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Hydraulic shock absorber with controlled characteristic Shock absorber consists of a working cylinder, inside which a piston is installed, and a compensation chamber. The piston is made of two plates having ring-shaped slots to pass damping fluid with a gasket in-between. The slots in the plates are arranged so that the holes can be partially or completely closed at turning of the plates in respect to each other. A rebound valve and a compression valve with springs and weights fixed at the valve heads are installed in the piston. The upper piston plate can be turned in respect to the lower plate. The turn is carried out by the spring rigidly connected to a rod and a bush. In case of ambient air temperature changes, the spring changes its length and turns the upper plate in respect to the lower one. The compensation chamber is fitted by two pistons inside, one of them has a valve, the other one separates the working fluid and inert gas. |
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Invention relates to machine building. A hydraulic damper includes an operating cylinder, in which an arrangement is made for an elastic stock with a piston rigidly fixed on it and on its end face there are radial ribs and projections having passes bent at a right angle to the piston axis. On a vertical generatrix of the cylindrical surface of the piston there are slots of a similar shape. The slots are connected on one side to the passes arranged in walls of the operating cylinder throughout their height and connected both to its below-piston and above-piston cavities, and on the other side, they are connected to the passes located in the piston. Opposite ends of channels have an L-shape and are located with a gap relative to the ribs rigidly fixed on upper and lower end surfaces of the piston. |
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Hydraulic vibration isolating support of power unit (versions) As per the first version, a support with fasteners includes working and compensation chambers separated with an elastic diaphragm with throttle holes and a partition wall with holes. Chambers are restricted with a support unit, an elastic shell and an elastic diaphragm. The support has an additional elastic element located between the diaphragm with holes and the partition wall. The support housing has a conical part, against which the elastic shell and the support unit is borne. The inner central part of the housing includes a bar. As per the second version, chambers of the support are divided between themselves with a partition wall with throttle channels. The partition wall is made in the form of a bushing vibration isolator consisting of external and internal housings and an elastic element with throttle holes, which is located between them. The support has an elastic element or a bar transmitting the movement to its support part to the internal housing of the vibration isolator. As per the third version, chambers of the support are divided between themselves with a partition wall in the form of a plate-like vibration isolator with throttle channels. The vibration isolator consists of a lower housing with a central bar, an upper housing and an elastic element with throttle holes, which is located between them. |
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Shock absorber valve located between its lower and compensation chambers Valve (1) of a shock absorber includes trim (4) sliding in holder (6) of the trim, and base (8) supported from the shock absorber bottom. Holder (6) of the trim is retained with base (8) by means of elastic retention device (28) and has the possibility of being moved relative to base (8) between a compression position and an extension position. Holder (6) of the trim includes seat (10) and housing (12) located in base (8) under seat (10). Retention device (28) is rigidly installed with one of its sides on housing (12) of holder (6) of the trim and includes part (32) located under the lower side of base (8) and borne against it in the extension position of holder (6) of the trim. The shock absorber includes a piston, a compensation chamber enclosing the upper and lower chambers, and the above valve (1). |
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Hydraulic damper with controlled parameters Proposed damper comprises body, cylinder, rod with piston and extra piston to divide said cylinder to three chambers. Different-stiffness spring is fitted in every said chamber. Said chambers are communicated by pipelines via controlled throttles and solenoid valves. Pipeline is connected with feed main and discharge line. Throttles and valves are controlled by control unit in response to signals fed by the driver. |
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Shock-absorbing device with adjustable characteristics Shock-absorbing device consists of an operating cylinder, in which two dividing pistons forming three operating chambers are located. There is one spring in each chamber. A nut of the operating cylinder, through which a stock passes, is screwed on both ends of the operating cylinder. One side of the stock is attached to the dividing piston to transfer forces to it, and its other side is provided with an eye lug for attachment to a car frame and a suspended lever. A stock cuff is installed between the stock and the nut of the operating cylinder. A high pressure pipeline, in which systems of compression and rebound valves and adjustable throttles are located, is provided from the upper operating chamber to the lower operating chamber. There is a branch between two adjustable throttles, which leads to the intermediate operating chamber. One more high pressure pipeline for supply of working liquid is connected to the upper and lower operating chambers, on each of which one control valve and one check valve is installed. One more pipeline is connected to the intermediate operating chamber for discharge of working liquid, on which a control valve and a check valve is installed as well. |
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Damper includes a base with a rigidly fixed stock at its bottom, and guide, elastic and damping devices. Guide device is made in the form of a cylindrical sleeve with formation of a tight annular cavity between outer surface of a stock and inner surface of a sleeve. Bottom of the sleeve is fixed in the sleeve rigidly attached to the base of a protected object. An elastic device is located in the annular cavity. Lower part of the elastic device is supported on the bottom and upper part is supported on the piston. The piston is made in the form of a disk and located with a throttling gap relative to the stock. In upper part of the stock there located is a movable cover plate relative to the stock, which consists of an annular flange with a seal relative to the stock and a sleeve rigidly attached to the flange and enveloping the outer surface of the cylindrical sleeve through a seal. Upper part of the elastic device is made in the form of a cylindrical spring, the upper end face of which is supported on the cover plate, and the lower one is supported on the piston. A supporting element of the vibroisolated object is fixed on the cover plate. Lower part of the elastic device is made in the form of a pack of flat annular springs fixed in the sleeve by means of an elastic spacer sleeve and stiff supports. Annular springs are fixed on the stock with their central part made in the form of a hole coaxial to the stock through a stiff spacer sleeve. The stock is hollow and has an inner threaded hole in its lower part and connected to a threaded bar rigidly attached to the bottom through a stiff support and an elastic washer. |
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Combined elastically damping device Device includes a base, and guide and shock-absorbing devices. A stock is rigidly fixed in the bottom of a cylindrical sleeve with formation of a tight annular cavity. Bottom of the cylindrical sleeve is fixed in the sleeve rigidly attached to the base of a protected object. A spring is located in the annular cavity and supported with its lower end face from the bottom and with its upper end from the piston. The piston is made in the form of a disk and located with a throttling gap relative to the stock. A cover plate that is movable relative to the stock is located in upper part of the stock. Cover plate consists of an annular flange with a seal and a sleeve rigidly attached to the flange and enveloping the outer surface of a cylindrical sleeve through the seal. Spring is located coaxially to the stock and its upper end face is supported from the cover plate and its lower end face is supported from the piston. A supporting element of the vibroisolated object is fixed on the cover plate. On the sleeve flange there rigidly fixed is an elastically damping device consisting of lower and upper support flanges of a plate type. Elastically damping element made from twisted wire of thread waste type is located between flanges. Upper threaded end of the stock is connected to a threaded hole in upper supporting flange. In the elastically damping device there is a through central hole for passage of the stock. |
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Proposed damper comprises case 1 connected with entity to be damped. Main rod 2 is attached to base by appropriate attachment assembly 3. Cylinder 5 arranged inside main rod 2 to make along with its wall an annular gas cavity 6 communicated via holes 8 with gas cavity of case 1. Cylinder 5 houses extra rod 4 with hollow rod 10 with piston 11 secured thereto. On one side rod 12 with piston 13 is located in hollow rod 10 while, on opposite side, it has its end coupled with case 1. Main rod 2 houses dividing piston 15 fitted on hollow rod 10 to seal hydraulic cavities 15 and 16 relative to case gas cavities 9. |
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Damper includes at least two chambers partially filled with liquid, which are interconnected with each other on their lower ends. At least one chamber is tightly closed on its upper end so that a closed air space is formed above liquid. At least one other chamber on its upper end is opened at least partially. Closed air space (V0) is divided at least into two air sections (V01-V0n). One air section (V01) is located immediately above liquid (3), and one or more air sections (V02-V0n) are connected to air section(V01) located immediately above liquid (3), and/or with the corresponding neighbouring air section (V02-V0n) through holes (7). Holes (7) are made so that they can be closed with a seal irrespective of each other by means of valves. Sensor (10) determines the load variation, and thus natural vibration frequency of facility or mechanism structure. Measurement values of sensor (10) are used with control unit (8) so that value of closed air space (V0) can be controlled by valve opening and closing. |
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Hydraulic vibrating support includes housing (1) with working chamber (3), compensation chamber (10) and metal partition wall (5), which is filled with electrorheological damping fluid. Working chamber (3) is restricted with supporting plate (4) and elastic shell (2). Compensation chamber (10) is restricted from below with corrugated membrane (11). In partition wall (5) there made are orifice holes (12) and intermediate cavity (6), in which pack of piezoelectric plates (7) fixed by means of elastic corrugations (8) to orifice holes (9) is arranged. Gas chamber (13) is separated from compensation chamber (10) with corrugated membrane (11), restricted from below with tray (14) and filled with partial mixture of gases with close temperatures of phase transitions of the second order. |
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Damper includes working cylinder with elastic stock and piston arranged in it. Radial ribs and projections having the channels bent at right angle to longitudinal stock axis are provided on piston edge. Discs of smaller diameter in comparison to diameter of piston are adjacent to above-piston and under-piston end surfaces of piston with possibility of angular rotations. Discs are rigidly fixed on stock of solid cross-section, which is arranged in hollow stock in movable manner. Channels of curved shape, which interact with channels of stocks of solid and hollow cross sections, are made in discs. Channels include ball-shaped movable body designed for overlapping of curved shape of disc channels. Spiral-shaped through slots which have variable cross section throughout their length are made in discs coaxially to vertical channels of piston. |
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Adaptive hydromechanical damper Damper comprises cylinder with piston and hollow rod. Piston is provided with L-shape channels. Spherical body of revolution displaces in said rod. Rod cavity consists of different-diameter intercommunicated channels. Said channels are arranged stepwise along rod length. Smaller-diameter channel is located at push rod top while larger-diameter channel is located at attachment of piston to rod. |
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Device for damping stretching and contracting forces Device 100 comprises damping system 10 retained in case 11 and provided with flexible element 12, and hydraulic damping device. Device 100 has also piston con rod 2 to displace in lengthwise direction L relative to case 11 and piston head 3 formed in con rod face section. Piston head 3 is retained in hydraulic chamber 7 to displace relative to first hydraulic chamber 17. Piston head divides first hydraulic chamber 17 into front part 17a distant from con rod 2 and rear part located nearby con rod 2. Hydraulic damper has first system to transfer hydraulic fluid from front part 17a via extra valve 4 into rear part and second hydraulic chamber 18 is piston head moves along first hydraulic chamber 17 toward front part 17a. Hydraulic damper has second system to transfer hydraulic fluid from rear part and second hydraulic chamber 18 via ball check valve into front part 17a if piston head 3 moves along first hydraulic chamber toward rear part. |
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Damper consists of base and of guiding and damping devices. A rod is rigidly fixed in a bottom of the cylinder sleeve forming a pressure tight circular cavity. The bottom of the cylinder sleeve is secured in a bush rigidly jointed to the base of a protected object. A spring in the circular cavity with its lower end rests against the bottom, while with its upper end - against a piston. The piston corresponds to a disk with a throttling orifice relative to a rod. A cover moveable relative to the rod is positioned in an upper section of the rod. The cover consists of a circular flange with a packing and a bush rigidly tied with the flange. The bush envelops external surface of the cylinder sleeve by means of the packing. A spring, an upper end of which rests against the cover, while a lower one - against the piston, is located coaxially to the rod. A bearing element of the vibration insulated object is fixed on the cover. |
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Hydraulic damper consists of piston of two parts and of separate rods movably set one relative to another. Through slots of arc shape are made on halves of the piston in vertical plane with constant radius. Ribs adjoining lugs are movably secured in the slots. The ribs are rigidly fixed on contacting each other planes of the piston halves. The lugs are set on external end surfaces of the piston halves and are equipped with horizontal channels transforming into vertical ones. The lugs and horizontal channels have arc-shape of constant radius along their length. |
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Hydraulic damper of vibrations Hydraulic damper of vibrations consists of working cylinder wherein there are located two parts of piston equipped with hollow and solid rods of round and circular cross sections. Parts of the piston are equipped with channels positioned in lugs and with radial ribs. In the walls of the working cylinder there are made channels transforming into horizontal sections to facilitate current of working fluid supplied to partitions made on surface of halves of the piston. |
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Hydraulic damper consists of working cylinder comprising movable piston of two parts. Parts of the piston are secured on a hollow and solid rods of circular and round sections and on their surfaces they are equipped with radial channels and lugs with channels curved at right angle. Radial ribs are rigidly secured on disks movably set in vertical slots. Vertical slots are made on internal generating cylinder surface of the working cylinder both from the side of its above-piston and sub-piston cavity. Disks with ribs are spring loaded with compression springs relative to internal end parts of the working cylinder. |
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Damper consists of case, of enclosed in it cylinder, of rod installed in cylinder, of stop and piston with relief orifices arranged successively on rod, and of valve unit made as packages of disks of various diametre, upper of which interacts with stop. The stop has circular grooves on external surface, whereon there are loosely fit compressed disks of the valve unit; notably, the package of disks of smaller diametre interacts with the end of the grooving, while the package of the disks of bigger diametre interacts with the end of the piston. On the circular working face at the upper end of the piston there is installed the working package of flexible disks centred along external diametre in the central cavity of the fixed cover, positioned in side slots of the rod. The spring-loaded valve is loosely fit with its internal diametre on external surface of the rod, while with its lower end it overlaps internal diametre of the package of the flexible disks, thus facilitating a calculated gap between the lower end of the valve and the central stop of the piston. |
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Hydraulic shock absorber with controlled characteristic Shock absorber consists of working cylinder, inside of which there is installed piston with throttling orifices. A rebound valve and compression valve, shutting throttle orifices, are installed in the piston. Tightness of each valve adjoining the piston is ensured by means of a spring with a washer. A rod is attached to the piston by means of thread. Overload relief rebound and compression valves are arranged around the working cylinder along periphery. Springs of the overload relief valves have different rigidity. Each overload relief valve is installed in a case and is compressed to a seat by means of a spring. The seat of each overload relief valve is pressed into the case. The overload relief valves are coupled with the working cylinder by means of pipes with connectors. Inside a compensating chamber has a piston dividing working fluid and inert gas- nitrogen. The compensating chamber is coupled with the working cylinder by means of a high-pressure pipeline. On top the working cylinder is closed with a nut. A collar of the rod is installed between the rod and the nut of the working cylinder to ensure pressure tightness. |
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Proposed damper comprises multilayer rod with layers of different acoustic compliance. Every said layer represents thick-wall cylinder on foot with thread made on cylinder inner surface and foot outer surface. Tight casing is filled with fluid and arranged on the rod. Damping elements represent split plates that form lugs. Each lug is perforated and features intrinsic frequency of elastic vibrations. Distance from foot outer surface to nearest perforated hole makes at least 1/3 of lug length. |
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Mounting consists of cylinder with support flange, of rod installed in cylinder, of movable seat member attached to piston, and of resilient members. The first resilient member transfers loads in radial directions, while the second one - in axial direction. The mounting is additionally equipped with a packing and with a hold down member installed in the cylinder. The first resilient member has a shape of a bushing, while the second one is made in form of two washers and one ring. The bushing and washers are made out of non-woven porous wire material. The rod of the piston passes through an opening in the ring. The bushing is strung on the rod. One washer is located between the piston and the ring, while another - between the ring and the hold-down member. A lower and an upper cavities of the cylinder are filled with viscous fluid and are communicated via gaps in porous material. Packing is connected with the cylinder and the rod. |
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Damper consists of working cylinder, of rod and piston. The piston consists of two parts movably fastened on the piston in axial direction and equipped with vertically arranged channels with horizontal sections adjoining ribs. A recess of a cylinder shape is made in an upper part of the piston; the recess interacts with a response lug of a lower part of the piston. A compression spring is installed between parts of the piston. The lower part of the piston is equipped with a row of additional vertical channels of different length and diametre gradually transferring into horizontal sections lengthwise axes of which are set off relative to each other by height. |
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Telescopiform bearing pneumatic shock adsorber (tbpsa) Invention relates to field of mechanical oscillations antihunting, particularly in suspensions of vehicles. Pneumatic shock absorber contains casing with fixation facilities to one part of object. In casing it is installed hollow piston (3) with fixation facilities to other part of object. Piston (7) is connected by bar to casing. Switching-valve package allows spring-loaded gate, installed with ability of communication to each other of adjacent head ends. Control assembly of gate contains electronic commutator, connected at inlet to electronic sensors, and at outlet to drive of gate of switching-valve package. Bar is implemented as hollow. In bar there are implemented drain ports with all head ends. Gate in the form of hollow cylinder is located nearby drain port of middle head end. |
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Damper comprises working cylinder, in which piston is movably installed. Piston consists of two parts, which are rigidly fixed on hollow and solid stems of circular section. Parts of piston are equipped with radial ribs on their external surfaces and protrusions with channels bent at the right angle to horizontal and vertical plane. Protrusions with horizontal channels are arranged as curvilinear and are arranged on internal surfaces of piston parts. Longitudinal axes of protrusions symmetry are displaced relative to each other in diametral plane along radius. A blade wheel, blades of which are equipped with openings of various diametre is installed on solid stem in space between piston parts. Openings of smaller diametre during angular turn of blade wheel may adjoin channels of lower piston part protrusions, and openings of larger diametre may adjoin channels of upper piston part protrusions. |
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Telescopic adjusted-load shock absorber Invention relates to automotive industry, particularly to automotive shock absorbers. Proposed shock absorber comprises casing, cylinder, compensating chamber communicating, via throttling orifices, with the cylinder chamber, rotary controlled-from-outside ring to vary throttling orifice cross section, push rod, piston with bypass valve and blow-back valve, compression spring and guide bushing. Aforesaid rotary ring is fitted in the rod end and fixed to the compression spring end. The spring other end faces the piston and is fastened to the push rod. Ring surface in contact with the throttling orifice surface have various-cross section calibrated orifices. Turning the push rod in the guide bushing allow the channels to form, together with throttling orifices, through orifices with different cross section area. |
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Vehicle hydro pneumatic shock absorber Invention relates to automotive machine building, particularly, to automotive cushioning systems. The proposed shock absorber comprises hydraulic cylinder filled with working fluid and accommodating piston and rod, and hydraulic accumulator. The rod lower part is furnished with radial throttling orifices and spring-loaded control plunger with edge covering aforesaid orifices. The said radial throttling orifices are spaced along the rod length so that the said control plunger jumps the orifices in turn, thus gradually varying the total flow section. The control plunger is fitted in the piston, outside the working fluid flows, and can deviate from its normal position only under gravity. |
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Telescopic element with internal stop to be overcome Telescopic element includes cylinder where rod with piston is installed so that it can slide telescopically. The internal stop mechanism is overcome by exceeding the preset effort when rod leans against walls inside the cylinder in the direction of compression. The internal stop mechanism is provided with stopping item, which continues inside the said rode in the open hole and projects behind it. The stopping item is retained on rod by means of pin. |
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Shock absorber consists of hollow body, of rod, of movable and additional packing of rod. The rod is designed to perform axial travel. The additional packing of the rod is separated from the movable packing of the rod with a circular groove. Additional cavities are made in the body; these cavities are coupled with the circular groove. |
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Shock absorber consists of hollow body filled with elastomer, of rod and of movable packing of rod. The rod is designed to perform axial movements. The movable packing of the rod is made in form of successively arranged sections separated with circular grooves. Step plungers are installed in the body. The steps of the plungers of smaller diameter are conjugated with the cavity of the body. The steps of the plungers of bigger diameter are conjugated with circular grooves separating the sections of the movable packing of the rod. |
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Power unit hydraulic mounting support Invention refers to the sphere of machine building immediately dealing with design of devices providing for absorption of vibrations generated in the course of power units operation. The hydraulic mounting support is composed of a pot (1) with a lid (2). Between the pot and the lid, attached to the former and to the latter with the help of threaded fasteners (13) there is a deflector positioned (4) consisting of plates (5, 6). In the plates there is a throttle channel (7) arranged that connects the fluid-containing cavities (8 and 9) positioned opposite sides of the deflector (4) between the diaphragms (10 and 11). A rod (18) is connected to the diaphragm (11) and the diaphragm seat. Both sides of the pot (1) bottom there are O-ring resilient elements mounted (16 and 17) fabricated of a polymer material. The resilient elements encircle the rod (18) between the diaphragm (11) seat and the nut (22) screwed onto the rod. |
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Pneumatic suspension comprises rubber-cord casing with cover forming work space, additional capacity located between them and baffle with valve unit. Valve unit includes cylinder installed along suspension axis, radial bypass holes, piston and rod fitted in cover. Valve unit is made in the form of damping unit self-regulating by amplitude and direction of vibrations. In valve unit body the cylinder with piston is installed forming circular cavity together with body. Circular cavity is connected with additional capacity space and with rubber-cord casing space via radial bypass holes closed by flexible elements attached to outer surface of body. Circular cavity is also connected with cylinder space via radial channels made in the centre part of cylinder at distance equal to piston height. Piston is connected with rod made as resilient core and forms together with cylinder the over-piston space communicating with rubber-cord casing space and under-piston space communicating with additional capacity space. |
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Hydraulic damper comprises operating cylinder and installed in it movably piston with valves. Piston and a pair of ring-shaped retainers are rigidly fixed on rod. In the space between retainers the piston spring-loaded from two butt-ends by compression springs is movably fitted on cotter. The piston is provided with vertical channels going into horizontal position. Channels contact with varying in width vertical recessions. Recessions are made on circumferential generatix of rod surface and are interconnected with horizontal sections of vertical channels which are located in the rod and then go into horizontal sections. Longitudinal axes of the latter are positioned above ring-shaped retainers in over-piston and under-piston chambers of operating cylinder. |
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Hydro-pneumatic flexible element Hydro-pneumatic flexible element incorporates the main cylinder with a piston and a con-rod and the additional cylinder. The main cylinder head end accommodates a pneumatic chamber, while the rod end has a hydraulic chamber. The additional cylinder is arranged in a barrel and filled with fluid. The main cylinder con-rod free end is furnished, in the hydraulic chamber, with and end face piston. The two-wall additional cylinder inner wall is furnished with a channel, the said inner wall end being provided with an additional piston. At that the aforesaid barrel is fitted with a servo element designed to interact with the additional cylinder inner wall. |
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Facility for transport vehicle antihunting Facility for transport vehicle antihunting contains absorber, outfitted by piston, separating its internal part for top and bottom interstices. There are additionally implemented two passages in absorber. Top passage connects top interstice of absorber with main line, which is connected to the first electromagnetic valve, and with main line, connected to control unit and to sliding valve thought the passage, implemented in sliding valve body. The first electromagnetic valve is connected to main line which is connected to sliding valve thought the passage, implemented in sliding valve body. Bottom passage connects bottom absorber interstice with main line which is connected to the second electromagnetic valve and with main line connected to the control unit and sliding valve thought the passage, implemented in sliding valve body. The second electromagnetic valve is connected to main line which is connected to sliding valve thought the passage implemented in sliding valve body. Sliding valve is outfitted by plunger located in midposition due to springs and by floating electromagnet geared by control unit. It is a main line which connects two passages implemented in sliding valve body with input to hydraulic motor. Also it is a main line connecting two passages implemented in sliding valve body with hydraulic motor output. Hydraulic motor is drive of peripherals. |
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Invention relates to hydraulic shock-absorbing struts, particularly, to the strut adjustment devices, primarily to such devices that allow stabilising the automotive suspension shock struts at ambient temperature varying from +40°C to -40°C irrespective of the used oil type. The hydraulic shock-absorber incorporates a hydraulic cylinder with drain ports communicating the piston and rod spaces, a rod, a drain port spring and drain port plate with one or several holes for oil to pass through. A part of one or several holes is constantly above the drain port or piston holes. The drain port twisted spring one end is rigidly attached to the plate, its second end being coupled with the rod. The said plate can rotate driven by the spring when the length of the latter varies at temperature variation. The said spring can be cylindrical connected to the plate via a sleeve rigidly linked with the plate and spring. Invention can be used, for example, in the VAZ-type car front suspension shock strut. |
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Invention relates to devices designed to reduce vibration and shock effects, and may be used in designing anti-vibration and anti-shock protection of whatever engineering systems and structures. The damper incorporates a rod, damping elements and plates. The rod is a multi-layer design, the layers featuring different acoustic susceptibility. Every layer is fabricated as a thin-wall cylinder supported by a leg and having a thread made on the cylinder inner surface and the leg outer surface. The damper is provided with tight casing filled with a liquid and fitted on the rod. The damping elements are made in the form of split plates forming the petals, every petal featuring a different intrinsic frequency of elastic oscillations. Higher rigidity of coupling is provided. |
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Damper consists of working cylinder in which two-piece piston is placed. Piston parts are rigidly fixed on hollow and continuous rods, accordingly ring and continuous round section, and supplied by channels for pass on them a hydraulic fluid. Both parts of the piston are executed in the form of sleeves, supplied trimmed among themselves by the pair radially located partitions, and rigidly fixed on a hollow rod of ring section. In internal space of sleeves between their radial partitions the mobile lobe is placed. It rigidly connected to a rod of continuous round section. Throttle channels of various diameters are executed in the bottoms of sleeves. |
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Hydraulic damper consists of working cylinder in which two-piece piston is movably placed. Piston parts are rigidly fixed on hollow and continuous rods of ring and continuous round section, and supplied by channels for hydraulic fluid transiting. In the lower part of a continuous rod the channel is executed. This channel is linked, at least with two open coaxial holes located in its diametrical plane. Walls of a hollow rod lay in a horizontal plane of these holes, and are supplied with open slots varying on height of rods. Each of slots is directed on an external and internal generatrix of a hollow rod to each other by the ends having their least height. |
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Hydraulic suppressor of oscillations Suppressor of oscillations, mainly of rail crews, consists of working cylinder in which the piston is movably placed. Piston consists of two parts fixed on hollow and continuous rods of ring and round section. Piston parts are supplied on the surfaces by radial edges and protuberances with the channels bent under a right angle. Radial edges are movably placed in a vertical plane of a suppressor in corresponding slots. Slots are executed on external surfaces of each of piston parts. Edges are spring-bias concerning slots by springs of the compression having various magnitude of linear rigidity. The maximum course of edges is equal to height of the protuberances supplied with channels bent under a right angle. |
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Damper consists of the working cylinder in which the two-piece piston is movably placed. Piston parts are rigidly fixed on hollow and continuous rods of round section and supplied on the surfaces by radial edges and protuberances with bent under a right angle to a horizontal and vertical plane of the piston channels. Surfaces of the radial edges converted to horizontal sites of channels, are executed in the curvilinear shape. Symmetry direct-axes are located in the lower part of curvilinear surfaces of radial edges in a place of their adjunction to piston parts. Face surfaces of protuberances have the curvature that is adequate to curvilinear surfaces of edges. |
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Vehicle suspension pneumohydraulic spring Invention relates to pneumohydraulic springs with self-adjustable hydraulic resistance depending on amplitude and frequency of oscillations. Proposed pneumohydraulic spring of vehicle suspension contains cylinder with fitted-in piston and rod forming in cylinder piston and rod spaces, and hydraulic accumulator connected with cylinder space through valve. Valve is made in form of damping unit self-adjustable in amplitude and frequency of oscillations depending on pressure in spring and its change in time. Channel is made in valve body which accommodates spring-loaded step plunger forming with valve body, overplunger space, underplunger space and ring plunger space communicating with piston space and connected with space of hydraulic accumulator through main throttling channel with higher resistance and additional throttling channel with lower resistance, overlapped by larger step of plunger in extreme upper position. Spring installed in overplunger space engages with smaller step of plunger. Check valve installed in larger step of plunger connects ring plunger space with under plunger space. Outer groove made on lower part of plunger larger step communicates with ring plunger space through longitudinal throttling slot made on outer surface of plunger larger step, and with underplunger space through radial holes and filter installed in outer groove. Invention provides new damping system automatically self-adjustable in amplitude and oscillation frequency depending on pressure in spring and its changes in time and increase in damping force with rise of amplitude of oscillations over travel of suspension at any frequencies of road actions. |
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Implosion reusable water-turbine pressure generator Pressure generator comprises shutoff pipeline with reservoir fluid pressure inlet orifices, implosion chamber cylinder connected with shutoff pipeline by means of sub, piston connected with pump rod and working chamber. The working chamber has working cylinder with windows and pressure concentrators, shutoff valve with rod and sleeve, which communicates implosion chamber cylinder with working chamber. Working chamber has air-hydraulic damping means including hydraulic cylinder with expanded upper part and including piston. Air-hydraulic damping mans also has pneumatic cylinder with floating piston. Piston is made as a single whole with shutoff valve rod. Floating piston is at predetermined pressure and may cooperate with shutoff valve rod. Hydraulic and pneumatic cylinders are fixedly connected with each other. |
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Hydraulic damper comprises cylinder that receives interconnected flexible rod and piston. The piston is provided with the passages curved at the right angle and radial ribs. The flexible rod is hollow, and the piston is mounted on the flexible rod for permitting movement and is spring-loaded with respect to it by a compression spring. The joining pin is rigidly connected with the face of the piston. The end of the pin is provided with splains that cooperate with the answered splains made in the inner generatrix of the surface of the flexible rod. |
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Controlled hydraulic shock absorber Controlled hydraulic shock absorber comprises telescopic hydraulic two-tube shock absorber. The rod of the shock absorber is made of a hollow rod provided with the flange having a groove for roller thrust bearing and vertical slots from the other side. The hollow of the rod receives the hollow rod of by-pass valve for permitting vertical movement. The top section of the rod is provided with trapezium right thread, and the bottom section is provided with the stop for the spring of the valve. The driven pinion is screwed on the threaded part of the rod of the by-pass valve. The bottom of the driven pinion abuts against the roller thrust bearing that is mounted in the groove in the flange of the hollow rod. The second driven pinion is screwed on the threaded part of the valve rod. The top side of the pinion abuts against the roller thrust bearing. The third roller thrust bearing is interposed between the driven pinions. The driven pinions engage the driving gears mounted on the shaft of the electric motor. The control unit is connected with the electric motor and receives the signal from the pickups of suspension vibration and velocity pickup. |
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Reusable implosion hydraulic pressure generator Hydraulic generator comprises intake pipeline with orifices for well fluid reservoir pressure supply, implosion chamber cylinder, sub connecting intake pipeline with implosion chamber cylinder, piston connected with sucker rod, working chamber including working cylinder with windows and pressure concentrators, shutoff valve having rod and shutoff valve clutch, which connects implosion chamber cylinder with working chamber and cylindrical compression spring. Working chamber has hydraulic damping means. Damping means comprises cylinder with bypass orifices, piston made as a single whole with shutoff valve rod and spring-loaded with cylindrical compression spring, and collar having rigid spring-loaded stop. The stop may cooperate with shutoff valve rod to prevent critical cylindrical compression spring deformation. |
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Hydraulic vibration-isolating base Invention relates to hydraulic vibration-isolating bases used for damping vibrations created by operating power units of vehicles. Proposed vibration-isolating base has liquid-filled working and compensating chambers 1 and 8 limited by housing 7 with fitted-in dividing partition 6 provided with ring space 12 and restriction channels 4 communicating ring space 12 with said chambers 1, 8. Working chamber 1 is limited by support plate 3 with displacer 13 and elastic shell 2, and compensating chamber 8 by elastic diaphragm 9. Restriction channels 4 adjoin tangentially ring space 12 and working and compensating chambers 1, 8 Diffuser channels 5 are made in middle part of dividing partition 6 to communicate working and compensating chambers 1, 8. Peripheral part 8b of compensating chamber 8 is torous-shaped, tangentially adjoining diffuser channels 5. Dividing partition 6 is provided with axial channel 14 whose inner surface is made conical, with cut screw groove. Vertex of cone is pointed to side of support plate 3. Elastic element 15 is arranged between pan 11 and elastic diaphragm 9. Rigidity of elastic element is equal to rigidity of pneumatic spring formed by air space 10. |
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Invention relates to hydraulic shock absorber struts of vehicle suspensions, particularly, to devices providing their adjustment, stabilizing of characteristics of suspension shock absorber struts at ambient temperature fluctuations within +40°C and -40°C. Proposed hydraulic shock absorber contains hydraulic cylinder with working medium, piston and rod. Piston and rod spaces are connected by channels made in piston and additional channel made in rod. Capacity of additional channel is made adjustable depending on temperature of working medium by means of rotary bushing with hole and spring made of bimetal or material with memorized shape effect and rigidly connected by one end with rod and by other end with adjusting bushing. |
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Invention relates to devices for suppressing mechanical vibrations of rotary systems. Proposed damper has housing and main movable element installed in housing filled with damping liquid. Main movable element is made in form of solid of revolution, is furnished with additional damping element and is hinge-rested by lower part through support needle and step bearing onto elastic member. Alignment springs are secured in upper part of main movable element. Additional damping element is fitted with damping clearances in ring groove of housing, it encloses main movable element and is connected to main movable element through elastic hanger whose vertical arrangement depends on adjustment of damper in frequency. |
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Vehicle suspension pneumohydraulic spring Invention relates to pneumohydraulic springs with self-adjusted hydraulic resistance depending on amplitude and direction of oscillations. Proposed pneumohydraulic spring of vehicle suspension has cylinder with piston and rod forming piston and ring spaces in cylinder, and hydraulic accumulator connected with cylinder space through valve self-adjusted in amplitude and direction of oscillations. Valve is made in form of ring piston installed in cylinder for axial displacement along valve rod. One end of valve rod is connected with support secured on end face of cylinder. Ring piston travel limiter is installed on other end of rod, forming with cylinder a ring space of valve communicating with hydraulic accumulator through holes made in support and forming additional throttling channel and communicating with piston space through main throttling channel made in ring piston and through check valve installed at one of side of ring piston. Blind axial hole is made in piston with rod into which limiter gets at end of spring compression stroke, thus forming inner space of maximum vibration damper communicating with piston space. Invention reduces dynamic loads and increases free travel of spring rod at reduced damping without increasing overall dimensions, provides asymmetrical damping characteristics at compressing and rebound strokes and increased rigidity at end of compression stroke which simplified design, improves reliability and reduces heating of spring, provides smooth running on any road with small irregularities whose probable height does not exceed travel of spring rod corrected to wheel with reduced damping. |
Another patent 2551366.