JPH0478608U - - Google Patents
Info
- Publication number
- JPH0478608U JPH0478608U JP11996090U JP11996090U JPH0478608U JP H0478608 U JPH0478608 U JP H0478608U JP 11996090 U JP11996090 U JP 11996090U JP 11996090 U JP11996090 U JP 11996090U JP H0478608 U JPH0478608 U JP H0478608U
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- pilot valve
- hole
- opening
- valve port
- 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
- 239000012530 fluid Substances 0.000 claims 2
Landscapes
- Control Of Fluid Pressure (AREA)
Description
第１図は本考案の実施例を示すパイロツト弁部
の断面図、第２図は従来の減圧弁の断面図である
。
２……本体、４……入口、６……出口、１４…
…ピストン、２０……パイロツト弁部、２２……
ダイヤフラム、５２……ステムガイド、５８……
パイロツト弁口、６６パイロツト弁体、６８……
ベローズ本体、７０，７２……ベローズ。
FIG. 1 is a sectional view of a pilot valve section showing an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional pressure reducing valve. 2...Body, 4...Inlet, 6...Exit, 14...
...Piston, 20...Pilot valve section, 22...
Diaphragm, 52... Stem guide, 58...
Pilot valve port, 66 pilot valve body, 68...
Bellows body, 70, 72... bellows.
Claims (1)
を開け、そのベローズ孔の下端にパイロツト弁口
を形成し、パイロツト弁口を下方から開閉するパ
イロツト弁体を閉弁作用ばねで付勢して配置し、
パイロツト弁口からの流体をピストン上面に導入
せしめる為の横孔を前記ベローズ孔と交錯するよ
うに開け、ベローズ孔の上部開口部と、前記横孔
との開口部にそれぞれベローズを形成し、両ベロ
ーズに囲まれたベローズ室に非圧縮性流体を充填
し、上部ベローズの上端をダイヤフラムに当接せ
しめ、他方下部ベローズの下端を前記パイロツト
弁体に当接せしめたことを特徴とする減圧弁のパ
イロツト弁構造。 A bellows hole passing through the stem guide in the vertical direction is formed, a pilot valve port is formed at the lower end of the bellows hole, and a pilot valve element for opening and closing the pilot valve port from below is biased by a valve closing spring and arranged,
A horizontal hole for introducing fluid from the pilot valve port into the upper surface of the piston is opened so as to intersect with the bellows hole, and bellows are formed at the upper opening of the bellows hole and at the opening between the horizontal hole, and both A pressure reducing valve characterized in that a bellows chamber surrounded by bellows is filled with an incompressible fluid, the upper end of the upper bellows is brought into contact with a diaphragm, and the lower end of the lower bellows is brought into contact with the pilot valve body. Pilot valve structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11996090U JPH0478608U (en) | 1990-11-15 | 1990-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11996090U JPH0478608U (en) | 1990-11-15 | 1990-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0478608U true JPH0478608U (en) | 1992-07-09 |
Family
ID=31867890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11996090U Pending JPH0478608U (en) | 1990-11-15 | 1990-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0478608U (en) |
-
1990
- 1990-11-15 JP JP11996090U patent/JPH0478608U/ja active Pending