JPS57208375A - Drain valve - Google Patents
Drain valveInfo
- Publication number
- JPS57208375A JPS57208375A JP9357581A JP9357581A JPS57208375A JP S57208375 A JPS57208375 A JP S57208375A JP 9357581 A JP9357581 A JP 9357581A JP 9357581 A JP9357581 A JP 9357581A JP S57208375 A JPS57208375 A JP S57208375A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- heating
- diaphragm
- shaft
- shape memory
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/025—Actuating devices; Operating means; Releasing devices electric; magnetic actuated by thermo-electric means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
PURPOSE:To obtain the noiseless and positive operative drain valve by a method wherein a pair of shape memory alloys, one of which contracts and the other of which extends by heating, are fitted at the lower end of a shaft, at the tip of which a diaphragm for opening and closing the valve is provided, and said shaft is moved back and forth by means of heating. CONSTITUTION:The diaphragm 4 energized upward by a spring 5 at all times shuts-off between an influx port 2 and an exhaust port 3. The shaft 9, which is capable of piston motion and at the lower end of which the shape memory alloy 10 contracting by heating and the shape memory alloy 11 extending by heating are fitted as a pair through a sleeve 12, is fixed at the lower end of the diaphragm 4. When the valve is intended to open at this time, the heater 17 of the alloy 10 and the heater of a shape memory alloy 25 are energized. Because the alloy 25 is memorized so as to extend itself by heating, the alloy 25 lifts leaf springs 19 and 20, resulting in unfastening buttons 23 and 24 out of the holes 21 and 22 of the leaf springs 19 and 20 respectively. By the contraction of the alloy 10 simultaneous with the extension of the alloy 25, the shaft 9 is pulled down so as to separate the diaphragm 4 from the exhaust port 3 for draining.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9357581A JPS57208375A (en) | 1981-06-16 | 1981-06-16 | Drain valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9357581A JPS57208375A (en) | 1981-06-16 | 1981-06-16 | Drain valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57208375A true JPS57208375A (en) | 1982-12-21 |
Family
ID=14086055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9357581A Pending JPS57208375A (en) | 1981-06-16 | 1981-06-16 | Drain valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57208375A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001011437A1 (en) * | 1999-08-09 | 2001-02-15 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Gas dosing device and method |
WO2015037207A1 (en) * | 2013-09-11 | 2015-03-19 | 株式会社デンソー | Expansion valve |
CN105508711A (en) * | 2016-01-05 | 2016-04-20 | 李国兵 | Pressure/temperature water adjustment valve, water heater water adjustment device and water/gas dual-adjustment intelligent constant-temperature water heater |
US10240831B2 (en) | 2013-09-11 | 2019-03-26 | Denso Corporation | Expansion valve |
-
1981
- 1981-06-16 JP JP9357581A patent/JPS57208375A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001011437A1 (en) * | 1999-08-09 | 2001-02-15 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Gas dosing device and method |
WO2015037207A1 (en) * | 2013-09-11 | 2015-03-19 | 株式会社デンソー | Expansion valve |
JP2015055388A (en) * | 2013-09-11 | 2015-03-23 | 株式会社デンソー | Expansion valve |
CN105531550B (en) * | 2013-09-11 | 2017-05-31 | 株式会社电装 | Expansion valve |
US10113779B2 (en) | 2013-09-11 | 2018-10-30 | Denso Corporation | Expansion valve |
US10240831B2 (en) | 2013-09-11 | 2019-03-26 | Denso Corporation | Expansion valve |
CN105508711A (en) * | 2016-01-05 | 2016-04-20 | 李国兵 | Pressure/temperature water adjustment valve, water heater water adjustment device and water/gas dual-adjustment intelligent constant-temperature water heater |
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