JPS59177802U - Closed circuit hydraulic device - Google Patents
Closed circuit hydraulic deviceInfo
- Publication number
- JPS59177802U JPS59177802U JP7247483U JP7247483U JPS59177802U JP S59177802 U JPS59177802 U JP S59177802U JP 7247483 U JP7247483 U JP 7247483U JP 7247483 U JP7247483 U JP 7247483U JP S59177802 U JPS59177802 U JP S59177802U
- Authority
- JP
- Japan
- Prior art keywords
- closed circuit
- side chamber
- hydraulic device
- circuit hydraulic
- bottom side
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/785—Compensation of the difference in flow rate in closed fluid circuits using differential actuators
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例の説明図、第２図及び第３図は本考案の
実施例を示すもので、第２図はパワーショベルの正面図
、第３図はブームシリンダの液圧回路図である。
１は両吐出可変ポンプ、２１．２□は第１・第２主路、
４はモータ、５はポンプ、６はチャージポンプ、□８は
タンク、９はアキュムレータ、１３は片ロッドシリンダ
。Figure 1 is an explanatory diagram of a conventional example, Figures 2 and 3 show an embodiment of the present invention, Figure 2 is a front view of a power shovel, and Figure 3 is a hydraulic circuit diagram of a boom cylinder. be. 1 is both variable discharge pump, 21.2□ is the first and second main path,
4 is a motor, 5 is a pump, 6 is a charge pump, □8 is a tank, 9 is an accumulator, and 13 is a single rod cylinder.
Claims (1)
ッドシリンダ１３のロッド側室１３□・ボ＋ム側室１３
□に閉回路接続し、前記ボトム側室１３□に接続した第
２主路２□にモータ４を設け、このモータ４で駆動され
るポンプ５をボトム側室１３゜とアキュムレータ９とに
接続すると共に、チャージポンプ６でタンク８内の液を
第１・第２主路２．、 ２．に供給するようにしたこと
を特徴とする閉回路液圧装置。Both variable discharge pumps 1 are connected to the rod side chamber 13□ and the bottom side chamber 13 of the single rod cylinder 13 through the first and second main paths 21.2□.
A motor 4 is provided in the second main path 2□ which is connected in a closed circuit to □ and connected to the bottom side chamber 13□, and a pump 5 driven by this motor 4 is connected to the bottom side chamber 13° and the accumulator 9. The charge pump 6 pumps the liquid in the tank 8 to the first and second main paths 2. , 2. A closed circuit hydraulic device characterized by supplying
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7247483U JPS59177802U (en) | 1983-05-17 | 1983-05-17 | Closed circuit hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7247483U JPS59177802U (en) | 1983-05-17 | 1983-05-17 | Closed circuit hydraulic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59177802U true JPS59177802U (en) | 1984-11-28 |
Family
ID=30202613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7247483U Pending JPS59177802U (en) | 1983-05-17 | 1983-05-17 | Closed circuit hydraulic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59177802U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013603A1 (en) * | 1996-09-25 | 1998-04-02 | Komatsu Ltd. | Hydraulic oil recovery/reutilization system |
| WO2011133849A1 (en) * | 2010-04-23 | 2011-10-27 | Clark Equipment Company | Pump suction charging system |
-
1983
- 1983-05-17 JP JP7247483U patent/JPS59177802U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013603A1 (en) * | 1996-09-25 | 1998-04-02 | Komatsu Ltd. | Hydraulic oil recovery/reutilization system |
| WO2011133849A1 (en) * | 2010-04-23 | 2011-10-27 | Clark Equipment Company | Pump suction charging system |
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