JPH01165869U - - Google Patents
Info
- Publication number
- JPH01165869U JPH01165869U JP6348388U JP6348388U JPH01165869U JP H01165869 U JPH01165869 U JP H01165869U JP 6348388 U JP6348388 U JP 6348388U JP 6348388 U JP6348388 U JP 6348388U JP H01165869 U JPH01165869 U JP H01165869U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- pilot
- chamber
- breathing
- pressure 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
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 1
Description
第１図は本実施例に係る電磁パイロツト切換弁
において一方のパイロツト弁部に通電した状態を
示す断面図、第２図は同じく他方のパイロツト弁
部に通電をした状態を示す断面図である。
１……電磁パイロツト切換弁、２……主弁部、
３，４……パイロツト弁部、６……主弁室、７…
…スプール、８……ピストン、９……パイロツト
圧室、１０……呼吸室、１１……貫通孔、１２…
…パイロツト弁室、１６……弁体、１９……パイ
ロツト供給路、２０……パイロツト排気路、Ｐ…
…入力ポート、Ｒ……排気ポート、Ａ……第一出
力ポート、Ｂ……第二出力ポート、Ｓ１１，ＳＲ
……有効断面積。
FIG. 1 is a sectional view showing a state in which one pilot valve section is energized in the electromagnetic pilot switching valve according to this embodiment, and FIG. 2 is a sectional view showing a state in which the other pilot valve section is energized. 1... Solenoid pilot switching valve, 2... Main valve section,
3, 4...Pilot valve section, 6...Main valve chamber, 7...
... Spool, 8 ... Piston, 9 ... Pilot pressure chamber, 10 ... Breathing chamber, 11 ... Through hole, 12 ...
...Pilot valve chamber, 16...Valve body, 19...Pilot supply path, 20...Pilot exhaust path, P...
...Input port, R...Exhaust port, A...First output port, B...Second output port, S11, SR
...Effective cross-sectional area.
Claims (1)
両端部にこのスプール７とともに移動するピスト
ン８を設けるとともに、この両ピストン８により
主弁室６と区画したパイロツト圧室９を設け、い
ずれかのパイロツト圧室９にパイロツト弁部３，
４を介してパイロツト流体を送ることにより、ス
プール７を切換えるようにした方向切換弁におい
て、 主弁室６の両側には前記ピストン８によりパイ
ロツト圧室９と区画した呼吸室１０を設け、スプ
ール７内に貫設した貫通孔１１によりこの両呼吸
室１０を連通するとともに、互いに隣接する呼吸
室１０とパイロツト圧室９とをパイロツト弁部３
，４を介してパイロツト排気路２０により連通し
、 さらに、両呼吸室１０を排気ポートＲに連通し
、この排気ポートＲの最大有効断面積ＳＲをスプ
ール７の貫通孔１１の最小有効断面積Ｓ１１より
も小さくしたことを特徴とする方向切換弁におけ
るスプール切換装置。[Claims for Utility Model Registration] Pistons 8 that move together with the spool 7 are provided at both ends of the spool 7 that is slidably screwed into the main valve chamber 6, and the pistons 8 separate the main valve chamber 6 from the spool 7. A pilot pressure chamber 9 is provided, and a pilot valve portion 3,
In this directional control valve, the spool 7 is switched by sending pilot fluid through the spool 7. Breathing chambers 10 are provided on both sides of the main valve chamber 6 and are separated from the pilot pressure chamber 9 by the piston 8. Both breathing chambers 10 are communicated through a through hole 11 provided therein, and the breathing chamber 10 and the pilot pressure chamber 9 which are adjacent to each other are connected to each other by the pilot valve section 3.
, 4 through a pilot exhaust passage 20, and both breathing chambers 10 are connected to an exhaust port R, and the maximum effective cross-sectional area SR of the exhaust port R is the minimum effective cross-sectional area S11 of the through hole 11 of the spool 7. A spool switching device for a directional control valve, characterized in that it is smaller than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6348388U JPH043190Y2 (en) | 1988-05-13 | 1988-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6348388U JPH043190Y2 (en) | 1988-05-13 | 1988-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01165869U true JPH01165869U (en) | 1989-11-20 |
| JPH043190Y2 JPH043190Y2 (en) | 1992-01-31 |
Family
ID=31288982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6348388U Expired JPH043190Y2 (en) | 1988-05-13 | 1988-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043190Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002044506A1 (en) * | 2000-12-01 | 2002-06-06 | Tateyama Aluminium Industry Co., Ltd. | Outdoor sash structure having lower frame with flat upper surface |
| JP2004011735A (en) * | 2002-06-06 | 2004-01-15 | Koganei Corp | Solenoid valve |
| JP3853700B2 (en) * | 2002-06-06 | 2006-12-06 | 株式会社コガネイ | solenoid valve |
-
1988
- 1988-05-13 JP JP6348388U patent/JPH043190Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043190Y2 (en) | 1992-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01165869U (en) | ||
| JP2528135Y2 (en) | Double pilot type switching valve | |
| JPS63188381U (en) | ||
| JPH043184Y2 (en) | ||
| JPH0196502U (en) | ||
| JPH0328378U (en) | ||
| JPH0246181U (en) | ||
| JPH078676U (en) | Manifold solenoid valve | |
| JPH0444579U (en) | ||
| JPH0280271U (en) | ||
| JPH037585U (en) | ||
| JPS6432974U (en) | ||
| JPS6124582U (en) | Solenoid pilot operated directional valve | |
| JPS63195109U (en) | ||
| JPH0214877U (en) | ||
| JPH0326880U (en) | ||
| JPH0326879U (en) | ||
| JPH0326882U (en) | ||
| JPH0477075U (en) | ||
| JPS6427504U (en) | ||
| JPS62108602U (en) | ||
| JPH0293584U (en) | ||
| JPH0330108U (en) | ||
| JPH01169681U (en) | ||
| JPS6187276U (en) |