JPS6228978U - - Google Patents
Info
- Publication number
- JPS6228978U JPS6228978U JP12027185U JP12027185U JPS6228978U JP S6228978 U JPS6228978 U JP S6228978U JP 12027185 U JP12027185 U JP 12027185U JP 12027185 U JP12027185 U JP 12027185U JP S6228978 U JPS6228978 U JP S6228978U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- pilot hole
- flow path
- plunger
- bias spring
- 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
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
Landscapes
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
- Temperature-Responsive Valves (AREA)
Description
第１図は本考案の一実施例に係るパイロツト式
バルブの断面図である。
１１〜バルブボデイ、１２〜メイン流路、１３
〜パイロツト流路、１４〜バルブ穴、１５〜メイ
ンバルブ、１８〜パイロツト穴、１９〜シリンダ
ー、２０〜プランジヤー、２１〜バイアスばね、
２４〜形状記憶合金ばね。
FIG. 1 is a sectional view of a pilot type valve according to an embodiment of the present invention. 11-valve body, 12-main flow path, 13
~ Pilot flow path, 14 ~ Valve hole, 15 ~ Main valve, 18 ~ Pilot hole, 19 ~ Cylinder, 20 ~ Plunger, 21 ~ Bias spring,
24 ~ Shape memory alloy spring.
Claims (1)
ロツト流路の途中にあるパイロツト穴をプランジ
ヤーで閉じることによりメインバルブを閉じ、プ
ランジヤーを引き離してパイロツト穴を開くこと
によりメインバルブを開くようにしたパイロツト
式バルブにおいて、上記プランジヤーをパイロツ
ト穴に押し付ける方向に付勢されたバイアスばね
と、上記プランジヤーをパイロツト穴から引き離
す方向に付勢された形状記憶合金ばねとを設け、
上記形状記憶合金ばねは所定の温度以下ではバイ
アスばねより弱く、それを越える温度では記憶形
状に回復する力でバイアスばねより強くなるよう
にしてあることを特徴とするパイロツト式バルブ
。 A pilot type system that is equipped with a main flow path and a pilot flow path, and the main valve is closed by closing the pilot hole in the middle of the pilot flow path with a plunger, and the main valve is opened by pulling the plunger away and opening the pilot hole. The valve includes a bias spring biased in a direction to press the plunger against the pilot hole, and a shape memory alloy spring biased in a direction to pull the plunger away from the pilot hole,
A pilot type valve characterized in that the shape memory alloy spring is weaker than a bias spring at a temperature below a predetermined temperature, and becomes stronger than a bias spring at a temperature exceeding the predetermined temperature with the force of restoring to the memorized shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12027185U JPS6228978U (en) | 1985-08-07 | 1985-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12027185U JPS6228978U (en) | 1985-08-07 | 1985-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6228978U true JPS6228978U (en) | 1987-02-21 |
Family
ID=31008432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12027185U Pending JPS6228978U (en) | 1985-08-07 | 1985-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6228978U (en) |
-
1985
- 1985-08-07 JP JP12027185U patent/JPS6228978U/ja active Pending
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