JPS5943703U - hydraulic closed circuit - Google Patents
hydraulic closed circuitInfo
- Publication number
- JPS5943703U JPS5943703U JP14001882U JP14001882U JPS5943703U JP S5943703 U JPS5943703 U JP S5943703U JP 14001882 U JP14001882 U JP 14001882U JP 14001882 U JP14001882 U JP 14001882U JP S5943703 U JPS5943703 U JP S5943703U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- variable displacement
- displacement pump
- bottom side
- closed
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
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、第２図は従来例を示す回路図、第３図は本考案
の実施例を示す回路図、第４図は分流弁の具体的な構成
の一例を示す断面図である。
１は可変容量ポンプ、２は油圧シリンダ、３゜４は閉回
路、７は分流弁、８，９は逆止弁。FIG. 1 and FIG. 2 are circuit diagrams showing a conventional example, FIG. 3 is a circuit diagram showing an embodiment of the present invention, and FIG. 4 is a sectional view showing an example of a specific configuration of a flow dividing valve. 1 is a variable displacement pump, 2 is a hydraulic cylinder, 3°4 is a closed circuit, 7 is a flow divider valve, and 8 and 9 are check valves.
Claims (1)
側と、選択的に両方向の吐出可能にした可変容量ポンプ
１とを閉回路３，４にて接続した油圧閉回路において、
可変容量ポンプ１と油圧シリンダ２のボトム側とを接続
する閉口路４に、可変容量ポンプ１の吐出量と略同じ流
量をポンプ側へ分流し、残りをチャージ回路またはタン
ク回路等のドレン回路に戻すようにボトム側からの戻り
油を分流する分流弁７を、並列に介装し、また上記可変
容量ポンプ１およびドレン回路と分流弁７との間に分流
弁７側よりの流れのみを許す逆止弁８．９を介装したこ
とを特徴とする油圧閉回路。In a hydraulic closed circuit in which the rod side and bottom side of a one-sided Rondo type hydraulic cylinder 2 and a variable displacement pump 1 which is selectively capable of discharging in both directions are connected by closed circuits 3 and 4,
A flow rate approximately equal to the discharge amount of the variable displacement pump 1 is diverted to the closed path 4 that connects the variable displacement pump 1 and the bottom side of the hydraulic cylinder 2 to the pump side, and the remainder is sent to a drain circuit such as a charge circuit or a tank circuit. A diversion valve 7 is installed in parallel to divert the return oil from the bottom side so as to return it, and only the flow from the diversion valve 7 side is allowed between the variable displacement pump 1 and the drain circuit and the diversion valve 7. A hydraulic closed circuit characterized by interposing a check valve 8.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14001882U JPS5943703U (en) | 1982-09-17 | 1982-09-17 | hydraulic closed circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14001882U JPS5943703U (en) | 1982-09-17 | 1982-09-17 | hydraulic closed circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5943703U true JPS5943703U (en) | 1984-03-22 |
Family
ID=30313638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14001882U Pending JPS5943703U (en) | 1982-09-17 | 1982-09-17 | hydraulic closed circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943703U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61188911A (en) * | 1985-02-18 | 1986-08-22 | Hitachi Ltd | Transformer core |
| WO2014013852A1 (en) * | 2012-07-17 | 2014-01-23 | 株式会社小松製作所 | Hydraulic drive system |
-
1982
- 1982-09-17 JP JP14001882U patent/JPS5943703U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61188911A (en) * | 1985-02-18 | 1986-08-22 | Hitachi Ltd | Transformer core |
| JPH0447966B2 (en) * | 1985-02-18 | 1992-08-05 | Hitachi Ltd | |
| WO2014013852A1 (en) * | 2012-07-17 | 2014-01-23 | 株式会社小松製作所 | Hydraulic drive system |
| JP2014020431A (en) * | 2012-07-17 | 2014-02-03 | Komatsu Ltd | Hydraulic drive system |
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