SE8903000D0 - COAXIAL ROTARY SPOOL TYPE HYDRAULIC SERVO ACTUATING DEVICE - Google Patents
COAXIAL ROTARY SPOOL TYPE HYDRAULIC SERVO ACTUATING DEVICEInfo
- Publication number
- SE8903000D0 SE8903000D0 SE8903000A SE8903000A SE8903000D0 SE 8903000 D0 SE8903000 D0 SE 8903000D0 SE 8903000 A SE8903000 A SE 8903000A SE 8903000 A SE8903000 A SE 8903000A SE 8903000 D0 SE8903000 D0 SE 8903000D0
- Authority
- SE
- Sweden
- Prior art keywords
- rotary spool
- actuating device
- hydraulic servo
- type hydraulic
- spool type
- Prior art date
Links
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Actuator (AREA)
Abstract
PURPOSE: To make accurate and easy to control the position and speed of the final motion part by rotating a rotary spool by a stepping motor, and adjusting the degree of overlapping of the control path with the choke of a hollow piston. CONSTITUTION: A cylinder 15 is interposed between a rod cover 13 and head cover 14 having supply ports S1 and S2 , and outside the head cover 14 a stepping motor 12 is installed, and a rotary spool 18 is made drivable. A hollow piston 17 is inserted into the cylinder 15, and in the hollow the rotary spool 18 is inserted liquid-tightly, and with its rotation, the rate of overlapping of through holes C1 and C3 in the piston 17 with a groove provided in the rotary spool 18 is controlled. This makes accurate and easy the control of the position and speed of the final motion part, and the costs of fabrication and the easiness in maintenance works are enhanced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890005395A KR910008268B1 (en) | 1989-04-24 | 1989-04-24 | Servo devices |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8903000D0 true SE8903000D0 (en) | 1989-09-12 |
SE8903000L SE8903000L (en) | 1990-10-25 |
Family
ID=19285588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8903000A SE8903000L (en) | 1989-04-24 | 1989-09-12 | HYDRAULIC SERVOPA CLEARING DEVICE OF THE TYPE THAT HAS A COAXIAL ROTABLE SLIDE |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH02286901A (en) |
KR (1) | KR910008268B1 (en) |
SE (1) | SE8903000L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7735517B2 (en) * | 2006-12-22 | 2010-06-15 | Caterpillar Inc | Rotary-actuated electro-hydraulic valve |
JP5939673B2 (en) * | 2012-03-27 | 2016-06-22 | 本田技研工業株式会社 | Shift control device for toroidal transmission mechanism |
CN108612697B (en) * | 2018-06-07 | 2024-07-12 | 江苏钧微动力科技有限公司 | Sheet valve core rotary direct-drive electrohydraulic servo valve |
CN109404359A (en) * | 2018-12-11 | 2019-03-01 | 中航工业南京伺服控制***有限公司 | A kind of rotary Electric hydraulic pressure servo valve |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5980501A (en) * | 1982-10-27 | 1984-05-10 | Kawasaki Heavy Ind Ltd | Hydraulic servo-actuator |
JPS62196403A (en) * | 1986-02-22 | 1987-08-29 | Techno-Le:Kk | Electric-hydraulic cylinder |
-
1989
- 1989-04-24 KR KR1019890005395A patent/KR910008268B1/en not_active IP Right Cessation
- 1989-07-10 JP JP1175778A patent/JPH02286901A/en active Pending
- 1989-09-12 SE SE8903000A patent/SE8903000L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR900016625A (en) | 1990-11-14 |
KR910008268B1 (en) | 1991-10-12 |
SE8903000L (en) | 1990-10-25 |
JPH02286901A (en) | 1990-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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