JPH0269509U - - Google Patents
Info
- Publication number
- JPH0269509U JPH0269509U JP14982288U JP14982288U JPH0269509U JP H0269509 U JPH0269509 U JP H0269509U JP 14982288 U JP14982288 U JP 14982288U JP 14982288 U JP14982288 U JP 14982288U JP H0269509 U JPH0269509 U JP H0269509U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- discharge amount
- line pressure
- suspension
- control valve
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の第１実施例を示す構成図、
第２図はライン圧Ｐの変動と油圧ポンプの吐出量
Ｑとの関係を、第１、第２の油圧ポンプの作動別
に示すグラフ、第３図はこの考案の第２実施例を
示す構成図、第４図は従来例を示す部分構成図で
ある。
図中、１０はエンジン、１１は油圧供給装置、
１２は油圧サスペンシヨン、１３ａは主油圧ポン
（第１の油圧ポンプ）、１３ｂは副油圧ポンプ（
第２の油圧ポンプ）、１４は電磁方向切換弁、２
４は圧力センサ、２５はコントローラ、２７は圧
力制御弁（制御弁）、２９は油圧シリンダ、３２
は切換弁（吐出量制御手段）である。
FIG. 1 is a configuration diagram showing the first embodiment of this invention.
Fig. 2 is a graph showing the relationship between line pressure P fluctuation and hydraulic pump discharge amount Q for each operation of the first and second hydraulic pumps, and Fig. 3 is a configuration diagram showing a second embodiment of this invention. , FIG. 4 is a partial configuration diagram showing a conventional example. In the figure, 10 is an engine, 11 is a hydraulic supply device,
12 is a hydraulic suspension, 13a is a main hydraulic pump (first hydraulic pump), and 13b is an auxiliary hydraulic pump (
(second hydraulic pump), 14 is an electromagnetic directional valve, 2
4 is a pressure sensor, 25 is a controller, 27 is a pressure control valve (control valve), 29 is a hydraulic cylinder, 32
is a switching valve (discharge amount control means).
Claims (1)
及び該油圧シリンダに供給されるライン圧を制御
する制御弁を有する油圧サスペンシヨンに対し、
前記ライン圧を供給する油圧サスペンシヨン用油
圧供給装置において、 共通の回転駆動源に連結された第１及び第２の
油圧ポンプと、この第１及び第２の油圧ポンプに
よる１回転当たりの吐出量を、前記制御弁に至る
ライン圧の変動に応じて３段階に切り換える吐出
量制御手段とを具備したことを特徴とする油圧サ
スペンシヨン用油圧供給装置。[Claims for Utility Model Registration] For a hydraulic suspension having a hydraulic cylinder interposed between each wheel and the vehicle body and a control valve for controlling the line pressure supplied to the hydraulic cylinder,
The hydraulic suspension hydraulic supply device that supplies the line pressure includes first and second hydraulic pumps connected to a common rotational drive source, and a discharge amount per revolution by the first and second hydraulic pumps. A hydraulic pressure supply device for a hydraulic suspension, comprising: a discharge amount control means for switching the discharge amount in three stages according to fluctuations in line pressure leading to the control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14982288U JPH0269509U (en) | 1988-11-17 | 1988-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14982288U JPH0269509U (en) | 1988-11-17 | 1988-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0269509U true JPH0269509U (en) | 1990-05-25 |
Family
ID=31422404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14982288U Pending JPH0269509U (en) | 1988-11-17 | 1988-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0269509U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60143113A (en) * | 1983-12-29 | 1985-07-29 | Kayaba Ind Co Ltd | Oil leakage detecting device for car height adjusting system |
| JPS63195402A (en) * | 1987-02-06 | 1988-08-12 | Komatsu Ltd | Hydraulic controller |
-
1988
- 1988-11-17 JP JP14982288U patent/JPH0269509U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60143113A (en) * | 1983-12-29 | 1985-07-29 | Kayaba Ind Co Ltd | Oil leakage detecting device for car height adjusting system |
| JPS63195402A (en) * | 1987-02-06 | 1988-08-12 | Komatsu Ltd | Hydraulic controller |