880 results about "Poppet valve" patented technology

The invention provides a valve actuator dispatching control method and system based on AI intelligence, and relates to the technical field of industrial automation control, and the method comprises the steps: collecting the running state parameters of a steam turbine in real time, determining the relation between the steam inlet amount and the valve opening degree under the current working condition to obtain a preliminary valve opening degree estimated value, and carrying out dynamic response compensation; the method comprises the following steps: carrying out comprehensive coupling analysis on a theoretical valve opening value and mechanical parameters such as response time, inertial parameters and an opening limit threshold value of a valve actuator, calculating a dynamic adjustment weight and carrying out boundary constraint processing to obtain a processed parameter, and calling a preset valve opening-silicon controlled trigger angle nonlinear mapping model in a single chip microcomputer based on the parameter; and calculating a final silicon controlled trigger angle by inquiring adjacent data points and a linear interpolation method. By fusing intelligent prediction, multi-dimensional adjustment and a closed-loop feedback mechanism, the valve control precision and response speed are improved, and efficient and intelligent operation of industrial automatic control is achieved.

The invention relates to the technical field of high-pressure gas cylinder control, and discloses a high-pressure gas cylinder valve pressure dynamic monitoring and self-adaptive adjusting method. The method comprises the following steps: dividing a high-pressure gas cylinder valve into a plurality of monitoring units, and obtaining pressure, temperature and flow data of each unit to form a comprehensive monitoring data set; establishing a pressure stability evaluation index and an environmental factor influence evaluation index based on the data set, and generating an initial risk value by applying a probability early warning mechanism and an adaptive prediction model; dynamically correcting the initial risk value and outputting a corrected risk value according to spatial relevance or time sequence dependency of adjacent monitoring units; and finally, the corrected risk values are sorted, a priority control instruction list is generated, and a control execution unit is combined to output a self-adaptive adjustment signal so as to adjust the opening degree of the valve. According to the method, comprehensive monitoring and dynamic adjustment of the high-pressure gas cylinder valve are achieved, and the operation stability of the valve is improved.

An insert valve installed, at least partially, in a safety valve that includes a flow port disposed on an exterior of the insert valve, a poppet configured to control a fluid flow through the flow port, a piston rod, disposed uphole from the poppet, configured to move the poppet past at least part of the flow port, where the piston rod includes an upper exposed piston area exposed to an internal volume of the insert valve, and a lower exposed piston area exposed to the internal volume of the insert valve, and a hydraulic control port configured to control movement of the piston rod.

A pressure relief valve for a two-phase immersion cooling system is configured to support fluid flow rates up to 500 cfm, 550 cfm, 600 cfm, or even 2000 cfm. This, in turn, allows the cooling system to support computing systems with a power density greater than 250 kW. This is accomplished by the valve having a relatively large passage (e.g., 2-6 inch diameter), a relatively large spring (e.g., 1.5-1.7 inch diameter), and a guide rod rigidly coupled to the poppet and slidably coupled to a guide plate. The valve may be used as an outlet valve and coupled to an adsorbent chamber to reduce the loss of coolant from the system as air is vented to an ambient environment. The valve may be used as an inlet valve and coupled to an adsorbent chamber to reduce the intake of water vapor as air from the ambient environment flows into the system.

The utility model relates to the field of valves, and provides a multi-way valve and a vehicle thermal management system. A cavity is formed in the valve body, and a plurality of connectors communicated with the cavity are formed in the surface of the valve body. The valve element is installed in the cavity, a plurality of flow channels are formed in the valve element, and the valve element is movably connected with the valve body so that the valve element can be switched between at least two different stations. When the valve element is located at different stations, at least two connectors are communicated through the flow channel. The flow channels comprise the first type of flow channels and the second type of flow channels, the first type of flow channels are located on the surface of the valve element, the second type of flow channels are located in the valve element, end openings of the second type of flow channels are located on the surface of the valve element, and the first type of flow channels are configured to be capable of communicating two adjacent connectors. And the second type of flow channels are configured to be capable of communicating two non-adjacent interfaces. The utilization rate of the space on the valve element can be increased by arranging the two layers of flow channels, and therefore the size of the multi-way valve is reduced.

The invention provides a cutting device for valve pipeline machining, and relates to the technical field of metal cutting. The cutting device for valve pipeline machining comprises a machine cabinet, two roller shaft conveyors are symmetrically arranged at the top of the machine cabinet, and angle adjusting assemblies are jointly installed between the two roller shaft conveyors and the machine cabinet; a support matched with the cabinet is arranged on one side of the outer surface of the cabinet, and three mounting frames are arranged at the bottom of the support. Through the integrated lifting type cutting assembly and the groove milling cutter on the telescopic machine box, pipeline cutting and groove forming are synchronously completed in one-time clamping, and the problem of repeated positioning caused by step-by-step machining in a traditional technology is solved. Especially for a thick-wall pipe or a high-alloy steel pipe, the coaxiality of the cutting end face and the groove machining face is ensured through cooperative clamping of the fixed roller and the wingspan type auxiliary roller, the precision of the valve pipeline butt joint face is remarkably improved, and the industrial scene with the high sealing performance requirement is met.

The invention discloses a stop valve, and relates to the field of valves. A stop valve comprises a valve seat, a valve cover, a support, a lead screw and a sealing valve column, the liquid inlet end and the liquid outlet end of the valve seat are fixedly connected with liquid conveying pipelines on the two sides through flange plates and bolts respectively, the valve cover is fixedly installed on the valve seat through bolts, the support is fixedly installed on the valve cover, the sealing valve column is arranged in the valve seat, and the lead screw is fixedly installed on the support. The lead screw is fixedly connected to the upper end of the sealing valve column, the upper end of the lead screw upwards penetrates through the valve cover, and the double-opening sleeve is rotationally connected to the support; the operation difficulty of resisting fluid pressure when the valve is opened manually is effectively reduced, the downward pressure of fluid becomes assistance during closing, a worker only needs to reversely rotate the rotating wheel to achieve smooth downward movement of the sealing valve column, operation is convenient and fast, tighter sealing can be achieved through the fluid pressure, and the reliability after the valve is closed is improved.

A nozzle includes a nozzle bayonet with a warm seal positioned at a distal end and a nose seal positioned at a proximal end so that a distal passage is defined between the warm and nose seals. The nozzle also includes a nozzle poppet valve. Purge and vent lines are in fluid communication with the distal passage. A receptacle includes a receptacle poppet valve, a receptacle inner tube and a receptacle outer tube with a receptacle insulation space defined therebetween. A coupling space is defined between an outer casing and the receptacle outer tube. The receptacle coupling space receives the nozzle bayonet. The receptacle sequentially engages the warm seal and the nose seal of the nozzle during insertion of the nozzle bayonet into the receptacle coupling space with the nozzle and receptacle poppets engaging to open the nozzle and receptacle poppet valves when the nozzle bayonet is fully inserted into the receptacle coupling space.

The invention relates to the field of valve element machining, and discloses automobile electromagnetic valve element inner hole machining equipment which comprises a shell, a partition plate is fixedly connected to the middle of the inner side of the shell, and a machining mechanism is arranged on the right side of the interior of the partition plate and used for facilitating the device to machine a valve element. A fixing mechanism is arranged on the right side of the partition plate and used for conveniently fixing the valve element, and a filtering mechanism is arranged on the lower middle portion of the inner side of the shell and used for conveniently recycling cooling liquid. The machining mechanism comprises a sliding rail, and the sliding rail is fixedly connected to the middle of the right end of the inner side of the shell. The mounting seat is fixed through the inserting rod, the first motor drives the first gear to rotate, and the rack drives the carrying table to move, so that a workpiece is sequentially milled, drilled, turned and ground on the same equipment, and the precision of a valve element can be improved while the machining efficiency is improved.

To provide a hydraulic vibration isolator having a poppet valve, which comprises a safety function for preventing damage due to overload, and can be easily replaced with an existing product without increasing the size of the existing product.SOLUTION: A poppet valve device 9 comprises a valve case 11, a valve body 13 that opens and closes a valve seat 11a opening into the valve case 11, and a spring 14 that biases the valve body 13 in an opening direction. The valve case 11 comprises: a flange part 11b that is housed in an outer case 10 communicating with an oil passage 8, slidably penetrates a relief valve seat 10a that opens into the outer case 10 to branch off and merge with the oil passage 8, and abuts against the opening peripheral edge of the relief valve seat 10a; and a relief oil passage 11c formed between a side part and an inner wall of the outer case 10 by cutting out a side part. The valve case 11 is biased by a spring 12 in a direction of closing the relief valve seat 10a. In the poppet valve device 9, excessive oil pressure causes the flange part 11b of the valve case 11 to separate from a valve seat 10a of the outer case 10, and the oil pressure is released through the relief oil passage 11c.SELECTED DRAWING: Figure 5

The anti-scouring stop valve comprises a valve body, a valve rod, a valve clack and a valve seat, an inlet channel, a middle cavity and an outlet channel which are connected are sequentially arranged in the valve body, a shaft hole communicated with the middle cavity is formed in the upper portion of the valve body, the valve rod penetrates through the shaft hole and extends into the middle cavity, and the valve clack is arranged at the inner end of the valve rod. The valve seat is mounted at the junction of the middle cavity and the outlet channel; the packing pressing plate, the packing pressing sleeve, the sealing packing, the packing pad and the sleeve are sequentially arranged on the periphery of the valve rod in a sleeving mode from top to bottom, the packing pressing plate is connected with the valve body through a bolt, the sealing packing and the packing pad are arranged in the shaft hole, the sleeve is arranged in the middle cavity, and the lower end of the sleeve abuts against the upper end of the valve seat. The outer periphery of the valve clack is attached to the inner periphery of the sleeve, and a plurality of passing openings are formed in the side portion of the sleeve in a penetrating mode. The anti-scouring capacity of the sealing surfaces of the valve clack and the valve seat is improved by reducing the flow speed of a medium reaching the sealing surfaces of the valve seat, so that the service life of the valve is prolonged.

A fluid regulator includes a poppet valve within a flow path that selectively allows a flow of fluid to move from an inlet to an outlet. A threaded regulating interface adjusts a spring tension exerted toward the poppet valve and defines a regulated flow of the fluid through the flow path. A fluid purge mechanism is positioned within the threaded regulating interface. The fluid purge mechanism operates along a rotational axis of the threaded regulating interface and adjusts a boundary of the flow path and manipulates the poppet valve to a maximum operating position to define a purging flow of the fluid. A programmable logic controller cooperates with the powered actuator and a pressure sensor to define a closed-loop interface that adjusts the regulated flow of the fluid through the flow path.

The utility model discloses a rigidity valve, which is used in the technical field of automobile air suspension systems, and structurally comprises a valve body and a valve seat connected on the valve body, the valve body comprises a valve core and an electromagnetic driving mechanism for driving the valve core to move axially, the valve seat is provided with a valve cavity and a valve port, the valve core is in clearance fit in the valve cavity, and the valve core is in clearance fit with the valve port. The valve body is used for opening or closing the valve port; the rigidity valve further comprises a diaphragm made of flexible materials, the diaphragm is fixedly connected to the valve element and connected with the valve element in a sealed mode, and the outer edge of the diaphragm is connected with the valve cavity in a sealed mode and used for preventing media in the valve cavity from entering the side, away from the valve port, of the diaphragm. The rigidity valve is good in sealing performance, long in service life and low in energy consumption, and the reliability requirement for closing or opening the valve port of the valve element can be met.

In a pressure compensation valve, a spool portion of a valve body is provided with a throttle passage that constantly communicates with a pump port. A case is provided with supply pressure communication passages to block space between the throttle passage and a load pressure chamber when a poppet portion closes space between the pump port and a cylinder port by biasing force of a load pressure spring, and that, meanwhile, communicate between the throttle passage and the load pressure chamber via a throttle hole when the spool portion moves in an opening direction by a predetermined stroke. A lead-out pressure chamber that presses the poppet portion in a closing direction in a case where an internal pressure increases is provided between the poppet portion and the case, and a lead-out pressure passage that constantly communicates with the cylinder port is connected to the lead-out pressure chamber.

The invention discloses a grouting filling pump, and belongs to the technical field of grouting pumps, the grouting filling pump comprises at least four oil cylinder valve groups and pistons with moving strokes in the oil cylinder valve groups, and the pistons in the oil cylinder valve groups have a propelling state, a retreating state and a transition state between the propelling state and the retreating state; at any moment, at least two pistons are in a propelling state and a returning state respectively; the lifting valve is communicated with the oil cylinder valve groups, and the lifting valve controls opening and closing of a valve seat of the lifting valve through a valve clack. In the oil cylinder valve group, each piston is continuously switched in three stroke states, and at any moment, pistons distributed in different states, particularly pistons distributed in a propelling state and a returning state, exist in the whole oil cylinder valve group system, so that a slurry feeding action and a slurry discharging action exist in the whole pumping system at each moment; and the continuity of the slurry feeding and grouting process of the lifting valve can be ensured.

The utility model provides a scheme of a three-plunger digital displacement pump based on a dynamic coupling actuating valve, which comprises three groups of flow distribution units, and each group of flow distribution units comprises a reciprocating plunger and two high-speed switch valves. The plungers are connected to the crankshaft through the connecting rods, in the rotating process of the crankshaft, the 120-degree phase difference is kept between the plungers, electrical energy consumption and throttling loss in the control process can be reduced, and the multi-plunger digital displacement pump can be expanded in the crankshaft direction according to requirements. The valve element of the check cartridge valve structure is lighter, and the switch valve has higher rated flow. The topological structure of the coupling iron core can significantly improve the transient mechanical property of the dynamic coupling actuator, and significantly reduces the operation time of the switching valve. A dynamic sealing system is converted into a static sealing system through the thin film sealing structure, the situation that magnetorheological fluid leaks and pollutes a hydraulic oil way can be completely avoided, and the motion resistance of the system is reduced.

A gas injection valve in an oil production column which guarantees the gas lift operation, providing secure closure, with greater reliability in the safety conditions of the integrated sets of safety barriers, enabling sensors to be integrated for monitoring the status of the gas lift valve.

The invention discloses an anti-jamming communicating pipe butterfly valve assembly for steam condenser cylinder cutting, which relates to the technical field of valves and comprises a valve body, a motor, a valve shaft, a valve plate, a bearing and an oil outlet assembly. The motor drives the valve shaft to rotate through the driving seat to drive the valve plate to adjust the opening and closing angle, and the valve plate is matched with the inner diameter of the valve body to optimize fluid control. Symmetrical bearings support the valve shaft to reduce friction; the oil outlet assembly converts rotation of the valve shaft into intermittent extrusion on the oil storage cavity through the linkage mechanism, lubricating oil is accurately injected into the bearing outer ring through the oil discharging channel, and automatic oil supplementing is achieved. The design solves the problem of period lag of traditional manual lubrication, ensures long-acting lubrication of the bearing, reduces abrasion and jamming risks, and is particularly suitable for harsh working conditions of high-temperature, high-pressure and high-frequency opening and closing. The valve is compact in structure, integrates fluid resistance optimization and intelligent lubrication functions, has the characteristics of high sealing performance and high temperature resistance, and effectively improves the operation reliability and prolongs the service life of the valve.

The double-eccentric butterfly valve comprises a valve body, a valve rod, a butterfly plate and a valve seat, an upper shaft hole and a lower shaft hole are formed in the upper end and the lower end of the valve body respectively, the valve rod sequentially penetrates through the upper shaft hole and the lower shaft hole, the portion, located in an inner cavity of the valve body, of the valve rod is in linkage connection with the butterfly plate, and the valve seat is made of elastic materials. The valve seat is installed on the inner wall of the valve body and used for abutting against the butterfly plate to form sealing fit when the valve is closed. The butterfly plate comprises a mounting main body, a sealing ring, a first linkage assembly and a second linkage assembly; when the valve is opened, the valve rod drives the sealing ring to move towards the direction close to the installation body through the first linkage assembly so that the sealing ring can be rapidly separated from the valve seat, and when the valve is closed, the valve rod drives the sealing ring to move towards the direction away from the installation body through the second linkage assembly so that the sealing ring can rapidly abut against the valve seat. The butterfly plate can be quickly separated from or abut against the floating valve seat at the moment of opening and closing the valve, so that abrasion of a valve sealing pair is reduced, and the service life of the valve is remarkably prolonged.

The invention provides a method and system for detecting inner leakage of a positive pressure helium detection valve, and relates to the technical field of valve sealing performance detection.The method comprises the steps that test gas with rated working pressure is applied to a to-be-detected valve, the change of the internal pressure of the valve is monitored in real time under the rated working pressure, and positive pressure inner leakage pre-detection is conducted; if the pressure is kept stable, a judgment result of passing the pre-detection is obtained, and if the pressure fluctuation exceeds a set threshold value, the test is terminated and an alarm signal is sent out; and based on the judgment result of the pre-detection, in the process of continuously applying the test gas, controlling the temperature condition of the to-be-tested valve, repeatedly executing the positive pressure inner leakage test at different temperatures, and recording the basic leakage rate at each temperature point to obtain an initial dynamic sealing performance curve. According to the invention, accurate correction and multi-dimensional data fusion of valve leakage rate detection data can be realized, and the accuracy of inner leakage detection of the valve under a temperature alternating working condition is improved.

A compression head (100) for a homogenizing apparatus, the compression head (100) comprising: - at least two interconnected solid units (101, 102) defining at least one interface (103); - a valve assembly (1) arranged in a groove (104) which is obtained at the interface (103) and which is delimited by surfaces (105, 106) of the solid units (101, 102), the valve assembly (1) comprising a ball check valve or poppet (2) and a valve seat (3) configured to receive the ball check valve or poppet (2), wherein the valve seat (3) consists of a hollow body (4) with a rotational symmetry which is fitted in the groove (104), the hollow body (4) being made of a metal or a metal alloy or a ceramic material, and comprising: - a core (41) having a cylindrical shape; - a first end portion (42) and a second end portion (43) respectively originating on opposite sides of the core (41), the first end portion (42) being configured to receive the ball check valve or poppet (2).

The invention relates to the technical field of valves, and discloses a valve element and water equipment, the valve element comprises a shell, a valve body assembly and a sealing ring, the shell is internally provided with a containing space, a mounting opening, a water inlet and a water outlet, and the mounting opening, the water inlet and the water outlet all communicate with the containing space; the shell is provided with an abutting surface between the mounting opening and the accommodating space; the valve body assembly is movably arranged in the containing space and used for opening or shielding the water inlet. The valve body assembly is provided with an annular mounting groove, a drainage hole and a mounting surface opposite to the abutting surface, and the annular mounting groove is concavely formed in the mounting surface; the sealing ring is arranged in the annular mounting groove in a sealing mode and abuts against the abutting face, a first annular groove is formed in the sealing ring in a surrounding mode, and the drainage hole communicates with the first annular groove and the containing space; the sealing ring, the abutting surface and the mounting surface are matched to form a second annular groove; the sealing ring is configured to abut against the abutting face under the pressure effect of liquid in the first annular groove and the second annular groove, and therefore the sealing effect between the valve body assembly and the shell can be improved.

A connector, comprising: a connector body (10); a socket body (38), the socket body being configured to slide axially relative to the connector body (10); a piston (84), the piston being configured to slide axially relative to the socket body (38) and the connector body (10); a poppet valve (102), the poppet valve comprising a first end and a second end, the first end of the poppet valve (102) being coaxially positioned within the first end of the piston (84) and abutting against the first end, the poppet valve being configured to slide axially relative to the piston (84); and a poppet valve pin (104) comprising a first end and a second end, the poppet valve pin (104) being coaxially positioned within the poppet valve (102), the poppet valve pin (104) being configured to slide axially relative to the poppet valve (102).

The present invention provides a sealing structure for a high-pressure hydrogen storage container, which relates to the technical field of high-pressure hydrogen storage containers. The structure includes a plastic liner, a valve seat core and a valve seat sleeve; the valve seat sleeve is sleeved on the valve seat core, and the valve seat sleeve is threadedly connected to the valve seat core, and an injection molding cavity is formed between the lower part of the valve seat sleeve and the lower part of the valve seat core; at least one exhaust hole is provided on the valve seat sleeve; at least one core body annular groove is provided on the outer peripheral wall of the lower part of the valve seat core; at least one sleeve annular groove is provided on the inner peripheral wall of the lower part of the valve seat sleeve; the core body annular groove and the sleeve annular groove are arranged in sequence along the axial direction; the core skirt of the lower part of the valve seat core is provided with multiple sections of inner circle through holes and outer circle through holes that penetrate the valve seat core at intervals along the circumferential direction. The advantage of the present invention is that a better sealing effect is formed between the lifting valve seat and the plastic liner, ensuring that the sealing of the hydrogen storage container is guaranteed during long-term use.

A method of lubricating a transmission system including: scavenging, via a lubrication tube of a lubrication system disposed within the transmission system, oil from at least one of a plurality of gears; directing the scavenged oil from the lubrication tube to a plurality of oil conduits extending from the lubrication tube; and translating a shift assembly in a longitudinal direction such that the shift assembly actuates a plurality of poppet valve assemblies disposed in the plurality of oil conduits between a closed position and an open position. The scavenged oil circumventing the plurality of poppet valve assemblies in the open position and the plurality of poppet valve assemblies form a seal with the plurality of oil conduits in the closed position.

A valve includes a body, an inlet configured to receive a pressurized gas, an outlet configured to receive the pressurized gas from the inlet, and a region configured to receive the pressurized gas from the inlet. The valve further includes a plug having a longitudinal axis and configured to be controllably moved within the body along the longitudinal axis. The plug is movable between a sealed position and at least one non-sealed position. The plug in the sealed position forms a first seal and a second seal with the body, the first seal between the inlet and the outlet and the second seal between the inlet and the region. The plug in the sealed position is biased towards the sealed position by the pressurized gas. The plug in the at least one non-sealed position is biased away from the sealed position by the pressurized gas.

An accumulator assembly includes a medium pressure accumulator, having an MPA cavity including a brake-side passage and a pump-side passage. A nonpowered MPA fill valve is interposed fluidically between the pump-side passage of the MPA cavity and a source of pressurized hydraulic fluid. An MPA fill valve seat is located along an MPA fill valve fluid path. An MPA fill valve poppet is configured for reciprocal motion between a poppet rest position and a poppet closed position wherein an MPA fill valve poppet shoulder contacts the MPA fill valve seat to occlude fluid flow therepast. A powered MPA one-way valve is interposed fluidically between the brake-side passage and at least one corresponding wheel brake.

Disclosed is a damping force variable valve assembly capable of improving linearity of a damping force through pressure control by being provided as a poppet type built in a shock absorber and by improving the responsiveness so that a check valve responds and opens quickly by a minimum load.

The present invention relates to a nitrogen spring loading force type pressure reducing valve and its preset adjustment device, wherein the valve core comprises: an upper core, a threaded air charging channel is arranged at the top; a connecting gasket is arranged at the inner circumference of the bottom of the upper core; a bellows, a first end of which is fixed to the bottom of the upper core and the connecting gasket; a lower core, a top of which is connected to the second end of the bellows circumferentially, and an air chamber is formed between the upper core, the bellows and the lower core; a guide sleeve is arranged at the middle of the lower core, a sliding elastic structure movably connected to the threaded air charging channel is arranged in the guide sleeve, and an air path connected to the threaded air charging channel is arranged at the lower part of the guide sleeve to fill nitrogen into the air chamber; a valve stem is arranged at the bottom of the lower core, and a lifting valve core is arranged at the bottom of the valve stem. And, an air charging control structure, the output end of which is connected to the threaded air charging channel, the upper part of the upper base is provided with an air charging control structure, and a spherical accommodating cavity is provided between the upper base and the lower base for accommodating the valve core, completely simulating the environment of a spherical pressure reducing valve.

A lift valve having a valve housing and a stroke drive is described. The stroke drive includes a drive rod that can be moved along a stroke axis into a first and a second end position. A measuring apparatus is coupled to the stroke drive on a side of the stroke drive facing away from the valve housing and includes a first sensor, a second sensor, and a first transducer. The first transducer is arranged to follow the movement of the drive rod and is arranged on a sensor rod arranged in an end region of the drive rod. To achieve a compact and safe design, a second transducer is arranged to follow the movement of the drive rod, the first sensor is arranged between the second sensor and the stroke drive. The first sensor is excited by the second transducer, which is arranged on a side of the first transducer facing the drive rod, when the drive rod is in the second end position.