Retractable gear aircraft |
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IPC classes for russian patent Retractable gear aircraft (RU 2088478):
     
 Drive cleaning and landing gear of the aircraft / 2085445
The invention relates to the field of actuators cleaning and landing gear of the aircraft and can be used in the creation of new and modernization of existing aircraft
 Lock the retracted chassis / 2076827
The invention relates to mechanical engineering and can be used for securing cargo or structures up to a height of States, in particular in an aircraft, for fixing the landing gear of aircraft in the retracted position
 Power lock landing gear / 2068799
The invention relates to the field of aviation, and more particularly to a landing devices, and in particular to a retractable landing gear, and is intended for fixation of the retracted chassis
 Aircraft landing gear main leg / 2297366
Aircraft landing gear leg has lever 1 with wheel 2 articulated on fuselage, gas-and-hydraulic shock absorber 4 whose rod 5 is articulated with lever, down lock 9, up lock 11 mounted on fuselage, down lock shackle 10, up lock shackle 12 articulated on lever, leg retraction-extension hydraulic cylinder 13. In center part, shock absorber body is articulated to member 7 made in form of fork whose other end is articulated via ears to cardan 8 which is articulated on fuselage; down lock is mounted on the same member ; down lock shackle is articulated on upper part of shock absorber body.
 Aircraft undercarriage strut / 2307046
Aircraft undercarriage strut contains shock absorber 1 with piston connected with fulcrum 2 by braces 3, folding strut with down position lock and up position lock lug. Eyes are formed on lower part of piston in which cardan is installed hinge connected with lug whose upper part gets into up position lock. Stops made on cardan and on lug limit deflection of lug relative to longitudinal and lateral axes.
 Stand of aviation chassis / 2360835
Stand of aviation chassis comprises hydraulic cylinder, cross brace and cross beam. On cross beam contact platforms are arranged, which are inverted at the angle that provides for self-braking under action of landing loads, and carriage is fixed in central upper part of stand for trajectory of chassis pulling-in and extension.
 Main landing gear of aircraft chassis / 2370413
Invention relates to aviation, namely to aircraft chassis gear. Walking-type chassis contains lifter and consists of shock-absorber hinge-connected to the aircraft framework. The shock-absorber is hinge-connected with brace coupled with carrier that actuates upper brace bearing hooking on a wing when the main landing gear is released. The carrier is provided with a tail, which is hinge-connected with a traction having hinged connection with framework. The brace is controlled by the lifter through the lever, which is hinge connected to the framework. Lifter and carrier are also in hinged connection with the lever. The lifter contains inner mechanical lock and is in hinge connection with the lever. One arm of the lever is hinge-fixed on lever framework, while the other arm is hinge connected with locking cylinder of emergency release of gear. The lock is represented with two jaws having grooves and latch, which are perpendicular to the released brace axis. Bushings of square external circuit are mounted on operating pins of the upper brace unit. Flat surfaces of bushings interact with hook grooves when main landing gear is released.
 Aircraft retractable landing gear / 2389650
Invention relates to aircraft engineering and aircraft retractable landing gear. Retractable landing gear consists of strut hinged to airframe, undercarriage, folding brace strut, retraction/extension drive, damper and undercarriage turning mechanism. Strut has hinged to be pivoted to folding brace strut, while folding brace strut other end is secured to airframe to revolve thereabout. Lever is arranged aligned with undercarriage wheels, oriented along flight direction and located in wheels rotational plane. Pivot is arranged on lever end for it to be jointed to said strut. Damper rod pivot joint is arranged between strut pivot joint and wheels axle on said lever. Dog is secured between aforesaid pivot joints in plane perpendicular to lever location plane. Proposed device comprises tie rod pivot-jointed to said dog and airframe. Said lever, dog and tie rod makes the wheels turning mechanism.
 Aircraft retractable landing gear / 2415777
Invention relates to aircraft engineering, particularly, to retractable landing gear. Proposed landing gear comprises leg 1 secured by suspension 2 to fuselage and articulated with folding brace 4 articulated with landing gear retraction drive 9, gear truck 3, damping cylinder 5, as well as gear truck turn mechanism with tie rod articulated with fuselage and damping cylinder 5. Said tie rod 6 is articulated with damping cylinder via ring 10 with lever 7 arranged on damping cylinder to rotate thereon and jointed with top link of splined hinge. Lever 7 is rigidly secured on ring 10 and has its free end pivoted to tie rod 6 of gear truck turn mechanism.
 Aircraft retractable landing gear / 2415778
Invention relates to aircraft engineering, particularly, to retractable landing gear. Proposed landing gear comprises shock absorbing leg 1 with crosspiece 2 secured thereon and articulated with landing gear IN/OUT tie rod 5. Said tie rod 4 is articulated with IN/OUT drive and aircraft fuselage. Shock absorbing leg turn mechanism is made up of two tie rods 8 and 9 located on one plate and rocker 10 pivoted on aforesaid tie rod 5. First tie rod 8 has its one end secured to fuselage and its other end secured to first arm of rocker 10. Second tie rod 9 has its one end secured to shock absorbing leg 1 and its other end secured to second arm of rocker 10. To be locked in OUT position, shock absorbing leg 1 and crosspiece 2 are provided with detachable fasteners 7 that allow rigid attachment of shock absorbing leg 1 and crosspiece 2 to aircraft engine nacelle 6.
 Aircraft landing gear with, at least, one noise killer / 2418716
Invention relates to aircraft engineering, particularly, to aircraft landing gear with noise killer and to aircraft equipped with said noise killer. Aircraft landing gear comprises noise killer 2, 3 linked with component 4 of said landing gear 1. Said noise killer 2, 3 incorporates separate circuit 5, 6 comprising geometrical cells 7. Note here that said circuit is arranged nearby component 4 so that one of its parts 8, 9 is, in fact, orthogonal with airflow E in final position of said component 4 with landing gear 1 in extended position.
 Aircraft landing gear with folding brace stabiliser release / 2453471
Aircraft landing gear comprises leg 1 pivoted to aircraft, folding brace 10 with two levers 11, 12, and brace stabiliser 20 in straight position. Said stabiliser 20 comprises two rods 21, 22 pivoted together and telescopic release 30 (release drive), for example, simple-action hydraulic cylinder. End 32 of release drive rod 31 is coupled with one of said rods 22. Rod 22 has arc-like slot 26 to receive rod 31. End of release drive rod 31 makes free moves in said arc-like slot without obstructing displacement of rod 22 outside of zigzag line position.
 Device to decrease aircraft undercarriage length / 2488523
Invention relates to aircraft engineering. Undercarriage comprises leg to be hinged to aircraft airframe and lower part with wheels mounted thereat. Lower part can move relative to said leg. Additionally, undercarriage comprises device decreasing undercarriage length between extended and retracted positions. Said device comprises interconnected first and second means. Said first means is engaged with undercarriage lower part or with moving element to displace together when lower part displaces relative to leg. Second means is articulated to airframe to allow it go to stop unless undercarriage is in retracted position.
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(57) Abstract: Usage: the invention relates to the field of aviation technology. The inventive chassis contains a rack with folding strut, wheel cart with a heel bumper, pivotally connected with the bar by means of a lever. Chassis fitted with engine for reversal truck, consisting of a system of articulated units and rods. Rocking chair made of duplica, hinged at the front and one shoulder connected with a thrust, and another shoulder thrust through connected to the rocking chair. 1 C.p. f-ly 7 Il. The invention relates to the field of aviation technology and relates to retractable landing gear of the aircraft to the aircraft. Known retractable in-flight chassis, designed for the movement of aircraft on the ground, and energy absorption during landing, comprising northstone, carts with wheels, the platform and the knee [1]The disadvantage of analog is the impossibility of placing the truck in gear extended at a sufficient distance from the sample rack, for example, power frame, the position of which in some cases is caused by the arrangement of the aircraft. Nodes mount rack, podcase located region, that requires additional sub-volumes. Known design retractable chassis containing a rack with folding strut, wheel cart with podpjatochnoj absorber, pivotally connected with the bar by means of the lever, and the main damper hinged to the rack and wheeled the cart [2] is a prototype. The disadvantage of the prototype is the constancy of the shape of the landing configuration when cleaning bearings that require additional layout volumes for the landing gear retracted. The objective of the invention is to reduce the volume occupied by the landing gear in the retracted position. The problem is solved due to the fact that retractable gear containing a rack with folding strut, wheel cart with podpjatochnoj absorber, pivotally connected with the bar by means of the lever, and the main damper hinged to the rack and wheeled the trolley, equipped with the mechanism of spread of wheeled carts, which consists of a system of articulated units and rods at the top of the rocking chair is made of duplica, hinged at the front and one shoulder is connected with a pull attached to the fuselage, and the other shoulder through vtone of duplica, and the truck is equipped with a hinged interconnected rods, one of which is telescopic, connected with the lower shoulder of the swing, and the other rod hinged to the cart. The invention is illustrated by drawings, where: Fig. 1 shows a chassis in extended position, side view; Fig. 2 is the same, in the Parking position, and Fig. 3, in the retracted position of Fig. 4 is the same, top view; Fig. 5 node shock absorber with a rocking chair and thrust of Fig. 6 cart with rods, but in the released position of the chassis; Fig 7 is the same, in the retracted position. Retractable chassis contains the lift 1, pivotally connected to the fuselage and with the stand 2. On the fuselage hinged rod 3. At the front hinged main absorber 4, the other end of which is attached to a wheeled cart 5. Hour at the lower end has a hinge 6 and is connected with the folding strut 7, hinged to the fuselage. The truck is equipped with telescopic draft 8 and podpjatochnoj absorber 9. The truck has a hinge 10 for fastening lever 11 connected to the hinge 6 hours 2. At the front fixed lower rocker 12 and the upper duplica rocking 13, United is key. The cart can be fixed rod 15, pivotally connected to the telescopic thrust 8, which is connected to the bottom of the rocker 12. So the bottom rocker 12 is made of duplica for fastening on her thrust 14. Chassis construction operates as follows. Under the action of the lift 1 hour 2 is rotated in the hinge fitting (in this embodiment, clockwise), while the rod 3 attached to the fuselage through the rocker 12, 13 and rod 14 pushes the main absorber 4, which (in this case, acting as a hard thrust) rotates the carriage 5 relative to the hinge 6 (trolley 5 is pressed against the lever 11 heel shock absorber 9 and in this case, all these three elements make up like one). The presence of transverse displacement fuselage node folding strut 7 from the plane of the cleaning rack creates the possibility of stacking links mowing in the retracted position in a limited height space, which defines the retracted position of all the other support elements. In addition duplica rocking 12 controls telescopic thrust 8, which when the cleaning support, together with a thrust of 15 lowers the compressed heel shock absorber 9, under the influence of which is subjected to the design of the chassis provides a consolidation of the landing gear on the power elements of the fuselage, remote for layout reasons, from the location of released rack, which is determined by the position of the center of gravity of the aircraft in landing configuration. The chassis is removed in a limited space, that contains the elements of the sample rack that allows you to reduce the volume of the aircraft intended for the landing gear. 1. Retractable landing gear of the aircraft, containing the rack with folding strut, wheel cart with podpjatochnoj absorber, pivotally connected with the bar by means of the lever, and the main damper hinged to the rack and wheeled the trolley, wherein the chassis is provided with a mechanism of reversal wheeled trolley, consisting of a system of articulated units and rods at the top of the rocking chair made two shoulders, hinged at the front and one shoulder is connected with a pull attached to the fuselage, and the other shoulder through the second thrust is connected to the lower rocker mounted on the rack and associated with the main shock absorber. 2. Chassis under item 1, characterized in that the lower rocking chair made two shoulders and wheeled the trolley is provided with a hinge connected between the captivity on the trolley.
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