JPH0343010U - - Google Patents
Info
- Publication number
- JPH0343010U JPH0343010U JP10444289U JP10444289U JPH0343010U JP H0343010 U JPH0343010 U JP H0343010U JP 10444289 U JP10444289 U JP 10444289U JP 10444289 U JP10444289 U JP 10444289U JP H0343010 U JPH0343010 U JP H0343010U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- fluid
- suspension mechanism
- pump
- control device
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１図は本考案の第１実施例を示す流体制御装
置を備えたサスペンシヨンシステムの油圧系統図
、第２図は第１図に示されたサスペンシヨンシス
テムにおけるパイロツト弁ユニツトの断面図、第
３図は第１図に示されたサスペンシヨンシステム
における制御弁ユニツトの断面図、第４図と第５
図はそれぞれ第３図に示された制御弁ユニツトに
おける一方向絞り弁の互いに異なる作動状態を示
す拡大断面図、第６図は本考案の第２実施例を示
す流体制御装置を備えたサスペンシヨンシステム
の油圧系統図、第７図は第６図に示されたサスペ
ンシヨンシステムにおける制御弁ユニツトの断面
図である。
１…サスペンシヨンシステム、２ａ，２ｂ，２
ｃ，２ｄ…流体式懸架機構、４…流体制御装置、
７…シリンダ、８…ロツド、１２…配管、１５…
ポンプ、２６…パイロツト弁ユニツト、２７…制
御弁ユニツト、３０…バルブブロツク、３１…ポ
ンプポート、３２…タンクポート、３３…シリン
ダポート、３４…共通液路、５１…パイロツト開
閉弁、９０…一方向絞り弁（流量制御手段）、１
０１…電磁開閉弁、１２０…リリーフ弁、１４０
…サスペンシヨンシステム、１４１…リリーフ弁
を兼ねたデユーテイ制御式電磁開閉弁。
Fig. 1 is a hydraulic system diagram of a suspension system equipped with a fluid control device showing a first embodiment of the present invention; Fig. 2 is a sectional view of a pilot valve unit in the suspension system shown in Fig. 1; Figure 3 is a sectional view of the control valve unit in the suspension system shown in Figure 1, and Figures 4 and 5 are sectional views of the control valve unit in the suspension system shown in Figure 1.
The figures are enlarged sectional views showing mutually different operating states of the one-way throttle valve in the control valve unit shown in Fig. 3, and Fig. 6 is a suspension equipped with a fluid control device showing a second embodiment of the present invention. FIG. 7 is a sectional view of the control valve unit in the suspension system shown in FIG. 6. 1...Suspension system, 2a, 2b, 2
c, 2d...Fluid suspension mechanism, 4...Fluid control device,
7...Cylinder, 8...Rod, 12...Piping, 15...
Pump, 26...Pilot valve unit, 27...Control valve unit, 30...Valve block, 31...Pump port, 32...Tank port, 33...Cylinder port, 34...Common liquid path, 51...Pilot opening/closing valve, 90...One direction Throttle valve (flow control means), 1
01...Solenoid on/off valve, 120...Relief valve, 140
...Suspension system, 141...Duty-controlled electromagnetic on-off valve that also serves as a relief valve.
Claims (1)
ポンプおよびタンクとの間に配置されて各懸架機
構に作動液を出し入れする流体制御装置であつて
、 上記ポンプに接続されるポンプポートと、 タンクに接続されるタンクポートと、 上記各懸架機構ごとに設けられていて各懸架機
構の上昇時と下降時に開弁させられる電磁開閉弁
を含む制御弁ユニツトと、 上記ポンプポートと上記各制御弁ユニツトに接
続される共通液路と、 ポンプポートの圧力が所定値を越えた時にこの
パイロツト圧によつて上記共通液路とタンクポー
トの連通を断つ方向に作動し、上記パイロツト圧
が解消した状態においては開弁して共通液路とタ
ンクポートを互いに連通させるパイロツト弁と、 上記懸架機構から作動液を排出する時に上記電
磁開閉弁を流れる作動液の流量を抑制するように
上記制御弁ユニツトを制御する流量制御手段と、 を具備したことを特徴とする懸架機構用の流体
制御装置。 (2) 上記流量制御手段は、上記懸架機構に上記
ポンプから作動液を供給する方向にのみ開弁する
チエツク弁と、このチエツク弁と並列に設けられ
たオリフイスを備えた一方向絞り弁である請求項
１記載の流体制御装置。 (3) 上記流量制御手段は、上記懸架機構から作
動液を排出する時に上記電磁開閉弁の開度を減少
させるように作動するデユーテイー制御弁システ
ムである請求項１記載の流体制御装置。 (4) 上記制御弁ユニツトに、上記懸架機構の圧
力が許容値を越えた時に開弁するリリーフ手段が
内蔵されている請求項１記載の流体制御装置。[Scope of Claim for Utility Model Registration] (1) A fluid control device that is disposed between a fluid suspension mechanism provided on each wheel of a vehicle and a pump and a tank to supply and withdraw hydraulic fluid to each suspension mechanism, which A pump port connected to the pump, a tank port connected to the tank, and a control valve unit including an electromagnetic on-off valve that is provided for each of the above suspension mechanisms and is opened when each suspension mechanism is raised and lowered. , a common liquid path connected to the pump port and each of the control valve units, and when the pressure of the pump port exceeds a predetermined value, the pilot pressure operates in a direction to cut off communication between the common liquid path and the tank port. When the pilot pressure is released, the pilot valve opens to communicate the common fluid path and the tank port with each other, and when the hydraulic fluid is discharged from the suspension mechanism, the flow rate of the hydraulic fluid flowing through the electromagnetic shut-off valve is controlled. A fluid control device for a suspension mechanism, comprising: flow control means for controlling the control valve unit so as to suppress the flow rate of the control valve unit. (2) The flow rate control means is a one-way throttle valve that includes a check valve that opens only in the direction in which hydraulic fluid is supplied from the pump to the suspension mechanism, and an orifice that is provided in parallel with the check valve. The fluid control device according to claim 1. (3) The fluid control device according to claim 1, wherein the flow rate control means is a duty control valve system that operates to reduce the opening degree of the electromagnetic on-off valve when discharging the hydraulic fluid from the suspension mechanism. (4) The fluid control device according to claim 1, wherein the control valve unit has built-in relief means that opens the valve when the pressure of the suspension mechanism exceeds an allowable value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989104442U JP2528086Y2 (en) | 1989-09-06 | 1989-09-06 | Fluid control device for suspension mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989104442U JP2528086Y2 (en) | 1989-09-06 | 1989-09-06 | Fluid control device for suspension mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0343010U true JPH0343010U (en) | 1991-04-23 |
| JP2528086Y2 JP2528086Y2 (en) | 1997-03-05 |
Family
ID=31653237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989104442U Expired - Lifetime JP2528086Y2 (en) | 1989-09-06 | 1989-09-06 | Fluid control device for suspension mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528086Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011121753A1 (en) * | 2011-12-21 | 2013-06-27 | Wabco Gmbh | Air suspension system of a motor vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150813A (en) * | 1984-12-26 | 1986-07-09 | Komatsu Ltd | Variable shock absorber device for vehicle |
| JPS62196262A (en) * | 1986-02-22 | 1987-08-29 | Toshiba Corp | Sorting stacker for paper sheet |
| JPS6310554A (en) * | 1986-07-01 | 1988-01-18 | Nec Corp | Semiconductor integrated circuit |
-
1989
- 1989-09-06 JP JP1989104442U patent/JP2528086Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150813A (en) * | 1984-12-26 | 1986-07-09 | Komatsu Ltd | Variable shock absorber device for vehicle |
| JPS62196262A (en) * | 1986-02-22 | 1987-08-29 | Toshiba Corp | Sorting stacker for paper sheet |
| JPS6310554A (en) * | 1986-07-01 | 1988-01-18 | Nec Corp | Semiconductor integrated circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528086Y2 (en) | 1997-03-05 |
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