JPH0267177U - - Google Patents
Info
- Publication number
- JPH0267177U JPH0267177U JP14693688U JP14693688U JPH0267177U JP H0267177 U JPH0267177 U JP H0267177U JP 14693688 U JP14693688 U JP 14693688U JP 14693688 U JP14693688 U JP 14693688U JP H0267177 U JPH0267177 U JP H0267177U
- Authority
- JP
- Japan
- Prior art keywords
- central spring
- bobbin
- valve body
- neutral position
- solenoid 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.)
- Pending
Links
- 230000007935 neutral effect Effects 0.000 claims 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Magnetically Actuated Valves (AREA)
Description
第１，２図は本考案に係る電磁弁の一実施例を
示す図であり、第１図はその断面図、第２図はそ
の流量ゲインを示す特性図、第３図は従来の電磁
弁を示すその断面図である。
２７……弁本体、３２……スプール、３３……
ボビン、３９……リニアモータ、４９……第１セ
ントラルスプリング、５０……第２セントラルス
プリング。
Figures 1 and 2 are diagrams showing an embodiment of the solenoid valve according to the present invention. Figure 1 is a sectional view thereof, Figure 2 is a characteristic diagram showing its flow rate gain, and Figure 3 is a conventional solenoid valve. FIG. 27... Valve body, 32... Spool, 33...
Bobbin, 39... linear motor, 49... first central spring, 50... second central spring.
Claims (1)
されたボビンと、該ボビンを中立位置に保持する
付勢力を発揮する第１セントラルスプリングと、
該第１セントラルスプリングの付勢力に抗して中
立位置を基準とした正、負方向にボビンを直線駆
動するリニアモータと、を設けた電磁弁において
、前記第１セントラルスプリングと並列に形状記
憶合金よりなる少なくとも１つの第２セントラル
スプリングを設け、該第２セントラルスプリング
の全長は前記第１セントラルスプリングの全長よ
りも短く形成され、かつ所定の高温度域で伸長す
るように形状記憶されていて、該第２セントラル
スプリングは、伸長時に前記第１セントラルスプ
リングと協働することを特徴とする電磁弁。 A movable valve body, a bobbin connected to the movable valve body, and a first central spring that exerts a biasing force to hold the bobbin in a neutral position, inside the valve body.
A solenoid valve is provided with a linear motor that linearly drives a bobbin in positive and negative directions based on a neutral position against the urging force of the first central spring, and a shape memory alloy is provided in parallel with the first central spring. At least one second central spring made of A solenoid valve, wherein the second central spring cooperates with the first central spring when expanded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14693688U JPH0267177U (en) | 1988-11-09 | 1988-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14693688U JPH0267177U (en) | 1988-11-09 | 1988-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0267177U true JPH0267177U (en) | 1990-05-21 |
Family
ID=31416890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14693688U Pending JPH0267177U (en) | 1988-11-09 | 1988-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0267177U (en) |
-
1988
- 1988-11-09 JP JP14693688U patent/JPH0267177U/ja active Pending