JPS5797901A - Two-stage servovalve - Google Patents
Two-stage servovalveInfo
- Publication number
- JPS5797901A JPS5797901A JP17093880A JP17093880A JPS5797901A JP S5797901 A JPS5797901 A JP S5797901A JP 17093880 A JP17093880 A JP 17093880A JP 17093880 A JP17093880 A JP 17093880A JP S5797901 A JPS5797901 A JP S5797901A
- Authority
- JP
- Japan
- Prior art keywords
- main valve
- response
- valve
- dimensionless
- spool
- 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 improve the frequency response of a pilot valve for a direct-acting servovalve and heighten its stability in quick action, by setting the diameter of the spool of the pilot valve, the dias of the spool of a main valve and the pressure reception area of the main valve at appropriate values, respectively.
CONSTITUTION: The parameters most important to quickly and stably drive the spool 14 of a main valve 2 are the pressure reception area S of the main valve, and the diameters (d), D of the spools of a pilot valve 1 and the main valve. These parameters can be changed into a dimensionless parameter α=dD/S. To enable the quick response of the main valve 2, a dimensionless response number equal to the quotient fM/fP of the division of the response of the main valve 2 by that of the pilot valve 1 needs to be 0.3 or more. The value of the dimensionless parameter α is determined so as to satisfy said condition of the dimensionless response number. To ensure the stability of the quick response of the main valve 2, the value of the dimensionless parameter α needs to be 0.7 or less.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17093880A JPH0232485B2 (en) | 1980-12-05 | 1980-12-05 | 2DANGATASAABOBENNOBENSAIZUKETSUTEIHOHO |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17093880A JPH0232485B2 (en) | 1980-12-05 | 1980-12-05 | 2DANGATASAABOBENNOBENSAIZUKETSUTEIHOHO |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5797901A true JPS5797901A (en) | 1982-06-17 |
JPH0232485B2 JPH0232485B2 (en) | 1990-07-20 |
Family
ID=15914147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17093880A Expired - Lifetime JPH0232485B2 (en) | 1980-12-05 | 1980-12-05 | 2DANGATASAABOBENNOBENSAIZUKETSUTEIHOHO |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0232485B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110307143A (en) * | 2019-06-21 | 2019-10-08 | 江苏恒立液压科技有限公司 | A kind of variable servo valve, power servo valve and variable pump |
-
1980
- 1980-12-05 JP JP17093880A patent/JPH0232485B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110307143A (en) * | 2019-06-21 | 2019-10-08 | 江苏恒立液压科技有限公司 | A kind of variable servo valve, power servo valve and variable pump |
Also Published As
Publication number | Publication date |
---|---|
JPH0232485B2 (en) | 1990-07-20 |
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