JP2021195962A5 - - Google Patents
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- Publication number
- JP2021195962A5 JP2021195962A5 JP2020100636A JP2020100636A JP2021195962A5 JP 2021195962 A5 JP2021195962 A5 JP 2021195962A5 JP 2020100636 A JP2020100636 A JP 2020100636A JP 2020100636 A JP2020100636 A JP 2020100636A JP 2021195962 A5 JP2021195962 A5 JP 2021195962A5
- Authority
- JP
- Japan
- Prior art keywords
- boom
- rod side
- side chamber
- line
- vehicle body
- 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
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020100636A JP7461802B2 (ja) | 2020-06-10 | 2020-06-10 | 油圧ショベル駆動システム |
| PCT/JP2021/019952 WO2021251140A1 (ja) | 2020-06-10 | 2021-05-26 | 油圧ショベル駆動システム |
| CN202180037382.3A CN115516212A (zh) | 2020-06-10 | 2021-05-26 | 液压挖掘机驱动系统 |
| US17/923,632 US12043987B2 (en) | 2020-06-10 | 2021-05-26 | Hydraulic excavator drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020100636A JP7461802B2 (ja) | 2020-06-10 | 2020-06-10 | 油圧ショベル駆動システム |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021195962A JP2021195962A (ja) | 2021-12-27 |
| JP2021195962A5 true JP2021195962A5 (https=) | 2023-02-15 |
| JP7461802B2 JP7461802B2 (ja) | 2024-04-04 |
Family
ID=78845995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020100636A Active JP7461802B2 (ja) | 2020-06-10 | 2020-06-10 | 油圧ショベル駆動システム |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12043987B2 (https=) |
| JP (1) | JP7461802B2 (https=) |
| CN (1) | CN115516212A (https=) |
| WO (1) | WO2021251140A1 (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7389728B2 (ja) * | 2020-09-09 | 2023-11-30 | 川崎重工業株式会社 | 油圧ショベル駆動システム |
| GB2625568A (en) * | 2022-12-20 | 2024-06-26 | Hyva Holding Bv | A hydraulic cylinder assembly |
| CN117822676A (zh) * | 2024-01-02 | 2024-04-05 | 三一重机有限公司 | 液压控制系统及作业机械 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030623A (en) * | 1971-12-13 | 1977-06-21 | Caterpillar Tractor Co. | Hydraulic circuitry for an excavator |
| JP2004019806A (ja) * | 2002-06-17 | 2004-01-22 | Hitachi Constr Mach Co Ltd | 作業車両の油圧回路 |
| JP2005315312A (ja) * | 2004-04-28 | 2005-11-10 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | 建設機械の油圧シリンダ駆動装置 |
| US7559197B2 (en) * | 2005-08-31 | 2009-07-14 | Caterpillar Inc. | Combiner valve control system and method |
| JP5079827B2 (ja) * | 2010-02-10 | 2012-11-21 | 日立建機株式会社 | 油圧ショベルの油圧駆動装置 |
| JP5572586B2 (ja) * | 2011-05-19 | 2014-08-13 | 日立建機株式会社 | 作業機械の油圧駆動装置 |
| JP6450487B1 (ja) * | 2018-05-15 | 2019-01-09 | 川崎重工業株式会社 | 油圧ショベル駆動システム |
-
2020
- 2020-06-10 JP JP2020100636A patent/JP7461802B2/ja active Active
-
2021
- 2021-05-26 WO PCT/JP2021/019952 patent/WO2021251140A1/ja not_active Ceased
- 2021-05-26 US US17/923,632 patent/US12043987B2/en active Active
- 2021-05-26 CN CN202180037382.3A patent/CN115516212A/zh active Pending
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