GB1206869A - Hydraulic actuator mechanism for landing wheel steering - Google Patents

Hydraulic actuator mechanism for landing wheel steering

Info

Publication number
GB1206869A
GB1206869A GB4973868A GB4973868A GB1206869A GB 1206869 A GB1206869 A GB 1206869A GB 4973868 A GB4973868 A GB 4973868A GB 4973868 A GB4973868 A GB 4973868A GB 1206869 A GB1206869 A GB 1206869A
Authority
GB
United Kingdom
Prior art keywords
valve
actuator
nose wheel
lever
input means
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
GB4973868A
Inventor
Holm Diethard Boss
Hubert Manner
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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of GB1206869A publication Critical patent/GB1206869A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/50—Steerable undercarriages; Shimmy-damping
    • B64C25/505—Shimmy damping
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/228—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having shock absorbers mounted outside the actuator housing
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

1,206,869. Steering aircraft nose wheels. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 21 Oct., 1968 [25 April, 1968], No. 49738/68. Heading B7H. In nose wheel steering mechanism comprising an hydraulic actuator 11 connected to the nose wheel 16 and controlled by a valve 10 which is connected to a control device 1 through resilient input means 2 and responds to a mechanical feedback of the actuator movement, a doubleacting damping piston 22 is connected to the valve 10 to damp high frequency induced vibrations transmitted from the nose wheel 16 to the valve 10, and the resilient input means 2 are so connected to the means connecting the actuator 11 to the nose wheel 16 as to absorb such vibrations. The damping piston 22 has a passage 23 extending therethrough and slides in a cylinder 21 having a connection 24 to a return line from the valve 10. The nose wheel support 15 is connected by a link 14 and lever 6 to the actuator 11. The resilient input means 2 are connected by a rod 3 to a control arm 4 which is pivoted on the lever 6 and connected by a link 7 and lever 8 to the valve 10. Damping restrictions 27 are provided between the valve 10 and the actuator 11.
GB4973868A 1968-04-25 1968-10-21 Hydraulic actuator mechanism for landing wheel steering Expired GB1206869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0026857 1968-04-25

Publications (1)

Publication Number Publication Date
GB1206869A true GB1206869A (en) 1970-09-30

Family

ID=7072409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4973868A Expired GB1206869A (en) 1968-04-25 1968-10-21 Hydraulic actuator mechanism for landing wheel steering

Country Status (2)

Country Link
FR (1) FR1588700A (en)
GB (1) GB1206869A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141434A1 (en) * 2006-06-07 2007-12-13 Renault S.A.S. Method and system of continuous control of the position of an actuator for changing the compression rate of a thermic engine
WO2008006042A1 (en) * 2006-07-07 2008-01-10 Borgwarner Inc Control method for a variable compression actuator system
CN100434321C (en) * 2007-01-15 2008-11-19 江南大学 Steering control system
GB2482154A (en) * 2010-07-21 2012-01-25 Ge Aviat Systems Ltd Compact shimmy damper for aircraft landing gear
EP3835599A1 (en) * 2019-12-12 2021-06-16 XCMG European Research Center GmbH Damping system for hydraulic systems

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141434A1 (en) * 2006-06-07 2007-12-13 Renault S.A.S. Method and system of continuous control of the position of an actuator for changing the compression rate of a thermic engine
FR2902145A1 (en) * 2006-06-07 2007-12-14 Renault Sas METHOD AND SYSTEM FOR CONTINUOUSLY CONTROLLING THE POSITION OF A COMPRESSION RATE CHANGE ACTUATOR OF A THERMAL ENGINE
WO2008006042A1 (en) * 2006-07-07 2008-01-10 Borgwarner Inc Control method for a variable compression actuator system
US8151746B2 (en) 2006-07-07 2012-04-10 Borgwarner Inc. Control system for a variable compression engine
CN100434321C (en) * 2007-01-15 2008-11-19 江南大学 Steering control system
GB2482154A (en) * 2010-07-21 2012-01-25 Ge Aviat Systems Ltd Compact shimmy damper for aircraft landing gear
EP3835599A1 (en) * 2019-12-12 2021-06-16 XCMG European Research Center GmbH Damping system for hydraulic systems
WO2021116373A1 (en) * 2019-12-12 2021-06-17 Xcmg European Research Center Gmbh Damping system for hydraulic systems

Also Published As

Publication number Publication date
FR1588700A (en) 1970-04-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees