Patents
Literature
317 results about "Poppet valve" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
A poppet valve (also called mushroom valve) is a valve typically used to control the timing and quantity of gas or vapour flow into an engine. It consists of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The portion of the hole where the plug meets with it is called the "seat" or "valve seat". The shaft guides the plug portion by sliding through a valve guide. In exhaust applications a pressure differential helps to seal the valve and in intake valves a pressure differential helps open it. The poppet valve was most likely invented in 1833 by E.A.G. Young of the Newcastle and Frenchtown Railroad. Young patented his idea, but the Patent Office fire of 1836 destroyed all records of it.
Dynamic monitoring and self-adaptive adjusting method for pressure of high-pressure gas cylinder valve
ActiveCN121165816AFluid pressure control using electric meansAdaptive controlPressure stabilizationData set
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.
Owner:SHANGHAI QINGRAY NEW ENERGY TECHNOLOGY CO LTD
Method and system for detecting inner leakage of positive pressure helium detection valve
ActiveCN122016197ADetection of fluid at leakage pointMeasurement of fluid loss/gain rateThermodynamicsLeakage test
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.
Owner:SHANGHAI JUKE FLUID CONTROL CO LTD
Lubrication system for transmission
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.
Owner:ARVINMERITOR TECHNOLOGY LLC
Lift valve having lift drive
ActiveUS12492759B2Operating means/releasing devices for valvesMechanical engineeringElectrical and Electronics engineering
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.
Owner:GEA TUCHENHAGEN GMBH
Detection system and detection method for detecting bidirectional leakage rate of spherical sealing valve of air entraining system of airplane
ActiveCN121253084AMeasurement of fluid loss/gain rateMachine valve testingDifferential pressureRegulator
The invention relates to the technical field of sealing performance detection, and discloses a detection system and a detection method for detecting the two-way leakage rate of a spherical sealing valve of an aircraft bleed air system. The system comprises an air inlet device, a sealing device and a detection device, the gas inlet device provides clean test gas with controllable pressure; the sealing device is used for fixing the spherical sealing valve and simulating two sealing states of the spherical sealing valve in the high-pressure stage regulator to form two independent test gas paths; the detection device is connected with an outlet of the sealing device, is used for quantitatively or qualitatively detecting leaked gas and comprises a flow monitoring unit and a pressure difference monitoring unit; the sealing device can respectively test the sealing performance of the ceramic ball and the lift valve seat and the sealing performance of the ceramic ball and the valve mounting seat by replacing or adjusting the limiting structure; according to the invention, component-level bidirectional sealing performance detection is realized, the test precision and the maintenance efficiency are improved, defects can be identified before assembly, and the rework rate is reduced.
Owner:SICHUAN OUHANG TECH CO LTD
Valve rod and valve element flexible connecting structure and valve
Owner:SHANGHAI FIORENTINI GAS EQUIP
Valve end face machining tool
PendingCN121373522AOther manufacturing equipments/toolsMilling equipment detailsMachine toolMachining
The invention relates to the field of valve machining, and discloses a valve end face machining machine tool which comprises a bearing plate, a portal frame is fixedly connected to the top of the bearing plate, first lead screw guide rail sliding tables are fixedly installed on a cross beam and two stand columns of the portal frame, and second lead screw guide rail sliding tables are fixedly installed on sliding tables of the first lead screw guide rail sliding tables; a mounting frame is fixedly mounted on a sliding table of the second lead screw guide rail sliding table, a scrap iron collecting box is fixedly mounted at the top of the bearing plate, and a third lead screw guide rail sliding table is fixedly mounted at the top of the scrap iron collecting box. Automatic valve position correction and multi-specification clamping are achieved through the fixing mechanism, the machining mechanism integrates the end face cleaning function and the cutting and milling function, the scrap iron collecting box automatically collects waste, manual correction and additional cleaning equipment are not needed, the valve end face machining efficiency is improved, the machining precision is guaranteed, the machine is suitable for valves of multiple models, and the labor intensity is reduced.
Owner:YANTAI WANTONG VALVE CO LTD
A detection system and method for detecting bidirectional leakage of a spherical sealing valve of an aircraft bleed air system
ActiveCN121253084BMeasurement of fluid loss/gain rateMachine valve testingDifferential pressureRegulator
The application relates to the technical field of sealing performance detection, and discloses a detection system and a detection method for detecting bidirectional leakage of a spherical sealing valve of an aircraft bleed air system; the system comprises an air inlet device, a sealing device and a detection device; the air inlet device provides pressure-controllable and clean test gas; the sealing device is used for fixing the spherical sealing valve and simulating two sealing states of the spherical sealing valve in a high-pressure stage regulator, thereby forming two independent test gas paths; the detection device is connected to the outlet of the sealing device and is used for quantitatively or qualitatively detecting leakage gas and comprises a flow monitoring unit and a differential pressure monitoring unit; the sealing device can test the sealing performance of a ceramic ball and a poppet valve seat and the sealing performance of the ceramic ball and a valve mounting seat by replacing or adjusting a limiting structure; the application realizes component-level bidirectional sealing performance detection, improves test precision and maintenance efficiency, can identify defects before assembly, and reduces the rework rate.
Owner:SICHUAN OUHANG TECH CO LTD
A solenoid valve spool valve sleeve subassembly necking assembly device and assembly method
The application relates to a valve core valve sleeve subassembly necking assembly equipment and an assembly method, and belongs to the field of electromagnetic valve assembly. The equipment comprises a rack, a press-fitting seat, a valve sleeve subassembly feeding mechanism, a valve core subassembly feeding mechanism, an assembly mechanism and a necking mechanism. The press-fitting seat is arranged on the rack. The valve sleeve subassembly feeding mechanism is arranged on the rack and is used for feeding the valve sleeve subassembly. The valve core subassembly feeding mechanism is arranged on the rack and is used for feeding the valve core subassembly. The assembly mechanism is arranged on the rack and is used for press-fitting the valve core subassembly to the valve sleeve subassembly. The necking mechanism is arranged on the rack and is used for necking the valve sleeve subassembly. The application has the effect of improving the precision of press-fitting the valve core subassembly in the valve sleeve subassembly.
Owner:CHONGQING FORYS AUTOMATION EQUIP
Coating structure for valve stem of nuclear power plant and valve stem and method for manufacturing the same
The application discloses a coating structure of a valve rod of a nuclear power plant, a valve rod and a preparation method thereof, and the coating structure comprises a transition layer and a hydrogen-free diamond layer which are sequentially arranged from inside to outside, the microstructure of the transition layer is nanotwin, and the coating structure is uniformly covered on the surface of the valve rod. The preparation method comprises the following steps: after the valve rod is cleaned, the valve rod is subjected to plasma surface activation, the transition layer and the hydrogen-free diamond layer are sequentially deposited, and the valve rod is obtained. The coating structure of the valve rod of the nuclear power plant, the valve rod and the preparation method thereof effectively improve the hardness of the surface of the valve rod, reduce the friction loss of the valve rod, make the valve rod have good wear resistance and a reduced friction coefficient, improve the work efficiency, and further improve the service life of the valve rod, can meet the technical performance requirements of the valve rod on impact toughness, corrosion resistance and wear resistance in a high-temperature and high-pressure water environment, and effectively reduce the production cost.
Owner:SUZHOU NUCLEAR POWER RES INST CO LTD +3
Pilot-operated type pressure balance pneumatic valve
ActiveCN224033183UOperating means/releasing devices for valvesEqualizing valvesPneumatic valvePressure balance
The utility model relates to a pilot-operated type pressure balance pneumatic valve which comprises a valve body, a valve cover and a valve rod, and a valve seat is installed at the position of a valve shoulder of the valve body. The valve body is connected with the valve cover through a bolt; a through hole is formed in the center of the valve deck, the valve rod moves up and down along the through hole in the valve deck, and a sleeve is arranged on the upper portion of the valve seat and fixed in the valve body through the valve deck. A valve clack is arranged in the sleeve and moves up and down in the sleeve; a pilot valve core is arranged in the valve clack; a pressure balance disc is arranged on the top of the pilot valve element. The thrust requirements of the valve in the opening, closing, opening process, closing process and semi-opening state are greatly reduced, the opening process and the closing process only need to overcome friction of all parts and can be achieved without overcoming medium pressure, and meanwhile the medium auxiliary sealing effect in the full-closing state of the valve is reserved; while the good sealing performance is met, the opening and closing thrust of the valve is reduced, the operability of the valve is improved, and the requirement for an actuator is reduced.
Owner:HUBEI TAIHE PETROCHEM EQUIP
Piston type step locking device
ActiveCN224188039Uprevent backflowspeed up the flowLift valvePreventing unauthorised/accidental actuationFluid controlFixed frame
The utility model discloses a piston type step locking device, and particularly relates to the technical field of valves, the piston type step locking device comprises a valve body, an inlet pipe and a discharge pipe, one end of the valve body is connected with the inlet pipe, the bottom end of the valve body is provided with the discharge pipe, the valve body is connected with an opening and closing control assembly, the end portion of the valve body is provided with a sealing cover, and the top end of the valve body is provided with a fixing frame. A locking adjusting assembly is arranged on one side of the fixing frame, a locking assembly connected with the locking adjusting assembly in a sliding mode is installed on the fixing frame, a stepped through groove is formed in the valve body, and the caliber size of the inlet pipe is larger than the caliber size of the connecting position of the inlet pipe and the stepped through groove. Fluid efficiency is optimized through a step structure, double sealing is achieved in combination with an electromechanical locking mechanism, the control reliability and safety of the valve are remarkably improved, and the valve is suitable for fluid control scenes needing high sealing performance and impact resistance.
Owner:SHANXI JINDA GAS CO LTD
Pressure regulating valve with pneumatic pressure sensing assembly
The utility model discloses a pressure regulating valve with a pneumatic pressure sensing assembly, which belongs to the technical field of pressure regulating valves and comprises an inlet valve body and an outlet valve body, an inlet flow channel is arranged at the front end of the inlet valve body, a protruding arc throttling port is arranged at the tail end of the inlet flow channel, and an outlet flow channel is arranged at the rear end of the outlet valve body. A movable seat is arranged on the inner side of the inlet valve body, a fixed seat is arranged on the inner side of the outlet valve body, the center of the side, away from the fixed seat, of the movable seat is connected with a lifting valve element, the lifting valve element extends to the inlet flow channel and is fixedly connected with a valve seat in the inlet flow channel, and an inflation structure is arranged between the fixed seat and the movable seat. And the fixed seat and the movable seat are connected at the edge of the outer ring through a corrugated pipe. Through the movable base and the fixed base which are connected through the corrugated pipe, the size of the throttling opening is accurately adjusted, and balance control over the pressure of an outlet runner is achieved.
Owner:JIANGSU CHNV INSTR CONTROL ENG
Valve block assembly, braking device and running equipment
The invention discloses a valve block assembly, a braking device and running equipment, the valve block assembly is used for the braking device, the braking device comprises a main cylinder assembly, a pressure adjusting assembly, a liquid storage assembly and a control assembly, and the valve block assembly comprises a first valve body and a second valve body which are arranged in a separable mode. When the valve block assembly is in the first working state, the first end of the first valve body is suitable for being connected with the main cylinder assembly, the left end of the first valve body is suitable for being connected with the pressure adjusting assembly, the right end of the first valve body is suitable for being connected with the control assembly, and the top end of the first valve body is suitable for being connected with the liquid storage assembly. When the valve block assembly is in the second working state, the first end of the second valve body is suitable for being connected with the main cylinder assembly, the left end of the second valve body is suitable for being connected with the control assembly, the right end of the second valve body is suitable for being connected with the pressure adjusting assembly, and the top end of the second valve body is suitable for being connected with the liquid storage assembly. According to the scheme, the compatibility of the valve block assembly can be effectively improved, the production cost is saved, the internal space layout of the brake device can be optimized, and the overall space occupied volume of the brake device is reduced.
Owner:SHANGHAI VCS TECHNOLOGY CO LTD
Y-check valves, related components, and related methods
Exemplary embodiments are directed to Y-check valves, generally including a body, nut, retainer, cage subassembly, disc, and spring. The retainer, cage subassembly, disc, and spring are positioned within a barrel leg of the body, with the disc positioned within the cage subassembly. The disc is movable between a first position in which it sealingly engages a sealing surface of the cage subassembly and prevents fluid backflow through the body and a second position in which it does not sealingly engage the sealing surface and permits fluid flow through the body. The spring biases the disc into the first position. The nut, retainer, cage subassembly, disc, and spring can be provided as an insert subassembly that is removable from the barrel leg as a single unit. The disc can be provided as a poppet valve stem and plug. Methods of assembling the exemplary Y-check valves are also provided.
Owner:HAYWARD IND INC
Numerical control cutter for valve seat machining
The invention provides a numerical control tool for valve seat machining, and relates to the technical field of valve seat machining tools. The numerical control tool for valve seat machining comprises a tool body and a connecting piece, the tool body comprises a tool body and a tool bit which are coaxially and fixedly connected, a spiral channel is formed in the tool body in the axial direction, a balancing weight is arranged in the spiral channel in a sliding mode, a power assembly is coaxially arranged in a connecting pipe and a connecting cap, and the power assembly comprises a spiral column. The spiral column is inserted into the spiral channel in a sliding mode, energy generated by flutter is converted into heat energy through friction between the balancing weight and the spiral channel, the heat energy is dissipated through the cutter body, and the machining precision of the sealing face of the valve seat is improved. The length of the spiral channel is changed through displacement of the spiral column, so that the lead of the spiral channel is linked with the rotating speed of the cutter body, it is ensured that the damping direction of the balancing weight is always opposite to the flutter direction at different rotating speeds, and the device is suitable for suppressing flutter of the cutter body at different rotating speeds.
Owner:HANGZHOU HONGDA PRECISION TECH CO LTD
Valve leakage detection method, device, medium and electronic equipment
This disclosure relates to a valve leakage detection method, apparatus, medium, and electronic equipment. The method is applied to a water supply system, which includes a backup water source, valves, a main water source, a water storage device, a first variable frequency pump, and water supply pipelines. The method includes: real-time detection of the inlet pressure of the water supply pipeline; if the inlet pressure is greater than a preset pressure, repeatedly reducing the frequency of the first variable frequency pump until the backup water source's supply pressure exceeds the preset pressure; and determining whether the valve is leaking based on the change in the inlet pressure of the water supply pipeline after each frequency reduction. This allows for automatic determination of valve leakage based on the change in the inlet pressure of the water supply pipeline after each reduction in the frequency of the first variable frequency pump, facilitating timely valve repair and improving water supply stability. Furthermore, determining valve leakage based on the change in the inlet pressure of the water supply pipeline after multiple frequency reductions improves the accuracy of valve leakage detection.
Owner:GUODIAN INNER MONGOLIA ELECTRIC POWER CO LTD +1
A hydraulic control unit, a servo control mold locking hydraulic system and an injection molding machine
The application belongs to the technical field of hydraulic control systems of injection molding machines, and provides a hydraulic control unit, a servo control mold locking hydraulic system and an injection molding machine. The control unit comprises a high-frequency response servo valve, a one-way poppet valve, a two-way poppet valve and a controller. One end of the two-way poppet valve is connected to the rod cavity of a mold locking oil cylinder, and the other end is connected to a system oil tank. The controller is electrically connected to the high-frequency response servo valve, and is signal connected to a pressure sensor and a displacement sensor respectively. Compared with the prior art, the application integrates a high-frequency response servo valve, a one-way poppet valve, a two-way poppet valve and a closed-loop sensor controller to construct a high-precision hydraulic control unit, significantly improves the position repeatability and dynamic response speed of micro-opening actions, effectively meets the demand of advanced processes such as foaming injection molding and thin-wall molding for dynamic pressure adjustment of a mold cavity, and avoids problems such as uneven density of products, flash or mold damage.
Owner:NINGBO L K MASCH CO LTD
One-way valve for plunger pump
ActiveCN224017381UPositive displacement pump componentsLiquid fuel engine componentsPlunger pumpPhysics
The utility model discloses a one-way valve for a plunger pump, and relates to the technical field of one-way valves, the one-way valve for the plunger pump comprises a valve body, the inside of one end of the valve body is in threaded connection with an adjusting ring, and a pull rod is arranged inside the adjusting ring; the end, away from the adjusting ring, of the pull rod is connected with a valve element. The adjusting ring is arranged in a T shape, the protruding end of the adjusting ring is sleeved with a spring, and the spring is further sleeved with the outer side of the pull rod. The other end of the pull rod is in threaded connection with the valve core; a through hole is formed in the valve core; and one side of the valve body is in threaded connection with an oil outlet nozzle. According to the utility model, when the pre-tightening force of the spring needs to be increased, only the force application part needs to be rotated, the adjusting ring rotates along with the force application part, and the protruding part of the adjusting ring extrudes the spring to increase the compression amount of the spring, so that the opening pressure of the valve core is improved, the valve core can still work stably in a high-pressure environment, leakage is effectively prevented, and the reliability and durability of a system are further enhanced.
Owner:QILU ANTIBIOTICS PHARMA
High-speed switch valve with rotary valve element
The invention discloses a high-speed switch valve with a rotary valve element. The high-speed switch valve comprises a valve body and the valve element. The valve body is provided with a left end cover and a right end cover, the valve element is rotationally connected with the end covers, a first oil outlet, a second oil outlet, a first oil return opening, a second oil return opening and an oil inlet are formed in the valve body, and an annular groove communicated with the first oil return opening, the second oil return opening and the oil inlet is formed in the valve body; the valve element is driven by an external motor to rotate. A plurality of rectangular oil guide grooves are formed in the valve element and correspondingly communicated with the first oil outlet, the second oil outlet and the annular grooves respectively, and the rectangular oil guide grooves are matched with the first oil outlet, the second oil outlet and the annular grooves to achieve high-frequency reversing of pressure oil between the oil outlets and the oil return opening. The annular grooves communicated with the oil inlet and the oil return opening are formed in the valve body, so that the machining number of the annular grooves of the valve element is remarkably reduced, the overall strength of the valve element is remarkably improved, and the working stability of the switching valve is improved.
Owner:SINOPEC OILFIELD EQUIP CORP +1
Viscous particle slurry conveying equipment
The utility model provides viscous particle slurry conveying equipment which comprises a rack, a pumping system is arranged on the rack and comprises a main oil cylinder, a slurry cylinder is arranged at one end of the main oil cylinder, a main oil cylinder piston rod is arranged in the main oil cylinder, one end of the main oil cylinder piston rod is located in the slurry cylinder, and the end portion of the main oil cylinder piston rod is connected with a main oil cylinder piston. The slurry cylinder is connected with the stock bin chamber; the stock bin chamber is connected with the slurry suction valve chamber through the first valve seat, a first lifting valve is arranged on the slurry suction valve chamber, the stock bin chamber is connected with the slurry discharge valve chamber through the second valve seat, and a second lifting valve is arranged on the slurry discharge valve chamber. According to the scheme, the viscous particle slurry conveying equipment is provided with the lifting valve group, the valve seat can be opened or closed through movement of the valve plate, the influence of the size of material particles is avoided, the slurry suction valve port and the slurry discharge valve port of the stock bin cavity are forcibly switched, viscous slurry, mortar and slurry containing particles can be conveyed, high pressure can be achieved, and the conveying efficiency is improved. And high-efficiency long-distance conveying is realized.
Owner:HEBEI ZHUCHENG IND & MINING MASCH CO LTD
Structure of composite seal for a poppet valve pump
This utility model provides a composite seal structure for a cone valve pump, belonging to the field of control valve technology. It includes a discharge valve seat, with an inlet valve seat inserted into one side of the discharge valve seat, and a switching cylinder, spring, rear cover, and front cover inserted into the other side of the discharge valve seat. This utility model allows slurry or mine filling mortar to flow into the inlet chamber. The switching cylinder moves a small sealing ring, causing it to separate from the large sealing ring, allowing the slurry or mine filling mortar to flow into the discharge chamber within the discharge valve seat for discharge. The switching cylinder then moves the small sealing ring into the large sealing ring for sealing. When small stones become stuck between the large and small sealing rings, a sealing ring provides auxiliary sealing, achieving a better seal between the small and large sealing rings. This improves the equipment's sealing performance and reduces the risk of slurry or mine filling mortar leaking out due to small stones getting stuck.
Owner:HUNAN KIRSTONE ENVIRONMENTAL TECHNOLOGY CO LTD
Check Valve With Override
A check valve is provided with an over-ride configuration whereby a poppet located above a valve seat seals against the valve seat in a check valve configuration under the influence of at least one of gravity and fluid pressure from above the valve seat. A flow configuration occurs when pressure above the valve seat is lower than below the valve seat thereby at least assisting in pulling the poppet off the valve seat and permitting flow. An over-ride configuration exists due to foot downwardly extending from poppet through valve seat to below a lower section of the valve housing to contact a surface to thereby push the foot upwardly (and the poppet off the valve seat) so that flow could proceed in a direction normally prevented by the check valve configuration.
Owner:UNIBLOC HYGIENIC TECH UK LTD
overflow valve
An electromagnetic spill valve (100) is provided with: a pilot passage (10) facing a high-pressure passage (H) and a back pressure chamber (8); a first passage (11) communicating a discharge chamber (12) and the back pressure chamber (8); a second passage (13) provided with a throttle portion (13a), the second passage (13) communicating the pilot passage (10) and the back pressure chamber (8), and a main poppet valve (5) having: a body portion (50) unseated and seated to a suction poppet valve (3); a pilot piston (51) unseated and seated to the body portion (50), the pilot passage (10) communicating the back pressure chamber (8) and the first passage (11), the pilot piston (51) being configured to unseat from the body portion (50) and move toward a sleeve (7) in accordance with a pressure of the high-pressure passage (H), thereby throttling a flow of working fluid guided from the back pressure chamber (8) to the first passage (11) via between the pilot piston (51) and the sleeve (7).
Owner:KYB CORP
Spline transmission type multi-channel fluid distribution valve
PendingCN121876195AOperating means/releasing devices for valvesToothed gearingsHigh torqueGear train
The invention discloses a spline transmission type multi-channel fluid distribution valve which comprises a valve body, the valve body communicates with a main connecting pipe and a plurality of auxiliary connecting pipes, and a valve element is rotationally connected into the valve body and used for selectively communicating the main connecting pipe with one of the auxiliary connecting pipes through an internal flow channel; a containing groove is formed in the bottom of the valve body, a dual-mode transmission component is arranged in the containing groove and matched with the valve element in a linkage mode, large-torque and low-rotating-speed power transmission of the valve element can be achieved in a speed reduction mode, meanwhile, high-speed rotation of the valve element can be achieved in a direct drive mode, and therefore the valve element can adapt to different working conditions. The dual-mode transmission component is in linkage switching with the spline pin through the planetary gear train, high-pressure large-flow fluid can be accurately distributed in a large-torque and low-rotating-speed mode, channels can be switched in a high-precision and high-speed mode, parts do not need to be replaced to adapt to multiple working conditions, and the universality of the valve is improved.
Owner:ZHENGZHOU ZHENGYAN GENERAL MASCH TECH CO LTD
A full-automatic valve overhauling vehicle
The application relates to a valve maintenance device, in particular to a full-automatic valve maintenance vehicle, which aims to solve the problems that a large amount of manpower is consumed, the danger coefficient is high, and the valve core, the pipeline and the valve are easily damaged when the valve core of a high-pressure valve is manually maintained; the application comprises a chassis provided with wheels and driven by a driving device, a lifting mechanism installed on the chassis, and a screw plug disassembling mechanism and a valve core disassembling mechanism installed on the lifting mechanism; in the use process, the driving device drives the chassis, so that the full-automatic valve maintenance vehicle enters a maintenance station; the lifting mechanism lifts the screw plug disassembling mechanism to a specified position; the screw plug disassembling mechanism dismounts the valve screw plug; after being dismounted, the lifting mechanism lifts the valve core disassembling mechanism to a specified position, the valve core disassembling mechanism dismounts the valve core, so that maintenance and replacement are carried out, remote maintenance is realized, and the safety of the operators is protected.
Owner:XIAN AEROSPACE SAINENG AUTOMATION TECH CO LTD
Electronic expansion valve and refrigeration apparatus
ActiveCN224316474UEfficient regulation technologiesLift valveElectronic expansion valveRefrigeration plant
The utility model discloses an electronic expansion valve and refrigeration plant relates to electronic expansion valve technical field, wherein, electronic expansion valve includes valve seat, valve core and elastic sealing member, valve seat is equipped with the export, valve core is movable and is arranged in valve seat, to block or open export, valve core has the free end for with the mouth rim of export abuts, elastic sealing member is located on the free end of valve core or mouth rim. The technical scheme provided by the utility model can reduce the wear and tear of valve core and valve seat, and improve the sealing effect of valve seat opening.
Owner:GUANGDONG MEIZHI COMPRESSOR
Lift valve self-adaptive double-riding-wheel-set mechanism with anti-deflection function
The utility model discloses a lift valve self-adaption double riding wheel set mechanism with an anti-deflection function, which comprises a self-adaption double riding wheel set, the self-adaption double riding wheel set is arranged on a valve seat valve body assembly, and the valve seat valve body assembly and a valve shaft valve plate assembly are pressed and contacted to realize closing and sealing of a lift valve. In the process that the valve is pressed and opened, a valve rear shaft in the valve shaft assembly is always in close fit with the self-adaptive riding wheel set to achieve the purposes of deflection prevention and riding wheel guiding, and the self-adaptive double riding wheel set is composed of two parts including an anti-deflection flexible pressing wheel and a self-adaptive double riding wheel set. An anti-deflection flexible pressing wheel and a self-adaption double-supporting-wheel assembly are matched to form a rear supporting wheel set mechanism of the lifting valve, the anti-deflection flexible pressing wheel is installed above a valve rear shaft, the anti-deflection flexible pressing wheel is matched with a plane on the rear shaft through the pressing wheel, the self-adaption double-supporting-wheel assembly is installed below the valve rear shaft, and the rear shaft of the lifting valve is supported so that the levelness of the whole lifting valve can be kept.
Owner:TRANHOTRANHOLD ENVIRONMENTAL (BEIJING) TECH CO LTD
Valve device, manufacturing method and thermal management device
PendingCN121322714AAir-treating devicesOperating means/releasing devices for valvesHeat managementValve seat
The invention discloses a valve device, a manufacturing method and a heat management device. The valve device comprises a valve body and a valve seat assembly. The valve body comprises a valve main body and a limiting plate which are in fixed or limited connection; the valve body is provided with a containing cavity and comprises a step part, the outer diameter of the step part is larger than the inner diameter of the containing cavity, the limiting plate comprises blocking parts and an annular plate, the blocking parts protrude inwards in the radial direction of the inner circumference of the annular plate, at least two blocking parts are arranged in the circumferential direction at intervals, and a limiting cavity is formed between the blocking parts and the step part in the axial direction of the valve body. A limiting groove is formed between every two adjacent blocking parts. The valve seat assembly comprises a limiting ring, and the limiting ring comprises a small-diameter part and a large-diameter part; the outer diameter of the small-diameter part is smaller than the inner diameter of the blocking part, the outer diameter of the large-diameter part is larger than the inner diameter of the blocking part, and the inner diameter of the limiting groove is larger than the outer diameter of the large-diameter part. The large-diameter part is located in the limiting cavity and is axially limited between the step part and the blocking part; through the arrangement, the machining efficiency of the valve device is improved, and the mass of the valve device is reduced.
Owner:SHAOXING SANHUA AUTOMOTIVE THERMAL MANAGEMENT TECHNOLOGY CO LTD
Cartridge valve of coal injection gun
The utility model provides a coal injection gun ball valve which comprises a ball valve body, and a clamping groove assembly is installed at the inlet end of the ball valve body. The clamping groove assembly comprises a clamping base, one end of the clamping base is communicated with the inlet end of the marble valve body, and an annular clamping groove is machined in the other end of the clamping base. The three radial protrusions are distributed on the edge of the inner side of the annular clamping groove at equal intervals. A center hole of the clamping sleeve is communicated with the clamping seat; the three clamping jaws are distributed along the peripheral surface of the clamping sleeve at equal intervals, the clamping jaws enter the sliding rail from the guide gaps and rotate to drive the three clamping jaws to be overlapped with the three radial protrusions, axial locking of the clamping seat and the clamping sleeve and embedded connection of the three clamping jaws are achieved, and the clamping seat and the clamping sleeve are locked in the axial direction. Therefore, the contact area between the card seat and the card sleeve is increased, and the connection stability of the card seat and the card sleeve is improved.
Owner:DALIAN XINHAI TIMES MASCH EQUIP CO LTD