FR2251739B3 - - Google Patents

Info

Publication number
FR2251739B3
FR2251739B3 FR7436911A FR7436911A FR2251739B3 FR 2251739 B3 FR2251739 B3 FR 2251739B3 FR 7436911 A FR7436911 A FR 7436911A FR 7436911 A FR7436911 A FR 7436911A FR 2251739 B3 FR2251739 B3 FR 2251739B3
Authority
FR
France
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
FR7436911A
Other versions
FR2251739A1 (fr
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 FR2251739A1 publication Critical patent/FR2251739A1/fr
Application granted granted Critical
Publication of FR2251739B3 publication Critical patent/FR2251739B3/fr
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)
FR7436911A 1973-11-16 1974-11-07 Expired FR2251739B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41658573A 1973-11-16 1973-11-16

Publications (2)

Publication Number Publication Date
FR2251739A1 FR2251739A1 (fr) 1975-06-13
FR2251739B3 true FR2251739B3 (fr) 1977-08-05

Family

ID=23650543

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436911A Expired FR2251739B3 (fr) 1973-11-16 1974-11-07

Country Status (8)

Country Link
JP (1) JPS5082798A (fr)
AU (1) AU7511574A (fr)
BR (1) BR7409304A (fr)
DE (1) DE2454259A1 (fr)
ES (1) ES431983A1 (fr)
FR (1) FR2251739B3 (fr)
GB (1) GB1461135A (fr)
IT (1) IT1021891B (fr)

Families Citing this family (5)

* 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
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 (zh) * 2019-07-05 2019-08-30 郑州煤机液压电控有限公司 引流平衡式双向回液交替阀

Also Published As

Publication number Publication date
GB1461135A (en) 1977-01-13
FR2251739A1 (fr) 1975-06-13
AU7511574A (en) 1976-05-13
JPS5082798A (fr) 1975-07-04
DE2454259A1 (de) 1975-05-22
ES431983A1 (es) 1977-01-01
BR7409304A (pt) 1976-05-11
IT1021891B (it) 1978-02-20

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Legal Events

Date Code Title Description
ST Notification of lapse