ES431983A1 - Apparatus having an actuator cylinder and piston and control valve therefor - Google Patents
Apparatus having an actuator cylinder and piston and control valve thereforInfo
- Publication number
- ES431983A1 ES431983A1 ES431983A ES431983A ES431983A1 ES 431983 A1 ES431983 A1 ES 431983A1 ES 431983 A ES431983 A ES 431983A ES 431983 A ES431983 A ES 431983A ES 431983 A1 ES431983 A1 ES 431983A1
- Authority
- ES
- Spain
- Prior art keywords
- actuator
- bypass
- servo valve
- chamber
- valve device
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
- B64C27/64—Transmitting means, e.g. interrelated with initiating means or means acting on blades using fluid pressure, e.g. having fluid power amplification
-
- 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
- F15B18/00—Parallel arrangements of independent servomotor systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
Abstract
Improvements in hydraulic actuator systems, which have a valve body with a chamber inside, a servo valve device hydraulically coupled to an actuator to regulate the supply of pressurized fluid to the actuator and to operate the actuator, and a Bypass comprising a bypass valve mounted on the chamber to move into and out of a normal position whereby actuator operation is controlled by the servo valve device and bypass position, thereby preventing blockage hydraulic in the actuator by purging fluid pressures in the actuator above supply pressure and raising fluid pressures in the actuator to supply pressure, when the servo valve device is seized; characterized in that the bypass valve is provided with a movable sleeve that has a central chamber inside and a servo valve reel movably mounted in the chamber of the sleeve. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41658573A | 1973-11-16 | 1973-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES431983A1 true ES431983A1 (en) | 1977-01-01 |
Family
ID=23650543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES431983A Expired ES431983A1 (en) | 1973-11-16 | 1974-11-15 | Apparatus having an actuator cylinder and piston and control valve therefor |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5082798A (en) |
| AU (1) | AU7511574A (en) |
| BR (1) | BR7409304A (en) |
| DE (1) | DE2454259A1 (en) |
| ES (1) | ES431983A1 (en) |
| FR (1) | FR2251739B3 (en) |
| GB (1) | GB1461135A (en) |
| IT (1) | IT1021891B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128047A (en) * | 1975-08-14 | 1978-12-05 | Textron Inc. | Actuator with locking valves |
| US4472998A (en) * | 1982-11-19 | 1984-09-25 | Pneumo Corporation | Redundant control actuation system-concentric direct drive valve |
| US4545407A (en) * | 1984-02-29 | 1985-10-08 | United Technologies Corporation | Jam compensating control valve |
| US4930401A (en) * | 1988-10-28 | 1990-06-05 | Ross Operating Valve Company | Valve system and arrangement for on-line valve replacement |
| CN110185481A (en) * | 2019-07-05 | 2019-08-30 | 郑州煤机液压电控有限公司 | It drains balance type two-way and returns liquid alternate valve |
-
1974
- 1974-10-11 GB GB4417574A patent/GB1461135A/en not_active Expired
- 1974-10-22 IT IT5397474A patent/IT1021891B/en active
- 1974-11-06 BR BR930474A patent/BR7409304A/en unknown
- 1974-11-07 AU AU75115/74A patent/AU7511574A/en not_active Expired
- 1974-11-07 FR FR7436911A patent/FR2251739B3/fr not_active Expired
- 1974-11-15 DE DE19742454259 patent/DE2454259A1/en active Pending
- 1974-11-15 ES ES431983A patent/ES431983A1/en not_active Expired
- 1974-11-16 JP JP13158474A patent/JPS5082798A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU7511574A (en) | 1976-05-13 |
| GB1461135A (en) | 1977-01-13 |
| IT1021891B (en) | 1978-02-20 |
| JPS5082798A (en) | 1975-07-04 |
| DE2454259A1 (en) | 1975-05-22 |
| FR2251739A1 (en) | 1975-06-13 |
| BR7409304A (en) | 1976-05-11 |
| FR2251739B3 (en) | 1977-08-05 |
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