JPH0284916U - - Google Patents
Info
- Publication number
- JPH0284916U JPH0284916U JP16272088U JP16272088U JPH0284916U JP H0284916 U JPH0284916 U JP H0284916U JP 16272088 U JP16272088 U JP 16272088U JP 16272088 U JP16272088 U JP 16272088U JP H0284916 U JPH0284916 U JP H0284916U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- piston
- pressure
- pressure reducing
- main 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.)
- Granted
Links
- 238000013459 approach Methods 0.000 claims 1
Landscapes
- Actuator (AREA)
- Control Of Fluid Pressure (AREA)
Description
第１図は本考案の実施例のピストン部断面図、
第２図は従来の減圧弁の断面図である。
１０：本体、１２：入口、１６：出口、２０：
ピストン、２２ａ：シリンダー、２５ａ，ｂ：ピ
ストンリング、２６：パイロツト弁、２８：ダイ
ヤフラム。
FIG. 1 is a sectional view of the piston part of an embodiment of the present invention.
FIG. 2 is a sectional view of a conventional pressure reducing valve. 10: Main body, 12: Inlet, 16: Exit, 20:
Piston, 22a: cylinder, 25a, b: piston ring, 26: pilot valve, 28: diaphragm.
Claims (1)
る出口との間に主弁を設け、二次側圧力が設定圧
力よりも低下したことを受圧応動部が検出してパ
イロツト弁を開弁させることにより一次側圧力を
ピストン室に導入しピストンの前進により二次側
圧力を設定圧力とするように主弁を開弁させる構
成の減圧弁に於て、ピストンとシリンダーの間の
摺動部にピストンリングを配置し、ピストンの上
面と下面を連通するオリフイスを開口し、ピスト
ンが上昇して主弁が閉弁状態に近付くに連れてピ
ストンリングとシリンダーとの摩擦力が大きくな
るようにシリンダー内面を形成したことをことを
特徴とする減圧弁。 ２ シリンダの内面を上方に細くなる円錐面に形
成したことを特徴とする実用新案登録請求の範囲
第１項記載の減圧弁。 ３ シリンダの内面を上方に暫時表面仕上げを荒
くしたことを特徴とする実用新案登録請求の範囲
第１項記載の減圧弁。[Claims for Utility Model Registration] 1. A main valve is provided between an inlet connected to the primary side and an outlet connected to the secondary side, and a pressure-responsive part In the pressure reducing valve, the main valve is configured so that the primary side pressure is introduced into the piston chamber by detecting and opening the pilot valve, and the main valve is opened so that the secondary side pressure becomes the set pressure by the movement of the piston. A piston ring is placed in the sliding part between the piston and cylinder, and an orifice that communicates between the top and bottom surfaces of the piston is opened, and as the piston rises and the main valve approaches the closed state, the piston ring and cylinder A pressure reducing valve characterized in that the inner surface of the cylinder is formed to increase the frictional force of the cylinder. 2. The pressure reducing valve according to claim 1, wherein the inner surface of the cylinder is formed into a conical surface that tapers upward. 3. The pressure reducing valve according to claim 1, which is a registered utility model, characterized in that the inner surface of the cylinder has a surface finish that is roughened upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16272088U JPH0449695Y2 (en) | 1988-12-14 | 1988-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16272088U JPH0449695Y2 (en) | 1988-12-14 | 1988-12-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0284916U true JPH0284916U (en) | 1990-07-03 |
| JPH0449695Y2 JPH0449695Y2 (en) | 1992-11-24 |
Family
ID=31446803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16272088U Expired JPH0449695Y2 (en) | 1988-12-14 | 1988-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449695Y2 (en) |
-
1988
- 1988-12-14 JP JP16272088U patent/JPH0449695Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0449695Y2 (en) | 1992-11-24 |
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