JPS6424163U - - Google Patents
Info
- Publication number
- JPS6424163U JPS6424163U JP11955787U JP11955787U JPS6424163U JP S6424163 U JPS6424163 U JP S6424163U JP 11955787 U JP11955787 U JP 11955787U JP 11955787 U JP11955787 U JP 11955787U JP S6424163 U JPS6424163 U JP S6424163U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- external command
- lock
- valve
- hydraulic actuator
- 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
- 238000010276 construction Methods 0.000 claims 2
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11955787U JPS6424163U (nl) | 1987-08-03 | 1987-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11955787U JPS6424163U (nl) | 1987-08-03 | 1987-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6424163U true JPS6424163U (nl) | 1989-02-09 |
Family
ID=31364888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11955787U Pending JPS6424163U (nl) | 1987-08-03 | 1987-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6424163U (nl) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004061313A1 (ja) * | 2002-12-27 | 2004-07-22 | Hitachi Construction Machinery Co.,Ltd. | 作業車両の油圧回路 |
| US7445240B2 (en) | 2002-12-27 | 2008-11-04 | Hitachi Construction Machinery Co., Ltd. | Drive device of hydraulic cylinder for working |
| JP2009138938A (ja) * | 2007-12-10 | 2009-06-25 | Volvo Construction Equipment Ab | 外部パイロット圧作動形ホールディングバルブを有する油圧回路 |
| EP2503161A3 (de) * | 2011-03-22 | 2016-02-10 | Linde Hydraulics GmbH & Co. KG | Hydraulische Steuerventileinrichtung |
-
1987
- 1987-08-03 JP JP11955787U patent/JPS6424163U/ja active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004061313A1 (ja) * | 2002-12-27 | 2004-07-22 | Hitachi Construction Machinery Co.,Ltd. | 作業車両の油圧回路 |
| US7197872B2 (en) | 2002-12-27 | 2007-04-03 | Hitachi Construction Machinery Co., Ltd. | Hydraulic circuit in work vehicle |
| CN1311169C (zh) * | 2002-12-27 | 2007-04-18 | 日立建机株式会社 | 作业车辆中的液压回路 |
| US7445240B2 (en) | 2002-12-27 | 2008-11-04 | Hitachi Construction Machinery Co., Ltd. | Drive device of hydraulic cylinder for working |
| JP2009138938A (ja) * | 2007-12-10 | 2009-06-25 | Volvo Construction Equipment Ab | 外部パイロット圧作動形ホールディングバルブを有する油圧回路 |
| EP2071195B1 (en) * | 2007-12-10 | 2017-05-03 | Volvo Construction Equipment Holding Sweden AB | Hydraulic circuit with load holding valves operated by external pilot pressure |
| EP2503161A3 (de) * | 2011-03-22 | 2016-02-10 | Linde Hydraulics GmbH & Co. KG | Hydraulische Steuerventileinrichtung |
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