JP2000062427A - Damper device equipped with car height adjusting function - Google Patents
Damper device equipped with car height adjusting functionInfo
- Publication number
- JP2000062427A JP2000062427A JP10234071A JP23407198A JP2000062427A JP 2000062427 A JP2000062427 A JP 2000062427A JP 10234071 A JP10234071 A JP 10234071A JP 23407198 A JP23407198 A JP 23407198A JP 2000062427 A JP2000062427 A JP 2000062427A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- pressure medium
- pump
- height adjusting
- vehicle height
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/002—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load by temperature regulation of the suspension unit, e.g. heat operated systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車等の車両の
サスペンションに組込まれる車高調整機能付きダンパ装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device with a vehicle height adjusting function incorporated in a suspension of a vehicle such as an automobile.
【０００２】[0002]
【従来の技術】本願出願人は、先に、この種のダンパ装
置として、特願平９−２７５８１８号により、ダンパ
に、気液変化する圧力媒体を封入した車高調整部を設
け、圧力媒体を加熱気化させて、圧力媒体の蒸気圧によ
りダンパを伸び側に動作させ、車高を上げるようにした
ものを提案した。2. Description of the Related Art The applicant of the present application has previously proposed, as a damper device of this type, a vehicle height adjusting portion in which a pressure medium that changes gas-liquid is enclosed in the damper according to Japanese Patent Application No. 9-275818. It was proposed that the vehicle height be increased by heating and vaporizing the vehicle and operating the damper toward the extension side by the vapor pressure of the pressure medium.
【０００３】[0003]
【発明が解決しようとする課題】上記先願のダンパ装置
は、外気温が高くなると、車高調整部に封入した圧力媒
体の蒸気圧が上昇して、車高が高くなってしまう。In the damper device of the above-mentioned prior application, when the outside air temperature becomes high, the vapor pressure of the pressure medium enclosed in the vehicle height adjusting section rises, and the vehicle height becomes high.
【０００４】本発明は、以上の点に鑑み、高温時に車高
が高くなることを防止し得るようにした上記先願のダン
パ装置の改良装置を提供することを課題としている。In view of the above points, an object of the present invention is to provide an improved apparatus for the damper device of the above-mentioned prior application, which is capable of preventing the vehicle height from increasing at a high temperature.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決すべく、
本発明は、ダンパに、気液変化する圧力媒体を封入した
車高調整部を設け、圧力媒体を加熱気化させて、圧力媒
体の蒸気圧によりダンパを伸び側に動作させるようにし
た車高調整機能付きダンパ装置において、車高調整部に
形成したジャケット部と、冷却液を貯えるリザーブタン
クと、ジャケット部とリザーブタンクとの間に冷却液を
循環させるポンプとから成る冷却手段を備えている。[Means for Solving the Problems] In order to solve the above problems,
The present invention provides a vehicle height adjusting unit in which a damper is provided with a vehicle height adjusting unit in which a pressure medium that changes gas-liquid is enclosed, the pressure medium is heated and vaporized, and the damper is operated toward the extension side by the vapor pressure of the pressure medium. The damper device with a function is provided with a cooling means including a jacket portion formed in the vehicle height adjusting portion, a reserve tank for storing the cooling liquid, and a pump for circulating the cooling liquid between the jacket portion and the reserve tank.
【０００６】ポンプを作動させるとリザーブタンクから
の冷却液がジャケット部に流れ、車高調整部に封入した
圧力媒体が冷却されて凝縮し、圧力媒体の蒸気圧が低下
する。かくて、外気温が高くなったときにポンプを作動
させることにより、高温時に車高が高くなることを防止
できる。When the pump is operated, the cooling liquid from the reserve tank flows into the jacket, the pressure medium sealed in the vehicle height adjusting section is cooled and condensed, and the vapor pressure of the pressure medium decreases. Thus, by operating the pump when the outside air temperature becomes high, it is possible to prevent the vehicle height from increasing at a high temperature.
【０００７】ところで、ポンプとリザーブタンクとを車
体側に設けると、メンテナンス時のダンパの着脱作業に
際し、ジャケット部とポンプ及びリザーブタンクとの間
の配管をジャケット部から外す必要があって、その作業
に手間がかかり、メンテナンス性が悪くなる。これに対
し、ポンプの吸込口にリザーブタンクの冷却液の出口を
直結して、ポンプとリザーブタンクとを機械的に結合さ
れた単一のユニットとして構成し、このユニットをダン
パに取付けるようにすれば、配管を外すことなくダンパ
を着脱でき、メンテナンス性が向上し、更に、ポンプと
リザーブタンクとを個別にダンパに取付ける必要がな
く、ダンパの組立性も向上する。By the way, if the pump and the reserve tank are provided on the vehicle body side, it is necessary to remove the pipe between the jacket portion and the pump and the reserve tank from the jacket portion when the damper is attached and detached during maintenance. Takes time and maintenance becomes worse. On the other hand, by connecting the outlet of the reserve tank coolant directly to the suction port of the pump, configure the pump and the reserve tank as a single mechanically connected unit, and install this unit in the damper. For example, the damper can be attached and detached without removing the pipes, the maintainability is improved, and further, the pump and the reserve tank do not need to be separately attached to the damper, and the damper assemblability is also improved.
【０００８】また、リザーブタンクを内筒と外筒とから
成る内外２重構造に構成して、ジャケット部から戻され
た冷却液が内筒と外筒との間の外周空間を経由して内筒
の内周空間に流入するよう構成すると共に、外筒の外周
面に放熱フィンを突設すれば、ジャケット部での熱交換
で温められた冷却液が外周空間を流れる間に放熱フィン
からの放熱で冷却され、リザーブタンクが冷却液の冷却
用熱交換として機能する。かくて、特別の冷却用熱交換
器を設けずに、圧力媒体の冷却効率を向上できる。Further, the reserve tank is constructed in an inner-outer double structure consisting of an inner cylinder and an outer cylinder, and the cooling liquid returned from the jacket portion is transferred to the inner space via the outer peripheral space between the inner cylinder and the outer cylinder. If it is configured to flow into the inner peripheral space of the cylinder, and if the heat radiating fins are provided so as to project from the outer peripheral surface of the outer cylinder, the cooling liquid heated by heat exchange in the jacket will flow from the heat radiating fins while flowing through the outer peripheral space. Cooled by heat dissipation, the reserve tank functions as heat exchange for cooling the cooling liquid. Thus, the cooling efficiency of the pressure medium can be improved without providing a special heat exchanger for cooling.
【０００９】[0009]
【発明の実施の形態】図１を参照して、１は筒状のダン
パ本体であり、ダンパ本体１内に下方からダンパロッド
２を上下動自在に挿入している。ダンパロッド２の上端
にはオリフィス孔３ａを有するダンパピストン３が取付
けられており、ダンパ本体１内に、ダンパピストン３を
挿入する油室４と、油室４に対しフリーピストン５で仕
切られた上部のガス室６とを形成し、倒立式油圧ダンパ
を構成している。そして、ダンパ本体１をその上端に取
付けたブラケット７を介して車体に連結すると共に、ダ
ンパピストン３をその下端に取付けたブッシュ８を介し
てばね下部材に連結し、ばね下部材の上下方向の振動に
対する減衰力を得られるようにしている。更に、ブラケ
ット７の下側にバンプストップラバー９を設けると共
に、ダンパピストン３の下側にリバウンドストップラバ
ー１０を設けて、ダンパのバンプ動作（縮み動作）とリ
バウンド動作（伸び動作）とに対するストッパ機能を得
られるようにしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a cylindrical damper body into which a damper rod 2 is vertically movably inserted. A damper piston 3 having an orifice hole 3a is attached to the upper end of the damper rod 2, and an oil chamber 4 into which the damper piston 3 is inserted and a free piston 5 are separated from the oil chamber 4 in the damper body 1. The upper gas chamber 6 is formed to form an inverted hydraulic damper. The damper body 1 is connected to the vehicle body via the bracket 7 attached to the upper end thereof, and the damper piston 3 is connected to the unsprung member via the bush 8 attached to the lower end of the damper body 1 in the vertical direction of the unsprung member. The damping force against vibration is obtained. Further, a bump stop rubber 9 is provided below the bracket 7, and a rebound stop rubber 10 is provided below the damper piston 3 to provide a stopper function for the bump operation (shrinking operation) and rebound operation (extending operation) of the damper. I am trying to get it.
【００１０】また、ダンパには、気液変化するＲ１３４
ａ，Ｒ１５２ａ等の低沸点の圧力媒体を封入した車高調
整部１１が設けられている。車高調整部１１は、ダンパ
本体１の外側に上下動自在に設けた筒状のケース１２を
その下端部においてダンパロッド２に気密に連結して構
成されている。ケース１２は、ダンパ本体１の外周に上
下１対のガイドリング１２ａ，１２ａを介して摺接して
おり、更に、ケース１２の上端にダンパ本体１とケース
１２との間の隙間をシールするシール部材１２ｂを取付
けて、ダンパ本体１とケース１２との間に密閉された圧
力室１３を画成し、この圧力室１３に潤滑用のオイルを
混入した圧力媒体を封入している。また、ケース１２の
中間部外周にばね受け１４を取付けて、ばね受け１４と
ブラケット７との間にサスペンションスプリング１５を
介設している。Further, the damper has a R134 that changes gas-liquid.
The vehicle height adjusting unit 11 in which a low boiling point pressure medium such as a or R152a is enclosed is provided. The vehicle height adjusting unit 11 is configured by air-tightly connecting a cylindrical case 12 provided on the outside of the damper body 1 so as to be vertically movable to the damper rod 2 at a lower end portion thereof. The case 12 is in sliding contact with the outer periphery of the damper body 1 via a pair of upper and lower guide rings 12a, 12a, and further, a sealing member that seals a gap between the damper body 1 and the case 12 at the upper end of the case 12. 12b is attached to define a sealed pressure chamber 13 between the damper body 1 and the case 12, and a pressure medium containing lubricating oil is enclosed in the pressure chamber 13. Further, the spring bearing 14 is attached to the outer periphery of the middle portion of the case 12, and the suspension spring 15 is provided between the spring bearing 14 and the bracket 7.
【００１１】圧力室１３の底部には、ディーゼルエンジ
ンのグロープラグとして使用されている公知のプラグ式
ヒータ１６と温度センサ１７とが設けられている。ヒー
タ１６に通電すると、圧力室１３内の液相の冷媒が加熱
気化されて、圧力室１３内の蒸気圧が上昇し、ダンパ本
体１に対しダンパロッド２が蒸気圧により押し下げられ
て、車高が上がる。ここで、圧力室１３内の圧力媒体の
蒸気圧と圧力媒体の温度との間には一定の相関関係が成
立し、圧力媒体の温度は、圧力媒体の蒸気圧に応じて変
化する車高を表わすパラメータとなる。そこで、ヒータ
１６への通電を制御する車載コンピュータから成るコン
トローラ１８に、温度センサ１７からの信号と車高設定
器１９からの信号とを入力し、車高設定器１９で設定さ
れた車高に相当する圧力媒体の温度と温度センサ１７の
検出温度とを比較し、両者の偏差が零になるようにヒー
タ１６への通電をフィードバック制御している。A well-known plug type heater 16 used as a glow plug of a diesel engine and a temperature sensor 17 are provided at the bottom of the pressure chamber 13. When the heater 16 is energized, the liquid-phase refrigerant in the pressure chamber 13 is heated and vaporized, the vapor pressure in the pressure chamber 13 rises, and the damper rod 2 is pushed down by the vapor pressure with respect to the damper body 1 to increase the vehicle height. Goes up. Here, a certain correlation is established between the vapor pressure of the pressure medium and the temperature of the pressure medium in the pressure chamber 13, and the temperature of the pressure medium is a vehicle height that changes according to the vapor pressure of the pressure medium. It is a parameter to represent. Therefore, the signal from the temperature sensor 17 and the signal from the vehicle height setting device 19 are input to a controller 18 which is an on-vehicle computer that controls the energization of the heater 16, and the vehicle height set by the vehicle height setting device 19 is set. The temperature of the corresponding pressure medium is compared with the temperature detected by the temperature sensor 17, and the energization to the heater 16 is feedback-controlled so that the difference between the two is zero.
【００１２】ところで、外気温が高くなると、圧力室１
３内の圧力媒体の蒸気圧が高くなり、車高が高くなって
しまう。そこで、車高調整部１１にジャケット部２０を
形成すると共に、水等の冷却液を貯えるリザーブタンク
２１と、ポンプ２２とを設け、ジャケット部２０とリザ
ーブタンク２１との間にポンプ２２により冷却液を循環
させて圧力媒体を冷却する冷却手段を構成している。ポ
ンプ２２はコントローラ１８で制御されるようになって
おり、車高設定器１９で設定された車高に相当する圧力
媒体の温度より温度センサ１７の検出温度が高くなった
とき、ポンプ２２を作動させて圧力媒体を冷却し、蒸気
圧を下げて車高を設定高さに維持できるようにしてい
る。By the way, when the outside air temperature rises, the pressure chamber 1
The vapor pressure of the pressure medium in 3 becomes high, and the vehicle height becomes high. Therefore, a jacket portion 20 is formed in the vehicle height adjusting portion 11, a reserve tank 21 for storing a cooling liquid such as water and a pump 22 are provided, and the cooling liquid is pumped by the pump 22 between the jacket portion 20 and the reserve tank 21. It constitutes a cooling means for circulating the pressure medium to cool the pressure medium. The pump 22 is controlled by the controller 18, and operates when the temperature detected by the temperature sensor 17 is higher than the temperature of the pressure medium corresponding to the vehicle height set by the vehicle height setter 19. By doing so, the pressure medium is cooled and the vapor pressure is lowered to maintain the vehicle height at the set height.
【００１３】ジャケット部２０は、ケース１２に内嵌さ
せた樹脂製スリーブ２０ａの内周面の環状凹部を、樹脂
製スリーブ２０ａに内嵌させた熱伝導性及び耐食性に優
れたアルミ等の金属製スリーブ２０ｂで液密に覆うこと
により構成され、ジャケット部２０に流れる冷却液と圧
力媒体との間での金属製スリーブ２０ｂを介しての熱交
換で圧力媒体を冷却するようにしている。The jacket portion 20 is made of a metal such as aluminum having excellent heat conductivity and corrosion resistance in which the annular recess on the inner peripheral surface of the resin sleeve 20a fitted in the case 12 is fitted in the resin sleeve 20a. The sleeve 20b is liquid-tightly covered, and the pressure medium is cooled by heat exchange between the coolant flowing in the jacket portion 20 and the pressure medium via the metal sleeve 20b.
【００１４】ケース１２には、ジャケット部２０に連通
する流入側と流出側の接続口２０ｃ，２０ｄが設けられ
ており、流出側接続口２０ｄをリザーブタンク２１の冷
却液の入口２１ａに配管部材２３1を介して接続すると
共に、流入側接続口２０ｃをポンプ２２の吐出口２２ａ
に配管部材２３2を介して接続し、冷却液がジャケット
部２０からリザーブタンク２１とポンプ２２とを介して
ジャケット部に還流されるようにしている。The case 12 is provided with inflow-side and outflow-side connection ports 20c and 20d communicating with the jacket portion 20, and the outflow-side connection port 20d is connected to the coolant inlet 21a of the reserve tank 21 through the piping member 23. 1 and the inlet side connection port 20c is connected to the discharge port 22a of the pump 22.
To connect via the piping member 23 2, the cooling fluid is to be circulated to the jacket part from the jacket portion 20 via the reserve tank 21 and the pump 22.
【００１５】ここで、リザーブタンク２１とポンプ２２
とを車体側に設けることも可能であるが、これではメン
テナンス時のダンパの着脱作業に際し、配管部材２
３1，２３2を接続口２０ｃ，２０ｄから外すことが必要
になり、メンテナンス性が悪くなる。そこで、本実施形
態では、ダンパにリザーブタンク２１とポンプ２２とを
取付けて、配管部材２３1，２３2を外すことなくダンパ
を着脱できるようにしている。Here, the reserve tank 21 and the pump 22
Although it is possible to provide the pipe member on the vehicle body side, it is possible to use the pipe member 2 when attaching and detaching the damper during maintenance.
It becomes necessary to remove 3 1 , 23 2 from the connection ports 20c, 20d, which deteriorates maintainability. Therefore, in this embodiment, the reserve tank 21 and the pump 22 are attached to the damper so that the damper can be attached and detached without removing the pipe members 23 1 and 23 2 .
【００１６】更に、本実施形態では、図２に示す如く、
ポンプ２２の上面の吸込口２２ｂにリザーブタンク２１
の底面の出口２１ｂを直結して、ポンプ２２とリザーブ
タンク２１とを機械的に連結された単一のユニットとし
て構成し、このユニットをケース１２の外面にブラケッ
ト２４を介して取付けている。これによれば、ポンプ２
２とリザーブタンク２１とを個別にダンパに取付ける必
要がなく、ダンパの組立性が向上する。図中２２ｃはポ
ンプモータである。Further, in this embodiment, as shown in FIG.
The reserve tank 21 is attached to the suction port 22b on the upper surface of the pump 22.
The pump 21 and the reserve tank 21 are configured as a single unit that is mechanically connected by directly connecting the outlet 21b on the bottom surface of the case 12, and this unit is attached to the outer surface of the case 12 via the bracket 24. According to this, the pump 2
2 and the reserve tank 21 do not need to be separately attached to the damper, and the ease of assembly of the damper is improved. In the figure, 22c is a pump motor.
【００１７】リザーブタンク２１は、内筒２１０と外筒
２１１とから成る内外２重構造に構成されており、外筒
２１１の上端に施すキャップ２１２と内筒２１０の上端
との間に隙間を確保し、内筒２１０と外筒２１１との間
の外周空間２１３をこの隙間を介して内筒２１０の内周
空間２１４に連通させている。そして、リザーブタンク
２１の入口２１ａを外周空間２１３の下端部に連通する
ように形成すると共に、リザーブタンク２１の出口２１
ｂを内周空間２１４の下端部に連通するように形成し、
ジャケット部２０からの冷却液が外周空間２１３を経由
して内周空間２１４に流入し、出口２１ｂからポンプ２
２に吸込まれるようにしている。外筒２１１の外周面に
は多数の放熱フィン２１５が突設されており、かくて、
ジャケット部２０での熱交換で温められた冷却液は外周
空間２１３を流れる間に放熱フィン２１５からの放熱で
冷却され、冷却された冷却液が内周空間２１４からポン
プ２２を介してジャケット部２０に還流され、圧力媒体
が効率良く冷却される。これによれば、冷却液を冷却す
る特別の冷却用熱交換器を設けずに済み、スペース的及
びコスト的に有利である。また、本実施形態では、外周
空間２１３に、螺旋ガイド２１６により螺旋状の流路を
形成し、流路長さを長くして外周空間２１３における冷
却液の冷却効率を向上させている。尚、リザーブタンク
２１の容量によっては放熱フィン２１５を省略すること
も可能である。The reserve tank 21 has an inner-outer double structure consisting of an inner cylinder 210 and an outer cylinder 211, and a gap is secured between a cap 212 applied to the upper end of the outer cylinder 211 and the upper end of the inner cylinder 210. The outer peripheral space 213 between the inner cylinder 210 and the outer cylinder 211 communicates with the inner peripheral space 214 of the inner cylinder 210 through this gap. The inlet 21a of the reserve tank 21 is formed so as to communicate with the lower end of the outer peripheral space 213, and the outlet 21 of the reserve tank 21 is formed.
b is formed so as to communicate with the lower end of the inner peripheral space 214,
The cooling liquid from the jacket portion 20 flows into the inner peripheral space 214 via the outer peripheral space 213, and the pump 2 is discharged from the outlet 21b.
I'm trying to be sucked into 2. A large number of heat radiation fins 215 are provided on the outer peripheral surface of the outer cylinder 211, and thus,
The cooling liquid warmed by heat exchange in the jacket portion 20 is cooled by the heat radiation from the radiation fins 215 while flowing through the outer peripheral space 213, and the cooled cooling liquid is passed from the inner peripheral space 214 through the pump 22 to the jacket portion 20. And the pressure medium is efficiently cooled. According to this, it is not necessary to provide a special cooling heat exchanger for cooling the cooling liquid, which is advantageous in terms of space and cost. Further, in the present embodiment, the spiral guide 216 forms a spiral flow path in the outer peripheral space 213, and the flow path length is increased to improve the cooling efficiency of the cooling liquid in the outer peripheral space 213. The heat radiation fins 215 may be omitted depending on the capacity of the reserve tank 21.
【００１８】以上、油圧ダンパに本発明を適用した実施
形態について説明したが、油圧ダンパ以外の摩擦ダンパ
といった他のダンパにも同様に本発明を適用できる。Although the embodiment in which the present invention is applied to the hydraulic damper has been described above, the present invention can be similarly applied to other dampers such as a friction damper other than the hydraulic damper.
【００１９】[0019]
【発明の効果】以上の説明から明らかなように、本発明
によれば、ジャケット部に冷却液を流すことで圧力媒体
を冷却してその蒸気圧を下げることができ、高温時に車
高が高くなることを防止できる。As is apparent from the above description, according to the present invention, the pressure medium can be cooled by flowing the cooling liquid through the jacket portion to reduce the vapor pressure thereof, and the vehicle height becomes high at high temperatures. Can be prevented.
【図１】本発明装置の一例の半部截断側面図FIG. 1 is a cutaway side view of an example of a device of the present invention.
【図２】図１のII−II線拡大截断面図2 is an enlarged sectional view taken along line II-II of FIG.
１１ 車高調整部 ２０ ジャケッ
ト部
２１ リザーブタンク ２１ｂ 出口
２１０ 内筒 ２１１ 外筒
２１３ 外周空間 ２１４ 内周空
間
２１５ 放熱フィン ２２ ポンプ
２２ｂ 吸込口11 Vehicle Height Adjusting Part 20 Jacket Part 21 Reserve Tank 21b Outlet 210 Inner Cylinder 211 Outer Cylinder 213 Outer Perimeter Space 214 Inner Perimeter Space 215 Radiating Fin 22 Pump 22b Suction Port
Claims (3)
た車高調整部を設け、圧力媒体を加熱気化させて、圧力
媒体の蒸気圧によりダンパを伸び側に動作させるように
した車高調整機能付きダンパ装置において、 車高調整部に形成したジャケット部と、冷却液を貯える
リザーブタンクと、ジャケット部とリザーブタンクとの
間に冷却液を循環させるポンプとから成る冷却手段を備
え、ジャケット部に流れる冷却液により圧力媒体を冷却
することを特徴とする車高調整機能付きダンパ装置。1. A vehicle height control system in which a damper is provided with a vehicle height adjusting section in which a pressure medium that changes gas-liquid is enclosed, the pressure medium is heated and vaporized, and the damper is operated toward the extension side by the vapor pressure of the pressure medium. A damper device with an adjusting function is provided with a cooling means including a jacket portion formed in a vehicle height adjusting portion, a reserve tank for storing a cooling liquid, and a pump for circulating the cooling liquid between the jacket portion and the reserve tank. A damper device with a vehicle height adjusting function, characterized in that a pressure medium is cooled by a cooling liquid flowing through a portion.
の出口を直結して、ポンプとリザーブタンクとを機械的
に結合された単一のユニットとして構成し、このユニッ
トをダンパに取付けることを特徴とする請求項１に記載
の車高調整機能付きダンパ装置。2. A pump and a reserve tank are directly connected to a suction port of the pump so as to constitute the pump and the reserve tank as a single unit which is mechanically coupled, and this unit is attached to a damper. The damper device with a vehicle height adjusting function according to claim 1.
外２重構造に構成して、ジャケット部から戻された冷却
液が内筒と外筒との間の外周空間を経由して内筒の内周
空間に流入するよう構成すると共に、外筒の外周面に放
熱フィンを突設することを特徴とする請求項１又は２に
記載の車高調整機能付きダンパ装置。3. A reserve tank having an inner-outer double structure composed of an inner cylinder and an outer cylinder, wherein the cooling liquid returned from the jacket portion passes through an outer peripheral space between the inner cylinder and the outer cylinder to form an internal space. The damper device with a vehicle height adjusting function according to claim 1 or 2, wherein the damper device is configured so as to flow into the inner peripheral space of the cylinder, and a heat radiation fin is projectingly provided on the outer peripheral surface of the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10234071A JP2000062427A (en) | 1998-08-20 | 1998-08-20 | Damper device equipped with car height adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10234071A JP2000062427A (en) | 1998-08-20 | 1998-08-20 | Damper device equipped with car height adjusting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000062427A true JP2000062427A (en) | 2000-02-29 |
Family
ID=16965145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10234071A Withdrawn JP2000062427A (en) | 1998-08-20 | 1998-08-20 | Damper device equipped with car height adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000062427A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007168669A (en) * | 2005-12-22 | 2007-07-05 | Showa Corp | Suspension spring adjuster for hydraulic shock absorber |
| EP2052889B1 (en) * | 2007-10-26 | 2016-06-15 | Strömsholmen AB | Hydropneumatic spring-damping device and method of operation of a hydropneumatic spring-damping device |
| JP2019005804A (en) * | 2017-06-28 | 2019-01-17 | 日立オートモティブシステムズ株式会社 | Manufacturing method of cylinder device, and cylinder device |
| US11999210B2 (en) | 2019-10-25 | 2024-06-04 | Iljin Motion & Control Gmbh | Electromechanical vehicle height adjustment unit and vehicle height adjustment method |
-
1998
- 1998-08-20 JP JP10234071A patent/JP2000062427A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007168669A (en) * | 2005-12-22 | 2007-07-05 | Showa Corp | Suspension spring adjuster for hydraulic shock absorber |
| JP4669389B2 (en) * | 2005-12-22 | 2011-04-13 | 株式会社ショーワ | Suspension spring adjustment device for hydraulic shock absorber |
| EP2052889B1 (en) * | 2007-10-26 | 2016-06-15 | Strömsholmen AB | Hydropneumatic spring-damping device and method of operation of a hydropneumatic spring-damping device |
| JP2019005804A (en) * | 2017-06-28 | 2019-01-17 | 日立オートモティブシステムズ株式会社 | Manufacturing method of cylinder device, and cylinder device |
| US11999210B2 (en) | 2019-10-25 | 2024-06-04 | Iljin Motion & Control Gmbh | Electromechanical vehicle height adjustment unit and vehicle height adjustment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20051101 |