JPS5510161A - Hydraulic servo valve - Google Patents
Hydraulic servo valveInfo
- Publication number
- JPS5510161A JPS5510161A JP8307078A JP8307078A JPS5510161A JP S5510161 A JPS5510161 A JP S5510161A JP 8307078 A JP8307078 A JP 8307078A JP 8307078 A JP8307078 A JP 8307078A JP S5510161 A JPS5510161 A JP S5510161A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- servo valve
- corrosive liquid
- force motor
- hydraulic
- 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
- Servomotors (AREA)
Abstract
PURPOSE: To provide a hydraulic servo valve, in which a partition plate is provided on one side of force motor in the body of servo valve and a plurality of ports are formed in the valve body in the manner extending therethrough, whereby it is enabled to use economical oil-in-water type liquid and also corrosive liquid in particular for the hydraulic liquid for operating the apparatus.
CONSTITUTION: A partition plate is provided at the inner end face 20 of body 4, and an air inlet port 30 and an air outlet port 32 are formed in the body 4 in the manner extending therethrough. As spool 1 is moved with operation of force motor 5, corrosive liquid is introduced into chamber 28 through extremely small clearance 2 and leaks over the surface of force motor shaft 5A. In the arrangement of this invention, however, air is always blown into clearance 22 from air inlet port 30, leaked liquid is blown out into the atmosphere from air outlet port 32 and leakage of corrosive liquid directly to the portion around coil 6 can bepositively prevented. Thus, in the servo valve of this invention, corrosive liquid can be used, without any trouble, for the hydraulic liquid for operating the apparatus.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8307078A JPS5510161A (en) | 1978-07-10 | 1978-07-10 | Hydraulic servo valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8307078A JPS5510161A (en) | 1978-07-10 | 1978-07-10 | Hydraulic servo valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5510161A true JPS5510161A (en) | 1980-01-24 |
JPS618286B2 JPS618286B2 (en) | 1986-03-13 |
Family
ID=13791910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8307078A Granted JPS5510161A (en) | 1978-07-10 | 1978-07-10 | Hydraulic servo valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5510161A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4544129A (en) * | 1982-12-20 | 1985-10-01 | Hitachi, Ltd. | Direct-acting servo valve |
-
1978
- 1978-07-10 JP JP8307078A patent/JPS5510161A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4544129A (en) * | 1982-12-20 | 1985-10-01 | Hitachi, Ltd. | Direct-acting servo valve |
Also Published As
Publication number | Publication date |
---|---|
JPS618286B2 (en) | 1986-03-13 |
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