Of the straight-cylinder type (F15B15/14)

Hydro (pneumo) cylinder // 2622992
FIELD: machine engineering.SUBSTANCE: hydraulic (pneumatic) cylinder is used to move the actuator from one position to another. Hydro (pneumatic) cylinder (10) includes a plurality of step portions (28a, 30a, 32a, 34a) of the first through fourth ranging in first castle butt connector assembly (26) of the cover (14) of the head, and a plurality of stepped portions ( 28b, 30b, 32b, 34b) from first to fourth in the second castle ranging butt connector assembly (50) of the cover (16) of the stem. Selective assembly of a cylindrical pipe (12) at any one pair of step portions (28a, 28b, 30a, 30b, 32a, 32b, 34a, 34b) of the first through fourth allows in case of use of a new cylinder tube (12), characterized in diameter together with a new piston (18) and the subsequent selective mounting of the cylindrical tube (12) by a single pair of step portions (28a, 28b, 30a, 30b, 32a, 32b, 34a, 34b) of the first through fourth enable obtaining hydraulic (pneumatic) cylinder (10) with a different channel diameter.EFFECT: expansion of output force control range.4 cl, 6 dwg

Hydro (pneumo) cylinder // 2622214
FIELD: machine engineering.SUBSTANCE: hydraulic (pneumatic) cylinder (10) on the first annular projection (34) of the cover (14) of the head to be freely mounting and dismounting established first positioning ring (26) and the second annular projection (48) of the cover (16) of the stem a freely mounting and dismounting the second set positioning ring (28). From the outer circumferential surfaces of the first and second positioning rings (26, 28) inserted into the opposite end portions of the cylindrical pipe (12). Wherein the first and second positioning rings (26, 28) allow positioning and supporting both end portions of the cylindrical pipe (12).EFFECT: by preparing the new cylindrical pipe with a different diameter and new first and second positioning rings and mounting new cylindrical pipe through the new first and second positioning rings mounted on the first and second annular ridges, it is possible to obtain mentioned cylinder with a different diameter of the cylinder bore.5 cl, 7 dwg

Double-acting cylinder with double rod // 2610372
FIELD: mechanical engineering.SUBSTANCE: invention relates to mechanical engineering, particularly to double-acting cylinders with double rod with the straight reciprocating motion of the output link, and can be used in horizontal or vertical hydropercussion mechanisms (hydraulic hammers), which are used for dipping of long rod elements, such as piles, reinforcing bars, pipes into the soil. The hydraulic cylinder comprises a cylinder, rod with a false rod, ends of which extend through the cover closing the cylinder ends, the piston rod, at that, the rod is connected with the false rod through a pivot bearing and retaining rings, and the piston rod is connected to the rod by a stop nut and locking half-rings.EFFECT: invention increasing reliability of resource of turbo-generator.2 dwg

Double action translational movement volumetric displacement cylinder // 2608163
FIELD: machine building.SUBSTANCE: cylinder is intended for working member moving from one position to another. Cylinder consists of housing, including cylinder, front cover, having through holes for working balls inlet-outlet, branch pipe, having hole for piston rod output, in which wall annular grooves are arranged, filled with balls, rear cover having through holes for working balls inlet-outlet, separator, and piston, which is working element and consisting of rod and piston, having annular grooves on its outer surface, filled with balls, and intended for performance of operation by means of piston reciprocation from working balls impact on it.EFFECT: technical result is simplification of cylinder manufacturing.12 cl, 5 dwg

Translational one-way action volumetric displacement cylinder // 2608162
FIELD: machine building.SUBSTANCE: cylinder is intended for working member moving from one position to another. Cylinder contains housing, including cylinder, front cover, having through holes for working balls inlet-outlet, rear cover, having through hole for piston rod output. In cover wall annular grooves are located, filled with balls. Two flanges, piston, which is working element. On its outer surface piston has annular grooves filled with balls.EFFECT: technical result is production cost-cutting.8 cl, 2 dwg

Control cylinder for motor brake-decelerator with devices for generation of elastic recovery // 2597738
FIELD: engines and pumps.SUBSTANCE: invention can be used in internal combustion engines, equipped with motor brakes-decelerators. Control cylinder (12) of motor brake-decelerator is intended for creation of deceleration by throttling flow of exhaust gases on vehicle engine turbo-supercharger outlet side. Control cylinder (12) has cylindrical housing (13) with piston (14) with piston rod (15). Piston (14) divides housings (13) to spring chamber (16) with spring (17) for piston rod (15) and pressure chamber (18) for generation of compressed air by means of force actuation by means of piston (14). Piston (14) is designed with possibility to interact with elastic recovery devices. Piston rod (15) can displace in lengthwise direction relative to piston (14). Devices for generation of elastic recovery contain pneumatic spring located inside cylindrical housing (13), which is made with possibility of action, on one side, on piston rod (15) and, on the other side, on piston (14).EFFECT: technical result consists in reduction of number of parts and in reduction of dimensions.6 cl, 9 dwg

Hollow hydraulic cylinder // 2596679
FIELD: engines.SUBSTANCE: hydraulic cylinder relates to displacement hydraulic motors designed for working fluid flow energy conversion into mechanical energy output link moving reciprocally. Hydraulic cylinder comprises body with fasteners consisting of front and rear end covers, equipped with seals and fasteners on body, hollow rod with fasteners and, mounted thereto, a hollow piston with seals, body is made in form of two hollow cylinders, coaxially inserted into each other to form a circular cavity in between and interconnected by front and rear hollow end covers, hollow rod with hollow piston is inserted into hollow annular space between cylinders of body, front cover is detachable, consisting of two end washers, end surface of hollow piston on side of rear end cover is made in form of stepped tooth crowns, fluid feed hole in piston cavity is directed at radially located tooth surface, and its longitudinal axis is tangent to axis of annular cavity.EFFECT: technical result is high reliability of hydraulic cylinder.1 cl, 3 dwg

Plunger hydraulic cylinder // 2594098
FIELD: energy. SUBSTANCE: hydraulic cylinder is intended for use in power engineering, metallurgy, construction and mining industries. Hydraulic cylinder comprises piston, cylinder, where on working cylindrical surface of piston, made from structural steel, there are circular rollers with width 6-12 mm made from high-hardness wear-resistant friction martensite, spaced apart through a distance larger than width of rollers by 1.2-1.5 times, having in cross section, in middle part, support cylindrical surfaces and inclined sides, arranged on both sides of support surfaces. Exit of piston from cylinder is performed through a cover, in which there is a drain hole and a cup-type seal, on other side hydraulic cylinder adjoins a body, having two inlet branch pipes with diameter equal to half diameter of hydraulic cylinder, hydraulic cylinder working surface is tempered with HFC. EFFECT: technical result is longer service life of piston of hydraulic cylinder, enabling operation thereof at speeds higher than 2÷3 m/s, reduced friction losses. 1 cl, 3 dwg

Hydraulic drive of reciprocal motion // 2586999
FIELD: machine building.SUBSTANCE: invention relates to machine building, particularly, to devices intended for conversion of working fluid energy into mechanical energy. Hydraulic drive of reciprocal motion consists of housing, dual-action hydraulic cylinder with piston with rod and dividing cavity of hydraulic cylinder into piston and rod chambers. Each chamber is equipped with a nozzle to feed working body. Piston is made double and together with rod is fixed on housing of hydraulic drive. Piston rod on both sides is hollow, with formation inside rod of two cavities separated by blind web arranged in area of piston at its central part. One rod is connected to cavity of piston chamber of hydraulic cylinder channels made in wall of rod in area of piston on side of piston chamber. Another rod is connected with rod chambers of hydraulic cylinder channels made in wall of rod in area of piston on side of piston chamber. Hydraulic cylinder to displace the piston, and on its surface there is a gear rack to interact with gear arranged in housing of hydraulic drive and installed on actuator driven unit.EFFECT: simplified design.1 cl, 3 dwg

Linear actuator // 2580979
FIELD: manufacturing technology.SUBSTANCE: linear actuator is designed for reciprocating movement of a movable work table. On guide block (76), which is part of guiding unit (16), on its lower surface facing main housing of cylinder (12), is formed by a pair of grooves circulation (80) of balls, and in grooves of circulation (80) of balls is multiple balls (58). On both end faces of guide block (76) are fitted respectively covering paired blocks (78a, 78b). Paired ball holders (82a, 82b), which are formed in form of grippers are engaged with cover units (78a, 78b) at introduction of holders in grooves of circulation (80) of balls and balls (58) are retained. Paired cover plates (86a, 86b) are installed on end surfaces of following units (78a, 78b), and gripping cover holders (84a, 84b) are installed so as to retain cover plates (86a, 86b), cover units (78a, 78b) and guide unit (76), connecting them together.EFFECT: simplification of design.12 cl, 20 dwg

Hydraulic device of control system, such as propeller pitch change device // 2572731
FIELD: machine building.SUBSTANCE: hydraulic device is intended for control system of the propeller pitch change. The hydraulic device (100) contains a casing (10), a piston rod (20) driven by hydraulic liquid under pressure, a first drain channel (35) to drain outside internal leaks of the hydraulic liquid in said device (100), at that it contains a second drain channel (37) to drain outside the said drains of the hydraulic liquid in said device (100), at that the said first channel (35) and said second channel (37) are such oriented in two different directions, that each of said channels (35, 37) interacts at level of one of their ends inside the said casing (10) of the said device (100).EFFECT: simplified process.8 cl, 2 dwg

Hydraulic drive mainly used for mobile antenna unit with lifting element // 2570679
FIELD: machine building.SUBSTANCE: invention relates to lifting equipment, in particular to hydraulic drive of the unit with lifting element. The hydraulic drive (HD) contains the control system, the first three-position hydraulic control valve with electromagnetic control (TH), the first and second unilateral hydraulic locks (ULHL), the first and second flow limiters (FL), the throttle and the base-mounted, vehicle chassis-based pump unit (PU) with the tank. PU through the first TH, pressure and drain lines (L) is hydraulically connected with the stem and piston cavities of at least one hydraulic lifting cylinder (LC) of the lifting element. LC is hingedly connected respectively with the named base and LE. The pressure L, connecting PU with LC, is able to interconnect with the stem cavity of LC through the first TH in one its position and is able to interconnect with the piston cavity of LC in another position of the first TH through the series installed first FL, the first ULHL and the second FL. The first FL is designed with a possibility of flow rate limitation expense when lifting LE, and the second - when lowering LE. PU contains the unloading valve hydraulically operated by the second TH connected to the pressure L and the manual hydraulic pump. The drain L, connecting LC with PU, is able to interconnect with the piston cavity of LC through series installed second ULHL and the named throttle in the same position of the second TH. The throttle in L is installed between the second ULHL and LC. The second TH contains two slide valves which are installed in parallel with a possibility of their simultaneous movement. One of slide valves is hydraulically connected with operating unloading valve cavity, and another one - with the operating cavity of the second ULHL. PU includes the small-sized pump station containing series installed controllable axial-plunger hydraulic pump with the capacity regulator and the centrifugal hydraulic booster pump which is connected with the tank designed with a possibility of inert-gas pressurization. The invention allows to provide 2-speed mode of lowering of the lifting element (LE) at transfer of the latter from the working position into the transportation position at significant decrease of LE lowering speed at the final section of movement.EFFECT: invention provides increase of operational characteristics and reliability of the hydraulic drive (HD).4 cl, 5 dwg

Hydraulic cylinder // 2563081
FIELD: machine building.SUBSTANCE: hydraulic cylinder contains a casing, a piston, a rod, lifting eyes and seals, at that the rod has safety wearproof bandage made by winding of the composite antifriction material containing reinforcing woven material, i.e. glass fabric as the base, and as the polymer binding 1 part by weight of ethynol varnish, and 0.2-0.4 parts by weight of divynylstyrene latex SKS-65, and as self-lubricating filler - graphite powder - 0.3-0.5 parts by weight, and fluoroplastic powder - 0.4-0.7 parts by weight.EFFECT: increased durability and reliability of the hydraulic cylinder, especially at negative temperatures and abrasive ingress in the friction surfaces.1 dwg

Hydraulic cylinder with thin-wall cylinder // 2555623
FIELD: machine building.SUBSTANCE: hydraulic cylinder has casing, piston, stock, eye-rings, seals, at that the piston is installed in the casing on the guide thin-wall cylinder made out of composite antifriction material based on reinforcement woven fabric, polymer binding agent, and self-lubricating filler. The guide thin-wall cylinder is installed in the casing with transition fit. Glass fabric is used as reinforcement material, varnish ethynol in amount of 1 weight part and latex divinylstyrene SKS-65 0.2-0.3 weight parts are used as polymer binding agent, and graphite powder 0.4-0.5 weight parts and fluoroplastic powder 0.5-0.8 weight parts are used as self-lubricating filler.EFFECT: increased durability and reliability of the hydraulic cylinder, especially at negative temperatures and abrasive ingress in the friction surfaces.1 dwg

Hydraulic device, vehicle with it and its application for inclination of cabin mounted on chassis // 2555588
FIELD: transport.SUBSTANCE: hydraulic device (1) comprises cylinder (2) and piston (3) reciprocating therein. Piston comprises rod (4) and disc (5) to divide said cylinder in lengthwise direction into first chamber (6) and second chamber (7). Rod id displaced by controlled hydraulic fluid feed into chambers so that piston rod extends from the cylinder when said fluid is fed via first inlet (8) into first chamber via first line (9) and pulls therein when said fluid is fed via second inlet (10) into second chamber (7) via second line (11). Hydraulic device is equipped with pressure instantaneous drop means in the case of external force effects of magnitude exceeding a definite threshold which makes piston rod (4) move relative to cylinder (2). Hydraulic device is used to incline the cabin coupled with vehicle chassis. Cabin can displace backward relative to chassis at collision by its front.EFFECT: better shock energy absorption at collision.5 cl, 5 dwg

Displacement device to be used with actuators // 2542654
FIELD: machine building.SUBSTANCE: displacement device to be used with actuators is described. The displacement device to be used with a piston actuator comprises the first bush which, at least partially, is enclosed by the second bush and connected to the second bush in a movable way. The displacement device is additionally equipped by a stop to limit the value of displacement of the first bush in respect to the second bush, and the displacement element is set between the first and the second ends of respectively the first and the second bushes to press the first bush from the second bush. The displacement element is completely placed inside the chamber provided by the first bush and the second bush.EFFECT: improved design.17 cl, 12 dwg

Clutch drive // 2541603
FIELD: transport.SUBSTANCE: clutch drive comprises control component, for example, pedal with return spring coupled with tracer. Said tracer varies automatically air pressure in the clutch air actuator subject to clutch control component position, said that of air cylinder piston with rod acting on clutch lever. Tracer comprises the following elements: clutch control element position sensor, one normally-closed electromagnetic air valve, one normally-open air valve, clutch actuator chamber air pressure sensor and clutch electronic control unit. Said elements are interconnected as follows: clutch control element output is connected with control unit; normally-closed electromagnetic air valve input is connected with control unit, while its air input is connected with vehicle air system and air output is connected with actuator working chamber, electrical input of normally-open electromagnetic air valve is connected with control unit while its air input is connected with actuator working chamber and air output with atmosphere. Air pressure pickup pneumatic input is connected with actuator working chamber while its electric output is connected with control unit. The latter is supplied by vehicle onboard circuit. To up the response and adjustment accuracy, several one normally-closed electromagnetic air valves and one normally-open air valve can be incorporated with this system.EFFECT: higher reliability.1 dwg

Drive system with servo mechanism for automotive multispeed gearbox // 2537098
FIELD: transport.SUBSTANCE: invention relates to automotive industry. This system comprises cable connection (10), servo cylinder (30), piston (32) arranged to slide inside servo cylinder to divide its inner space into inner and outer chambers (36, 38), piston rod (34) coupled with piston and extending outside thereof, and adjusting valve (60) communicating with working medium source. Note here that one end of the cable can be connected with gearbox control lever (2). Its opposite end can be connected with adjusting valve (60) for fluid selective feed into servo cylinder. Note here that piston rod (34) is furnished with first fastener (40) to be arranged at carrier structure fixed component (4). Servo cylinder is provided with second fastener (50) to couple servo cylinder with gearbox control link (6). Note also that said cable extends through said central trough bore (35) in lengthwise direction and piston assembly into servo cylinder (36) wherein cable is connected with drive lever (62). The latter can transfer lengthwise displacement of cable (14) to control vale for its actuation. Note that said cable is fitted in said through hole to slide therein. Through hole seal accommodates push-pull cable to prevent working fluid leaks at pressure from servo cylinder.EFFECT: decreased overall dimensions.25 cl, 6 dwg

One-way air cylinder to be used at locomotive platform // 2496030
FIELD: engines and pumps.SUBSTANCE: proposed cylinder serves to displace working tool from one position to another one. Air cylinder comprises body, nonpressure head, piston hollow rod, piston head and pusher. Cylinder body has locating flange and inlet. Nonpressure head has locating flange. Piston hollow rod has open end and closed end. Piston head is secured to hollow rod to make a closed end of piston hollow rod. Pusher has let-in end fitted inside piston hollow rod and connection end. Nonpressure head incorporates hollow rod guide and hollow rod seal while piston head has piston guide and piston seal. Both hollow rod guide and hollow rod seal are engaged to slide coupled with piston hollow rod. Both piston guide and piston seal are engaged to slide coupled with cylinder body.EFFECT: higher reliability.20 cl, 7 dwg

Drive assembly on fluid medium, and movement method of adjustable seal in radial direction (versions) // 2486350
FIELD: machine building.SUBSTANCE: drive assembly on fluid medium includes a cylinder with an inlet opening, a piston located in the cylinder, an annular groove on the piston or the cylinder, piston rings and a spring. Piston rings are located in the annular groove with a gap. The spring is inserted into the annular groove on high-pressure surface of piston rings with formation of gaps between the first surface of spring and high-pressure surface of piston rings and between the second surface of spring and high-pressure surface of annular groove. Spring loads piston rings for sealing between low-pressure surface of piston rings and low-pressure surface of annular groove. When the adjustable seal is being moved in axial direction, the main axial contact is open between the adjustable seal and primary sealing surface. As per one of the versions, contact is created between adjustable seal and secondary sealing surface. Radial pressure force acting on the adjustable seal is reduced, and the value of force required for radial movement of the adjustable seal is decreased. After that, adjustable seal is moved in radial direction.EFFECT: inventions allow simplifying the design of the drive seal assembly and enlarging its service life.10 cl, 7 dwg

Seal of hydraulic and pneumatic double-acting cylinder // 2478856
FIELD: machine building.SUBSTANCE: seal includes two sealing chambers made in the form of conical flattened tubes turned inside out with smaller diameter of flattened cones with two-layered overlapped creases with the length equal to double stroke of a piston stock. Ends of smaller diameters of seals are fixed on conical sections of cover plates, and those of larger diameters are fixed on ends faces of the cylinder housing. Creases are made along the joint diameter and inner diameter of the cylinder.EFFECT: avoiding working fluid fleaks.2 cl, 1 dwg

Automotive clutch drive pneumohydraulic booster-3 // 2435077
FIELD: transport.SUBSTANCE: proposed clutch booster comprises housing accommodating control unit and sealed actuator. Said actuator consists of hydraulic and pneumatic pistons fitted on common rod. Pusher is arranged between rod and clutch disengagement drive element to move axially with said rod. Rod face on pusher side extends behind actuator face wall while rod is sealed in actuator face wall by wiper seal, cup or O-ring.EFFECT: higher reliability.1 dwg

Device controlled with fluid medium under pressure with safe cover of chamber containing fluid medium under pressure // 2429388
FIELD: machine building.SUBSTANCE: device consists of case forming chamber. A sliding rod dividing the chamber into the first and the second part is installed in the chamber. Each part of the chamber has a channel for supply of control fluid medium. The first part of the chamber has an orifice closed with a closing element secured in the case with fasteners containing: the first in essence circular groove made in a wall surrounding the orifice, the second in essence circular groove made in the closing element, a filament-like element forming a blocking element for the closing element and positioned between two in essence circular grooves.EFFECT: increased reliability of device.21 cl, 8 dwg

Hydraulic cylinder // 2422685
FIELD: engines and pumps.SUBSTANCE: hydraulic cylinder includes housing with two operating liquid supply/discharge channels and with the first and the second covers fixed on its ends, rod piston installed in housing with possibility of back-and-forth movement relative to housing and the first cover with seals of adjacent surfaces; two-sided bar with parts of various diameters is introduced; at that, the part of the bar with larger diameter, which has the length which is less than value of travel of hydraulic cylinder, is rigidly fixed inside housing of hydraulic cylinder near the second cover which is blind, and in the part of the bar with smaller diameter there is axial blind hole interconnected through radial hole made in the part of bar of larger diameter, with one of operating liquid supply/discharge channels; at that, rod piston has inner axial bore providing the possibility of back-and-forth movement of rod piston through the value of its full travel along outer surface of the part of bar of smaller diameter with seal of adjacent surfaces; at that, surface area of end surface of inner axial bore of rod piston is equal to working surface area of piston, which is formed with outer diameter of stock and inner diameter of housing, and gas cavity formed with inner surface of housing is interconnected by means of outer surface of part of bar of smaller diameter to environment through the third channel made in the housing.EFFECT: reducing axial dimensions of hydraulic cylinder, thus maintaining its working travel.1 dwg, 3 cl

Design of packing unit for hydro- or pneumatic cylinder // 2412380
FIELD: machine building.SUBSTANCE: by means of stepped section (42) packing mechanism (26) clamped between cylinder pipe (16) and jacket (18) of rod is arranged on end section of cylinder pipe (16) forming cylinder device (10). Packing mechanism (26) consists of thin plate (68) made out of metal and packing (70) attached to one side surface of plate (68). Plate (68) and packing (70) form one single piece.EFFECT: simplification of design.10 cl, 7 dwg

Plunger hydraulic cylinder // 2406885
FIELD: engines and pumps.SUBSTANCE: hydraulic cylinder is designed for moving operating equipment of material-handling machines from one position to another. Hydraulic cylinder includes housing 1, plunger 2, guide bush 3, sealing 4, hold-down nut 5, and wiper 6. Outer surface of guide bush 3 is made in the form of stepped cylinder so that shoulder 9 is formed, which interacts with the edge of hold-down nut 5; at that, inner bore of hold-down nut 5 envelopes outer surface 8 of smaller diametre with radial gap so that cavity for arrangement of wiper 6 is formed.EFFECT: increasing service life of plunger hydraulic cylinder by decreasing the wear in "plunger/guide bush" pair.2 dwg

Hydraulic actuator with flexible rod // 2374509
FIELD: machine building.SUBSTANCE: hydraulic actuator is provided for transmission of tractive effort to relocated object. In casing with end cover it is located piston connected to flexible rod with dragging clutch. Compaction unit of flexible rod contains locked cavity with flexible material and sealing element, compressed by piston of cover and pistons of pressure transformer. Hydraulic actuator is outfitted by resilient backbone site including annular bearings connected to resilient members by means of movable bearing bushes installed with ability of shifting in radial direction at caving in of flexible rod and in axial direction at damping of piston or clutch by compaction unit. Resilient members interacting to piston of pressure transducer and movable end cover are matched to cleaning members.EFFECT: reduction of member's wear higher efficiency, simpler design and pressure transducer.10 cl, 5 dwg

Damper's bearing structure // 2374508
FIELD: machine building.SUBSTANCE: invention relates to bearing structure of damper in hydraulic actuator. Structure for fixation of damper (72a, 72b) is located in hydraulic actuator. Coats (14, 16) are installed on of the cylinder (12) casing. Piston (18,) is installed inside the cylinder (12) casing. Damper groove (70a, 70b) contains the first and the second grooves. The first groove (74) is open from the side of end surface. The second groove (76) is located adjoining to the first groove (74) and expands relative to it. According to the first version damper groove (70a, 70b) is formed on the end surface of piston (18) perpendicularly to its axis and is directed to covers (14, 16). According to the second version damper groove is formed on the end surface of cover (14, 16) perpendicularly to its axis and is directed to piston (18). Damper (72a, 72b) contains basic element (80) and expanding relative to its guideline element (82).EFFECT: creation of structure providing easy and reliably install damper on piston or covers.7 cl, 17 dwg

Stop ring for hydraulic cylinder // 2369787
FIELD: instrument making.SUBSTANCE: invention is related to stop ring used in hydraulic cylinder to fix cover to cylinder body. Stop ring is installed in hydraulic cylinder, having chamber with elliptical shape of cross section, and fixes covers that are installed at ends of mentioned body of cylinder. Stop ring comprises bent section, which is installed on surface of internal wall of cylinder chamber and is bent along surface of internal wall of cylinder chamber, a pair of straight sections that diverge from both ends of bent sections and passing parallel to each other, and a pair of convex sections installed on mentioned straight sections and having openings.EFFECT: invention provides for improved reliability of hydraulic cylinder chamber cover fixation with elliptical shape of cross section.7 cl, 15 dwg

Hydraulic cylinder // 2334133
FIELD: engines and pumps.SUBSTANCE: hydraulic cylinder comprises a casing, a piston, a rod, lugs and seals, the casing and rod representing cylindroids. The casing, piston and rod cross-section edges are described by the expression x2/a2+y/b2=1, where a is the ellipse larger half-axis length, b is the ellipse smaller half-axis. The casing, piston and rod cross-section edges should meet the following condition, i.e. a/b=1.8...2.7.EFFECT: higher bending resistance in the cylinder lengthwise plane and ruling out the piston rotation in the casing relative to lengthwise axis.6 dwg

Loading assembly // 2330195
FIELD: engines and pumps.SUBSTANCE: loading assembly relates to machine building hydraulics and can be used to create loads in testing service units and adjusting hydraulic boosters. A variable dynamic load in the loading assembly is created by one spring working in compression and generating equal rod force in the "OUT" and "IN" travel from neutral. Availability of adjusting nut allows varying the rod backlash (rod travel from neutral with origination of a dynamic load). The use of elastic rings, adjusting stops, spaces filled with lubricating grease allows simulating load initiated by friction force.EFFECT: higher reliability.3 cl, 1 dwg

Air cylinder // 2330193
FIELD: engines and pumps.SUBSTANCE: air cylinder is designed to move working tools. The air cylinder incorporates a rod with a piston arranged in a built-up casing incorporating a cylindrical sleeve, a through and blind covers with holes accommodating the unions feeding a compressed air and damping throttling devices, air cylinder covers and piston are jet moulded from thermoplastic polymer material with a glass-fibre filler. The rod, unions and damping throttling devices have special grooves receiving O-rings. The throttling devices represents a bolt with a small head with through threaded bore and an annular groove made on outer thread along with a hole made at the level of the said groove perpendicular to the bolt axis.EFFECT: simpler design, higher reliability, smaller weight and better performances.6 cl, 11 dwg

Hydraulic or pneumatic cylinder // 2327905
FIELD: engine and pimps.SUBSTANCE: hydraulic or pneumatic cylinder contains a sleeve, a rod, a piston dividing the cylinder inner space into a rod and piston spaces, a rear cover, a rod head and piston and rod head sealing elements incorporating anti-friction inserts of bearings of linear motion fitted on the piston and rod head bearing surfaces, respectively. At the said surfaces central part there are circular grooves, their length making about 1/3 of the length of the anti-friction inserts, and circular slots housing rubber rings, the slots communicating with the aforesaid circular grooves. The grooves and slots spaces communicate with the piston and rod head spaces via channels accommodating the valves. The material of antifriction inserts is impregnated with a binder to make the inserts elastic over the entire thickness that allow a good fit between the said inserts and bearing surfaces of the said piston and rod head, given there is a pressure in the spaces. The rod cover end face part accommodates a wiper element.EFFECT: higher reliability.2 dwg

Drive pneumatic cylinder // 2292489
FIELD: piston-type pneumatic drive units, namely designs of pneumatic cylinders.SUBSTANCE: pneumatic cylinder includes sleeve, rod cavity, piston cavity mutually divided by piston with Г-shaped cross section collars arranged in its turnings; spacing rubber round cross section ring placed in groove of piston and pressing sealing petals of Г-shaped cross section collar to sleeve. Said groove has curvilinear convex base having slopes to sides of lateral walls and ridge formed in middle of groove. Said ridge divides two spacing rubber round cross section rings arranged in said groove and pressing respectively sealing petals of Г-shaped cross section collars to sleeve.EFFECT: enhanced efficiency and operational reliability of pneumatic cylinder.3 dwg

Hydraulic cylinder // 2286484
FIELD: mechanical engineering.SUBSTANCE: hydraulic cylinder comprises power cylindrical hydraulic mechanism that receives main hollow piston made of two members of different diameters, pressure and drain hoses connected with the power cylindrical hydraulic mechanism through the control block, and working member connected with the rod. The working member is made of two working members. The first working member is movable and is secured to the main tip provided with plug and mounted in the first face of the power cylindrical mechanism for permitting reciprocation along the longitudinal axis of the power hydraulic mechanism. The second working member is mounted from the side of the second face of the power cylindrical hydraulic mechanism. The pipe is mounted with a spaced relation to the inner surface of the rod. The control unit is mounted on the pressure-tight housing mounted on the side of the power cylindrical hydraulic mechanism. The space of the power cylindrical hydraulic mechanism receives bearing washer that is arranged along the longitudinal axis of the pressure-tight housing.EFFECT: improved structure.4 cl, 4 dwg

Cylinder // 2219387
The invention relates to the field of lifting and transport machinery, namely the cylinders (HZ) double-acting to move the retractable outrigger beams outriggers rotation device of a crane-manipulator installations

Cylinder // 2219386
The invention relates to the field of lifting and transport machinery, namely the cylinders (HZ) double-acting to move the unit, and in particular the first, extendable ladder sections telescoping booms, crane-manipulator installations

Cylinder // 2219385
The invention relates to the field of lifting and transport machinery, namely the cylinders double-acting for lowering and hoisting the anchor-installation paws outrigger outriggers craniomandibular units (CMU)

Cylinder // 2219384
The invention relates to the field of lifting and transport machinery, namely the cylinders (HZ) double-acting to move the unit, and in particular the third drawer of the multi-link telescopic boom craniomandibular units (CMU)

Cylinder // 2219383
The invention relates to hoisting and transport machinery, namely the cylinders (HZ) double-acting to move the unit, in particular the fourth, pull-out section of the multi-link telescopic boom craniomandibular units (CMU)

Cylinder // 2219382
The invention relates to hoisting and transport machinery, and in particular to hydraulic cylinders for lifting and lowering or removal of cargo booms of the crane-manipulator installations

Cylinder // 2219381
The invention relates to hoisting and transport machinery, namely the cylinders (HZ) double-acting to move the unit, particularly the second, retractable section of the multi-link telescopic boom craniomandibular installation

Pneumatic cylinder // 2209351

Pneumatic cylinder // 2208717
The invention relates to the field of engineering, namely, pneumatic volumetric engines with rectilinear reciprocating movement of the output link, and may be, for example, used in the construction of pneumatic cylinders running without oil injection into the compressed air

Cylinder // 2168659

Hydraulic cylinder // 2151922
The invention relates to the field of hydraulics and can be used in the process equipment, in particular in hydraulic systems pressure control bending of the work rolls of the finishing stands way of rolling mills as a hydraulic cylinder bending of compensating for the wear of the work rolls during operation and providing planchenoit rolled strip

Strand, driven by the pressure means of the working cylinder with locking parts for connection cylindrical pipe // 2150615
The invention relates to strand, driven by the pressure means of the working cylinder with locking parts for connection cylindrical pipe used in the field of energy transmission with fluid (liquids, gases) as a pressure means for providing translational motion mechanisms, and it is particularly suitable for use in high pressure corrosive environments

The piston rod of the hydraulic cylinder // 2133395
The invention relates to hydraulic machines working under significant load on the working equipment, in particular to power the hydraulic motors of the reciprocating action of the hydraulic cylinders single or double-acting one-way valve (see
 
2551005.
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