GB653132A - Improvements in and relating to hydraulic servo mechanisms - Google Patents

Improvements in and relating to hydraulic servo mechanisms

Info

Publication number
GB653132A
GB653132A GB2134448A GB2134448A GB653132A GB 653132 A GB653132 A GB 653132A GB 2134448 A GB2134448 A GB 2134448A GB 2134448 A GB2134448 A GB 2134448A GB 653132 A GB653132 A GB 653132A
Authority
GB
United Kingdom
Prior art keywords
fairing
jack
component
operating
jacks
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
GB2134448A
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.)
Boulton Paul Aircraft Ltd
Original Assignee
Boulton Paul Aircraft Ltd
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 Boulton Paul Aircraft Ltd filed Critical Boulton Paul Aircraft Ltd
Priority to GB2134448A priority Critical patent/GB653132A/en
Publication of GB653132A publication Critical patent/GB653132A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/16—Fairings movable in conjunction with undercarriage elements
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/003—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors with multiple outputs
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F15B7/006—Rotary pump input

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

653,132. Retractable undercarriages. BOULTON PAUL AIRCRAFT Ltd., and MILLARD, D. J. Aug. 13, 1948, No. 21344. [Class 4] A. hydraulic system for operating a retractable undercarriage including a retractable component and a fairing therefor comprises separate double-acting jacks W, F for operating the component and fairing respectively, a pair of supply pipe-lines for each jack, a non-return valve w in one pipe-line of the componentoperating jack W, which valve is normally closed but is opened by the fairing jack F when the latter has completed its movement to open the fairing, and a second non-return valve f in one pipe-line of the fairing-operating jack F, which is also normally closed but is opened by the component-operating jack W when the latter has completed its movement to retract the component. In the case of a tricycle undercarriage, three component -operating jacks and a similar number of fairing jacks are arranged in parallel with a common pressure liquid source, Fig. 2 (not shown).
GB2134448A 1948-08-13 1948-08-13 Improvements in and relating to hydraulic servo mechanisms Expired GB653132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2134448A GB653132A (en) 1948-08-13 1948-08-13 Improvements in and relating to hydraulic servo mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2134448A GB653132A (en) 1948-08-13 1948-08-13 Improvements in and relating to hydraulic servo mechanisms

Publications (1)

Publication Number Publication Date
GB653132A true GB653132A (en) 1951-05-09

Family

ID=10161294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2134448A Expired GB653132A (en) 1948-08-13 1948-08-13 Improvements in and relating to hydraulic servo mechanisms

Country Status (1)

Country Link
GB (1) GB653132A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495961A1 (en) * 2003-07-08 2005-01-12 Liebherr-Aerospace Lindenberg GmbH Retractable undercarriage actuation system
WO2010004200A2 (en) * 2008-07-08 2010-01-14 Airbus France System for opening and closing the landing gear door of an aircraft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495961A1 (en) * 2003-07-08 2005-01-12 Liebherr-Aerospace Lindenberg GmbH Retractable undercarriage actuation system
WO2010004200A2 (en) * 2008-07-08 2010-01-14 Airbus France System for opening and closing the landing gear door of an aircraft
FR2933670A1 (en) * 2008-07-08 2010-01-15 Airbus France TRAPPING OPENING AND CLOSING SYSTEM FOR LANDING TRAIN BOX OF AN AIRCRAFT
WO2010004200A3 (en) * 2008-07-08 2010-03-18 Airbus France System for opening and closing the landing gear door of an aircraft
US8888040B2 (en) 2008-07-08 2014-11-18 Airbus Operations Sas System for opening and closing the door of an aircraft landing gear compartment

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