JPS63147902U - - Google Patents
Info
- Publication number
- JPS63147902U JPS63147902U JP4170787U JP4170787U JPS63147902U JP S63147902 U JPS63147902 U JP S63147902U JP 4170787 U JP4170787 U JP 4170787U JP 4170787 U JP4170787 U JP 4170787U JP S63147902 U JPS63147902 U JP S63147902U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- inflow port
- sleeve
- control valve
- valve
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
- Multiple-Way Valves (AREA)
Description
図面第１図はこの考案の実施例を示す断面図、
第２図は従来の装置を示す回路図である。
Ｂ２，Ｂ３……第２、３ブロツク、Ｐ１，Ｐ２
……第１、２ポンプ、ａ……バルブ本体、１，２
……流入ポート、４……第１連通路、５……圧力
補償付流量制御弁、５ａ，５ｂ……パイロツト室
、６……タンク流路、７……チエツク弁、８……
第２連通路、１８……スプール孔、２０……スリ
ーブ。
Figure 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a circuit diagram showing a conventional device. B 2 , B 3 ... 2nd and 3rd blocks, P 1 , P 2
...1st and 2nd pumps, a...Valve body, 1, 2
...Inflow port, 4...First communication path, 5...Flow rate control valve with pressure compensation, 5a, 5b...Pilot chamber, 6...Tank flow path, 7...Check valve, 8...
Second communication path, 18...spool hole, 20...sleeve.
補正 昭６２．５．２１
考案の名称を次のように補正する。
考案の名称 圧力補償付流量制御装置
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment May 21, 1982 The name of the invention is amended as follows. Title of the invention Flow control device with pressure compensation The scope of the utility model registration claim and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】
スプール孔、一対の流入ポート、タンク流路、
他のバルブブロツクに連通する第１連通路、さら
にこれとは別のバルブブロツクに連通する第２連
通路を形成した方向切換弁用のバルブ本体を備え
、両流入ポートに第１、２ポンプを接続し、第１
ポンプに連通した一方の流入ポートと第１連通路
とを常時連通させ、スプール孔にはスリーブを内
装し、このスリーブを介して第２ポンプに接続し
た他方の流入ポートと第２連通路とを連通させる
とともに、このスリーブにチエツク弁を内装し、
このチエツク弁に一方の流入ポートの圧力を背圧
として作用させ、かつ他方の流入ポートの圧力を
主圧として作用させてなり、しかも、上記スリー
ブと直列に配置したカートリツジケース内に、圧
力補償付流量制御弁を内装し、この流量制御弁の
一方のパイロツト室に一方の流入ポートの圧力を
導き、その他方のパイロツト室にアクチユエータ
側の高圧を導く構成にした圧力補償付流量制御装
置。[Claims for Utility Model Registration] Spool hole, pair of inflow ports, tank flow path,
It is equipped with a valve body for a directional control valve that has a first communication passage that communicates with another valve block and a second communication passage that communicates with another valve block, and has first and second pumps connected to both inlet ports. Connect and 1st
One inflow port that communicates with the pump is always in communication with the first communication path, a sleeve is installed in the spool hole, and the other inflow port that is connected to the second pump and the second communication path are connected through the sleeve. In addition to communicating, a check valve is installed inside this sleeve,
The pressure of one inflow port acts on this check valve as back pressure, and the pressure of the other inflow port acts as main pressure.Moreover, pressure compensation is provided in the cartridge case disposed in series with the sleeve. A flow control device with pressure compensation is equipped with a flow control valve, and has a configuration in which the pressure of one inlet port is guided to one pilot chamber of the flow control valve, and the high pressure on the actuator side is guided to the other pilot chamber.
【図面の簡単な説明】
図面第１図はこの考案の実施例を示す断面図、
第２図は従来の装置を示す回路図である。
Ｂ２，Ｂ３……第２、３ブロツク、Ｐ１，Ｐ２
……第１、２ポンプ、ａ……バルブ本体、１，２
……流入ポート、４……第１連通路、５……圧力
補償付流量制御弁、５ａ，５ｂ……パイロツト室
、６……タンク流路、７……チエツク弁、８……
第２連通路、１８……スプール孔、２０……スリ
ーブ。[Brief Description of the Drawings] Figure 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a circuit diagram showing a conventional device. B 2 , B 3 ... 2nd and 3rd blocks, P 1 , P 2
...1st and 2nd pumps, a...Valve body, 1, 2
...Inflow port, 4...First communication path, 5...Flow rate control valve with pressure compensation, 5a, 5b...Pilot chamber, 6...Tank flow path, 7...Check valve, 8...
Second communication path, 18...spool hole, 20...sleeve.
Claims (1)
他のバルブブロツクに連通する第１連通路、さら
にこれとは別のバルブブロツクに連通する第２連
通路を形成した方向切換弁用のバルブ本体を備え
、両流入ポートに第１、２ポンプを接続し、第１
ポンプに連通した一方の流入ポートと第１連通路
とを常時連通させ、スプール孔にはスリーブを内
装し、このスリーブを介して第２ポンプに接続し
た他方の流入ポートと第２連通路とを連通させる
とともに、このスリーブにチエツク弁を内装し、
このチエツク弁に一方の流入ポートの圧力を背圧
として作用させ、かつ他方の流入ポートの圧力を
主圧として作用させてなり、しかも、上記スリー
ブと直列に配置したカートリツジケース内に、圧
力補償付流量制御弁を内装し、この流量制御弁の
一方のパイロツト室に一方の流入ポートの圧力を
導き、その他方のパイロツト室にアクチユエータ
側の高圧を導き、これら両パイロツト室の作用力
の差で当該流量制御弁が開弁し、一方の流入ポー
ト側の流量をタンク流路にブリードオフさせる構
成にした圧力補償付流量制御装置。 Spool hole, pair of inflow ports, tank flow path,
It is equipped with a valve body for a directional control valve that has a first communication passage that communicates with another valve block and a second communication passage that communicates with another valve block, and has first and second pumps connected to both inlet ports. Connect and 1st
One inflow port that communicates with the pump is always in communication with the first communication path, a sleeve is installed in the spool hole, and the other inflow port that is connected to the second pump and the second communication path are connected through the sleeve. In addition to communicating, a check valve is installed inside this sleeve,
The pressure of one inflow port acts on this check valve as back pressure, and the pressure of the other inflow port acts as main pressure.Moreover, pressure compensation is provided in the cartridge case disposed in series with the sleeve. A flow control valve is installed inside, and the pressure of one inlet port is guided to one pilot chamber of this flow control valve, and the high pressure on the actuator side is guided to the other pilot chamber. A flow rate control device with pressure compensation configured such that the flow rate control valve opens and bleeds off the flow rate on one inflow port side to a tank flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4170787U JPS63147902U (en) | 1987-03-20 | 1987-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4170787U JPS63147902U (en) | 1987-03-20 | 1987-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63147902U true JPS63147902U (en) | 1988-09-29 |
Family
ID=30856948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4170787U Pending JPS63147902U (en) | 1987-03-20 | 1987-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63147902U (en) |
-
1987
- 1987-03-20 JP JP4170787U patent/JPS63147902U/ja active Pending
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