Aircraft undercarriage shock-absorber leg |
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IPC classes for russian patent Aircraft undercarriage shock-absorber leg (RU 2247679):
     
 Impact energy absorber / 2246646
Proposed device contains energy absorbing part, movable and stationary support plates. Energy absorbing part can be made up of metal plate members, thickness from 2 to 10 mm, extreme ones being secured on support plates with flat section and camber section and forming cellular structure in section consisting of great number of hexahedrons in section by planes passing through vector of external resultant force with provision of impact energy absorbing owing to flexural strains in metal plate members mainly on chamber sections. Energy absorbing part can contain great number of cells, each formed by two flat metal plates, thickness from 2 to 10 mm, arranged square to external force vector, and two metal plates, thickness from 2 to 10 mm, placed in between, with initial camber in direction square to vector of external force and thrusting against middle of flat metal plates of adjacent cells. Extreme metal plates are secured to support plates with provision of absorption of impact energy owing to flexible strains of metal plates in places of maximum camber and flexural strains of flat metal plates in places of butt-joining of metal plates. Energy absorbing part can be made in form of cellular structure consisting of great number of rectangles made up of metal plate members, thickness from 2 to 10 mm, extreme ones being secured on support plates. Some metal plate members coincide with direction of external force and thrust against middle of metal plate members of adjacent cells arranged square to vector of external force with provision of impact energy absorbing owing to flexural strains in units of intersection of metal plate members. Device provides absorption of impact energy of the order of 0.5-2.5 MJ.
 Damper / 2245469
Damper comprises flexible members and bearing plates assembled in a structure with interference. The flexible members are made of a system of flexible half-rings and flexible damper interposed between the bearing plates and clamped with at least one guiding column and threaded joint, which allows the value of interference and rigidity of the damper to be adjusted. The ends of the flexible half-rings abut against the bearing plates. The cylindrical surface of the half-rings faces toward the interior of the damper and abut against the flexible damper.
 Damper / 2244179
Damper has top and bottom bearing planks. The opposite walls of the damper are inclined.
 Passenger car side energy-absorbing buffer / 2243911
Invention relates to devices aimed at protection of cars in case of collisions and it can be used to protect side surfaces of cars, microbuses and other vehicles together with front and rear bumpers. Proposed buffer contains two protective sections arranged at one level with bumpers, each being connected to car body load-carrying members and provided with support surface in form of U-shaped section, and energy-absorbing devices connected to U-shaped section being uniformly arranged over its length at a distance from each other. Each energy-absorbing device includes definite number of adjoining energy-absorbing members, each being mirror reflection of adjacent one, made integral from cut of round metal rod and includes base, jumper and brace located in relatively perpendicular planes. Bases of energy-absorbing members are connected to outer surface of U-shaped section. Jumpers of energy-absorbing members are arranged coaxially and they interact with outer surface of section. Bases and braces of energy-absorbing members are arranged horizontally, and jumpers, vertically. Each energy-absorbing device is furnished with movable base plate made integral with leaf spring. Braces of all energy-absorbing devices of buffer sections are tilted at preset angle, respectively, in direction from front to rear bumper. Each section of buffer includes also foamed shock-absorbing material units placed in spaces between adjacent energy-absorbing devices, and outer sheath connected to bent off parts of U-shaped section and it can be additionally provided with safety strip connected to its outer surface. Invention provides protection of car body side surface at collision with obstacle to other car. It provides high energy-absorbing capacity and stability of shock-absorbing characteristics of car.
 Passenger car energy absorbing buffer / 2243910
Invention relates to device aimed at protecting cars in case of collisions, and it can used in form and rear bumpers of cars, microbuses and other vehicles. Buffer is divided into central and side sections, the latter being turned backwards at preset angle, and it includes bumper and energy-absorbing devices connected to bumper and arranged uniformly lengthwise at a distance from each other. Two central energy-absorbing devices of buffer, being mirror reflection of each other, are installed adjoining each other. Each energy-absorbing device includes definite number of adjoining energy-absorbing members, each being mirror reflection of adjacent one, is made integral from cut of round metal rod and it includes base, jumper and brace, all arranged in relatively perpendicular planes. Bases of energy-absorbing members are connected to outer surface of bumper, jumpers of energy-absorbing members are arranged coaxially for interaction with outer surface of bumper. Bases and braces and braces of energy-absorbing members are arranged horizontally, and jumpers, vertically. Each energy-absorbing device is provided with leaf springs and movable base plate, braces of all energy-absorbing devices of left-hand and, accordingly, right-hand halves of buffer are pointed to different sides at preset angle in directions from middle to edges of bumper. Buffer includes outer sheath provided with metal strip sections connected to its inner surface which guarantees regulated destruction of sheath in preset places. Invention provides protection at high energy-absorbing capacity and stability of shock-absorbing characteristics of car at collision with obstacle or other car.
 Combined bearing providentia / 2239109
The invention relates to a combined providentiam supports including cable damper and membrane corrugated spring, and is intended to suppress the axial vibration of a rapidly rotating rotors, for example, in aerospace applications, and for use as progesterone elements shockproof devices used in the transportation of goods designations
 The shock absorber / 2238453
The invention relates to the field of engineering and is designed to absorb the energy of moving bodies
 Providentia bearing / 2237204
The invention relates to the field of transport engineering, in particular to elastic damping devices, and can be used in any field of technology to reduce vibration of the rotors of machines and mechanisms, instruments and equipment
 The dynamic vibration damper / 2236617
The invention relates to the field of engineering, namely by means of dynamic damping of various objects
 Damper / 2234014
The invention relates to mechanical engineering and can be used in the construction of devices to absorb and reduce shock loads
 The shock absorber chassis of the aircraft / 2188143
The invention relates to mechanical engineering and aeronautical engineering and, in particular, can be used in the construction of the chassis of the aircraft
 The shock absorber landing gear of the aircraft / 2183180
The invention relates to aviation and for the creation of a landing aircraft devices
 The shock absorber / 2182876
The invention relates to the field of engineering to the field of cushioning protection, machines and other objects, allowing a limited degree of mechanical loads
 Sealing the node pneumatic-hydraulic shock absorber cylinder and rod / 2167082
The invention relates to the field of engineering
 Sealing the node shock absorber / 2162047
The invention relates to the field of mechanical engineering
 Bearing skid chassis or skid the tail bearing (options) and cartridge device to it / 2144489
The invention relates to skid chassis or tail supports
 Double shock absorber / 2081031
The invention relates to shock absorbers chassis aircraft and can be used in the suspension systems of land and water transport
 The shock absorber chassis of the aircraft and the method of filling the hydraulic chamber of the shock absorber chassis of the aircraft / 2057687
The invention relates to aircraft and is intended for use as a shock absorber sessile aircraft /L. a./
 Aircraft undercarriage shock-absorber leg / 2247679
Proposed shock-absorber leg includes cylinder, rod, piston, support and working member in form of system of rods made from monocrystals compressed to solid state between piston and support; generatrix of its surface corresponds to curve of diagram of operation of hydro-pneumatic shock absorber.
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FIELD: aircraft manufacture; manufacture of landing gears. SUBSTANCE: proposed shock-absorber leg includes cylinder, rod, piston, support and working member in form of system of rods made from monocrystals compressed to solid state between piston and support; generatrix of its surface corresponds to curve of diagram of operation of hydro-pneumatic shock absorber. EFFECT: simplified construction. 3 dwg
The invention relates to the field of aircraft construction, in particular for a landing devices used to absorb and dissipate the energy of the aircraft upon landing. Known constructions of landing devices represent a set of elements transmitting and absorbing the impact energy of the tires on the surface of the runway[1], [2]. The disadvantage of these designs is the high complexity. Above mentioned disadvantages can be eliminated by replacing the working fluid of the shock absorber landing gear. Of such devices is the closest to the technical essence and the results achieved by this invention is a hydro-pneumatic chamber of the shock absorber landing gear of the aircraft [1]. The design contains a cylinder, a piston rod, the piston and the working body. The disadvantage of this design is the high complexity. The invention is aimed at simplifying the design. To achieve this, the working body is made in the form of systems of monocrystalline rods, benevolence between the piston and the bearing, forming a surface which corresponds to the curve diagrams of a hydropneumatic shock absorber. The invention is illustrated by drawings, where figure 1 shows a shock absorber, General view; figure 2 is a graph of voltage as a function of temperature when the restoration of the Fort is s single crystals; on the figure 3 - chart of pseudoprophete single crystals. The shock absorber includes a cylinder 1 within which are located the terminals of the single crystal 2, a piston 3 connected with the rod 4, the support 5, the unit heating and cooling 6. The shock absorber works as follows. At the moment of touch chassis ground terminals of the first level, heated by the electric-contact way up to the maximum design temperature, cooled also contact way, returning to its original state, taking the maximum load and reducing it by the amount pseudoproxy deformation of these rods. In the next moment of time involved in the work of the rods of the second level, which act similarly, and so on until complete absorption of the energy. This construction of the shock absorber simpler. Sources of information 1. Copyright certificate №1527815 published 20.10.95. Bulletin No. 29 (prototype). 2. Copyright certificate №2051073 published 27.12.95. Bulletin # 36. The spring strut of the chassis, consisting of a cylinder, rod, piston, bearings and the working fluid, wherein the working fluid is made in the form of rods of single crystals, benevolence between the piston and the bearing, forming a surface which corresponds to the curve diagrams of a hydropneumatic shock absorber.
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