GB650878A - Improvements in or relating to fluid pressure actuated control steering systems - Google Patents
Improvements in or relating to fluid pressure actuated control steering systemsInfo
- Publication number
- GB650878A GB650878A GB23128/47A GB2312847A GB650878A GB 650878 A GB650878 A GB 650878A GB 23128/47 A GB23128/47 A GB 23128/47A GB 2312847 A GB2312847 A GB 2312847A GB 650878 A GB650878 A GB 650878A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheels
- leg
- tube
- control member
- actuating
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
650,878. Aircraft undercarriages. ELECTROHYDRAULICS, Ltd. Oct. 20, 1947, No. 23128. [Class 4] [Also in Group XXIX] In a fluid pressure system for actuating the steerable wheels on an aircraft undercarriage and of the kind comprising a fluidpressure actuating motor controlled by a selector valve device and a followup mechanism and with a centralizing device between the initial control member, and the wheels, the latter can normally move freely under the action of external forces but, when the control member is initially displaced relative to the wheels, the latter become locked and a further relative displacement of the control member causes the motor to drive them in a sense to reduce the displacement. In an embodiment, the wheels 108 are carried by a tube 105 slidable in a leg 100. The actuating mechanism comprises two single acting jack pistons 125 interconnected by a rack in mesh with a toothed quadrant which is connected by curved toggle links 120, 119 to a sleeve 114 rotatable relative to the leg 100. The toothed quadrant is also connected through gearing to a torque rod 137 to provide a repeatback or follow-up signal, the rotation of rod 137 being communicated to a further rod 143 through a knee-joint 142. Sleeve 114 is connected to tube 105 by toggle links 116 and carries a cam 110 which co-operates with a further cam 111 on tube 105 to allow of centering when the wheels are extended. A shock absorber 113 is fixed to the axle bracket of the wheels and is rotatably mounted in a flange 117 in the leg.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB23128/47A GB650878A (en) | 1947-10-20 | 1947-10-20 | Improvements in or relating to fluid pressure actuated control steering systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB23128/47A GB650878A (en) | 1947-10-20 | 1947-10-20 | Improvements in or relating to fluid pressure actuated control steering systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB650878A true GB650878A (en) | 1951-03-07 |
Family
ID=10190581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23128/47A Expired GB650878A (en) | 1947-10-20 | 1947-10-20 | Improvements in or relating to fluid pressure actuated control steering systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB650878A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1659058A3 (en) * | 2004-11-22 | 2013-04-24 | Eaton Corporation | Hydraulic damper for shimmy of aircraft landing gear |
GB2563851A (en) * | 2017-06-27 | 2019-01-02 | Airbus Operations Ltd | Aircraft steering |
CN112193408A (en) * | 2020-09-24 | 2021-01-08 | 中国航天空气动力技术研究院 | Tail wheel follow-up mechanism for solar aircraft |
-
1947
- 1947-10-20 GB GB23128/47A patent/GB650878A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1659058A3 (en) * | 2004-11-22 | 2013-04-24 | Eaton Corporation | Hydraulic damper for shimmy of aircraft landing gear |
GB2563851A (en) * | 2017-06-27 | 2019-01-02 | Airbus Operations Ltd | Aircraft steering |
US10569864B2 (en) | 2017-06-27 | 2020-02-25 | Airbus Operations Limited | Aircraft steering |
GB2563851B (en) * | 2017-06-27 | 2020-04-01 | Airbus Operations Ltd | Aircraft steering |
CN112193408A (en) * | 2020-09-24 | 2021-01-08 | 中国航天空气动力技术研究院 | Tail wheel follow-up mechanism for solar aircraft |
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