JPS59105602U - hydraulic equipment - Google Patents
hydraulic equipmentInfo
- Publication number
- JPS59105602U JPS59105602U JP20255082U JP20255082U JPS59105602U JP S59105602 U JPS59105602 U JP S59105602U JP 20255082 U JP20255082 U JP 20255082U JP 20255082 U JP20255082 U JP 20255082U JP S59105602 U JPS59105602 U JP S59105602U
- Authority
- JP
- Japan
- Prior art keywords
- port
- actuator
- decompression
- tank
- variable
- 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図は公知の液圧装置の回路図、第２図はこの考案の
液圧装置の一実施例を示す回路図、第３図は前記実施例
における流量方向制御弁の説明図、第４図は前記実施例
の作動状態を説明するためのグラフである。
１・・・液圧ポンプ、２・・・アクチュエータ、３・・
・入口側のポート、４・・・吐出ライン、’５ａ、５ｂ
・・・可変オリフィス、６・・・出口側のポート、７・
・・タンク、８・・・戻りライン、９・・・減圧膨圧力
補償弁、１０・・・１次ポート、１１・・・２次ポート
、Ｐｌ・・・絞り前の圧力、Ｐ２・・・絞り後の圧力。FIG. 1 is a circuit diagram of a known hydraulic device, FIG. 2 is a circuit diagram showing an embodiment of the hydraulic device of this invention, FIG. 3 is an explanatory diagram of a flow rate directional control valve in the embodiment, and FIG. The figure is a graph for explaining the operating state of the embodiment. 1... Hydraulic pump, 2... Actuator, 3...
・Inlet side port, 4...Discharge line, '5a, 5b
...Variable orifice, 6...Outlet side port, 7.
... Tank, 8 ... Return line, 9 ... Decompression expansion pressure compensation valve, 10 ... Primary port, 11 ... Secondary port, Pl ... Pressure before throttling, P2 ... Pressure after squeezing.
Claims (1)
を結ぶ吐出ライン４に流量調整用の可変オリフィス５ａ
、５ｂを介設する一方、アクチュエータ２の出口側のポ
ート６とタンク７とを結ぶ戻りライン８に減圧膨圧力補
償弁９を、その１次ボート１０がアクチュエータ２の出
口側のポート６側に、またその２次ポート１１がタンク
７側にそれぞれ位置するように介設し、前記減圧膨圧力
補償弁９のパイロット室には前記可変オリフィス５ａ、
５ｂによる絞り前の流体圧力を、またそのハネ室に前記
可変オリフィス５ａ、５ｂによる絞り後の流体圧力をそ
れぞれ導き、 前記可変オリフィス５ａ、５ｂによる絞り前後の差圧を
前記減圧膨圧力補償弁９て一定に保持するようにしたこ
とを特徴とする液圧装置。[Claims for Utility Model Registration] A variable orifice 5a for flow rate adjustment is provided in the discharge line 4 connecting the hydraulic pump 1 and the port 3 on the inlet side of the actuator 2.
, 5b, a decompression and expansion pressure compensation valve 9 is installed in the return line 8 connecting the port 6 on the outlet side of the actuator 2 and the tank 7, and the primary boat 10 is connected to the port 6 side on the outlet side of the actuator 2. , and the secondary ports 11 thereof are located on the tank 7 side, and the pilot chamber of the decompression and expansion pressure compensating valve 9 has the variable orifice 5a,
5b, and the fluid pressure after being throttled by the variable orifices 5a, 5b are introduced into the splash chamber, respectively, and the differential pressure before and after the throttle by the variable orifices 5a, 5b is transferred to the decompression expansion pressure compensation valve 9. A hydraulic device characterized in that the hydraulic pressure is maintained at a constant level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20255082U JPS59105602U (en) | 1982-12-30 | 1982-12-30 | hydraulic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20255082U JPS59105602U (en) | 1982-12-30 | 1982-12-30 | hydraulic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59105602U true JPS59105602U (en) | 1984-07-16 |
Family
ID=30428018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20255082U Pending JPS59105602U (en) | 1982-12-30 | 1982-12-30 | hydraulic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59105602U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419072A (en) * | 1977-07-14 | 1979-02-13 | Yoshiharu Mizuno | Fourrway valve system flow rate controlling valve with pressure compensation |
| JPS552830A (en) * | 1978-06-20 | 1980-01-10 | Yoshiharu Mizuno | Discharge control valve with pressure compensation |
-
1982
- 1982-12-30 JP JP20255082U patent/JPS59105602U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419072A (en) * | 1977-07-14 | 1979-02-13 | Yoshiharu Mizuno | Fourrway valve system flow rate controlling valve with pressure compensation |
| JPS552830A (en) * | 1978-06-20 | 1980-01-10 | Yoshiharu Mizuno | Discharge control valve with pressure compensation |
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