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

Wave gasket // 2641987
FIELD: manufacturing procedure.SUBSTANCE: invention relates to flat sealing gaskets for sealing the detachable flange connections, for example, flanged connections of pipelines, fittings, pressure vessels. Wave gasket contains a metal ring with a wave cross-section, located between the graphite layers. Surfaces of at least the cusps of the metal ring are ridged.EFFECT: ensuring the tightness of the flange connection even with its substantial deviation from flatness.1 cl, 5 dwg
Rotating sealing unit for compensating radial deflection and inclination // 2641779
FIELD: machine engineering.SUBSTANCE: device comprising a body, an opening of the body and a shaft rotatably passing through the body opening, the rotating seal assembly comprises a seal holder stop coupled to the body and defining a cavity surrounding the shaft, a seal holder located inside the seal holder cavity. The seal holder is arranged for certain radial deflection and inclination relative to the stopper holder stop, and wherein the seal holder is held by the seal holder stop so as to prevent rotation of the seal holder relative to the seal holder stop, a sealing for rotating shaft located on the seal holder between the seal holder and the shaft, and sealing of the seal holder located between the seal holder and the seal holder stop.EFFECT: invention improves the reliability of the device.20 cl, 6 dwg

Seal for turbo-fan engine // 2641421
FIELD: engines and pumps.SUBSTANCE: seal for sealing the gap between the blade and the cover plate of the straightening blade of the guide apparatus comprises a connecting portion for connecting to the cover plate, a ridge flexible portion and a collar flexible portion. The ridge flexible portion extends from the connecting portion and tapers towards the tip to form a rounded angle between the blade and the cover plate, when the tip is in contact with the blade. The collar flexible portion extends from the seal inner surface and has such sizes in order to come into contact with the structure upper surface to attach the vain and maintain gas impermeability.EFFECT: according to the present invention the seal does not require intensive labour operation, it requires only attachment to the cover plate and integration into the straightening blade of the guide apparatus for sealing the flow of air and not to cause turbulence in the air flow.4 cl, 8 dwg
ethod for producing slip ring of end seal // 2639437
FIELD: technological processes.SUBSTANCE: slip ring of an end seal is made by the method of spark-plasma sintering of a composite powder material based on titanium, silicon carbide and graphite, including the preparation of a powder mixture in a ratio of its components: 50 wt % Ti, 35 wt % SiC, 15 wt % C, preliminary mechanoactivation of the powder mixture in a planetary mill in intermittent operation for 180 min at a drum rotation frequency of 240-280 rpm, performing a plasma spark-sintering process of a powder mixture under vacuum at a temperature of 1300-1400°C, a pressure of 15-25 MPa and holding for 3-10 minutes.EFFECT: improved surface quality of the slip ring of the end seal.1 cl

etal ring static gasket // 2638707
FIELD: metallurgy.SUBSTANCE: metal ring static gasket (10) comprises the first ring support portion (12A) and the second ring support portion (12B) located opposite it. The gasket also comprises a ring central portion (14) perpendicularly connecting the mentioned first and second ring support portions and hermetically connected to each of them by a circular weld, wherein the entire assembly in cross section is made in the form of a lying H. A method for manufacturing a metal ring static gasket 10 is described.EFFECT: invention improves the reliability of the connection.10 cl, 6 dwg

Environmentally impermeable plug connector case // 2637809
FIELD: electricity.SUBSTANCE: environmentally impermeable case (1) of the plug connector is formed from a main body (2) and a mounting flange (10) moulded to the main body (2). With the mounting flange (10), the sealing element (20) is correlated, which is hermetically pressed between the mounting flange (10) and the mounting surface (3). To seal the fastening holes (11) provided in the mounting flange (10), the sealing sleeves (21) are shaped in the sealing element (20), extend into the mounting holes (11) and at least completely penetrate them. The mounting bolt installed in the mounting hole (11) can thus seal the mounting hole (11) with its head by means of a sealing sleeve (21), which is flattened by the bolt head.EFFECT: increase the reliability of protection from the environment.14 cl, 5 dwg

Vessel for storing and transporting hazardous goods // 2636973
FIELD: machine engineering.SUBSTANCE: vessel has a body with a hemispherical bottom and is provided with a pressure shell with a seal. The pressure shell includes an elastic layer, a protective corrosion-resistant and sealing layer. The vessel is provided with a pole hole. Protective corrosion-resistant and sealing layer of the bottom is made of steel and bronze spirals in ratio of 2:1, pressed with each other and together with fluoroplastic material which outer surface is additionally pressed with reinforced braid made of bronze spirals. Body and pressure bearing shell of the vessel are made with a protective process coating, which contains, wt %: SiO2 15-21; MgO 5-10; Na2O 7-8.5; 3CaO⋅Al2O3 1-9; Al2O3⋅MgO 2-5; B2O3 8-12.5; Vmorphol 2.5-3.5; NiAl2O4 3-5; NiSiO43.5-10; Al2O3-the rest. Safety indicators are fixed on the outer surface of the seal, made in the form of two sensors, one of which records the temperature of the seal, and the second sensor responds to seal deformation.EFFECT: increased safety of storage and transportation of dangerous substances.1 dwg

Damping device // 2636958
FIELD: technological processes.SUBSTANCE: device consists of a cylindrical and two end walls, a fitting, an internal sealing chamber, an outer rubber shell with sealing annular rubber protrusions, and a reinforcing rubber-cord frame. In the conjugation areas of the cylindrical and end walls, at least, one additional rubber-cord tissue layer is on top of the rubber-cord frame layers. End portions of the additional rubber-cord tissue layer and end portions of the base rubber-cord tissue layer located at the respective radial aimed rubber-cord overlapping bands, have the same width and the same direction of threads with the threads of the radially directed rubber-cord bands. The sealing annular rubber protrusions with a cross section in the form of triangles of radius R smoothly pass to the outer rubber shell.EFFECT: increasing the reliability of the damping device and increasing the sealing of the pipeline.2 cl, 4 dwg

anufacture of sealing cups // 2636601
FIELD: machine engineering.SUBSTANCE: provide existence of an internal disk (25) having the first front side (25X) and the second front side (25Y) opposite to each other, the central axial hole (18) and at least one channel (23) for lubricant oil, hammer the specified channel (23) and remove, after the specified hammering, the thickness (D) of the internal disk on both sides of this disk.EFFECT: improve the reliability of the device by improving the manufacturing process of sealing cups.9 cl, 24 dwg

ethod for manufacturing piston for internal combustion engine // 2636424
FIELD: engines and pumps.SUBSTANCE: edge and/or bottom of a cavity (14) of the combustion chamber is subjected to a fusion processing, the depth of which is changed in the circumferential direction. Current, voltage, feed rate, and/or distance from the welding electrode to the surface is varied. The fusion processing is performed deeper in the plane of plane (24), which contains an axis (20) of the piston pin.EFFECT: improved resistance of the combustion chamber to alternating thermal and mechanical stresses.4 cl, 3 dwg

Oil seal with one sealing ring // 2636284
FIELD: machine engineering.SUBSTANCE: seal includes first and second seal rings (44. 46) inserted into contact engagement along respective side surfaces, and first and second closing rings (40, 42) arranged around the first and second sealing rings (44, 46), so that outer diameters (OD5, OD6) of the first and second sealing rings (44, 46) are brought into contact with the inner diameters (ID3, ID4) of the first and second closing rings (40, 42), respectively. A support ring (36) is engaged with the first sealing ring (44) and the first closing ring (40). A stop ring (38) is brought into contact with the second sealing ring (46) and the second closing ring (42). In several embodiments, the first sealing ring (44) has a width (W5) which is smaller than the width (W6) of the second sealing ring (46). Another embodiment is also described.EFFECT: improved reliability of the device.19 cl, 9 dwg
Sealing gasket for flange connection // 2635950
FIELD: machine engineering.SUBSTANCE: sealing gasket has a field width equal to or close to the width offlanges sealing surface, and comprises a multilayer seal. The sealing is made with different thicknesses along the width of the gasket, while the layers of gasket contacting the surface of flanges are formed of soft sealing materials. The gasket part, having the maximum thickness, serves as the main seal zone and can be located along the outer, inner edge or in the middle of the flange surface.EFFECT: overlapping of the entire sealing surface of flanges and its reliable protection against the effects of aggressive and coking medias, ensuring the estimated compression pressure of the gasket.8 cl, 7 dwg

Wear-resistant coating for piston rings // 2635119
FIELD: chemistry.SUBSTANCE: wear-resistant protective coating for piston rings contains, wt %: Fe from 15 to 25, W from 10 to 20, Cr from 20 to 30, Ni from 15 to 25, Mo from 1 to 5, P from 0.1 to 0.5, B from 0.01 to 0.1, C from 0.1 to 5, Si from 0.1 to 2. The method of applying the wear-resistant protective coating to the piston ring includes the preparation of components in a powder form and the application of components to the substrate by the method of high velocity oxygen fuel spraying (HVOF).EFFECT: increasing wear-resistance of piston rings.9 cl, 1 ex, 2 tbl, 5 dwg

Sliding element, in particular, piston ring with resistant coating // 2634811
FIELD: machine engineering.SUBSTANCE: invention relates to the sliding element for an internal combustion engine equipped with a wear-resistant coating (10) which is located on at least one running surface of the sliding element, wherein the coating (10) from the inside to the outside has a carbide or nitride layer (16), a carbide-containing DLC layer (17) located thereon, a PVD-DLC layer (22) located on the preceding layer free from metal and a metal-free PACVD-DLC layer (18) placed on the preceding layer. In a particular embodiment of the invention, the sliding element is a piston ring.EFFECT: sliding element is provided and improved with respect to combination of properties of friction and wear-resistant coefficients.16 cl, 2 dwg

Seal for use in extrusion device // 2634777
FIELD: machine engineering.SUBSTANCE: according to the invention the seal (300) includes an elastic sealing washer (326) which is arranged in a plane substantially perpendicular to the extrusion direction and has a passage opening (332) which passes an endless profile (10) provided with a sealing edge adjacent to the endless profile. In addition, a connecting means (328) are arranged along the sealing edge. There are clamping devices (320) located in a plane parallel to the sealing washer (326) and has the passage opening (332) for the endless profile and includes connecting means (324) for connecting the connecting means (328) to the clamping means (320).EFFECT: creation of reliable and strong seal at low material costs.11 cl, 12 dwg

End contact seal of turbomachine rotor // 2634510
FIELD: machine engineering.SUBSTANCE: end contact seal of turbomachine rotor contains a bushing mounted on the shaft and fixed with respect to the last in the axial direction, an additional bushing rigidly connected to the stator, a graphite ring mounted in an additional bushing and contacting one of its ends with a radial wall of the latter, and an axial spring. Also, the end seal comprises an additional graphite ring mounted on a collar formed on the outer surface of the bushing and in contact with the graphite ring at the end, an additional collar made on the outer surface of the bushing, an annular element made with a complementary collar and contacting by a part of its inner surface with a part of the outer surface of the additional graphite ring. Between the additional graphite ring and the additional collar, an annular cavity is formed in which an axial spring is installed, wherein the graphite ring is fixed against rotation with respect to the additional bushing. The internal diameters of graphite ring, the additional graphite ring, and also the said radial wall are arranged at the same level, in addition, the oil supply channels are provided in the bushing, and in the additional graphite ring - the openings communicating the oil cavity with the annular cavity and the oil supply line respectively.EFFECT: reduction of the degree of graphite ring wear and increase in the allowable pressure drop across the seal.1 dwg

Sealing // 2633740
FIELD: machine engineering.SUBSTANCE: sealing unit is made in the form of a multi-layered cylinder, part of which is fixed between the inner and outer rings. Flexible elastic sealing elements are created by grooves that overlap the surface of the subsequent element. The outer surface of multilayer cylinder is in contact with the large-diameter surface of the end groove of the shaft shoulder.EFFECT: reliability, manufacturability and reduced diametral dimensions of the sealing unit.2 dwg

Sealing // 2633739
FIELD: machine engineering.SUBSTANCE: sealing unit made in the form of flexible elastic elements assembled in a multi-layered cylinder, part of which is fixed between the inner and outer rings. Flexible sealing elements have grooves, while the grooves of the previous element are overlapped by the surface of the subsequent one. The inner surface of multilayer cylinder is in contact with the surface of shaft collar.EFFECT: reliability, manufacturability and reduced diametral dimensions of the sealing unit.2 dwg

Piston ring with increased fatigue limit for internal combustion engine and method of piston ring manufacture // 2633734
FIELD: machine engineering.SUBSTANCE: piston ring (2) contains a working surface (4), which is bounded from above by the upper edge (3) of the working surface, and from below by the lower edge (1) of the working surface. Compressive stresses are created along at least part of the peripheral periphery of the piston ring at the upper edge (3) of the working surface and/or at the lower edge (1) of the working surface, wherein these compressive stresses are created by roller smoothing.EFFECT: invention increases the fatigue limit of piston ring.12 cl, 5 dwg

Sealing // 2633729
FIELD: machine engineering.SUBSTANCE: sealing is made in the form of a multilayer cylinder, one end of which is fixed between the outer and inner rings. In each cylindrical layer along the generatrix there are grooves, flexible elastic sealing elements are formed between them. When assembling a multilayer cylinder, each successive layer overlaps the grooves of the previous one. Sealing is tightly seated on the shaft by the inner ring, and the outer diameter of the multilayer cylinder is in contact with the cylindrical surface of body. The sealing rotates together with the shaft, under the action of centrifugal forces, the flexible elastic sealing elements are pressed against the cylindrical surface of body, thus ensuring the tightness of the gap between the body and the shaft.EFFECT: sealing with small diametrical dimensions creates reliable operation of the product.2 cl, dwg

Sliding element, in particular, piston ring, with coating // 2632338
FIELD: engine devices and pumps.SUBSTANCE: coating from the inside to the outside has a metal-containing adhesive layer and a DLC layer. The DLC layer is non-hydrogen layer consisting of amorphous diamond-like carbon layer that pass a basic DLC layer which is extended from the adhesive layer to the subsequent coating DLC layer, and has carbon content greater than about 98.5 at %, oxygen and/or hydrogen and/or nitrogen content is in each case less than about 0.5 at %, and the ratio of carbon sp2/sp3 is between about 1 and about 3. The non-hydrogen layer of amorphous diamond-like carbon has a coating DLC layer which is extended from the basic DLC layer to the surface of the sliding element and, as compared with the basic layer, has a lower carbon content, and/or higher oxygen content and/or higher hydrogen content, and also contains metals and/or metal oxides and has carbon ratio sp2/sp3 between about 1 and about 3.EFFECT: increased mechanical and tribological properties of elements, in particular, piston rings for internal combustion engines.18 cl, 4 dwg, 2 tbl

ethod of manufacture of high-pressure metal-plastic ballon for space ship // 2631957
FIELD: technological processes.SUBSTANCE: method involves the manufacture of a metal liner having upper and lower convex bottoms of the same thickness that are hermetically sealed at their edges along the perimeter; Thermal treatment of a metal liner, application of an anticorrosion coating on its outer surface and the manufacture of an external reinforcing shell from a band composite material. The winding of each tape is performed with the formation of a loop by winding it onto a plate fixed outside the process demountable removable ring. The design of threaded joints ensures uniform tension of each pair of loops of the balloon attachment elements and at once six adjusting-tension degrees of freedom simultaneously.EFFECT: increasing the reliability of the balloon during the manufacture and operation, simplifying the manufacturing process.3 cl, 4 dwg
ethod for cooling pistons, rods and cylinder of single-stroke engine with external combustion chamber using energy of air compression in compressor cavities // 2631843
FIELD: engine devices and pumps.SUBSTANCE: SUBSTANCE when temperature of the pistons, rods and cylinder of the engine is above optimal, a control system switches an air feed valve to open position. The air compressed in the compressor cavities enters the turbine and is discharged into the atmosphere. The turbine drives a cooling liquid pump and a fan. The cooling liquid pump pumps cooling liquid through the channel of the piston group and through space between engine cylinder and its jacket. The radiator is blown by the fan. As a result, the heat from the piston group and the engine cylinder is discharged through the radiator to the atmosphere. The control system of the temperature sensor of the cooling liquid controls the temperature of the cooling liquid and, when it is lowered, closes the air supply valve.EFFECT: increased cooling efficiency of the pistons and rods.1 dwg

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
 
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