JPH0330721B2 - - Google Patents
Info
- Publication number
- JPH0330721B2 JPH0330721B2 JP59200553A JP20055384A JPH0330721B2 JP H0330721 B2 JPH0330721 B2 JP H0330721B2 JP 59200553 A JP59200553 A JP 59200553A JP 20055384 A JP20055384 A JP 20055384A JP H0330721 B2 JPH0330721 B2 JP H0330721B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- compressor
- air pressure
- switch
- pressure switch
- 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.)
- Expired - Lifetime
Links
- 230000003111 delayed effect Effects 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 6
- 230000004913 activation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Vehicle Body Suspensions (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はリザーバタンク装置、例えば車高調整
装置の圧力源として用いられるリザーバタンク装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a reservoir tank device, for example, a reservoir tank device used as a pressure source for a vehicle height adjustment device.
［従来の技術］
車高調整装置の圧力源としては、従来から第４
図に示すリザーバタンク装置が一般に用いられて
いる。図に基づいて説明すればコンプレツサ１で
圧縮された空気はドライヤ２で除湿・脱脂されて
蓄圧タンク３に蓄圧され、ソレノイドバルブ４を
介してサスペンシヨンの空気室（図示せず）に送
られる。蓄圧タンク３には空気圧が異常に高圧に
なる事を防ぐリリーフバルブ５と空気圧で切換動
作を行う接点を内蔵した圧力スイツチ６とが備わ
つている。圧力スイツチ６はコンプレツサ１の作
動・停止を行うためのものであり、この動作は演
算回路７を介して行われる。演算回路７はコンプ
レツサ１の作動・停止のみならず、他からの信号
を受けてソレノイドバルブ４の開閉も行う。[Prior art] As a pressure source for a vehicle height adjustment device, the fourth pressure source has traditionally been used.
The reservoir tank device shown in the figure is commonly used. To explain based on the figure, air compressed by a compressor 1 is dehumidified and degreased by a dryer 2, stored in a pressure storage tank 3, and sent to an air chamber (not shown) of the suspension via a solenoid valve 4. The pressure storage tank 3 is equipped with a relief valve 5 that prevents air pressure from becoming abnormally high and a pressure switch 6 that has a built-in contact that performs a switching operation using air pressure. The pressure switch 6 is for operating and stopping the compressor 1, and this operation is performed via the arithmetic circuit 7. The arithmetic circuit 7 not only operates and stops the compressor 1, but also opens and closes the solenoid valve 4 in response to signals from other sources.
このリザーバタンク装置に用いられている圧力
スイツチ６は第５図に示す如く構成されている。
圧力スイツチ６はダイアフラム６１で仕切られて
おり、図の右側には蓄圧タンク内の空気圧が作用
し、左側にはスプリング６２の力がスプリング受
け６３およびロツド６４を介して作用する。更に
ダイアフラム６１とロツド６４との間にはスナツ
プ板６５が配設され、このスナツプ板６５のバツ
クリングによりヒステリシスが生じるようにされ
ている。接点６６は２本のリード線６７，６７に
接続されたターミナル６８，６８とスプリング受
け６３とで構成される。 The pressure switch 6 used in this reservoir tank device is constructed as shown in FIG.
The pressure switch 6 is partitioned by a diaphragm 61, and the air pressure in the pressure storage tank acts on the right side of the figure, and the force of a spring 62 acts on the left side through a spring receiver 63 and a rod 64. Further, a snap plate 65 is disposed between the diaphragm 61 and the rod 64, and hysteresis is generated by buckling the snap plate 65. The contact 66 is composed of terminals 68, 68 connected to two lead wires 67, 67, and a spring receiver 63.
この圧力スイツチ６特性が第６図に示されてい
る。接点６６が閉の状態ではスナツプ板６５が右
側にそつくり返つているので蓄圧タンク３の空気
圧Ｐに抵抗する。このスナツプ板６５の抵抗とス
プリング６２の作用力に打ち勝つ圧力、P1にな
つたときに接点６６が開となる。開の状態では、
スナツプ板６５が左側にそつくり返つて、スプリ
ング６２に作用する。従つて、このスナツプ板６
５に相当するだけ設定圧Ｐが低下し、蓄圧タンク
３内の空気圧ＰがP2となつたときに接点６６が
閉となる。 The characteristics of this pressure switch 6 are shown in FIG. When the contact 66 is closed, the snap plate 65 is tilted back to the right and resists the air pressure P in the accumulator tank 3. When the pressure that overcomes the resistance of the snap plate 65 and the acting force of the spring 62 reaches P1 , the contact point 66 opens. In the open state,
The snap plate 65 is bent back to the left and acts on the spring 62. Therefore, this snap plate 6
When the set pressure P decreases by an amount corresponding to 5 and the air pressure P in the pressure accumulator tank 3 reaches P2 , the contact 66 closes.
第７図は、このリザーバタンク装置のタイムチ
ヤートである。Ａ領域は蓄圧タンク３の空気圧Ｐ
がP1より低い状態で、圧力スイツチ６の接点６
６が閉になつている。接点６６の閉信号を受けて
演算回路７はコンプレツサ１を作動させる。コン
プレツサ１で圧縮された空気が蓄圧タンク３内に
蓄圧され、空気圧Ｐが徐々に上がる。Ｂ領域は蓄
圧タンク３内の空気圧が設定圧P1に達し、この
圧力P1で圧力スイツチ６の接点６６が開にされ、
演算回路７を介してコンプレツサ１の作動が停止
された状態である。Ｃ領域は演算回路７に入力さ
れた他の信号によりソレノイドバルブ４が開とな
り蓄圧タンク３の空気圧Ｐが下つている状態であ
る。Ｄ領域は蓄圧タンク３内の空気圧ＰがP2ま
で下がり圧力スイツチ６の接点６６が閉となつ
て、演算回路７より再びコンプレツサ１が作動さ
れた状態である。 FIG. 7 is a time chart of this reservoir tank device. Area A is the air pressure P of the pressure accumulator tank 3.
is lower than P 1 , contact 6 of pressure switch 6
6 is closed. In response to the closing signal from the contact 66, the arithmetic circuit 7 operates the compressor 1. The air compressed by the compressor 1 is stored in the pressure storage tank 3, and the air pressure P gradually increases. In region B, the air pressure in the pressure storage tank 3 reaches the set pressure P1 , and at this pressure P1 the contact 66 of the pressure switch 6 is opened.
This is a state in which the operation of the compressor 1 is stopped via the arithmetic circuit 7. Region C is a state in which the solenoid valve 4 is opened by another signal input to the arithmetic circuit 7, and the air pressure P in the pressure accumulator tank 3 is decreasing. In region D, the air pressure P in the accumulator tank 3 drops to P2 , the contact 66 of the pressure switch 6 is closed, and the compressor 1 is operated again by the arithmetic circuit 7.
［発明が解決しようとする問題点］
従来のリザーバタンク装置はコンプレツサの作
動領域で作動・停止が頻繁におこらないように、
接点の開閉動作にヒステリシスを設けた圧力スイ
ツチを用いている。この圧力スイツチのヒステリ
シスはスナツプ板により行われるものであり、そ
の板厚は応力上薄く、その動作範囲も狭くする必
要があつた。またヒステリシスの幅を公差内にお
さえるためにはスナツプ板の寸法、動作範囲、そ
の他関連部品に厳密な制度が要求された。[Problems to be solved by the invention] Conventional reservoir tank devices are designed to prevent frequent activation and stoppage in the compressor operating area.
A pressure switch with hysteresis is used in the opening and closing operations of the contacts. The hysteresis of this pressure switch is provided by a snap plate, which is thin due to stress and requires a narrow operating range. In addition, in order to keep the width of hysteresis within tolerance, strict precision was required for the dimensions of the snap plate, the operating range, and other related parts.
本発明は上記問題点を解消するためになされた
ものであり、コンプレツサの作動領域におけるハ
ンチングを電気回路的に防止することを目的とす
る。 The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to prevent hunting in the operating region of a compressor using an electrical circuit.
［問題点を解決するための技術的手段］
本発明のリザーバタンク装置は、空気圧を発生
するコンプレツサと、該コンプレツサからの空気
圧を蓄圧する蓄圧タンクと、該蓄圧タンクの空気
圧の一の所定値で作動する圧力スイツチと、前記
蓄圧タンクの空気圧が前記一の所定値以下に下降
したとき前記コンプレツサを起動する起動手段
と、前記蓄圧タンクの空気圧が前記一の所定値以
上に上昇したときから所定時間経過後に遅延停止
信号を発生する遅延停止信号手段と、前記遅延停
止信号の発生時に前記コンプレツサを停止させる
停止手段と、を備える。蓄圧タンクにはリリーフ
バルブを設けることが好ましく、この場合圧力ス
イツチの作動する所定値より高い第二の所定値で
作動させて過度の圧力上昇を防止する。[Technical means for solving the problem] The reservoir tank device of the present invention includes a compressor that generates air pressure, an accumulator tank that accumulates the air pressure from the compressor, and a predetermined value of the air pressure of the accumulator tank. a pressure switch that operates, a starting means that starts the compressor when the air pressure in the pressure accumulator tank falls below the first predetermined value, and a predetermined period of time from when the air pressure in the pressure accumulation tank rises above the first predetermined value. The compressor includes a delay stop signal means for generating a delayed stop signal after the delay has elapsed, and a stop means for stopping the compressor when the delayed stop signal is generated. Preferably, the pressure accumulator tank is provided with a relief valve, in which case the pressure switch is operated at a second predetermined value higher than the predetermined value at which the pressure switch is activated to prevent excessive pressure rise.
［作用］
これによれば、コンプレツサが作動して蓄圧タ
ンクの空気圧が上昇して、圧力スイツチの動作圧
である所定圧に達すると、圧力スイツチが開とな
つて、コンプレツサの停止信号が遅延停止信号発
生手段（例えば演算回路、以下演算回路と呼ぶ）
に入力される。演算回路はこの信号から所定時間
遅らせてコンプレツサの作動を停止させる。逆
に、蓄圧タンク内の空気が消費されることによつ
て圧力が前記所定圧まで下がると、圧力スイツチ
が閉となり、コンプレツサの作動信号が演算回路
に出力されるが、この時にはコンプレツサを直ち
に作動させる。[Operation] According to this, when the compressor operates and the air pressure in the pressure storage tank increases and reaches a predetermined pressure, which is the operating pressure of the pressure switch, the pressure switch opens and the compressor stop signal is delayed and stopped. Signal generation means (e.g. arithmetic circuit, hereinafter referred to as arithmetic circuit)
is input. The arithmetic circuit stops the operation of the compressor after a predetermined time delay from this signal. Conversely, when the air in the pressure storage tank is consumed and the pressure drops to the predetermined pressure, the pressure switch closes and a compressor activation signal is output to the calculation circuit, but at this time the compressor cannot be activated immediately. let
従つて、圧力スイツチがコンプレツサの停止信
号を演算回路に出力した時には、この信号を所定
時間遅らせて出力し、逆に圧力スイツチがコンプ
レツサの作動信号を演算回路に出力した時には、
直ちにコンプレツサを作動させることにより、コ
ンプレツサの作動領域におけるハンチングを防止
できる。コンプレツサの停止時期を所定時間遅ら
せることにより、蓄圧タンク内の空気圧を所定圧
に保つことができるならば、リリーフバルブを作
動させることなく行い、またリリーフバルブの動
作圧を所定圧にし、コンプレツサの遅延時間内に
所定圧を越えるようにして、蓄圧タンク内の空気
圧を所定圧P1にすることもできる。 Therefore, when the pressure switch outputs a compressor stop signal to the arithmetic circuit, this signal is delayed by a predetermined time and is output, and conversely, when the pressure switch outputs a compressor operation signal to the arithmetic circuit,
By immediately operating the compressor, hunting in the operating region of the compressor can be prevented. If it is possible to maintain the air pressure in the pressure storage tank at a predetermined pressure by delaying the compressor's stop timing by a predetermined period of time, this can be done without activating the relief valve, or by setting the operating pressure of the relief valve to a predetermined pressure and delaying the compressor. The air pressure in the pressure accumulator tank can also be brought to the predetermined pressure P1 by exceeding the predetermined pressure within a certain time.
第１図はリリーフバルブを作動させて、蓄圧タ
ンク内の空気圧を所定圧にする場合のリザーバタ
ンク装置のタイムチヤートを示したものである。
蓄圧タンクの空気圧がP2になつて圧力スイツチ
が開になり、コンプレツサの停止信号が演算回路
に入力される。演算回路はこの信号から所定時間
遅らせてコンプレツサの作動を停止させる。この
間にリリーフバルブが作用し、蓄圧タンク内の空
気圧が所定圧P1に保持される。蓄圧タンク内の
空気が消費されることによつて圧力がP2まで下
がると、再び圧力スイツチが閉となり、コンプレ
ツサの作動信号が演算回路に出力され、コンプレ
ツサがただちに作動する。 FIG. 1 shows a time chart of the reservoir tank device when the relief valve is operated to bring the air pressure in the pressure accumulation tank to a predetermined pressure.
When the air pressure in the pressure storage tank reaches P2 , the pressure switch is opened and a compressor stop signal is input to the calculation circuit. The arithmetic circuit stops the operation of the compressor after a predetermined time delay from this signal. During this time, the relief valve operates and the air pressure in the pressure accumulator tank is maintained at a predetermined pressure P1 . When the pressure drops to P2 due to consumption of the air in the pressure storage tank, the pressure switch is closed again, a compressor activation signal is output to the arithmetic circuit, and the compressor is immediately activated.
［実施例］
以下、図面を参照して本発明の具体的実施例を
説明する。[Example] Hereinafter, specific examples of the present invention will be described with reference to the drawings.
第２図は、本発明にかかるリザーバタンク装置
の概略を示したもので、従来の構成と異なるとこ
ろは圧力スイツチ１６と演算回路１７である。 FIG. 2 schematically shows a reservoir tank device according to the present invention, and the difference from the conventional structure is a pressure switch 16 and an arithmetic circuit 17.
圧力スイツチ１６は第３図に示す如くのスイツ
チであり、第５図に示す従来との違いはヒステリ
シス用のスナツプ板６５がダイアフラム６１とロ
ツド６４との間に配設されていないことである。
圧力スイツチ１６の他の構成は、従来のものと全
く同じであり説明の要はないだろう。従つて、圧
力スイツチ１６の接点の開閉動作の切換時期はほ
ぼ同じになる。蓄圧タンク３内の空気圧の下限は
この圧力スイツチ１６の設定圧P2によつて定ま
る。 The pressure switch 16 is a switch as shown in FIG. 3, and the difference from the conventional switch shown in FIG. 5 is that a hysteresis snap plate 65 is not disposed between the diaphragm 61 and the rod 64.
The other configuration of the pressure switch 16 is exactly the same as the conventional one, and there is no need to explain it. Therefore, the switching timings of the opening and closing operations of the contacts of the pressure switch 16 are approximately the same. The lower limit of the air pressure in the pressure storage tank 3 is determined by the set pressure P 2 of the pressure switch 16.
演算回路１７は、従来と異なり圧力スイツチ１
６からコンプレツサの作動停止信号を受けてもそ
の停止を所定時間遅らせる機能をもつている。こ
の機能は演算回路１７に組込まれた遅延回路によ
つて行われる。この遅延回路は演算回路１７のク
ロツクを利用し、圧力スイツチ１６からのコンプ
レツサの作動停止信号をトリガとしてクロツクか
ら発生するパルスをカウントし、あるカウント数
になつたときに、コンプレツサ１の作動を停止さ
せる。また、この遅延回路はコンデンサと放電用
抵抗により構成することも可能である。 The calculation circuit 17 differs from the conventional one in that the pressure switch 1
It has a function of delaying the stop for a predetermined period of time even if it receives a compressor operation stop signal from 6. This function is performed by a delay circuit built into the arithmetic circuit 17. This delay circuit uses the clock of the arithmetic circuit 17 and counts the pulses generated from the clock using the compressor operation stop signal from the pressure switch 16 as a trigger, and stops the operation of the compressor 1 when a certain count is reached. let Further, this delay circuit can also be constructed from a capacitor and a discharging resistor.
コンプレツサ１の作動停止時期はリリーフバル
ブ５の作動開始時期よりも遅い。この場合、リリ
ーフバルブ５の動作圧は所定圧P1にセツトされ
ている。この所定圧P1は蓄圧タンク３の上限の
空気圧でもある。 The timing at which the compressor 1 stops operating is later than the timing at which the relief valve 5 starts operating. In this case, the operating pressure of the relief valve 5 is set to a predetermined pressure P1 . This predetermined pressure P 1 is also the upper limit air pressure of the pressure storage tank 3.
次に本発明のリザーバタンク装置の作用を第１
図に示すタイムチヤートに基づき説明する。 Next, the function of the reservoir tank device of the present invention will be explained first.
The explanation will be based on the time chart shown in the figure.
Ｅ領域は蓄圧タンク３の空気圧Ｐが圧力スイツ
チ１６の動作圧P2よりも低い場合で、圧力スイ
ツチ１６の接点６６が閉となつている状態であ
る。圧力スイツチ１６からはコンプレツサの作動
信号が出され、演算回路１７によりコンプレツサ
１が作動し続ける。 Region E is a state in which the air pressure P of the pressure accumulator tank 3 is lower than the operating pressure P2 of the pressure switch 16, and the contact 66 of the pressure switch 16 is closed. The pressure switch 16 outputs a compressor operating signal, and the arithmetic circuit 17 causes the compressor 1 to continue operating.
ＦおよびＧ領域は蓄圧タンク３の空気圧Ｐが圧
力スイツチ１６の動作圧P2よりも高くなつた場
合で、圧力スイツチ１６の接点６６が開となつた
状態である。圧力スイツチ１６からはコンプレツ
サの作動停止信号が演算回路１７に出される。演
算回路１７の遅延回路は圧力スイツチ１６の作動
停止信号をトリガとしてクロツクから発生するパ
ルスをカウントし、所定数に達したら、コンプレ
ツサ１の作動を停止させる。Ｇ領域で蓄圧タンク
３の設定圧P1を越えるようになり、コンプレツ
サ１が作動している間、リリーフバルブ５が作動
し、蓄圧タンク３内の空気圧Ｐが設定圧P1より
もやや高い状態に保持される。Ｈ領域でコンプレ
ツサ１の作動が停止してもリリーフバルブ５は動
作し、蓄圧タンク３内の空気圧Ｐが設定圧P1に
される。Ｉ領域はコンプレツサ１の作動が停止
し、またリリーフバルブ５の動作が停止して蓄圧
タンク３内の空気圧Ｐが設定圧P1に保持されて
いる状態である。ＪおよびＫ領域は演算回路１７
に他からの信号が入力され、ソレノイドバルブ４
が開にされた状態である。ソレノイドバルブ４が
開になることにより蓄圧タンク３内の空気は消費
され、空気圧Ｐは低下する。Ｊ領域からＫ領域に
至る時点で蓄圧タンク３内の空気圧Ｐは圧力スイ
ツチ１６の動作点であるP2に達し、圧力スイツ
チ１６の接点６６が閉になる。圧力スイツチ１６
からコンプレツサの作動信号が演算回路１７に出
され、直ちにコンプレツサ１が作動させられる。
Ｋ領域でソレノイドバルブ４の消費に追従してコ
ンプレツサ１から圧縮空気が送られる。 Regions F and G are the states in which the air pressure P in the accumulator tank 3 has become higher than the operating pressure P2 of the pressure switch 16, and the contact 66 of the pressure switch 16 is open. The pressure switch 16 outputs a compressor operation stop signal to the arithmetic circuit 17. The delay circuit of the arithmetic circuit 17 is triggered by the operation stop signal of the pressure switch 16 and counts the pulses generated from the clock, and when a predetermined number is reached, the operation of the compressor 1 is stopped. In the G region, the set pressure P1 of the accumulator tank 3 is exceeded, and while the compressor 1 is operating, the relief valve 5 is operated, and the air pressure P in the accumulator tank 3 is slightly higher than the set pressure P1 . is maintained. Even if the compressor 1 stops operating in the H region, the relief valve 5 operates, and the air pressure P in the pressure storage tank 3 is brought to the set pressure P1 . In region I, the operation of the compressor 1 is stopped, the operation of the relief valve 5 is also stopped, and the air pressure P in the pressure accumulation tank 3 is maintained at the set pressure P1 . J and K areas are arithmetic circuit 17
A signal from another is input to solenoid valve 4.
is open. When the solenoid valve 4 is opened, the air in the pressure storage tank 3 is consumed, and the air pressure P decreases. At the time from the J region to the K region, the air pressure P in the pressure accumulator tank 3 reaches P2 , which is the operating point of the pressure switch 16, and the contact 66 of the pressure switch 16 is closed. pressure switch 16
A compressor activation signal is sent to the arithmetic circuit 17, and the compressor 1 is immediately activated.
Compressed air is sent from the compressor 1 following the consumption of the solenoid valve 4 in the K region.
上記実施例では、コンプレツサ１の動作停止時
期をリリーフバルブ５の作動開始時期よりも遅ら
せるとともに、コンプレツサ１の遅延時間内に、
蓄圧タンク３内の空気圧がリリーフバルブ５の動
作圧である所定圧を越えるようにセツトしてい
る。従つて、蓄圧タンク３内の空気圧はリリーフ
バルブ５により所定圧に設定される。 In the above embodiment, the timing at which the compressor 1 stops operating is delayed from the timing at which the relief valve 5 starts operating, and within the delay time of the compressor 1,
The air pressure in the accumulator tank 3 is set to exceed a predetermined pressure, which is the operating pressure of the relief valve 5. Therefore, the air pressure in the pressure storage tank 3 is set to a predetermined pressure by the relief valve 5.
なお、この他に圧力スイツチが作動してからコ
ンプレツサを停止するまでの遅延時間により、圧
力スイツチの動作圧よりさらに蓄圧タンク内の圧
力の上昇量が推定できる。従つて、単に演算回路
の遅延時間を設定するのみでも蓄圧タンク内の空
気圧を所定圧に設定することもできる。 In addition, the amount of increase in the pressure in the pressure accumulator tank can be estimated from the operating pressure of the pressure switch based on the delay time from when the pressure switch is activated until the compressor is stopped. Therefore, the air pressure in the pressure accumulator tank can be set to a predetermined pressure simply by setting the delay time of the arithmetic circuit.
［効果］
以上説明したように、本発明によれば、遅延停
止信号発生手段でコンプレツサの作動停止時期を
遅らせるようにして、電気的にヒステリシスを設
定したので、圧力スイツチの接点開閉時期を異な
るものに設定する必要がない。このため、圧力ス
イツチの構造が簡単かつ小型化し、コストの低廉
化を図ることができた。また、コンプレツサの作
動停止時期の調整は、演算回路の遅延時間の設定
を調整するのみでよく、従来に比べて非常に簡単
である。[Effects] As described above, according to the present invention, the compressor operation stop timing is delayed by the delayed stop signal generating means, and hysteresis is electrically set, so that the pressure switch contacts can be opened and closed at different times. There is no need to set it to . Therefore, the structure of the pressure switch can be simplified and miniaturized, and the cost can be reduced. In addition, adjusting the compressor's operation stop timing only requires adjusting the delay time setting of the arithmetic circuit, which is much simpler than in the past.
第１図は本発明にかかるリザーバタンク装置の
タイムチヤート図、第２図は本発明にかかるリザ
ーバタンク装置の概略図、第３図は本発明に用い
られる圧力スイツチの断面図、第４図は従来のリ
ザーバタンク装置の概略図、第５図は従来のリザ
ーバタンク装置に用いられていた圧力スイツチの
断面図、第６図は第５図の接点開閉状態を示した
説明図、第７図は従来のリザーバタンク装置のタ
イムチヤート図である。
１……コンプレツサ、２……ドライヤ、３……
蓄圧タンク、４……ソレノイドバルブ、５……リ
リーフバルブ、６，１６……圧力スイツチ、７，
１７……演算回路、６１……ダイアフラム、６２
……スプリング、６５……スナツプ板、６６……
接点。
FIG. 1 is a time chart of a reservoir tank device according to the present invention, FIG. 2 is a schematic diagram of a reservoir tank device according to the present invention, FIG. 3 is a sectional view of a pressure switch used in the present invention, and FIG. A schematic diagram of a conventional reservoir tank device, FIG. 5 is a sectional view of a pressure switch used in a conventional reservoir tank device, FIG. 6 is an explanatory diagram showing the contact opening/closing state of FIG. 5, and FIG. It is a time chart diagram of a conventional reservoir tank device. 1...compressor, 2...dryer, 3...
Pressure accumulator tank, 4... Solenoid valve, 5... Relief valve, 6, 16... Pressure switch, 7,
17...Arithmetic circuit, 61...Diaphragm, 62
... Spring, 65 ... Snap plate, 66 ...
contact.
Claims (1)
レツサからの空気圧を蓄圧する蓄圧タンクと、該
蓄圧タンクの空気圧の一の所定値で作動する圧力
スイツチと、前記蓄圧タンクの空気圧が前記一の
所定値以下に下降したとき前記コンプレツサを起
動する起動手段と、前記蓄圧タンクの空気圧が前
記一の所定値以上に上昇したときから所定時間経
過後に遅延停止信号を発生する遅延停止信号発生
手段と、前記遅延停止信号の発生時に前記コンプ
レツサを停止させる停止手段と、を備えてなるリ
ザーバタンク装置。1 A compressor that generates air pressure, a pressure accumulation tank that accumulates air pressure from the compressor, a pressure switch that operates at one predetermined value of the air pressure of the pressure accumulation tank, and a pressure switch that operates when the air pressure of the pressure accumulation tank becomes equal to or less than the one predetermined value. a starting means for starting the compressor when the compressor is lowered; a delayed stop signal generating means for generating a delayed stop signal after a predetermined period of time has elapsed since the air pressure in the accumulator tank has increased to the one predetermined value; and the delayed stop signal. and stopping means for stopping the compressor when this occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20055384A JPS6182001A (en) | 1984-09-27 | 1984-09-27 | Reservoir tank unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20055384A JPS6182001A (en) | 1984-09-27 | 1984-09-27 | Reservoir tank unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6182001A JPS6182001A (en) | 1986-04-25 |
| JPH0330721B2 true JPH0330721B2 (en) | 1991-05-01 |
Family
ID=16426221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20055384A Granted JPS6182001A (en) | 1984-09-27 | 1984-09-27 | Reservoir tank unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6182001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007534549A (en) * | 2004-04-29 | 2007-11-29 | コンテイネンタル・アクチエンゲゼルシヤフト | Sealed height control device for vehicles |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247401U (en) * | 1988-09-27 | 1990-03-30 | ||
| JP2519098Y2 (en) * | 1990-04-24 | 1996-12-04 | カヤバ工業株式会社 | Hydraulic drive circuit for damping device |
| JP4608980B2 (en) * | 2004-07-20 | 2011-01-12 | 株式会社アドヴィックス | Control device for hydraulic fluid storage device of vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424302A (en) * | 1977-07-27 | 1979-02-23 | Toyota Motor Corp | Operating system of gas driven plant |
| JPS5923101A (en) * | 1982-07-28 | 1984-02-06 | Diesel Kiki Co Ltd | Pressure control device |
-
1984
- 1984-09-27 JP JP20055384A patent/JPS6182001A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424302A (en) * | 1977-07-27 | 1979-02-23 | Toyota Motor Corp | Operating system of gas driven plant |
| JPS5923101A (en) * | 1982-07-28 | 1984-02-06 | Diesel Kiki Co Ltd | Pressure control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007534549A (en) * | 2004-04-29 | 2007-11-29 | コンテイネンタル・アクチエンゲゼルシヤフト | Sealed height control device for vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6182001A (en) | 1986-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |