Sealing annular gap between separator and piston preferably for control valve of axial type (versions)

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

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: valve seat is suggested for use with valves for fluids. Valve seat (302) contains ring (302) of valve seat, sealing assembly (422) and lock (424). Valve seat ring (302) has external surface (402) containing the first round groove (414) and second round groove (416) located near the first round groove (414) to form the step profile (418). Sealing assembly (422) is located in the first round groove (414), and lock (424) is located in the second round groove (416) and holds the sealing assembly (422). The valve seat interacts with socket (314) and valve body (304). If the valve stock (318) moves by the drive, the lock element (316) can open or close the hole (322) in the socket (314) to ensure possibility of flowing of flow termination between the input hole (308) and output hole (310).

EFFECT: improved design.

21 cl, 9 dwg

Fuelling valve // 2554673

FIELD: machine building.

SUBSTANCE: fuelling valve contains a body with installed in it supply union, seat in contact with gate, flywheel for the thread rod rotation, channel for medium output. Nut secured on the valve body is made with grooves. In grooves through the fluoroplastic cuffs the resilient rings sealing the stock are installed. From one side the valve interacts via the fluoroplastic seal with the seat, and from the other side - via the pin with thread rod. The valve is equipped with the visual pressure monitoring device, its cavity is connected with the device cavity. Between the casing and cover of the visual pressure monitoring device the spring-loaded stock is installed, it interacts with the stop in top position from one side, and with washer from another side. Between the washer and base of the stock the membrane is located, it along the outside diameter is pressed by the cover and casing of the visual pressure monitoring device. Top tip of the spring-loaded stock upon pressure presence in the internal cavity of the valve projects beyond the cover end ensuring visual monitoring of the pressure presence.

EFFECT: increased reliability, durability and easy operation due to reduced friction coefficient at the stock seal, not requiring tensioning during operation, and implementation of the visual pressure monitoring device in internal cavity.

2 dwg

FIELD: machine building.

SUBSTANCE: proposed invention describes a coaxial valve (10) comprising a casing (11) with an inlet (12) and at least one outlet (14) for the medium (15) passed through the coaxial valve (10). A tubular shut-off member is installed in the valve casing (11) and can travel in its longitudinal direction, it interacts with the inlet (12) and the outlet (14) so that the medium (15) passes through the tubular shut-off member when the coaxial valve (10) is open. At least one valve seat present inside the valve casing has a supporting surface, the tubular shut-off member interacts with the supporting surface of the valve seat in one of its extreme axial positions closing the coaxial valve (10). A control device provides for travelling of the tubular shut-off member between its extreme positions. The supporting surface of the valve seat is formed on a replaceable sealing element (22) installed in the valve casing (11) hole (19) passing essentially across the longitudinal direction.

EFFECT: improved design.

21 cl, 5 dwg

Safety plug // 2552769

FIELD: packaging industry.

SUBSTANCE: invention relates to means for sealing bottles, but can be used for sealing other containers for liquid and bulk products. The safety plug 1 is mounted on the bottle 2 with an annular projection 3, radial ribs 4. The safety plug 1 consists of a depositing funnel 5 with a pipe 6, a lid 7 with a retainer 8, a metal cap 9, a gasket 10 with a seat 11, a valve 12. The seat 11 has elastic elements 13 limiting the channels 14 when the valve is open. The conical surface 17 of the valve disc deforms the elastic elements 13 and closes the channels 14. When opening the bottle 2 the lid 7 is removed, the elastic elements 13 lift the valve 12 and the pressure above and below the valve 12 is aligned.

EFFECT: improvement of sealing.

2 dwg

FIELD: machine building.

SUBSTANCE: invention refers to valve engineering and is designed to shut off flow passage of pipelines operated under high working pressures. A valve comprises a circular casing (101) with a throttle flap (102) and a ring metal gasket set in-between and placed in a saddle formed in one of the said elements while the other forms a seat (102) inclined in respect to the gasket axis. The side surface of a dynamic sealing element (12) of the gasket is in contact with the seat (102) in the closed position of the valve. The dynamic sealing element (12) of the gasket is connected to a resilient static sealing element clamped in the saddle, by a flexible sheet. The dynamic sealing element (12) comprises the first part on the side of the static sealing element contacting with the saddle, and the second part on the side of the seat (102) where a gap between the saddle and the main surfaces of the dynamic sealing element is provided when the dynamic sealing element is distanced from the seat (102). The flexible sheet comprises two branches with a ring in-between. There is a gap between the ring and each of the branches when the gasket is not affected by the pressure in the direction of its axis.

EFFECT: increased reliability of valve operation.

11 cl, 14 dwg

Percussion assembly // 2548227

FIELD: machine building.

SUBSTANCE: percussion assembly contains casing with two channels for work medium entry, each of them is connected with one channel of work medium output via the installed shock valves installed on stocks. Between each shock valve and casing the return spring is installed. In work medium output channel the adjustment screw is installed brought-out to the casing outside surface. In work medium output channel two sylphons are installed, they are connected via stocks with the shock valves. The sylphons are hydraulically connected with each other via the f-shape branch pipe, its free end is brought-out from the casing and plugged with the piston connected with the adjustment screw. The forces of the return springs are made different.

EFFECT: increased operation reliability of the device and simplified design upon decreasing of the materials consumption, ergonomic implementation of the stroke frequency and amplitude control gear of the shock valves.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: group of inventions relates to the field of valve industry and is intended for connection of the valve plug tip with a bearing element. The valve plug assembly contains a bearing element and a plug tip. The bearing element contains the housing with the first and the second end and the first conjugate element, located in an axial direction, contacting with the first end. The first conjugate element has a threaded section. The bearing element is made from metal. The plug tip is designed from ceramic material. The plug tip contains the first end and the second end opposite to the first end. The plug tip contains the second conjugate element contacting with the second end. The second conjugate element has a threaded section. The threaded section of the first conjugate element interacts with the threaded section of the second conjugate element. The glue sticks together, at least, a part of the threaded section of the first conjugate element with, at least, a part of the threaded section of the second conjugate element to fix the ceramic plug tip on the bearing element. The method of mounting of the valve plug assembly is available, as well as a hydraulic control with the named valve plug assembly.

EFFECT: group of the inventions is aimed at simplification of manufacture of the valve plug assembly due to decrease of glue solidification temperature and avoidance of heat treatment of the metal bearing element.

20 cl, 5 dwg

Sliding shutter // 2545254

FIELD: machine building.

SUBSTANCE: in shutter the outside thread bush engages with top section of the spindle when the separating screw enters the spline section of the spindle. The internal thread bush engages with bottom thread section of the spindle when the separating screw enters the spindle groove; on the casing cover via the sleeve with installed separating screw the bearing body with support bearings is secured, in the bearings the outside thread bush is installed. The shutter is equipped with the limiting screw installed transverse to the bottom thread section of the spindle and resting against the slider limiter during the shutter closing, with outside stroke limiter installed on the top thread section of the spindle and resting against end of the outside thread bush during the shutter closing, and with internal stroke limiter installed on the lower thread section of the spindle and resting against end of the slider during the shutter opening.

EFFECT: improved reliability of the drive design, easy control with simultaneous decreasing of weight and size, price of the shutter.

3 dwg

FIELD: transport.

SUBSTANCE: invention refers to transport machine-building industry, and namely to valve units of an automobile. The valve unit includes a valve closing element driven by means of the valve element with regard to the valve seat for opening or closing of a cross-section of the flow for working medium to an opening or closing position. The valve closing element is connected to the valve element by means of the cardan joint so that the valve closing element can be spatially turned relative to the valve element.

EFFECT: achievement of reduction of valve wear and improvement of valve operation due to reduction of deformation of the valve closing element and seat.

5 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: inventions group relates to valves manufacturing and is intended for use as the obturator valve for pipes connection. Valve 1 contains at least one body with throughput passage, obturator 16 secured in rest position against the slot 14 under action of the first force created by preloading device 38. The obturator rotation device 28 is made with the possibility of the obturator rotation between the opened position of the valve 1 for the flowing medium passage and closed position to stop of the flowing medium pasasage. Device 26, 40 for the obturator 16 straight movement from the first position against the slot 14 to the second position where clearance j1 is created between the obturator 16 and slot 14. This device 26, 40 for the straight movement is made with the possibility of the obturator 16 straight movement independently from this obturator 16 rotary traverse. The device 28 for the obturator 16 rotation is made with the possibility of the obturator 16 rotation independently from the obturator 16 straight movement. There is device for pipes connection and method of pipes connection with such obturator valve.

EFFECT: increasing reliability of the pipes connecting device.

17 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed joint comprises combustion chamber seal ring and nozzle diaphragm lip. Said lip is secured at inner housing furnished with lock ring with floating ring. Seal ring and nozzle diaphragm lip form an annular clearance for air feed for film cooling of channel surfaces. Said floating ring has thrust collar. Nozzle diaphragm lip is equipped with guide ring to make annular clearance with nozzle diaphragm lip inner surface. Lip end abuts on flowing ring collar.

EFFECT: stabilised clearance, reliable cooling of nozzle guide and operating vanes.

2 cl, 2 dwg

FIELD: gas and oil production.

SUBSTANCE: circular self-packing unit is used for packing between two circular surfaces. The packing unit consists of a circular base equipped with packing surface. The packing unit also includes a pair of spaced collars diverging in opposite directions from the circular base and located opposite packing surface of the base; collars also have packing surfaces. The base is elastically deformed. The collars are also elastically deformed relative to the base thus performing self-packing between two circular surfaces.

EFFECT: elastic-deformed packing unit facilitates tight packing surfaces adjoining and sufficient contact pressure on packing surfaces maintaining packing under any conditions.

30 cl, 9 dwg

FIELD: mechanics.

SUBSTANCE: invention relates to sealing movable devices in processes involving using cable containers and can be used to seal a moving cable at wellheads on lifting liquid there from by means of swabs. The said device incorporates a casing with an attachment unit, a main and additional sealers furnished with retrievable sealing elements, a main and additional hydraulic mechanisms tightening sealing elements to the drawbar, the said mechanisms being connected to the appropriate main and additional speeders. The casing space with a drain channel is arranged between sealers. The main and additional speeders are controlled by pressure fed from outside. The casing outside accommodates a vessel to gather and remove liquid, the vessel communicating, via a drain valve, with the casing space and wellhead via the valve opening on pulling the cable down into the well. The vessel volume should be no less than that of the liquid leaking into the casing space on lifting the cable from the well. An air valve can be arranged above the vessel valve to prevent and ingress of air into the well.

EFFECT: reliable isolation of movable flexible means with a complicated outer surface being isolated, minimum possible wear out of sealing elements.

2 cl, 2 dwg

Sealing unit // 2315217

FIELD: machine parts, namely constructional members for sealing joining places of movable and stationary members of locking-adjusting fittings of main pipelines.

SUBSTANCE: sealing unit is placed in casing of pipeline fitting with possibility of engaging with its movable member and it includes cavity filled with medium transmitting pressure. Said cavity is in the form of fluid-tightly closed thin-wall tube. Viscous mater is used as pressure transmitting medium. Part of volume of fluid-tightly closed tube is filled with air. Invention provides enhanced operational reliability due to highly uniform action upon surface of locking member in condition of elevated temperature and pressure influence upon fitting without using additional sources of medium creating desired pressure in cavity of sealing unit.

EFFECT: enhanced design of sealing unit providing improved operational reliability of pipeline fitting.

5 cl, 6 dwg

FIELD: auxiliary devices of pipe lines; shutting-off oil pipe lines, water pipe lines and other pipe lines.

SUBSTANCE: proposed sealing device has inner chamber formed by cylindrical wall and two end-to-end walls engageable with first one; walls include inner sealing rubber envelope, outer covering rubber envelope and reinforcing framework located between them. Framework consists of layers of rubber-cord material reinforcing the cylindrical wall of chamber and separate radially directed and partially overlapped strips of rubber-cord material reinforcing the end-to-end walls of chamber. One end-to-end wall is provided with pipe union located along axis of chamber; this pipe union changes to circular disk inside chamber; it is connected with end-to-end wall through rubber interlayer. End sections of rubber-cord layers reinforcing the cylindrical wall of chamber are bent to rubber-cord strips located on end-to-end walls; they are partially overlapped on section by amount no less than 0.1 length of strip. Sections of strips overlapped by rubber-cord layers are shifted radially relative to one another by magnitude of h≥5d, where d is diameter of rubber-cord thread.

EFFECT: enhanced strength and durability of device in wide range of pipe diameters and pressures of compressed gas fed inside.

2 cl, 5 dwg

FIELD: pipeline engineering.

SUBSTANCE: rubber-cord shell comprises pressure-tight flexible cylindrical chamber with faces. One of the faces is provided with the branch pipe that is arranged along the axis of the chamber and goes into the ring disk inside the chamber. The disk is made of rubber material reinforced by cord threads. The pressure-tight cylindrical chamber is housed in the load-carrying frame that comprises cylindrical shell and the faces of the load-carrying frame connected with the shell to define lap joint with the faces of the chamber. The faces of the frame are made of the end sections of radially directed and partially overlapped along the axis of the chambers. The load-carrying frame is provided with the rubber coating layer. The load-carrying frame is multi-layer. The laps in the layers of the load-carrying frame reinforcing the cylindrical and faces sections of the cylindrical chamber are shifted one to the other in the axial direction and radial direction in the cylindrical and face section, respectively. The lap ranges from 30 mm to 250 mm. The ends bent along the axis of the chamber are arranged on the inner surface.

EFFECT: enhanced strength.

9 cl, 9 dwg

Stem seal // 2229646
The invention relates to mechanical engineering and can be used in hydraulic systems high pressure to seal the cylinders and also for sealing rotating shafts mechanisms

The invention relates to a sealing technique, in particular for sealing moving parts when using cable-container technologies, and can be used for sealing a rolling rope at the mouth of wells

Piston machine // 2227221
The invention relates to mechanical engineering and can be used to create reciprocating engines and pumps

The sealing head // 2218498
The invention relates to the field of test equipment, in particular for determining the sealing of pipes

FIELD: pipeline engineering.

SUBSTANCE: rubber-cord shell comprises pressure-tight flexible cylindrical chamber with faces. One of the faces is provided with the branch pipe that is arranged along the axis of the chamber and goes into the ring disk inside the chamber. The disk is made of rubber material reinforced by cord threads. The pressure-tight cylindrical chamber is housed in the load-carrying frame that comprises cylindrical shell and the faces of the load-carrying frame connected with the shell to define lap joint with the faces of the chamber. The faces of the frame are made of the end sections of radially directed and partially overlapped along the axis of the chambers. The load-carrying frame is provided with the rubber coating layer. The load-carrying frame is multi-layer. The laps in the layers of the load-carrying frame reinforcing the cylindrical and faces sections of the cylindrical chamber are shifted one to the other in the axial direction and radial direction in the cylindrical and face section, respectively. The lap ranges from 30 mm to 250 mm. The ends bent along the axis of the chamber are arranged on the inner surface.

EFFECT: enhanced strength.

9 cl, 9 dwg

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