JPS639359U - - Google Patents
Info
- Publication number
- JPS639359U JPS639359U JP10366486U JP10366486U JPS639359U JP S639359 U JPS639359 U JP S639359U JP 10366486 U JP10366486 U JP 10366486U JP 10366486 U JP10366486 U JP 10366486U JP S639359 U JPS639359 U JP S639359U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- accumulator
- pressure oil
- energy
- hydraulic pump
- 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
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Description
第１図は本考案油圧シヨベルのエネルギ再生回
路の実施例における油圧回路を示す。
１……作業機及び荷、２……ブーム操作アクチ
ユエータ、３……アキユムレータ、４……ブーム
操作切換弁、５……他のアクチユエータ切換弁、
６……再生弁、７……合流弁、８……操作弁（操
作レバ）、９……減圧弁、１０……油圧ポンプ、
１１〜１８……チエツク弁、１９……ブーム（縮
）操作信号圧力、２０……ブーム（縮）以外操作
信号圧力、２１……アキユムレータ蓄積圧力。
FIG. 1 shows a hydraulic circuit in an embodiment of the energy regeneration circuit of the hydraulic excavator of the present invention. 1... Work equipment and load, 2... Boom operating actuator, 3... Accumulator, 4... Boom operating switching valve, 5... Other actuator switching valve,
6... Regeneration valve, 7... Merging valve, 8... Operation valve (operation lever), 9... Pressure reducing valve, 10... Hydraulic pump,
11-18...Check valve, 19...Boom (retraction) operation signal pressure, 20...Operating signal pressure other than boom (retraction), 21...Accumulator accumulation pressure.
Claims (1)
発生する油圧エネルギをアキユムレータに蓄積し
、他の操作アクチユエータを作動させる際に再生
利用するため、アキユムレータ内の圧油を油圧ポ
ンプの吐出回路に合流させ、同時にこの圧油の再
生利用中、油圧ポンプの吐出流量を再生利用エネ
ルギの量に応じたある比率で減少させるようにし
たことを特徴とする油圧シヨベルのエネルギ再生
回路。 Hydraulic energy generated when a work machine such as a hydraulic excavator or a load is lowered is stored in an accumulator and reused when operating other actuators, so the pressure oil in the accumulator is merged into the discharge circuit of the hydraulic pump. An energy regeneration circuit for a hydraulic excavator, characterized in that, at the same time, during the reuse of this pressure oil, the discharge flow rate of the hydraulic pump is reduced at a certain ratio depending on the amount of recycled energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366486U JPS639359U (en) | 1986-07-08 | 1986-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366486U JPS639359U (en) | 1986-07-08 | 1986-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS639359U true JPS639359U (en) | 1988-01-21 |
Family
ID=30976436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10366486U Pending JPS639359U (en) | 1986-07-08 | 1986-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639359U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131510A (en) * | 1990-09-19 | 1992-05-06 | Komatsu Ltd | Controller for hydraulic drive machine |
| JP2003222105A (en) * | 2001-12-21 | 2003-08-08 | Caterpillar Inc | System and method for accumulating hydraulic fluid |
| WO2010026677A1 (en) * | 2008-09-04 | 2010-03-11 | キャタピラージャパン株式会社 | Hydraulic control system in working machine |
| WO2023189681A1 (en) * | 2022-03-31 | 2023-10-05 | 日立建機株式会社 | Work machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53113104A (en) * | 1977-03-14 | 1978-10-03 | Hitachi Construction Machinery | Boom turning hydraulic circuit |
-
1986
- 1986-07-08 JP JP10366486U patent/JPS639359U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53113104A (en) * | 1977-03-14 | 1978-10-03 | Hitachi Construction Machinery | Boom turning hydraulic circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131510A (en) * | 1990-09-19 | 1992-05-06 | Komatsu Ltd | Controller for hydraulic drive machine |
| JP2003222105A (en) * | 2001-12-21 | 2003-08-08 | Caterpillar Inc | System and method for accumulating hydraulic fluid |
| JP4532069B2 (en) * | 2001-12-21 | 2010-08-25 | キャタピラー インコーポレイテッド | System for accumulating hydraulic oil |
| WO2010026677A1 (en) * | 2008-09-04 | 2010-03-11 | キャタピラージャパン株式会社 | Hydraulic control system in working machine |
| WO2023189681A1 (en) * | 2022-03-31 | 2023-10-05 | 日立建機株式会社 | Work machine |
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