Pistons and cylinders and pressure vessels in general and sealings (F16J)

ethod of non-contact cooling of pistons, stocks and cylinder of ulti-cylinder one-step engine with external combustion chamber by pump with electric drive // 2628825
FIELD: engine devices and pumps.SUBSTANCE: piston block in the composition of the pistons and rods is reciprocable along the fixed tube with clearance. When the temperature of the piston group is increased, the control system applies the voltage to the motor, rotating the coolant pump and the fan. The pump pumps the coolant through the duct inside of fixed pipe and radiator, which is blown by the fan. The control system monitors the temperature of the coolant and, when lowered, removes the voltage from the motor. The coolant circulation stops.EFFECT: optimum temperature of the engine piston group, reduction of cooling fluid losses during cooling of the engine piston groups.1 dwg

Decomposable and adjustable metallic packing and its production technique // 2627779
FIELD: mining engineering.SUBSTANCE: packing comprises a plymetal. A plymetal comprises a cellular nanomatrix which has a metalliferous material of a nanomatrix, a metallic matrix that is housed within the cellular nanomatrix, and a degradative agent housed within the metallic matrix. A degradative agent comprises: cobalt, copper, ferrum, nickel, wolframium or the combination that includes at least one of the above-mentioned. A packing comprises the first packing surface and the second packing surface that is placed oppositely to the first packing surface. A metalliferous material of a nanomatrix, a metallic matrix and a degradative agent are selected in such a way that the packing is designed to form a metal-to-metal seal in return for contractive force application. A packing can be made by dint of the metallic matrix, degradative agent and metalliferous material of a nanomatrix powder combination with the composition formation; of the consolidation of the composition with compacted composition formation; of the compacted composition agglomeration; and of the compression moulding of the sintered composition with the packing formation.EFFECT: exclusion of the elements or tools removal from the borehole.24 cl, 18 dwg
Support-pressing unit of face shaft seal // 2627758
FIELD: machine engineering.SUBSTANCE: assembly comprises a sleeve 1 made of elastomer with an axial through hole 2 for receiving a shaft therein. On the outer surfaces of the sleeve 1, two annular shrouds 3 and 4 are formed. At one end of the bushing 1, an annular recess 5 is provided in which a friction ring 6 is mounted. The assembly also comprises two shroud rings 7 and 8 made of metal and a compression spring 9 mounted between the shroud rings 7 and 8. The banding rings 7 and 8 are provided with gears 10 and 11, respectively. The base lines of these teeth are located on the facing ends of the shroud rings 7 and 8. Teeth 10 and 11 have the same height and are oriented parallel to the axis of the shroud rings 7 and 8 towards each other. The height of each tooth is less than the distance between the base lines of the gears 10 and 11 of the respective shroud rings 7 and 8. These gears provide a gear transmission of the rotational torque from the shroud ring 7 to the shroud ring 8 and from the shroud ring 8 to the shroud ring 7.EFFECT: increasing the contact area of the shaft with the element directly providing a seal over the shaft, and increase the rigidity of the transfer of the torque from the shaft to the movable friction ring.2 dwg

echanical means for fixing sealing gaskets of flange connection // 2626286
FIELD: construction.SUBSTANCE: mechanical means for fixing the sealing gaskets of a flange connection comprises a tab formed as a spring strip, the outer end of which is fixed inside the pin hole to form a concave arc resting on the cylindrical wall of the hole. The tab is provided with a separate retaining element in contact with the gasket. The retaining element may be in the form of a comb movably fixed to the inner end of the spring strip, or in the form of a shaped bend of the spring strip with a stamped "tongue", embracing the gasket end.EFFECT: reliable fixing of the gasket of any design on flanges of various size classes, ease of manufacturing and ease of installation.3 cl, 4 dwg

ethod for non-contact cooling of pistons, rods and cylinders of multi-cylinder single-stroke engine with external combustion chamber by exhaust energy // 2625070
FIELD: engines and pumps.SUBSTANCE: coolant outlet channel from the coolant pump with the exhaust energy drive is connected to all channels of the cooling pipes of the pistons and rods. Coolant outlet channel from the coolant pump with the exhaust energy drive is connected to all channels of the coolant inlet channels in the cavity between the cooling jackets and cylinders. And all the coolant outlets from the cooling tubes of the pistons and rods and all the coolant outlets from the cavities between the cooling jackets of the cylinders and the cylinders are connected to the inlet channel to the radiator.EFFECT: increased cooling efficiency of pistons and rods.1 dwg

ethod for cooling pistons, rods and cylinder of single-stroke engine with external combustion chamber by pump with electric drive // 2625069
FIELD: engines and pumps.SUBSTANCE: when the temperature of the piston group is increased, the control system energizes the electric engine of the coolant pump and fan drive. The pump pumps the liquid along two routes. The first route: the coolant pump, the axial coolant channel of the piston group, the radiator and the coolant pump. The second route: the coolant pump, the cavity between the engine cylinder and the engine cylinder jacket, the radiator blown by the fan. Heat from the piston group and the engine cylinder through the radiator is released into the atmosphere. The control system monitors the temperature of the coolant. When the temperature is lowered, the system switches off the coolant pump.EFFECT: increased cooling efficiency of pistons and rods.1 dwg

Device for protection of sealing rings // 2624938
FIELD: machine engineering.SUBSTANCE: device for the protection of sealing rings contains sealing and protective rings installed in the stem groove. In the additional stem groove made at a distance not less than the diameter of the radial cylinder bypass port from the stem groove on the side opposite to the direction of liquid flow, a protective C-type washer interacting with the inner surface of the cylinder with its outer end surface and a pressing ring are located. There is a gap equal to half the gap between the stem and the cylinder between the inner end surface of the protective C-type washer and the base of the additional groove. The lateral surface of the protective C-type washer contacting with the pressing ring is made conical.EFFECT: invention allows to protect the sealing rings from possible tearing out of the grooves and destruction by the liquid flow as they pass through the radial bypass port in the coupled part - the cylinder or the stem and improve the sealing reliability of the cylinder-stem pair.3 cl, 3 dwg

Cylinder-piston sealing apparatus // 2624932
FIELD: machine engineering.SUBSTANCE: sealing device comprises a cylinder, at least two disks, mounted in a cylinder on a guide sleeve fixed on one of the sealing surfaces of the quick-lock, spring elements arranged between the discs. Each disk is provided with sealing elements for fixed and mobile connections. The sleeve is provided with the abutments, with one disc is stationary and the other is mounted for axial movement between the stops. The resilient element is capable of cooperating with one of the stops and the disc. Fixed disk from the rear side of the device, opposite to the sealing element rolling compound, is provided a labyrinth sealing ring to form an annular cavity between the sealing element and the ring, the gasket stationary disc surface an annular groove communicating with the annular cavity, and the disk is formed at least one channel, having the ability to communicate the annular space with the source of washing liquid.EFFECT: invention improves the durability of the device.4 cl, 9 dwg

ethod for non-contact cooling of pistons and rods in one-step engine with external chamber of combustion of exhaust gases energy // 2624930
FIELD: engine devices and pumps.SUBSTANCE: piston block in the composition of the pistons and rods is reciprocable along the fixed tube with clearance. When the temperature of piston block rises, the control system moves exhaust gas valve to the open position. Exhaust gases are fed to the turbine, which drives the coolant pump and fan. Pump pumps the coolant through the duct inside of fixed pipe and radiator, which is blown by fan. When the temperature lowers, the system closes exhaust gas valve and coolant circulation stops.EFFECT: elimination of coolant losses during cooling of piston blocks.1 dwg

Gas-tight joint seal between cylinder liner and cover of internal combustion engine // 2624782
FIELD: engines and pumps.SUBSTANCE: gas-tight joint seal of the internal combustion engine comprises an annular sealing gasket (3) of a rectangular cross section made of steel with a hardness lower than the hardness of the material of the cylinder liner and cover and mounted between the sealing surfaces of the cylinder liner (2) and the cylinder cover (4). On the sealing surfaces of the cylinder liner (2) and cover (4) protruding denticles of triangular cross-section are formed, which are pressed into the gas-tight joint gasket body, when the cylinder liner (2) and the cylinder cover (4) are fastened to the cylinders' block by studs. On the working surfaces of the gasket, at the contact points with the denticles, annular grooves of a rectangular cross-section are made with a width Ba, equal to 1.2 times of the denticle base width Bd and the depth Ha, equal to 0.25…0.35 of the denticle height Hd.EFFECT: ensuring the guaranteed closure of the gas-tight joint across the entire area of the gasket.2 dwg

ethod for non-contact cooling of pistons, rods and cylinders in one-step engine with external chamber of combustion of exhaust gases energy // 2624686
FIELD: engine devices and pumps.SUBSTANCE: when the temperature of pistons, rods and cylinder increases, the control system moves exhaust gas valve to the open position, at which part of exhaust gases enters the turbine and, after having been exhausted in it, is discharged into the atmosphere. Turbine rotates the coolant pump and the fan. Pump pumps the coolant through cooling pipe channel of pistons and rods, radiator, and also through the cavity between the cylinder and the jacket. Radiator is blown by atmospheric air.EFFECT: increased cooling efficiency of pistons, rods and cylinder.1 dwg

ethod of non-contact cooling of pistons and strokes in multi-cylinder one-step engine with external combustion chamber by energy of air compressed in pistons compressor cavities // 2624685
FIELD: engine devices and pumps.SUBSTANCE: engine piston block is reciprocable along fixed tube with clearance. When the temperature of piston block in the composition of the pistons and rods is increased, control system moves the supply valve of air compressed in pistons compressor cavities to the open position. A part of compressed air flows to the turbine, which drives the coolant pump and fan. Pump pumps the coolant through the duct inside of fixed pipe and radiator, which is blown by fan. Control system monitors the temperature of coolant and, when it falls, closes the valve in compressor cavities. The coolant circulation stops.EFFECT: reducing the loss of coolant.1 dwg

Valve device from elastic material // 2624389
FIELD: machine engineering.SUBSTANCE: valve device made of elastic material with a through hole for working fluid flow, pressed by the working fluid pressure to the sealing surface, with geometric characteristics and elastic properties of the material, providing preliminary contact pressure on the sealing surface. The valve arrangement is made in the form of a cylindrical sealing ring made of an elastic material of rectangular cross-section, whose ends are axially symmetrically connected along the lateral surface of the ring with circular cross-section through the ring bridges. A hole for the flow of liquid is made along the normal to the surface of the rectangular ring.EFFECT: increasing the reliability of sealing the test object using the self-sealing effect, ensure installation with minimal time and reduce the cost of manufacturing a valve device.2 cl, 5 dwg

ethod of cooling pistons, rodss and cylinders of multi-cylinder one-stroke engine with external combustion chamber using energy of air compressed in compressor cavities of pistons // 2624156
FIELD: engine devices and pumps.SUBSTANCE: when the temperature of the pistons, rods and cylinder of the engine rises, the control system moves the air supply valve to the open position. The air, compressed in the compressor cavities, enters the turbine and, having worked in it, is released into the atmosphere. The turbine rotates the coolant pump and the fan. The control system monitors the temperature of the coolant and, when it drops, closes the air supply valve. The coolant circulation stops and the coolant temperature rises. Thermostats control the temperature of the pistons, rods and cylinder, respectively.EFFECT: increased efficiency of cooling pistons, rods and cylinders of a one-stroke engine with an external combustion chamber.1 dwg

Device for sealing low-pressure steam turbine // 2624086
FIELD: machine engineering.SUBSTANCE: device for vacuum sealing is installed between the opposite and coplanar parts of an outlet nozzle (2) of the low-pressure steam turbine and a round partition (16), which forms part of the outlet channel assembly (10B) of the steam turbine module (1). The sealing device forms a vacuum sealing between the inner part and the outer part of the outlet nozzle and comprises an elastic gasket (18) in the form of an annular diaphragm. The diaphragm has a radially inner peripheral portion (30) sealed with the partition (16), a radially outer circumferential portion (32) sealed with the outlet nozzle (2); and a radially intermediate elastic portion (34). The sealing is provided by radially inner and outer pressure flanges (36, 38) adapted to compress the internal and outer circumferential portions (30, 32) of the gasket (18) to the partition (16) and to the outlet nozzle (2), respectively. The pressure flanges comprise upper and lower halves, and the upper part of the gasket (18) is sealed with the upper portions of the outlet nozzle (2AU) and with the partitions (16U) by means of a flange system (36, 38) and counter flange system (40, 42), wherein the counter flanges are detachably-fixed to the outer surfaces of the outlet nozzle and the partition.EFFECT: possibility of adjusting the position of the turbine rotor shaft without the need for access inside the closed structure formed by the turbine module and without compromising the integrity of the vacuum sealing.6 cl, 4 dwg

Ring bracket sealing gasket // 2623339
FIELD: machine engineering.SUBSTANCE: invention relates to a gasket comprising a body formed of two portions (1, 2) pressed into one another with precise and airtight fitting in position on the boundary surfaces (15, 6b), and a composite structure comprising inside the shell is preferably flexible and a resilient core (24) and winding (20) of the bristles of the brush. This structure is situated directly opposite the inner sides (9, 10) located opposite each other in the housing, which compress it and have an arc shape with a radius of curvature slightly larger than that.EFFECT: composite structure is firmly, but without a voltage, retained in exact position.15 cl 3 dwg

System of brush seals // 2623322
FIELD: machine engineering.SUBSTANCE: brush seal (9) comprises a housing (4) and a plurality of brushes fixed to the housing (4) of the bristles of the brush (5). The free ends of the bristles (5) are supported with respect to the sealing surface (6) on the rotor (2). On the rotor (2) are provided in the radial direction in front of and behind the sealing surface (6) radially running around the circle relief grooves, so that in the region of the sealing surfaces (6) formed by a jumper, which can locally deform, in particular when tripping casing brush seal surface , so that danger may be minimized, and curvature of the rotor thus threatening attack oscillations along a helical path.EFFECT: invention relates to a steam turbine system with a brush seal.3 cl, 2 dwg
ethod for cooling pistons, strocks and cylinder of one-step engine with external combustion chamber by pump with electric drive // 2623027
FIELD: engines and pumps.SUBSTANCE: when the temperature of the piston group is increased, the control system applies a voltage to the pump motor that drives the coolant pump and the fan. The coolant pump pumps the coolant along two routes. The first: coolant pump, axial flow channel of the coolant of the piston group, radiator and again coolant pump. The second: coolant pump, cavity between the engine cylinder and the engine cylinder jacket, radiator, which is blown by the fan. As a result, the heat from the piston group and the engine cylinder through the radiator is released into the atmosphere. The control system for the coolant temperature sensor monitors the coolant temperature. When the temperature of the coolant, pistons, srtokes and the engine cylinder decreases, the control system switches off the coolant pump. The coolant circulation stops and the temperature of the coolant, pistons, strokes and cylinder of the engine rises.EFFECT: increased cooling efficiency of pistons and strokes.1 dwg

ethod of non-contact cooling of pistons, strocks and cylinder of ulti-cylinder one-step engine with external combustion chamber by pump with electric drive // 2623025
FIELD: engine devices and pumps.SUBSTANCE: coolant outlet from the coolant pump is electrically connected to all channels of the cooling pipes of the pistons and strokes, as well as to all coolant inlet channels in the cavity between the cooling jackets and the cylinders. And all the channels output coolant from the cooling pipes of the pistons and strokes and all output channels cavities of coolant between cylinder and cooling jackets-cylinder connected with the channel entrance to the radiator.EFFECT: increased cooling efficiency of pistons and strokes.1 dwg

ethod of non-contact cooling of pistons, strokes and cylinders of multi-cylinder one-step engine with external chamber of combustion of exhaust gases energy // 2623024
FIELD: engine devices and pumps.SUBSTANCE: coolant outlet from the coolant pump is connected to the channels of the cooling pipes of the pistons and strokes and the coolant inlet channels in the cavity between the cooling jackets and the cylinders of all the engine cylinders. The coolant outlets from the cooling tubes of the pistons, strokes and cylinders of all engines and the outlet channels from the cavities between the engine cylinders and the cooling jackets of the engine cylinders of all the engine cylinders are connected by channel 40 to the radiator inlet channel. The coolant pump is connected with the turbine driven by exhaust gases.EFFECT: increased cooling efficiency of pistons and strokes.1 dwg

Seal between stationary turbine particles // 2622577
FIELD: machine engineering.SUBSTANCE: seal consists of at least one intermediate element (6), which contains its opposite ends in terminal elements (7, 8). These terminal elements (7, 8) are located in respective slots (4, 5) of the fixed parts (2, 3) and adjacent to the inner surfaces of the grooves (4, 5). Mentioned intermediate element (6) consists of at least two parts (6', 6") And the portions (6', 6"). Of the intermediate member is rotatably connected to each other by a hinge (9). Hinge (9) is a circular ring in cross-section formed by at least two cylindrical members arranged coaxially and adapted to move relative to each other, the inner surface of the hinge (9) is wrapped in woven metal material (10).EFFECT: higher flexibility due to the rotation to compensate for greater relative movement of turbine parts, and reduced wear and aging at the same time ensuring the high-quality seal.6 cl, 6 dwg

System with gas seal // 2622445
FIELD: machine building.SUBSTANCE: invention relates to a system with a gas seal (GS), a stator (S) and extending along the axis (X) the rotor (R) for sealing a gap seal (SGP) between the rotor (R) and the stator (S), comprising a rotating sealing ring (RSR) of the rotor and the stationary seal ring (SSR) of the stator, comprising a rotatable fastening element (FE), which fixes the sealing ring (RSR) of the rotor on the rotor (R) in the axial direction. Fixing element (FE) passes through at least part of the circumference in the circumferential direction (CD), the fastening element (FE) is arranged at least partly held in the axial and the circumferential direction (CD) gap (GP) with a radial height (GH) the gap between the rotor (R) and the rotary seal ring (RSR) rotor. The gap (GP) by the rotary seal ring (RSR) of the rotor is set by the surface (SRS) of the sealing ring and the rotor side (R) surface (RS) of the rotor, wherein the surface (SRS) of the sealing ring has a first recess (SRD), and the surface (RS) second rotor recess (RSD). Fixing element (FE) is located partially in the first recess (SRD) and partially in the second recess (RSD) such that the axial relative movement beyond a predetermined location area between the rotating sealing ring (RSR) of the rotor and the rotor (R) is only possible when the radial deformation of the fastening element (FE).EFFECT: invention improves reliability of the seal.11 cl, 2 dwg

ethod of non-contact cooling of pistons, strokes and cylinders of multi-cylinder one-step engine with external chamber of combustion of compression energy in compressor pistons of piston air // 2622222
FIELD: engines and pumps.SUBSTANCE: coolant outflow channel from the coolant pump, driven by the energy of the air pistons compressed in the compressor cavities, is connected to all the channels of the cooling pipes of the pistons and rods. Channel output coolant pump pumping coolant is connected with all the coolant entry channels cavities between cooling jackets. And all the channels output coolant from the cooling pipes of the pistons and rods and all output channels cavities of coolant between cylinder and cooling jackets-cylinder connected with the channel entrance to the radiator.EFFECT: increasing the cooling efficiency of the pistons and rods.1 dwg

Rod sealing // 2621922
FIELD: machine engineering.SUBSTANCE: stem seal contains elastic elements mounted on the piston rod. To compress the elastic elements, two directly interacting movable crimping rings are provided. One ring is installed on the side of the sealed volume, and the second crimping ring is screwed into the body of the device and presses against the conical surface of the resilient element facing it, compressing the elastic elements in a closed space between the conical surfaces of the crimp rings. Elastic elements due to the presence of a guaranteed gap are uniformly pressed around the rod and thus seal the joint. To increase the reliability of sealing on the contacting surfaces of elastic elements, a groove is provided, made in the form of cylindrical grooves, in which elastic supports are installed.EFFECT: creation of a seal rod, operating at negative and positive operating temperatures, its use in designs with different strokes and forces of rod movement.3 cl, 1 dwg

Piston compressor, sealed with high pressure seal and method // 2621847
FIELD: machine engineering.SUBSTANCE: hermetic seal at elevated pressure (38) to the piston rod (24) of the piston compressor (10) includes a housing (46) having a through hole (48) for the piston rod. The housing contains the chamber (52), which is aligned with a through hole (48) and the axial length (54) of which is at least equal to the course of the piston rod (24). It comprises a sealing ring between the first sealing element and second sealing element and the gas passage extending from the housing through a first sealing element in a sealing ring. The passage has an outlet for the gas, formed by at least one radial bore in the sealing ring. The two-chamber assembly for this compressor is described as well as the compressor itself.EFFECT: enhanced serviceability, and lowered costs.17 cl, 11 dwg

System (versions) and method for shaft sealing // 2621425
FIELD: power industry.SUBSTANCE: system and method for turbo installation shaft sealing comprising turbine section 110 and a downstream section are provided. The shaft seal system 100 includes at least one seal 180 located about the first and second shaft ends 172 and 174 and comprising a hydrodynamic non-contact seal with a carbon segmented O-ring seal. The system 100 includes connecting line 200 for conducting steam from the first section 110 to the first stage located downstream of the turbine section. The first stage has operating pressure below the pressure in the section 110 so that, during operation, the steam is drawn through line 200 from the first annulus located between main seal 180 and the steam seal at the first shaft end 172 and the second annulus space between main seal 181 and steam seal at the second end 174 of the shaft to the first stage. Both shaft ends 172 and 174 are at a pressure greater than atmospheric pressure.EFFECT: provision of a shaft seal system that does not require sealing steam condensers application.18 cl, 5 dwg

Bayonet end lock // 2621127
FIELD: construction.SUBSTANCE: lock is designed for locking the lids of vessels, apparatus, end and blind portions of pipelines working under pressure. The lock includes a composite hollow body consisting of the stationary and the rotating parts connected by a multiple-flight rectangular thread, a cover fixed on a hinged lever and having the ability to be rotated on the bearing unit axis perpendicular to the cover plane, as well as the ability to be hinged together with said lever by means of the bearing unit on the bracket mounted on the housing, a locking device made in the form of bayonet connection. On the cover, projections are made, covered by grooves formed on the rotating part of the body. A toothed sector is fixed on the lock cover, divided by an abutment into two sections interacting with a pinion key mounted in series on fingers disposed on the rotating housing part, providing a preliminary and complete mutual rotation of the cover and the rotating housing part. At the end of the pre-rotation section, the cover has the possibility of axial movement to the height of the ledges formed on the cover projections. The pitch size and the number of threads are selected so that while closing the bayonet connection, when the projection of the rotating housing part completely overlaps the cover projection, the axial movement of the rotating body part takes place, sufficient to compress the seal disposed in the groove on the sealing surface of the stationary root part of the housing and to achieve airtight connection of the fixed root part of the housing and the cover. The bayonet projections of the cover and the rotating housing part have a shape providing the disposition of their contact surfaces in the same plane perpendicular to the rotation axis of the rotating housing part. On the fixed housing part, a locking bar is fixed, on which a safety unit is installed, consisting of a handle with an eccentric, connected by means of a thrust with a stopper, and by means of a shaft connected to the shut-off element of the exhaust cock connected by a branch pipe with a cavity under the lock cover. The stopper has the ability to enter and exit the locking groove on the rotating housing part, on which angular stops are also made to prevent the rotating part of the housing from turning away from its stationary part. On the fixed root part of the housing, internal stops are made to prevent the cover from cranking relative to the fixed root part of the housing.EFFECT: increasing the reliability and airtightness of the lock.5 dwg

Spherical annular sealing element and its manufacturing method // 2621110
FIELD: machine engineering.SUBSTANCE: invention comprises a spherical annular base defined by a cylindrical inner surface, a partially convex spherical surface and annular ends of a large and small diameter of a partially convex spherical surface, and an outer layer integrally formed on a partially convex spherical surface of a spherical annular base. The spherical annular base comprises a reinforcing element of a metal wire mesh and a heat-resistant material comprising porous graphite that fills the cells of the metal wire mesh of the reinforcing element and is pressed so as to form a single unit in the mixed form with the reinforcing element. The reinforcing element, the heat-resistant material and the solid lubricant form one unit on the outer layer.EFFECT: invention allows to weaken auto-oscillations and to exclude the occurrence of anomalous noise.26 cl, 20 dwg, 9 tbl, 21 ex

echanical seal of rotating shaft with hydraulic gate // 2620621
FIELD: machine engineering.SUBSTANCE: mechanical seal of the rotating shaft with hydraulic gate contains a stable and axial fastening of sealing rings 4 and 3 partly with profiled surface 8 axial rolling o-ring 3 wedge converts segments 9 and radial grooves 10 sealing fluid for logon. The profiled part 8 working surface axial rolling ring 3, relative to its nonprofiled part 11 performed with ring groove 12 depth equal to the thickness of the hydrodynamic layer sealing fluid emerging from wedge 9 segments into the gap between working surfaces of axial-movable and stationary seal ring 3 and 4. To increase the heat circulating liquid slide radial grooves 10 3 ring cut through the entire thickness of the 3 rings, as well as unhealthy surface 3 rings done with Groove 13, which reduces the thickness of the profiled part of ring 3.EFFECT: improvement of reliability of mechanical seal and increase its resource with minimal leakage through seal sealing fluid through the provision of unloading the contacting surfaces of the sealing rings from the axial efforts.3 cl, 8 dwg
Tape seal in particular for trucks wheel bearing layout // 2619660
FIELD: transport.SUBSTANCE: invention relates to a cassette seal, in particular for the wheel bearing layout the truck. Cassette seal includes the first and second ring (3, 4), which are approximately L-shaped cross-section, wherein the axial portions (3a, 4b), and the radial portions (3b, 4a) of the first and second rings (3, 4) are oriented approximately in parallel to each other, so that the interior space (6) is formed, wherein the sealing device arranged in the first ring (5) is given in the direction of the second ring (4) and between the radial portion (3b) of the first ring (3) and an axial portion ( 4b) of the second ring (4) there is a gap (9). On the side the axial portion side (4b) of the second ring (3) facing away from the inner space (6) there is a fixedly disposed additional element (22), which rises in the direction of the radial section (3b) of the first ring (3) over the axial portion (4b) of the second ring (4) with a projection (16). The projection (16) of the additional element (22), rising over the axial portion (4b) of the second ring (4) has a downward bevel (17) in direction of the second ring (4), at that, the bevel (17) with the radial portion (3b) of the first ring (3) forms a gap (9) and the projection (16) is formed mainly without edges. The invention provides higher sealing reliability.EFFECT: invention extends the components product range for the truck wheel bearing seal.14 cl, 8 dwg

Locks // 2619006
FIELD: heating, ventilation.SUBSTANCE: invention relates to elastomeric or polymeric seal assembly which comprises an annular elastomeric or polymeric sealing member. The inner peripheral surface of the sealing member is sealingly connected with the first component. The sealing element abuts upon the annular radial surface of the second component, and the outer peripheral surface of the sealing member is sealingly connected with the inner peripheral surface of the second component. A ventilation aperture provided in the inner peripheral surface of the second component is adjacent to the radial surface to ventilate the space between the outer peripheral surface of the sealing member and the inner peripheral surface of the second component. Wherein the entry into the ventilation aperture is determined by an annular groove in the inner peripheral surface of the second component, the annular element with spiral winding is provided in the annular groove to prevent the displacement of the sealing member into the ventilation aperture. The element with spiral winding is formed from a strip of the material of the elongate portion, the adjacent material windings being spaced apart.EFFECT: invention improves the connection reliability of the ventilation design.21 cl, 6 dwg

Roll neck seal of roll mill stand // 2618991
FIELD: machine engineering.SUBSTANCE: invention relates to the roll neck seals of the roll mill stand. The roll neck sealing device of the roll mill stand contains the first oil ring (54), disposed along the circle of the roll (40), having the first axial surface, retaining plate (30), surrounding the roll (40) and having the second axial surface in the opposite referred position relative to the first axial surface. The first seal (64), located along the circle of the roll (40) and arranged between mentioned the first axial surface of the oil ring (54), and opposite it the second axial surface of the retaining plate (30). At that the seal (64) has the first surface of axial sealing in contact with the first axial surface of the oil ring (54) and the second axial surface. The seal is provided with a cavity, located between the second axial surface of the first seal (64) and one of the axial surfaces of the oil ring (54), connecting with the seal (64) and the source of pressurized fluid medium(28), for providing the displacement of the specified first surface of the axial seal of the first seal (64) to the contact with specified first axial surface of the oil ring (54).EFFECT: invention allows to extend the service life of the roll neck seal by reducing the frequency of seal ring replacing.18 cl, 7 dwg

Device for closing the cap of the vessel working under pressure // 2618631
FIELD: packaging industry.SUBSTANCE: means for opening and closing the cover is designed as a mechanism for lifting and lowering the lid, the entire internal contact surface which is flat. Locking caps make three symmetrically arranged arcuate sectors T-bar - top and a pair of side connected to the top hinge. The lid is hinged to the upper rougher sector and has a small possibility of vertical movement with respect thereto in the reduction and separation of tows lateral sectors using removable drive mechanism. Top rope sector is provided with eyebolts to interact with the mechanism of raising and lowering the cover. The lower end of the side ski sectors are provided with brackets which have holes for tightening fasteners and fixing rope sectors in the working position. Drive information and breeding sectors is provided with a side platter and actuator attached to the brackets of the side ski sectors. The device is provided with a flat metal diaphragm in which a sealing ring is located.EFFECT: prevent the possibility of loosening rope sectors in the vessel, increasing reliability.7 cl, 14 dwg

Sealing elements, preferably sealing rings // 2617263
FIELD: chemistry.SUBSTANCE: invention relates to a sealing element (preferably a sealing ring) which is adapted to seal between two parts (B1, B2) of the structural element and in order to shrink by two parts (B1, B2) of the structural element in the groove (N), which is located on one of two parts (B1, B2) of the structural element and has an open part (NTS) and the bottom part (NG) of the groove. The sealing component includes a profile (P) with profile (DH) of different heights in the uncompressed state and at least two outer surfaces (10, 20). Profile (P) is made with the purpose that it deforms in the compressed state in such a way that at least one of its lateral areas (SA1, SA2) extends into the open part (NTS) of the groove and preferably thereby partially covers the open part (NTS) of the groove.EFFECT: document describes the structure of the sealing element.23 cl, 7 dwg

Elastic self-tightening metal gasket // 2617220
FIELD: machine engineering.SUBSTANCE: elastic self-tightening metal gasket has two symmetrical seal AC profile runners, section located between the solid elastic jumper with holes for supply to the internal cavity of the gaskets working environment, the pressure of which creates the effect of self-tightening. The jumper has an arched shape with a thickness less than symblo sealing its affiliation with bulge towards the outer or the inner diameter. The jumper can be performed with the slits freeform evenly spaced along the entire height of the circumference.EFFECT: getting higher value of specific pressure on the sealing surfaces, which improves the ability of the sealing gaskets.5 cl, dwg 1

Labyrinth seal of spiral and mixed spiral cylindrical configuration with high damping capacity // 2616428
FIELD: engines and pumps.SUBSTANCE: invention relates to a device for turbomachine high-pressure area isolation from the low pressure area. The turbomachine includes one or more stator parts and one or more rotor parts. The device comprises labyrinth seal 502 with the first set of grooves 504 and the second set of grooves 506, wherein the first set of grooves is located in a helical configuration, and the second set of grooves is located in a cylindrical configuration, with seal 502 located between at least one of the said parts of the turbomachine rotor and at least one of the said parts of the turbomachine stator between the high pressure area and low pressure area of the turbomachine, and the helical configuration has the helix angle, constituting 10° or less, preferably 0.5° to 5°.EFFECT: effect of turbomachine stabilization is obtained, and leakage caused by the second set of grooves is negligible.14 cl, 12 dwg

ethod for sealing dismountable connection and airtight dismountable connection for its implementation // 2615886
FIELD: construction.SUBSTANCE: in method for sealing a dismountable connection, comprising installing the sealing element in the form of a metal ring between the dismountable connection parts, followed by force application thereto until its deformation, the metal ring is mounted into the annular seating groove, which is previously performed on one part of the dismountable connection, and the other part is placed into the metal ring, wherein forming the force of at least 100 N / m, which is applied to its free butt, and compressing around the perimeter the free butt of the dismountable connection part placed in the metal ring is carried out simultaneously. In the airtight dismountable connection comprising the annular sealing element installed in the joint cavity in the annular groove made in one of the dismountable connection parts. The other part is placed in the annular sealing element, the annular sealing element is made of lead and coated with a protective copper layer. Moreover, the dismountable connection part placed in the metal ring is mounted partially entering the annular groove of the other connection part, additionally comprises a loading device of the sealing metal ring, formed with a cylindrical surface and a circular flange, in which openings for compressing and tightening elements are formed; for the latters, response openings on one of the dismountable connection parts are made; the device comprises a recess for forming the annular pressing surface coaxial to the sealing metal ring, whose size corresponds to the size of the sealing metal ring butt, wherein the pressing surface is formed with a projection, in the longitudional section representing an isosceles triangle facing its vertex to the butt middle.EFFECT: invention allows the possibility of its use within the housing and for sealing optical elements, the airtight dismountable connection improves the airtight connection reliability due to preserving the properties of the annular sealing element during thermal cycling.2 cl, 1 dwg

Conrod-piston unit // 2615877
FIELD: machine engineering.SUBSTANCE: conrod-piston unit, contains piston and rod. At the end of the piston are made of spherical surfaces of one common center. The piston is supplied from one side of the pillar, covering the spherical surface of the piston, and the other is equipped with a lid that is installed in the spherical surface of the piston. The reliance of the piston is rigidly linked to the rod. In the piston, anvil and cover axial hole is made, into which the set screw that secures the piston cover and support with the necessary to ensure the mobility of the preload. In stock, radial hole is made, into which you have inserted your retainer screws.EFFECT: invention helps to improve manufacturability of conrod-piston unit and increase its reliability, reduce the amount of metal constructions by maximizing contact piston with support.5 cl, 4dwg, 3 dwg
ultipoint sealing device of auxiliary high-pressure water jet for cutting mechanism used in mining equipment // 2615546
FIELD: mining.SUBSTANCE: multipoint sealing device of the auxiliary high-pressure water jet of the cutting mechanism comprises a water conducting housing and a water conveyance hose, connected in series between the cutting shaft and the cutting-providing tank of the cutting mechanism used in mining equipment. The input water intake channel is configured radially across the water conveyance housing, the water-conducting hose and the cutting shaft, and respectively communicates with the inlet water opening for the cutting-providing tank and the main flow channel of the cutting shaft. Two sides of the input water-intake channel are respectively provided with the first sealing O-shaped ring, the gear combined sealing, and the second sealing O-shaped ring. The water-conductive housing is made with the drain gutter, and the cutting-providing tank is made with the water outflow channel communicating with the drainage gutter.EFFECT: sealing with long service life and increasing the efficiency of the auxiliary cutting with the high-pressure water jet.3 cl, 3 dwg
Compressor of axial turbine machine and axial turbine machine // 2615300
FIELD: machine building.SUBSTANCE: invention relates to an axial compressor of the turbine engine, comprising: a stator with an annular near the blades (32) of the stator extending in the radial direction, an inner hub (36) located on the inner ends of the blades (32) of the stator, a rear brush seal (40) located on the inner hub (36) which comprises a rotation profile passing in a substantially axial direction. The brush seal comprises bristles which pass in a substantially axial direction. The compressor also comprises a rotor with an annular sealing surface (42) having generally a cylindrical or truncated cone located on the rear side of the blades (32) of the stator and which cooperates with a brush seal (40) to provide a seal between the inner hub (36) and the rotor. The annular surface (42) encircles the brush seal (40), so that the pressure at the outlet of the brush seal (40) tends to push the seal against the annular surface (42).EFFECT: invention provides increased efficiency and service life of the brush seal, increasing the compactness of the compressor.15 cl, 4 dwg

Seal for rotating shaft of propeller ship // 2615265
FIELD: transportation.SUBSTANCE: shaft seal device ship propulsor between the outside water and filled with lubricant space includes multiple seal, that from the side of the outer water has at least one outward sealing ring, and from the filled lubricant space by at least one inwardly directed sealing ring. Between each two adjacent O-rings, the seal chamber is made. The first chamber is filled with the outer seal water. The second seal chamber along the feed line is fed with a gaseous medium such as compressed air, and which is controlled by the drain channel. The third sealing chamber is filled with oil and is provided with a supply from the tank through the supply line. In the supply line (43) of the oil-filled chamber (23), the sealing between the tank (8) and the chamber (23) is a circulation pump seals. Supply line (43), connected to the lower region of the chamber (23), seals the chamber and an upper region (23) has a discharge line seals (44) to the tank (8).EFFECT: durability of the system.19 cl, 2 dwg

Combination seal of turbomachine // 2614910
FIELD: engines and pumps.SUBSTANCE: turbomachine rotor seal comprises a graphite ring segments mounted in the housing and seals Compressed garter spring, an axial spring mounted in the seal housing cover fixed to the seal housing via a releasable connection. The seal comprises a contact sleeve mounted on the shaft and fixed to the latter in the axial and circumferential directions on the outer diameter of which establishes said graphite ring in segments, whole graphite ring mounted in the seal housing between the graphite ring in segments and cover thin-walled curved in cross-section of the elastic elements. The axial spring is installed between the neighboring ends of the seal housing and the graphite ring in segments, moreover, on the outer diameter of contact sleeve an annular groove, across which there are elastic elements mentioned circumferentially, each of which is capable of contacting a portion of its outer surface to the inner surface solid graphite rings and rigidly fixed to the inner surface of the annular groove.EFFECT: invention provides efficiency to the working modes of the gas turbine engine in the absence of air pressure differential on the seal while reducing air leakages of sealing modes.2 dwg

Turbomachine rotor radial end seal // 2614904
FIELD: engines and pumps.SUBSTANCE: proposed seal comprises two resilient graphite rings with crosswise cutout fitted between two slip rings. The seal additionally comprises a continuous graphite ring fitted inside the resilient graphite rings with crosswise cutuot with a gap and making contact with the slip rings at the but ends, two ring elements with adjusting ring between them fitted and fixed in the axial direction at the turbomachine rotor trunnion. There is a gap between the inner surfaces of resilient graphite rings with a crosswise cutout, continuous graphite ring and the outer surfaces of the ring elements with adjusting ring, two conical annular membrane are fitted in the gap between the ring element and the corresponding slip ring and connected to them by means of permanent connections. Cone bases of mentioned conical annular membranes are positioned on the low-pressure cavity side. Resilient graphite rings with crosswise cutout are fitted with an angular displacement relative to each other with the possibility of overlap of their crosswise gaps and fixed against rotation relative to each other, there is an annular groove at the joint of the resilient graphite rings with crosswise cutout on the side of their inner surface, and there is an O-ring fitted in the annular groove.EFFECT: reduction of friction and wearing of sealing elements at lower turbomachine operation modes while maintaining absolute tightness of the seal in all turbomachine operation modes and improvement of its reliability.1 dwg

System of front sealing, which has sliding surface of different rigidity // 2614556
FIELD: mechanical engineering.SUBSTANCE: invention relates to a system of the front seal, which comprises: a rotating ring (2) of the front seal, having a first sliding surface and the stationary ring (3) of the front seal, having a second sliding surface, which delimiters a sealing gap 4 between themselves. The first and the second sliding surface have different rigidness. The harder sliding surface has a diamond coating (20) and a softer sliding surface is made of carbon composite material. The average initial roughness Ra1 of the diamond coating 20 is less than the average initial roughness Ra2 of the sliding surfaces of the carbon composite material.EFFECT: invention improves the reliability of the face seal system.15 cl, 3 dwg

echanical seal // 2614550
FIELD: machine engineering.SUBSTANCE: mechanical seal parts with the outer cylindrical surface comprises a female sealable shaft housing which are installed paired bushings lapped each other in the axial direction along the inclined end surfaces, the angle of inclination which is greater than the angle of friction, and preloaded against the sealing surface in opposite directions while deployed one pair relative to the other at an angle of 180°/n, where n - the number of pairs.EFFECT: invention simplifies the design and improves the tightness of the mechanical seal.2 cl, 3 dwg

Piston ring with groove, which has periodically varying forms // 2614313
FIELD: machine building.SUBSTANCE: groove is located between two portions of the working surface in relation to the cross section of the piston ring. Two working surface portion are spaced apart, being substantially spherically convex, and each has the highest point. The groove has a periodically varying depth and periodically changing the width and depth of the course number of periods changes and changes in the number of stroke width the same periods.EFFECT: invention provides the sufficient lubrication conditions due to a more uniform distribution in the circumferential direction of the lubricating oil supplied in the groove.12 cl, 11 dwg

ethod of large diameter thermoplastic sealants moulding // 2614275
FIELD: machine building.SUBSTANCE: group of inventions relates to large diameter sealing rings producing method (versions). Method of sealing ring molding includes jointly extruded longitudinal layer of first polymer and longitudinal layer of second polymer, having higher quality and strength weld joint. Bending thermoplastic rod into round shape during heating and connecting rod heated ends by weld joint.EFFECT: technical result, enabled by using group of inventions, consists in fact, that to increase weld joint strength as a whole, including first polymer layer weld joint.15 cl, 10 dwg

Sealing annular gap between separator and piston preferably for control valve of axial type (versions) // 2614259
FIELD: machine engineering.SUBSTANCE: performing a cuff 3 with an annular groove 17 and attaching it to the wedge 14 of the annular insert 1 are held in the process with the possibility of the wedge reciprocating movement 14, the radial movement of the sealing cuff 3 jaw 2 is provided within the annular groove 17.EFFECT: reducing the probability of damaging the cuff, when switching the valve, and minimizing the working medium leakage at high and low pressures, reducing the mass and dimensions of the control valve, increasing the speed of its switching.35 cl, 38 dwg

Piston ring with chromium and solid particles layer to protect from wear and corrsion resistant side face // 2613819
FIELD: machine engineering.SUBSTANCE: piston ring contains a major part of the chromium steel with more than 10% by the chromium weight, having the inner peripheral surface, the first side surface, the second side surface and the outer peripheral surface. At the first side surface it contains the nitrided diffusion layer with thickness of 5-300 micron, the nitrided bond layer with thickness of 0.5-15 microns located directly above it, and the oxide layer with thickness of 0.05-3 microns located directly above it. On the second side surface it contains a nitrided diffusion layer. On the outer peripheral surface it contains the nitrided diffusion layer and the chromium and solid particles layer located above it, wherein the solid particles volume content is 0.1-30% relatively to the total volume of the indicated layer. The method of the indicated piston ring manufacture, wherein the metal major part of the piston ring, having the inner peripheral surface, the first side surface, the second side surface and the outer peripheral surface, is subjected to a combined process of nitration-oxidation in the atmosphere, containing at least one nitrogen compound, with heating at least up to 300°C. Then the air is supplied and the piston ring is cooled in the air presence. As a result, the nitrided diffusion layer, located above it the nitrided bond layer, and located above it the oxide layer is obtained at least at the first side surface, the second side surface and the outer peripheral surface. The piston ring is placed into the aqueous electrolyte, containing chromium in the ionic form and the solid particles, and the layer of chromium and mentioned solid particles is electrochemically deposited at least to the outer peripheral surface.EFFECT: obtaining the piston ring with high wear-resistant outer peripheral surface and the side surface, which has both high hardness and high corrosion resistance.15 cl 3 dwg

Piston ring with variable surface line, which contains the highest point // 2613793
FIELD: machine building.SUBSTANCE: invention relates to the piston ring (1), which has an outer working surface (3), two lateral sides (5, 6) and an inner circumferential surface (7). The working surface (3) is profiled. Profile of the working surface is substantially spherically convex and has a highest point (B1). The axial position of the highest point (B1) is changed periodically in a circumferential direction.EFFECT: invention provides carrier mirror lubricating oil, evenly distributed over the circumferential surface of the piston.7 cl, 7 dwg
 
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