JPS6199701U - - Google Patents
Info
- Publication number
- JPS6199701U JPS6199701U JP18436584U JP18436584U JPS6199701U JP S6199701 U JPS6199701 U JP S6199701U JP 18436584 U JP18436584 U JP 18436584U JP 18436584 U JP18436584 U JP 18436584U JP S6199701 U JPS6199701 U JP S6199701U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- port
- inlet port
- compensation
- 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.)
- Granted
Links
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第１図はこの考案の一実施例を示すメータアウ
ト制御用圧力補償付流量制御弁の模式的断面図、
第２図はその使用例を示す油圧回路図、第３図乃
至第５図はそれぞれ第１図の実施例における油温
に対する各ポートの流量Ｑ１，Ｑ２，Ｑ３の特性
を示す線図、第６図は同じく流量調整絞りのスプ
ールストロークに対するオリフイス開口量と流量
Ｑ１の特性を示す線図、第７図は従来の圧力補償
付流量制御弁における第６図と同様な線図、第８
図は従来の圧力補償付流量制御弁の一例を示す模
式的断面図、第９図はその使用例を示す油圧回路
図である。
１′…メータアウト制御用圧力補償付流量制御
弁、２′…ボデイ、３…入口ポート、４…出口ポ
ート、５…シリンダ、６…圧油供給源、７…タン
ク、８…圧力補償弁、９…流量調整絞り弁、１０
，１１，３７，３８…油路、１３…圧力補償スプ
ール、１７…スプール、２０…オリフイス、３０
…第２の流量制御部、３１…圧油供給ポート、３
２…絞り部、３３…圧力補償弁。
FIG. 1 is a schematic cross-sectional view of a flow control valve with pressure compensation for meter-out control showing an embodiment of this invention;
Fig. 2 is a hydraulic circuit diagram showing an example of its use, and Figs. 3 to 5 are diagrams showing the characteristics of flow rates Q 1 , Q 2 , Q 3 of each port with respect to oil temperature in the embodiment shown in Fig. 1, respectively. , Fig. 6 is a diagram showing the characteristics of the orifice opening amount and the flow rate Q1 with respect to the spool stroke of the flow rate adjustment throttle, and Fig. 7 is a diagram similar to Fig. 6 for a conventional flow rate control valve with pressure compensation. 8
The figure is a schematic sectional view showing an example of a conventional flow control valve with pressure compensation, and FIG. 9 is a hydraulic circuit diagram showing an example of its use. 1'...Flow control valve with pressure compensation for meter-out control, 2'...Body, 3...Inlet port, 4...Outlet port, 5...Cylinder, 6...Pressure oil supply source, 7...Tank, 8...Pressure compensation valve, 9...Flow rate adjustment throttle valve, 10
, 11, 37, 38... Oil path, 13... Pressure compensating spool, 17... Spool, 20... Orifice, 30
...Second flow rate control section, 31...Pressure oil supply port, 3
2... Throttle section, 33... Pressure compensation valve.
Claims (1)
とタンクに接続する出口ポートとをボデイに有し
、前記入口ポートと出口ポートを連通する油路の
上流側に圧力補償弁を下流側に流量調整絞りを配
置した圧力補償付流量制御弁において、 前記ボデイに前記入口ポートとは別に圧油供給
ポートを設けると共に、油の粘度変化の影響を積
極的に受ける絞り部と、該絞り部の前後差圧を一
定に保つ圧力補償弁とを設け、前記圧油供給ポー
トから流入する圧油を前記絞り部を介して前記入
口ポートと出口ポートとを連通する油路の圧力補
償弁と流量調整絞りとの間に供給するようにした
ことを特徴とするメータアウト制御用圧力補償付
流量制御弁。 ２ 絞り部が細管状に形成されている実用新案登
録請求の範囲第１項記載のメータアウト制御用圧
力補償付流量制御弁。[Claims for Utility Model Registration] 1. The body has an inlet port that connects to a hydraulic load such as a cylinder and an outlet port that connects to a tank, and there is pressure compensation on the upstream side of the oil passage that communicates the inlet port and the outlet port. In a pressure-compensated flow control valve in which a flow rate adjustment throttle is arranged on the downstream side of the valve, a pressure oil supply port is provided in the body separately from the inlet port, and a throttle part that is actively affected by changes in the viscosity of the oil is provided. , a pressure compensating valve that maintains a constant differential pressure across the constriction part is provided, and the pressure in the oil passage that communicates the inlet port and the outlet port through the constriction part is provided for the pressure oil flowing in from the pressure oil supply port. A flow control valve with pressure compensation for meter-out control, characterized in that the pressure is supplied between a compensation valve and a flow rate adjustment orifice. 2. The flow control valve with pressure compensation for meter-out control according to claim 1 of the utility model registration claim, in which the throttle portion is formed in the shape of a thin tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18436584U JPH0247283Y2 (en) | 1984-12-06 | 1984-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18436584U JPH0247283Y2 (en) | 1984-12-06 | 1984-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6199701U true JPS6199701U (en) | 1986-06-26 |
| JPH0247283Y2 JPH0247283Y2 (en) | 1990-12-12 |
Family
ID=30741851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18436584U Expired JPH0247283Y2 (en) | 1984-12-06 | 1984-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0247283Y2 (en) |
-
1984
- 1984-12-06 JP JP18436584U patent/JPH0247283Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0247283Y2 (en) | 1990-12-12 |
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