GB664548A - Improvements in or relating to bogie undercarriages for aircraft - Google Patents
Improvements in or relating to bogie undercarriages for aircraftInfo
- Publication number
- GB664548A GB664548A GB1039149A GB1039149A GB664548A GB 664548 A GB664548 A GB 664548A GB 1039149 A GB1039149 A GB 1039149A GB 1039149 A GB1039149 A GB 1039149A GB 664548 A GB664548 A GB 664548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jack
- bogie
- piston
- undercarriage
- absorber
- 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
- B64C25/42—Arrangement or adaptation of brakes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
664,548. Undercarriages. BRITISH MESSIER, Ltd. April 3, 1950 [April 19, 1949], No. 10391/49. Class 4. An aircraft undercarriage incorporating a pivoted bogie frame comprises a jack, cylinder and piston connected between the undercarriage frame and, a point on the bogie spaced from the pivotal connection thereof to the frame for applying torque to the bogie opposing that set up upon application of the landing wheel brakes. As shown in Fig. 1 a combined oleo-pneumatic shock-absorber and jack is mounted between the bogie 14 and a lug 29 carried by the undercarriage leg, a pipe 35 connecting the brake system with the space behind the movable piston 34 of the shock-absorber. Upon application of the brakes the piston 34 is moved to compress the air in the space 33 of the shockabsorber and thus force the jack piston 26 out of its cylinder and apply an opposing torque to the bogie. In the embodiment according to Fig. 2 the brake pressure supply pipe 57 communicates with a combined oleo-pneumatic shock-absorber and jack 40 through relays 70, 90 and a pipe 51. The latter is connected to a space between the piston rod 41 and the cylinder of the jack, so that the jack extends upon application of the brakes. The piston rod 41 is hollow and contains a piston 47 attached to a further hollow rod 48 connected to a pipe 49 in communication with the undercarriage retraction control mechanism, so that the length of the jack is altered during retraction in order to ensure the necessary tilting of the bogie in relation to the undercarriage leg for stowage purposes. Alternatively the shock-absorber and jack may be separate, the brake pressure liquid being supplied only to the jack, which is fitted with relief valves to allow its rapid yielding in the event of the bogie moving over uneven ground.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1039149A GB664548A (en) | 1949-04-19 | 1949-04-19 | Improvements in or relating to bogie undercarriages for aircraft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1039149A GB664548A (en) | 1949-04-19 | 1949-04-19 | Improvements in or relating to bogie undercarriages for aircraft |
Publications (1)
Publication Number | Publication Date |
---|---|
GB664548A true GB664548A (en) | 1952-01-09 |
Family
ID=9966964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1039149A Expired GB664548A (en) | 1949-04-19 | 1949-04-19 | Improvements in or relating to bogie undercarriages for aircraft |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB664548A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3027123A (en) * | 1959-03-19 | 1962-03-27 | Cleveland Pneumatic Ind Inc | Brake compensator for tandem landing gears |
US3845919A (en) * | 1974-01-07 | 1974-11-05 | Boeing Co | Landing gear truck pitch damping |
GB2428650A (en) * | 2005-08-04 | 2007-02-07 | Messier Dowty Ltd | Landing gear |
FR2918637A1 (en) * | 2007-07-09 | 2009-01-16 | Airbus France Sas | Braking energies balancing system for aircraft, has unit for balancing energies applied on gears during landing or aborted take-off phase of aircraft, and including calculator calculating delay according to mass and centering of aircraft |
GB2483472A (en) * | 2010-09-08 | 2012-03-14 | Messier Dowty Ltd | Aircraft landing gear with lockable bogie pitch linkage |
US9919793B2 (en) | 2014-10-16 | 2018-03-20 | Safran Landing Systems Uk Ltd | Aircraft landing gear assembly |
-
1949
- 1949-04-19 GB GB1039149A patent/GB664548A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3027123A (en) * | 1959-03-19 | 1962-03-27 | Cleveland Pneumatic Ind Inc | Brake compensator for tandem landing gears |
US3845919A (en) * | 1974-01-07 | 1974-11-05 | Boeing Co | Landing gear truck pitch damping |
US8376272B2 (en) | 2005-08-04 | 2013-02-19 | Messier-Dowty Limited | Landing gear |
GB2428650A (en) * | 2005-08-04 | 2007-02-07 | Messier Dowty Ltd | Landing gear |
GB2428650B (en) * | 2005-08-04 | 2011-01-12 | Messier Dowty Ltd | Landing gear |
US8104711B2 (en) | 2005-08-04 | 2012-01-31 | Messier-Dowty Limited | Landing gear |
US8398020B2 (en) | 2005-08-04 | 2013-03-19 | Messier-Dowty Limited | Landing gear |
US8382032B2 (en) | 2005-08-04 | 2013-02-26 | Messier-Dowty Limited | Landing gear |
FR2918637A1 (en) * | 2007-07-09 | 2009-01-16 | Airbus France Sas | Braking energies balancing system for aircraft, has unit for balancing energies applied on gears during landing or aborted take-off phase of aircraft, and including calculator calculating delay according to mass and centering of aircraft |
US8317131B2 (en) | 2007-07-09 | 2012-11-27 | Airbus Operations Sas | Braking-energy equalization system |
GB2483472B (en) * | 2010-09-08 | 2012-08-15 | Messier Dowty Ltd | Aircraft landing gear |
GB2483472A (en) * | 2010-09-08 | 2012-03-14 | Messier Dowty Ltd | Aircraft landing gear with lockable bogie pitch linkage |
US9919793B2 (en) | 2014-10-16 | 2018-03-20 | Safran Landing Systems Uk Ltd | Aircraft landing gear assembly |
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