JPS577763A - Rotary servo valve - Google Patents
Rotary servo valveInfo
- Publication number
- JPS577763A JPS577763A JP8120480A JP8120480A JPS577763A JP S577763 A JPS577763 A JP S577763A JP 8120480 A JP8120480 A JP 8120480A JP 8120480 A JP8120480 A JP 8120480A JP S577763 A JPS577763 A JP S577763A
- Authority
- JP
- Japan
- Prior art keywords
- valve member
- land
- throttle
- land portions
- spool 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
Landscapes
- Power Steering Mechanism (AREA)
Abstract
PURPOSE: To prevent any cavitation growth through reduction of flow speed of pressurized fluid passing through a throttle portion achieved by varying throttle resistance of the throttle portion consisting of two pseudoparallel planes in response to overlapping length of land portions.
CONSTITUTION: A spool valve member 22 is provided with a plurality of land portions 33 at equal angular intervals corresponding to grooves 27 of a sleeve vale member 21, on its outer periphery, and also provided with grooves 34 between these land portions 33. The radius of a first land portion 33a of these land portions 33 formed in the spool valve member 22 is set slightly smaller than that of a land portion 33b. Thus, when the spool valve member 22 is rotated relatively to the sleeve valve member 21, the land portion 28 of the sleeve valve member overlaps the first land portion 33a through a gap h so that a throttle 40 consisting of two pseudo parallel planes is formed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8120480A JPS577763A (en) | 1980-06-16 | 1980-06-16 | Rotary servo valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8120480A JPS577763A (en) | 1980-06-16 | 1980-06-16 | Rotary servo valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS577763A true JPS577763A (en) | 1982-01-14 |
Family
ID=13739947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8120480A Pending JPS577763A (en) | 1980-06-16 | 1980-06-16 | Rotary servo valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS577763A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02100877U (en) * | 1989-01-30 | 1990-08-10 | ||
US5645107A (en) * | 1994-12-26 | 1997-07-08 | Koyo Seiko Co., Ltd. | Hydraulic pressure control valve |
US10807832B2 (en) | 2014-05-14 | 2020-10-20 | Mitsubishi Electric Corporation | Elevator device |
-
1980
- 1980-06-16 JP JP8120480A patent/JPS577763A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02100877U (en) * | 1989-01-30 | 1990-08-10 | ||
US5645107A (en) * | 1994-12-26 | 1997-07-08 | Koyo Seiko Co., Ltd. | Hydraulic pressure control valve |
US10807832B2 (en) | 2014-05-14 | 2020-10-20 | Mitsubishi Electric Corporation | Elevator device |
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