2006 results about "Fluid control" patented technology

The present disclosure relates to systems, devices, and methods for automated fluid control within a cell processing system. In an embodiment, the present disclosure relates to a cartridge having a fluidic manifold comprising a first end panel, a second end panel, and a central panel connecting the first and second end panels, where each of the first and second end panels comprises a plurality of fluidic pathways model therein and a plurality of valves for controlling fluid flow through the plurality of fluidic pathways.

Disclosed herein are fluid control devices for clot treatment systems, and associated systems and methods. In some embodiments, a fluid control device can be coupled between a catheter and a pressure source and configured to selectively allow or prevent a vacuum generated within the pressure source to be applied to a lumen of the catheter. The catheter and the fluid control device can together define a lumen or fluid path to the pressure source. The lumen or fluid path can have an at least generally uniform dimension (e.g., diameter) along its length, which is expected to inhibit or even prevent choke points or other resistances to fluid flow through the fluid control device, including when used with large bore catheters.

A fluidics system includes a cassette having a saline subsystem, a contrast subsystem, and a vacuum subsystem. The fluidics system further includes a splitter and a first tubing set coupled to the cassette and splitter, the first tubing set having a single saline channel, a single contrast channel, and a single vacuum channel. The fluidics system further includes two or more hub assemblies, at least one of the two or more hub assemblies configured to have a third saline flow-path, a third contrast flow-path, and a third vacuum flow-path to provide saline, contrast and vacuum to the lumen of a catheter coupled to the at least one of the two or more hub assemblies. The fluidics system further includes a second tubing set having a plurality of tube groups, each tube group coupled to the splitter and to one of the two or more hub assemblies.

The invention relates to the technical field of fluid control, and discloses a fluid control intelligent adjusting method and system for a micro-fluidic chip, and the method comprises the steps: carrying out the data collection of a self-adaptive fluid controller, a micro-fluidic channel pressure sensor array, a temperature sensor array and a flow sensor array based on the micro-fluidic chip; obtaining real-time fluid parameter monitoring data; performing feature extraction to obtain a multi-dimensional fluid feature matrix; establishing a three-dimensional fluid model of the microfluidic channel, and solving to obtain flow field distribution data; inputting the flow field distribution data into a Kriging agent model, establishing a mapping model of channel width, depth, length and fluid control performance, and calculating to obtain an optimal geometric parameter combination; and performing multi-level calculation on the fluid pressure uniformity, the temperature distribution uniformity and the flow stability to obtain a hierarchical fluid parameter control strategy. According to the invention, the problem of multi-physics field coupling is effectively solved, the calculation complexity of the control system is reduced, and the execution efficiency of the control strategy is improved.

The present disclosure relates to systems, devices, and methods for automated fluid control within a cell processing system. In an embodiment, the present disclosure relates to a cartridge having a fluidic manifold comprising a first end panel, a second end panel, and a central panel connecting the first and second end panels, where each of the first and second end panels comprises a plurality of fluidic pathways model therein and a plurality of valves for controlling fluid flow through the plurality of fluidic pathways.

The present disclosure relates to systems, devices, and methods for automated fluid control within a cell processing system. In an embodiment, the present disclosure relates to a cartridge having a fluidic manifold comprising a first end panel, a second end panel, and a central panel connecting the first and second end panels, where each of the first and second end panels comprises a plurality of fluidic pathways model therein and a plurality of valves for controlling fluid flow through the plurality of fluidic pathways.

The present disclosure relates to systems, devices, and methods for controlling fluid flow within a cell processing system. In an embodiment, the present disclosure relates to a device having a rotor comprising one or more rollers configured to compress a first fluid conduit, a first lever arm defining a proximal portion and a distal portion, where the first lever arm comprises a first hinge at the proximal portion, and a second hinge in between the proximal portion and the distal portion, a spring coupled to the distal portion, and a second lever arm, where the first and second lever arms are aligned with the rotor and are configured to receive the first fluid conduit.

The invention discloses an electromagnetic valve engineering design optimization method, and relates to the technical field of electromagnetic valve engineering design. According to the method, boundary condition parameters are clearly designed by obtaining high-pressure fluid control demand data, and an optimization constraint condition set is established, so that the design accuracy is ensured. Designing parameters are converted into optimization variables through gene coding, a fitness function is constructed through a genetic algorithm, and a solution set is generated; in a particle swarm optimization stage, design parameters are initialized to be particles, a multi-objective optimization function is defined, and a fitness function solution set is gradually optimized by utilizing an inertia weight and a group optimal guide search direction. The performance of the electromagnetic valve is verified through finite element analysis and fluid dynamics simulation, whether the control requirement is met or not is analyzed, and design parameters are finely adjusted according to the simulation result. The problems that the electromagnetic valve is insufficient in performance and unreasonable in design in the high-pressure fluid control process are effectively solved.

The invention relates to the technical field of fluid generators, in particular to a fluid generator and a fluid control device.The fluid generator comprises a piezoelectric actuator, a spacing part and a diaphragm, and a cavity is defined by the piezoelectric actuator, the spacing part and the diaphragm; the vibration antinode position of the diaphragm and the adjacent area of the antinode position protrude out of the surface of the diaphragm to form a convex part, so that the continuity of the rigidity of the diaphragm is broken, and a rigidity sudden change is formed at the outer peripheral edge of the convex part; as the amplitude of the antinode position and the amplitude of the area, closer to the outer side of the antinode, of the area adjacent to the antinode position are not in continuous gradient distribution any more, the area, opposite to the convex part, of the diaphragm can obtain larger vibration energy to generate larger amplitude, and then the output flow is increased; in addition, since the diaphragm forms stiffness abrupt change at the peripheral edges of the convex parts, at the same time, the first hole parts arranged in the areas, opposite to the convex parts, of the diaphragm are in or tend to the air outlet stroke or the exhaust stroke at the same time, and the output flow is further improved.

The invention belongs to the technical field of fluid control, and relates to a rotary flow distribution adjusting device and method for aviation. Comprising an inlet shell, an annular impeller, a torsion spring, a valve element, a magnetic damper and an outlet shell. The flow distribution adjusting device is arranged at the pipeline branch position of a liquid pipe network branch system, fluid flows through the annular impeller, the annular impeller generates torsional force to drive the valve element to rotate to change the overflowing sections of the two outlets, continuous adjustment of the flow distribution proportion of different branches is achieved, and the larger the fluid flow speed is, the larger the stress of the annular impeller is. And the valve core is driven to select a larger angle to correspond to different outlet flow distribution conditions. According to the flow distribution adjusting device, the complexity of an adjusting system can be reduced, the flow resistance caused by flow distribution adjustment is reduced, and then the energy consumption of a power source in a liquid system is reduced.

A fluid control device includes a fluid pipe section including a fluid inlet and outlet connectable in series to a fluid pipe. A fluid valve is coupled in series within the fluid pipe section separating a fluid inlet and outlet side and controlling a fluid flow. An electric motor is mechanically connected to the fluid valve. A temperature sensor is connected to the fluid pipe section monitoring a temperature of the fluid flow. A pressure sensor is connected to the fluid pipe section monitoring a pressure of the fluid flow. A flow rate sensor is connected to the fluid pipe section monitoring a flow rate of the fluid flow. A control device processor is electrically connected to the electric motor and electrically connected to the sensors. A communication device coupled to the control device processor is for wirelessly connecting to a remotely disposed fluid monitoring and control system.

A fluid control device includes an inlet configured to be placed directly or indirectly in fluid communication with a bodily fluid source and an outlet configured to be placed in fluid communication with a fluid collection device. The fluid control device has a first state in which a negative pressure differential produced from an external source such as the fluid collection device is applied to the fluid control device to draw an initial volume of bodily fluid from the bodily fluid source, through the inlet, and into a sequestration portion of the fluid control device. The fluid control device has a second state in which (1) the sequestration portion sequesters the initial volume, and (2) the negative pressure differential draws a subsequent volume of bodily fluid, being substantially free of contaminants, from the bodily fluid source, through the fluid control device, and into the fluid collection device.

The invention relates to the technical field of concrete construction, and discloses a method for reducing the concrete spraying rebound rate and a concrete wet spraying device.The method comprises the following steps that a fluid control model based on historical guniting data is established, the model is used for performing parameter matching on the concrete guniting volume and the spraying speed, the spraying pressure and the spraying temperature of the high-speed fluid; the real-time guniting volume of the concrete wet spraying equipment is collected; and according to the guniting volume and the control model, generating fluid jet control parameters matched with the guniting volume and the control model. And through an accurate fluid control model and a real-time feedback mechanism, the concrete spraying rebound rate is effectively reduced. And an automatic spraying parameter adjusting mechanism is adopted, so that the pressure, the angle and the spraying amount of the sprayed fluid are accurately adjusted according to real-time monitoring data, and the construction efficiency and the spraying consistency are improved. And through a high-precision rebound rate monitoring system, rebound data are automatically calculated and fed back, the spraying process is optimized, concrete waste is reduced, and the resource utilization rate is increased.

A fluid connection for a hydromotive machine or fluid-control valve having a first duct and a second duct. The first duct includes a mid-portion between a first end of the first duct and a second end of the first duct that has a non-circular cross-section. A second end of the first duct is wholly within the second end of the second duct. A first end of the second duct is wholly outside of the first duct.

The invention discloses a method and system for controlling the opening degree of a pipeline flow automatic adjusting valve, and relates to the technical field of automatic control. The method comprises the steps that real-time flow data in a pipeline and real-time pressure difference data of upstream and downstream of a valve are obtained; comparing the real-time flow data with a preset target flow to obtain a flow deviation, and generating a feedforward compensation signal by a proportional-integral-differential controller according to the flow deviation and the real-time pressure difference data; the flow deviation is input into a PID controller, and a proportional-integral-differential controller generates a feedback control signal; generating a composite control signal according to a superposition result of the feed-forward compensation signal and the feedback control signal; and the electric actuating mechanism is driven to adjust the opening degree of the valve according to the compound control signal, the actual opening degree of the valve is obtained through the position sensor, and the actual opening degree is fed back to the proportional-integral-differential controller. The invention provides a brand new solution with high robustness, high precision and low maintenance cost for industrial fluid control.

A mass flow controller and methods of providing for mass flow control are provided. A mass flow controller includes a control valve configured to control flow of a fluid in a flow path. A first flow sensor detects a first set of fluid flow parameters, and a second flow sensor detects a second set of fluid flow parameters. The first and second flow sensors are of distinct flow measurement types. The mass flow controller further includes a controller configured to determine a set of first mass flow rates based on the first set of fluid flow parameters detected by the first flow sensor and calibrate the second flow sensor based on the determined set of mass flow rates of the first mass flow sensor and the second set of fluid flow parameters.

The present invention relates to the field of fluid control technology, and in particular to a fluid generating device, comprising a piezoelectrically driven actuator, a spacer and a diaphragm, wherein the diaphragm has a fixed portion and a vibrating portion, wherein the fixed portion is fixedly connected to one end of the spacer away from the actuator, and the vibration energy generated by the actuator, on the one hand, is transmitted to the diaphragm by causing pressure changes in the fluid in the chamber due to the vibration of the actuator, and more importantly, the energy is directly transmitted to the diaphragm by means of a mechanical coupling formed by the actuator and the diaphragm, thereby causing the diaphragm to vibrate, and the energy transfer efficiency is higher; in addition, by arranging a partition on the diaphragm, the partition separates the vibrating part into at least two vibration zones, and the ability of the diaphragm area opposite to the partition to resist elastic deformation when a force is applied is greater than the ability of the vibration zone to resist elastic deformation when a force is applied, and the vibration energy transmitted to the diaphragm will mainly act on the vibration zone, causing the vibration zone to generate vibrations with a larger amplitude, and the energy utilization rate is higher.

Relates to an electric control valve for semiconductor gluing equipment and an assembling method of the electric control valve. The electric control valve comprises a pre-assembled inner box which is arranged in the dustproof shell and is provided with a driving assembly and an elastic pre-tightening module in a pre-assembled mode, a sealing membrane which is provided with a semi-circular-ring-shaped arc-shaped thin film part and an inverted-cone-shaped sealing boss and is used for sealing a longitudinal valve port, and a valve seat which is arranged at the lower end of the longitudinal valve port, connected with an inlet flow channel and provided with an inner arc spherical surface. According to the electric adjusting valve, the adjusting lead screw is driven by the stepping motor to rotate so as to achieve accurate lifting motion of the diaphragm connecting shaft, the elastic pre-tightening module provides stable pre-tightening force for the diaphragm connecting shaft, and the cooling space in the dustproof shell effectively reduces the operating temperature of the stepping motor; high-precision fluid control can be achieved, and meanwhile good sealing performance and long-time use durability are achieved. The problems that in the prior art, sealing leakage occurs, a flow channel is polluted, a membrane is prone to being damaged, and environmental adaptability is poor are solved, high-precision, long-service-life and zero-pollution flow control is achieved, and the technical effect of being applied to semiconductor gluing equipment is achieved.

A fluid control system for controlling pressurized fluid within a mobile energy transfer system, the control system including a compressor configured to pressurize a fluid, an accumulator configured to store the pressurized fluid from the compressor, and a pneumatic control valve for controlling movement for a connecting arm assembly and movement of a plurality of extendable brushes. The fluid control system may include the use of an extension fluid pathway for extending the downstream components and a retraction fluid pathway for retracting the downstream components and regenerating pressure for the control system.

The invention provides an automatic stirring device in the field of fluid machinery and bioreactors, focusing on enhancing fluid control efficiency and consistency in biological cultivation processes. It utilizes a flexible channel body or reactor body to facilitate the flow of nutrient solution along specific channels (such as S-shaped flexible channels or S-shaped loop channels), designed to reduce shear forces and achieve iso-level uniform flow. A power system and monitoring and control system are employed to regulate the flow of nutrient solution and monitor cultivation conditions in real-time, thus supporting various bioprocess cultivation requirements.

A system for controlling a wheel brake on an auxiliary axle of a vehicle includes an electro-pneumatic drive axle brake control valve that deliver fluid pressure from a fluid source to a drive axle wheel brake on a drive axle of the vehicle responsive to an electronic control signal. An auxiliary axle brake control valve delivers fluid pressure from the electro-pneumatic drive axle brake control valve to an auxiliary axle wheel brake on the auxiliary axle of the vehicle responsive to a fluid pressure control signal. A fluid control signal generating valve generates the fluid pressure control signal responsive to a command to apply a steer axle wheel brake on a steer axle of the vehicle.

The invention relates to the technical field of fluid control and management, in particular to a multi-stage pressure and noise reduction regulating valve which is characterized in that a fluid channel is arranged in a valve body and comprises a fluid outlet and a fluid inlet; the valve seat comprises a multi-layer valve cylinder and a first opening, a first throttling hole is formed in the multi-layer valve cylinder, and the first throttling hole communicates with the fluid inlet; the valve cage is fixedly connected with the valve seat and comprises a multi-layer valve wall and a first through hole, one end of the first through hole is connected with the first open hole, and the multi-layer valve wall is provided with a second throttling hole communicated with the fluid outlet; the valve cover is fixedly connected with the valve body; the valve plug is slidably arranged in the cavity; the valve rod is fixedly connected with the valve plug and arranged in the second through hole in a sliding mode. The valve cylinders and the valve walls are each provided with three layers, the first throttling holes in every two adjacent valve cylinders are arranged in a staggered mode, and the second throttling holes in every two adjacent valve cages are arranged in a staggered mode. Through the multiple layers of valve cylinders and the staggered throttling holes in the valve wall, the frequency of bubble formation and collapse is reduced, and fluid noise and the erosion risk of equipment are reduced.

The invention relates to the technical field of fluid control, in particular to an air leakage valve and a fluid control device.The air leakage valve comprises a bearing plate and a valve element assembly, and the valve element assembly is provided with a flow guide plate, a middle plate, a valve plate and a bottom plate; one side of the supporting plate in the thickness direction is fixedly connected with one side, deviating from the middle plate, of the guide plate, and the valve plate is provided with a first deformation area and a second deformation area. According to the air leakage valve, the supporting plate and the guide plate, the middle plate, the valve plate and the bottom plate which form the modularized valve element assembly are all of a plate-shaped structure, so that the thinning degree of the air leakage valve is further improved; each layer of flat plate-shaped component can even be made of materials with the same or similar linear expansion coefficient, so that the problem of failure of the air leakage valve caused by poor temperature stability or temperature change is effectively solved; the flow path holes are arranged in a staggered and far-away manner, so that the sealing path is enlarged, the failure caused by poor sealing due to entry of foreign matters can be avoided, and the foreign matter interference resistance and the sealing reliability of the air leakage valve are greatly improved.

The invention discloses an axial-flow type anti-surge control valve, which relates to the technical field of industrial fluid control equipment, and adopts the technical scheme that the axial-flow type anti-surge control valve comprises a valve body, an anti-surge mechanism is arranged at one end in the valve body, the anti-surge mechanism comprises a rotating cylinder and a fan blade overturning assembly, the fan blade overturning assembly is arranged on the rotating cylinder in a sleeving manner, and the fan blade overturning assembly is arranged in the valve body; the fan blade overturning assembly comprises a plurality of fan blades, and the fan blade overturning assembly can adjust the overturning angles of the fan blades in a self-adaptive mode according to the wind pressure; a flow control inner ring is fixedly installed at the other end in the valve body and arranged at one end of the valve clack in a sleeving mode, a flow control outer ring is installed on the outer wall of the flow control inner ring in a sliding mode, a plurality of round holes are formed in the flow control inner ring and the flow control outer ring, and a connecting rod is installed between the flow control outer ring and the fan blade overturning assembly. The double mechanisms are driven to be linked by means of gas pressure change, timely response to sudden flow change is achieved, the stability of the valve is remarkably enhanced, and hysteresis and complexity of a traditional control system are avoided.

The present invention relates to the technical field of fluid control, and particularly to a fluid generating device with high-order resonance, which includes a substrate, a piezoelectric sheet, a spacer, and a diaphragm. The piezoelectric sheet and the substrate form an actuator. One end of the spacer close to the actuator is connected to the actuator, and the diaphragm is connected to the end of the spacer facing away from the actuator, so that a chamber is formed among the actuator, the groove portion, and the diaphragm. When the actuator vibrates under the excitation of an electrical signal, the vibration energy is transmitted to the diaphragm. On the one hand, the vibration of the actuator drives the fluid in the chamber to generate pressure fluctuations, and then the energy is transmitted to the diaphragm by causing the diaphragm to vibrate. More importantly, the energy is directly transmitted to the diaphragm through the mechanical coupling formed by the actuator and the diaphragm to achieve a higher flow output. At least one hole portion is respectively formed at at least two antinode positions or adjacent regions of the antinode positions of the diaphragm vibration, so that the utilization rate of the vibration energy is higher.

The invention relates to the technical field of fluid control, and discloses a split type mass flow controller calibration method, system and equipment. According to the method, a control unit, a valve unit, a detection unit and a fluid passage unit are connected through detachable interfaces through a split type modular design, and the problem that a traditional integrated structure is difficult to calibrate and maintain is solved. A flow mapping relation model is established by adopting temperature difference and pressure data, and dynamic correction is performed in combination with an environment temperature compensation coefficient, so that the detection precision is remarkably improved. Through cooperative control of a flow closed loop and a valve element displacement closed loop, precise adjustment of the opening degree of the valve is achieved, and the stability and the dynamic response performance of flow control are effectively improved. The system has the advantages of being flexible in structure, high in calibration precision and high in environmental adaptability, and is suitable for the high-precision flow control field of semiconductors, biological medicine and the like.

The invention provides a pilot operated safety valve with filtering and field testing functions, which relates to the technical field of pressure relief valves, comprises a pilot operated valve body, a main valve and a valve core, and is provided with a filtering mechanism and a flow testing mechanism. The filtering mechanism comprises a filter screen assembly and a sealing assembly movably installed in the filter screen assembly, an insertion hole communicated with the interior is formed in the side wall of the main valve and used for embedding the filter screen assembly, and the sealing assembly is automatically switched to a first state when liquid flows, blocks a gap between the filter screen assembly and the insertion hole and starts the flow testing mechanism; when the liquid stops flowing, the second state is switched, and blockage is relieved so that the filter screen assembly can be taken out and the flow testing mechanism can be closed. The flow testing mechanism is located downstream of the filter screen assembly and used for detecting the liquid flow. According to the design, integration of the filtering function and the flow testing function is achieved, operation, maintenance and testing are convenient, the sealing performance and the operation efficiency of the system are improved, and the system is suitable for fluid control and monitoring under complex working conditions.

The utility model discloses a container forming system suitable for cleaning and sterilizing a container, a clamp, a mold and the interior of the container, the clamp and the mold. The container forming system comprises a sealing mechanism, a stretching rod device, the mold, a fluid controller, a fluid recovery pipeline, a storage cylinder body and corresponding switch valves, the system can be widely applied to all implementation stages of the whole production process flow of injecting pressurized fluid into various types of preforms to form containers, and is particularly applied to equipment for hydroforming and synchronously filling the containers, and the sealing mechanism is provided with a middle channel and a one-way valve and is connected with corresponding fluid; the stretching rod device also has various corresponding stretching rod deformations, and the container, the clamp, the mold and the interior of the stretching rod device can be cleaned and sterilized through two stages, so that waste and discharge of pressurized fluid can be prevented, serious sanitation problems are avoided, and production of sterile bottles is ensured; and the liquid level of the container after hydraulic forming and synchronous filling and the influence of foam on the liquid level are effectively controlled.

A fluid control apparatus can include a housing and a drainage hose. The housing can form a chamber operable to receive at least one air vent for a cooling system such that the housing surrounds the air vent and prevents fluid exiting the air vent from passing through the housing. The drainage hose can be fluidly coupled with the housing. The drainage hose can be operable to drain fluid from the chamber of the housing to a drainage tray.

Disclosed herein are fluid control devices for clot treatment systems, and associated systems and methods. In some embodiments, a fluid control device can be coupled between a catheter and a pressure source and configured to selectively allow or prevent a vacuum generated within the pressure source to be applied to a lumen of the catheter. The catheter and the fluid control device can together define a lumen or fluid path to the pressure source. The lumen or fluid path can have an at least generally uniform dimension (e.g., diameter) along its length, which is expected to inhibit or even prevent choke points or other resistances to fluid flow through the fluid control device, including when used with large bore catheters.