JPS6256801U - - Google Patents
Info
- Publication number
- JPS6256801U JPS6256801U JP14805485U JP14805485U JPS6256801U JP S6256801 U JPS6256801 U JP S6256801U JP 14805485 U JP14805485 U JP 14805485U JP 14805485 U JP14805485 U JP 14805485U JP S6256801 U JPS6256801 U JP S6256801U
- Authority
- JP
- Japan
- Prior art keywords
- variable displacement
- displacement pump
- valve
- discharge
- cut
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第１図、第２図は本考案のそれぞれ異なる実施
例を示す油圧回路図である。
２は可変容量ポンプ、３はコントロールポンプ
、４は吐出路、５は操作弁、６はアクチユエータ
、１２はカツトオフ弁。
1 and 2 are hydraulic circuit diagrams showing different embodiments of the present invention. 2 is a variable displacement pump, 3 is a control pump, 4 is a discharge path, 5 is an operating valve, 6 is an actuator, and 12 is a cut-off valve.
Claims (1)
チユエータ６に接続制御すると共に、この可変容
量ポンプ２の吐出圧が所定圧力以上となると吐出
量を増大させる位置より吐出量を減少させる位置
に切換るカツトオフ弁１２を設け、このカツトオ
フ弁１２の切換え圧力を増大する機構を設けたこ
とを特徴とする可変容量ポンプを用いた油圧回路
。 The discharge path 4 of the variable displacement pump 2 is connected and controlled to the actuator 6 by the operating valve 5, and when the discharge pressure of the variable displacement pump 2 exceeds a predetermined pressure, the position is switched from the position where the discharge amount is increased to the position where the discharge amount is decreased. A hydraulic circuit using a variable displacement pump, characterized in that a cut-off valve 12 is provided, and a mechanism for increasing the switching pressure of the cut-off valve 12 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14805485U JPS6256801U (en) | 1985-09-30 | 1985-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14805485U JPS6256801U (en) | 1985-09-30 | 1985-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6256801U true JPS6256801U (en) | 1987-04-08 |
Family
ID=31061975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14805485U Pending JPS6256801U (en) | 1985-09-30 | 1985-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6256801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989008190A1 (en) * | 1988-02-25 | 1989-09-08 | Kabushiki Kaisya Komatsu Seisakusyo | Hydraulic control unit of hydraulic excavators |
-
1985
- 1985-09-30 JP JP14805485U patent/JPS6256801U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989008190A1 (en) * | 1988-02-25 | 1989-09-08 | Kabushiki Kaisya Komatsu Seisakusyo | Hydraulic control unit of hydraulic excavators |
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