JPS6440775A - Selector valve - Google Patents
Selector valveInfo
- Publication number
- JPS6440775A JPS6440775A JP19720287A JP19720287A JPS6440775A JP S6440775 A JPS6440775 A JP S6440775A JP 19720287 A JP19720287 A JP 19720287A JP 19720287 A JP19720287 A JP 19720287A JP S6440775 A JPS6440775 A JP S6440775A
- Authority
- JP
- Japan
- Prior art keywords
- piezo
- pressure
- electric element
- depressed
- diaphragm
- 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
Landscapes
- Fluid-Driven Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
PURPOSE:To prevent a piezo-electric element from being deformed or damaged, by converting a discharged pressure which is generated when the piezo-electric element is vibrated, into a displacement of a movable member so as to operate a main valve for changing over the flow passage. CONSTITUTION:A piezo-electric element 24 is energized so as to be vertically vibrated, a discharge pressure is generated. This discharge pressure is discharged through a discharge passage 29 and a check valve 30 into a space 23a whose fluid pressure is increased, causing a diaphragm 25 and a nozzle opening and closing part 34 is depressed downward. When the diaphragm 25 is depressed so as to close a nozzle 8a, main valves 13, 14 are depressed by a fluid pressure to change over the fluid passage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62197202A JPH0674861B2 (en) | 1987-08-05 | 1987-08-05 | Switching valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62197202A JPH0674861B2 (en) | 1987-08-05 | 1987-08-05 | Switching valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6440775A true JPS6440775A (en) | 1989-02-13 |
JPH0674861B2 JPH0674861B2 (en) | 1994-09-21 |
Family
ID=16370514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62197202A Expired - Lifetime JPH0674861B2 (en) | 1987-08-05 | 1987-08-05 | Switching valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0674861B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821080A (en) * | 1981-07-27 | 1983-02-07 | Yamatake Honeywell Co Ltd | Actuator |
JPS6177483U (en) * | 1984-10-26 | 1986-05-24 |
-
1987
- 1987-08-05 JP JP62197202A patent/JPH0674861B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821080A (en) * | 1981-07-27 | 1983-02-07 | Yamatake Honeywell Co Ltd | Actuator |
JPS6177483U (en) * | 1984-10-26 | 1986-05-24 |
Also Published As
Publication number | Publication date |
---|---|
JPH0674861B2 (en) | 1994-09-21 |
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