is the pressure of the high pressure gas that is subtracted from the cross-sectional area of the piston 50 by subtracting the cross-sectional area of the rod 30, (In this case, atmospheric pressure acts on the cross-sectional area of the rod.) Due to the pressure difference between both sides, a force is applied to the piston 50 so that the rod 30 always protrudes out of the cylinder 10.

이러한 가스리프터의 양단(16,36)을 차체와 게이트에 고정할 경우 게이트에 개방력을 제공하는 것이다.When both ends 16 and 36 of the gas lifter are fixed to the vehicle body and the gate, the opening force is provided to the gate.

한편, 실린더(10)의 로드 출입구에는 실링 부재(14,34)를 마련하고, 실린더(10)의 내측에는 스토퍼(12)를 구비하여 피스톤(50)을 저지한다.On the other hand, the sealing members 14 and 34 are provided in the rod entrance and exit of the cylinder 10, and the stopper 12 is provided in the inside of the cylinder 10, and the piston 50 is prevented.

도 3은 가스리프터의 작동시 관측되는 운동을 나타낸 표와 그래프이다. 0, 2, 3, 5, 6은 개방시의 로드 속도이고, 1, 4, 7은 폐쇄시의 로드 속도이다. 게이트의 하중으로 인하여 폐쇄시 로드(30)의 운동속도가 개방시보다 더 빠르며 가장 속도가 높은 1, 4 구간의 경우 로드(30) 속도는 0.275 m/s로써 이 경우의 내부 가스 속도는 261 m/s인 0.77 마하에 해당한다.3 is a table and a graph showing the movements observed during operation of the gas lifter. 0, 2, 3, 5, and 6 are load speeds at opening, and 1, 4 and 7 are load speeds at closing. Due to the load of the gate, the closing speed of the rod 30 is faster than that of opening, and the rod 30 speed is 0.275 m / s in the 1st and 4th sections with the highest speed. In this case, the internal gas velocity is 261 m. Equivalent to 0.77 mach, which is / s.

도 4를 참고하여 가스리프터의 소음발생 현상을 살펴본다. 로드(30)의 움직임시 피스톤(50)과 실린더(10)의 유로홈(18) 사이에는 고압의 가스가 이동되는데, 예를 들어 c에서 b를 지나 a구간으로 가스가 이동된다고 가정한다. 가스가 지나가는 단면적의 경우 a가 가장 크고 b는 매우 작으며 c는 a보다 작은 크기이다. c에서 가스가 이동되어 b를 통과하며 압축되고, a로 나아가며 급격한 팽창을 하게 된다. 가스가 b에서 a로 급격히 팽창되며 소음이 발생하는 것이다. Referring to Figure 4 looks at the noise generation phenomenon of the gas lifter. When the rod 30 moves, the high pressure gas is moved between the piston 50 and the flow path groove 18 of the cylinder 10. For example, it is assumed that the gas is moved from the c to the b through the a section. In the cross-sectional area through which the gas passes, a is the largest, b is very small, and c is smaller than a. At c, the gas moves and is compressed through b, leading to a rapid expansion. The gas expands rapidly from b to a and noise occurs.

이러한 가스리프터의 로드 이동시 발생되는 가스 소음은 게이트의 개방 또는 폐쇄시 모두 발생하며 이로 인하여 가스리프터의 상품성이 저하되는 문제가 있었 다.The gas noise generated during the movement of the gas lifter is generated when the gate is opened or closed, thereby degrading the commerciality of the gas lifter.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안될 것이다.The matters described as the background art are only for the purpose of enhancing the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related arts already known to those skilled in the art.

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 피스톤과 유로홈의 사이로 지나가는 가스의 급팽창을 방지하여 가스리프터의 작동소음을 저감하는데 그 목적이 있다.The present invention has been proposed to solve the above problems, and an object thereof is to reduce the operation noise of the gas lifter by preventing a sudden expansion of the gas passing between the piston and the flow path groove.

상기의 목적을 달성하기 위한 본 발명에 따른 차량용 가스리프터는, 적어도 대기압보다 큰 고압의 유체가 충전되고 내면에는 길이방향의 유로홈이 형성된 실린더; 상기 실린더의 일측에 삽입된 로드; 및 상기 삽입된 로드의 단부에 마련되며, 상기 유로홈을 출입하는 유체의 압력이 완만히 변화되도록 전단부와 후단부가 경사지게 깎인 형상의 단면을 갖는 피스톤;을 포함한다.According to an aspect of the present invention, there is provided a vehicle gas lifter including: a cylinder filled with a fluid having a high pressure greater than at least atmospheric pressure, and having an inner side groove formed therein; A rod inserted into one side of the cylinder; And a piston provided at an end of the inserted rod, the piston having a cross section in which the front end and the rear end are inclined to be inclined so that the pressure of the fluid entering and exiting the flow path groove is gently changed.

상기 피스톤의 단면은 그 상단부와 하단부가 만곡된 곡선일 수 있다.The cross section of the piston may be a curved curve of the upper end and the lower end.

상기 피스톤의 단면은 실린더 내면에 접하는 타원형일 수 있다.The cross section of the piston may be elliptical in contact with the inner surface of the cylinder.

상술한 바와 같은 구조로 이루어진 차량용 가스리프터에 따르면, 피스톤의 단면 형상이 직각이 아닌 경사면으로 되어 유로홈을 지나가는 가스의 급팽창이 방지되고 가스리프터의 작동소음이 줄어들며 상품성이 개선된다.According to the gas lifter for a vehicle having the structure as described above, the cross-sectional shape of the piston is an inclined surface rather than a right angle to prevent the sudden expansion of the gas passing through the flow path groove, the operation noise of the gas lifter is reduced and the merchandise is improved.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예에 따른 차량용 가스리프터에 대하여 살펴본다.Hereinafter, a vehicle gas lifter according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 5는 본 발명의 일 실시예에 따른 가스리프터의 단면도이다. 그 가스리프터는 적어도 대기압보다 큰 고압의 유체가 충전되고 내면에는 길이방향의 유로홈(180)이 형성된 실린더(100); 상기 실린더(100)의 일측에 삽입된 로드(300); 상기 삽입된 로드(300)의 단부에 마련되며, 상기 유로홈(180)을 출입하는 유체의 압력이 완만히 변화되도록 전단부와 후단부가 경사지게 깎인 형상의 단면을 갖는 피스톤(500);을 포함한다.5 is a cross-sectional view of a gas lifter according to an embodiment of the present invention. The gas lifter includes a cylinder 100 filled with a fluid having a high pressure of at least greater than atmospheric pressure and having a flow path groove 180 in a longitudinal direction thereof; A rod 300 inserted into one side of the cylinder 100; And a piston 500 provided at an end of the inserted rod 300 and having a cross section of a shape in which the front end and the rear end are inclined to be inclined so that the pressure of the fluid entering and exiting the flow path groove 180 is gently changed.

실린더(100) 내에 충전된 고압의 유체는 압축과 팽창에 유리한 기체 가스를 사용함이 바람직하다. 고압 가스는 실린더(100)의 내측에서 압력차로 인하여 피스톤(500)을 항상 외측으로 가압한다. 피스톤(500)에 단부(320)가 결합된 로드(300) 역시 외측으로 가압되며 로드(300)는 실링(140)을 통하여 실린더(100)에 삽입된 상태로 움직인다. 실린더(100)의 내측에는 스토퍼(120)가 구비되어 피스톤(500)의 이동거리를 제한한다.The high pressure fluid filled in the cylinder 100 preferably uses gaseous gas that is advantageous for compression and expansion. The high pressure gas always presses the piston 500 outward due to the pressure difference inside the cylinder 100. The rod 300 having the end 320 coupled to the piston 500 is also pressed outward and the rod 300 moves while being inserted into the cylinder 100 through the sealing 140. A stopper 120 is provided inside the cylinder 100 to limit the moving distance of the piston 500.

고압의 가스는 실린더(100)의 내측에 형성된 유로홈(180)을 통하여 피스톤(500)을 넘나들며, 유로홈(180)의 경우는 상기한 도 2의 유로홈(180)과 동일하게 할 수 있다.The high pressure gas passes through the piston 500 through the flow path groove 180 formed inside the cylinder 100, and the flow path groove 180 may be the same as the flow path groove 180 of FIG. 2. .

유로홈(180)을 통하여 넘나드는 가스 경로의 단면적이 점진적으로 증가되도록 피스톤(500)은 그 단면이 경사지도록 형성한다. 즉, 피스톤(500)의 정방 단면은 원형으로 하나, 측방 단면은 각각의 전단부와 후단부가 경사지게 깎인 형상을 갖도록 한다.The piston 500 is formed such that its cross section is inclined such that the cross-sectional area of the gas path passing through the flow path groove 180 is gradually increased. That is, the square cross section of the piston 500 is circular, but the lateral cross section has a shape in which the front end and the rear end are inclined to be inclined.

실린더(100)의 내측에서 피스톤(500)이 회전되거나 피스톤(500)과 실린 더(100) 사이의 미세 홀이 존재하는 경우를 가정한다면, 피스톤(500)은 그 전단부와 후단부에서 상,하 모두가 대칭되도록 경사를 갖게끔 할 수 있다.Assuming that the piston 500 is rotated inside the cylinder 100 or there is a micro hole between the piston 500 and the cylinder 100, the piston 500 is disposed at the front and rear ends thereof. It can be tilted so that all of them are symmetrical.

또한, 그 경사는 완만한 곡선의 형태이거나 경사가 점점 심해지는 연속된 직선의 형태일 수도 있다. In addition, the slope may be in the form of a gentle curve or in the form of a continuous straight line in which the slope becomes more severe.

도 6은 피스톤의 제1실시예를 나타낸 도면으로서, 피스톤(500)의 전단부와 후단부가 깎인 8각의 단면 형상이다. 피스톤(500)의 기울기가 단부에서 직각이 아닌 깎임 형상으로 되어 있어 e에서 a로 가스가 이동한다고 가정할 경우 c를 지난 가스가 b를 통하여 a로 이동하므로 그 가스 경로의 단면적이 단계적으로 확대되는 것이다. 이를 통하여 가스의 급격한 팽창을 방지하고, 가스리프터의 작동소음을 줄이게 되는 것이다. FIG. 6 is a view showing the first embodiment of the piston, and has an octagonal cross-sectional shape in which the front end and the rear end of the piston 500 are shaved. Assuming that the inclination of the piston 500 is not a right angle at the end but the gas moves from e to a, the cross-sectional area of the gas path is enlarged step by step because the gas past c moves to a through b. will be. This prevents the rapid expansion of the gas, and reduces the operation noise of the gas lifter.

도 7은 피스톤의 제2실시예를 나타낸 도면으로서, 경사진 부분인 b를 완만한 곡선으로 처리한 경우이다. 이 경우 역시 상기의 제1실시예와 마찬가지로 가스 경로의 단면적이 완만히 변화하게 되는 것으로 가스리프터의 작동소음이 줄어든다.Fig. 7 is a view showing a second embodiment of the piston, in which b, which is an inclined portion, is treated with a gentle curve. In this case, too, the cross-sectional area of the gas path is changed gently as in the first embodiment, so that the operation noise of the gas lifter is reduced.

도 8은 피스톤의 제3실시예를 나타낸 도면으로서, 이는 b의 경사 부분을 완만한 곡선으로 처리하고, 그 곡선 부분의 비중을 제2실시예 보다 크게 한 것으로써 타원에 가깝게 처리한 것이다. 상기의 실시예들은 피스톤(500)의 다양한 단면 형상과 경사도를 나타낸 것으로서, 그 구체적인 형상은 당해 가스리프터의 제원과 차량의 게이트 중량에 따라 선택되거나 이와는 달리 실시될 수 있다. FIG. 8 is a view showing a third embodiment of the piston, in which the inclined portion of b is treated with a gentle curve, and the specific gravity of the curved portion is made larger than that of the second embodiment, thereby being closer to an ellipse. The above embodiments show various cross-sectional shapes and inclinations of the piston 500, and the specific shape thereof may be selected or implemented according to the specifications of the gas lifter and the gate weight of the vehicle.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.While the invention has been shown and described with respect to particular embodiments, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit of the invention provided by the following claims. It will be self-evident for those of ordinary knowledge.

도 1은 종래의 차량용 가스리프터의 측방 단면도.1 is a side cross-sectional view of a conventional vehicle gas lifter.

도 2는 도 1에 도시된 가스리프터의 정방 단면도.FIG. 2 is a square sectional view of the gas lifter shown in FIG. 1. FIG.

도 3은 도 2에 도시된 가스리프터의 동작상태를 나타낸 그래프 및 표.Figure 3 is a graph and table showing the operating state of the gas lifter shown in FIG.

도 4는 도 1에 도시된 가스리프터의 피스톤을 나타낸 단면도.4 is a sectional view showing a piston of the gas lifter shown in FIG.

도 5는 본 발명의 일 실시예에 따른 가스리프터의 측방 단면도.Figure 5 is a side cross-sectional view of the gas lifter according to an embodiment of the present invention.

도 6은 도 5에 도시된 가스리프터의 피스톤의 제1실시예를 나타낸 단면도.6 is a cross-sectional view showing a first embodiment of the piston of the gas lifter shown in FIG.

도 7은 도 5에 도시된 가스리프터의 피스톤의 제2실시예를 나타낸 단면도.7 is a sectional view showing a second embodiment of the piston of the gas lifter shown in FIG.

도 8은 도 5에 도시된 가스리프터의 피스톤의 제3실시예를 나타낸 단면도.8 is a sectional view showing a third embodiment of the piston of the gas lifter shown in FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100 : 실린더 300 : 로드 100: cylinder 300: rod

500 : 피스톤500: piston

Claims (3)

적어도 대기압보다 큰 고압의 유체가 충전되고 내면에는 길이방향의 유로홈(180)이 형성된 실린더(100);A cylinder 100 filled with a fluid having a high pressure of at least greater than atmospheric pressure and having an inner flow path groove 180 formed therein; 상기 실린더(100)의 일측에 삽입된 로드(300); 및A rod 300 inserted into one side of the cylinder 100; And 상기 삽입된 로드(300)의 단부에 마련되며, 상기 유로홈(180)을 출입하는 유체의 압력이 완만히 변화되도록 전단부와 후단부가 경사지게 깎인 형상의 단면을 갖는 피스톤(500);을 포함하는 차량용 가스리프터.A piston (500) provided at an end of the inserted rod (300) and having a cross section in which the front end and the rear end are inclined to be inclined so that the pressure of the fluid entering and exiting the flow path groove (180) is gently changed. Gas lifter. 청구항 1에 있어서,The method according to claim 1, 상기 피스톤(500)의 단면은 그 상단부와 하단부가 만곡된 곡선인 것을 특징으로 하는 차량용 가스리프터.The cross section of the piston 500 is a vehicle gas lifter, characterized in that the curved curve of the upper end and the lower end. 청구항 1에 있어서,The method according to claim 1, 상기 피스톤(500)의 단면은 실린더(100) 내면에 접하는 타원형인 것을 특징으로 하는 차량용 가스리프터.Cross section of the piston 500 is a vehicle gas lifter, characterized in that the oval contact with the inner surface of the cylinder (100).
KR1020080066408A 2008-07-09 2008-07-09 Gas-lifter for a vehicle KR100916267B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287479A (en) * 2011-09-01 2011-12-21 谢宁 Double-rod magnetorheological grease damper
CN102297229A (en) * 2011-08-18 2011-12-28 谢宁 Double-outstretch pole magneto-rheological grease damper
CN102418764A (en) * 2011-08-25 2012-04-18 谢宁 Magnetorheological damper with multiple embedded sensors
CN105041956A (en) * 2015-07-20 2015-11-11 常州大学 Double-pole variable-cylinder passive single-control variable-damping magneto-rheological damper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980042992U (en) * 1996-12-24 1998-09-25 박병재 Cylinder for lifter of car
KR100794024B1 (en) 2006-12-15 2008-01-10 현대자동차주식회사 Automobile's lifter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980042992U (en) * 1996-12-24 1998-09-25 박병재 Cylinder for lifter of car
KR100794024B1 (en) 2006-12-15 2008-01-10 현대자동차주식회사 Automobile's lifter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102297229A (en) * 2011-08-18 2011-12-28 谢宁 Double-outstretch pole magneto-rheological grease damper
CN102418764A (en) * 2011-08-25 2012-04-18 谢宁 Magnetorheological damper with multiple embedded sensors
CN102287479A (en) * 2011-09-01 2011-12-21 谢宁 Double-rod magnetorheological grease damper
CN105041956A (en) * 2015-07-20 2015-11-11 常州大学 Double-pole variable-cylinder passive single-control variable-damping magneto-rheological damper

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