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ES431983A1 - Apparatus having an actuator cylinder and piston and control valve therefor - Google Patents

Apparatus having an actuator cylinder and piston and control valve therefor

Info

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
Application number
ES431983A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textron Inc
Original Assignee
Textron Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Textron Inc filed Critical Textron Inc
Publication of ES431983A1 publication Critical patent/ES431983A1/en
Expired legal-status Critical Current

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)
ES431983A 1973-11-16 1974-11-15 Apparatus having an actuator cylinder and piston and control valve therefor Expired ES431983A1 (en)

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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128047A (en) * 1975-08-14 1978-12-05 Textron Inc. Actuator with locking valves
US4192218A (en) 1975-10-28 1980-03-11 Teijin Seiki Company Limited Fail-safe fluid control valve
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
CN110185481B (en) * 2019-07-05 2024-07-19 郑州恒达智控科技股份有限公司 Drainage balance type bidirectional liquid return alternating valve
CN114046278B (en) * 2021-11-17 2024-10-11 南通棉花机械有限公司 Hydraulic crochet protector of synergistic double-box double-station packer

Also Published As

Publication number Publication date
JPS5082798A (en) 1975-07-04
IT7453974A1 (en) 1976-05-11
FR2251739A1 (en) 1975-06-13
FR2251739B3 (en) 1977-08-05
AU7511574A (en) 1976-05-13
BR7409304A (en) 1976-05-11
IT1021891B (en) 1978-02-20
GB1461135A (en) 1977-01-13
DE2454259A1 (en) 1975-05-22

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