JPH0480765U - - Google Patents
Info
- Publication number
- JPH0480765U JPH0480765U JP12184890U JP12184890U JPH0480765U JP H0480765 U JPH0480765 U JP H0480765U JP 12184890 U JP12184890 U JP 12184890U JP 12184890 U JP12184890 U JP 12184890U JP H0480765 U JPH0480765 U JP H0480765U
- Authority
- JP
- Japan
- Prior art keywords
- drain
- port
- hydraulic oil
- spool
- spool chamber
- 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
- 239000010720 hydraulic oil Substances 0.000 claims 3
- 230000007423 decrease Effects 0.000 claims 1
Description
第１図は本考案の流量制御弁の一実施例の構成
を示す縦断面図、第２図は同じくパイプを示す横
断面図、第３図は従来の流量制御弁の一例の構成
を示す縦断面図である。
２……スプール室、３……流入ポート、４……
ドレンポート、６……スプール弁、１１……凹部
、１３……凸部（流路抵抗部）。
FIG. 1 is a vertical cross-sectional view showing the configuration of an embodiment of the flow control valve of the present invention, FIG. 2 is a cross-sectional view similarly showing a pipe, and FIG. 3 is a vertical cross-sectional view showing the configuration of an example of a conventional flow control valve. It is a front view. 2... Spool chamber, 3... Inflow port, 4...
Drain port, 6... Spool valve, 11... Concave portion, 13... Convex portion (flow path resistance portion).
Claims (1)
回路への作動油の吐出ポートと、余剰の作動油を
還流させるドレンポートとを備えたスプール室内
に、スプール弁を配設し、該スプール弁により前
記ドレンポートからのドレン流量を増減させ、吐
出流量を制御するようにした流量制御弁において
、前記ドレンポートに対向するスプール室の壁面
にドレンポートと同形状の凹部を形成すると共に
、前記ドレンポートの前記スプール室との接続部
の流入ポート側の近傍の内周に流路抵抗部を設け
たことを特徴とする流量制御弁。 A spool valve is disposed in a spool chamber equipped with an inflow port for hydraulic oil, a discharge port for hydraulic oil to the hydraulic circuit of the actuator, and a drain port for circulating excess hydraulic oil, and the spool valve is used to drain the drain. In a flow control valve that increases or decreases the drain flow rate from a port to control the discharge flow rate, a recessed portion having the same shape as the drain port is formed on a wall surface of the spool chamber facing the drain port, and A flow control valve characterized in that a flow path resistance portion is provided on the inner periphery of a connection portion with a spool chamber near an inflow port side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990121848U JP2539987Y2 (en) | 1990-11-22 | 1990-11-22 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990121848U JP2539987Y2 (en) | 1990-11-22 | 1990-11-22 | Flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0480765U true JPH0480765U (en) | 1992-07-14 |
| JP2539987Y2 JP2539987Y2 (en) | 1997-07-02 |
Family
ID=31869676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990121848U Expired - Lifetime JP2539987Y2 (en) | 1990-11-22 | 1990-11-22 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2539987Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01144172U (en) * | 1988-03-08 | 1989-10-03 |
-
1990
- 1990-11-22 JP JP1990121848U patent/JP2539987Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01144172U (en) * | 1988-03-08 | 1989-10-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2539987Y2 (en) | 1997-07-02 |