69results about "Flow control without auxillary power" patented technology

Disclosed are examples of valve systems and methods of operating the respective valve systems. An example valve system may include a valve body, an inlet component, an outlet component and a valve tube. The valve body may include a first void and a second void. The inlet component may be coupled to the first void and the outlet component may be coupled to the second void. The valve tube may include a side port and may be positioned through the valve body and coupled to the first void, the inlet component, the second void, and the outlet component. Other valve system examples may include including a valve body, a first septum, a second septum, a first piston, a second piston and a tube. The disclosed methods describe the interaction of the respective components of the respective valve system example.

A flow control valve for a bathing installation. The flow control valve is configured to operate between an open state and a closed state in dependence on the applied water pressure. As water pressure increases, the valve progressively reduces flow dynamically, until flow increases to a point that the valve is placed in the closed state. The valve may be placed in the bathing installation recirculating water path downstream of a bypass path and upstream of a heat pump. By regulating water flow and pressure to the heat pump, the heat pump may be operated in a flow rate for efficient operation. The valve also prevents water pressure at a high level which may damage the heat pump.

A diaphragm-regulated capillary flow controller is disclosed including a diaphragm-regulated flow controller and a capillary flow controller connected to and in fluid communication with the diaphragm-regulated flow controller. A sampling assembly is disclosed, including the diaphragm-regulated capillary flow controller and a sampling vessel having an inlet in fluid communication with the diaphragm-regulated flow controller through the capillary flow controller. A method for sampling is disclosed, including disposing the sampling assembly in an air sampling location with the sampling vessel being evacuated, setting a flow rate of the diaphragm-regulated capillary flow controller to a rate of up to about 0.5 mL / min, opening a valve blocking fluid communication of the sampling vessel with an atmosphere to be sampled, collecting a sample for a duration of more than one week, and closing the valve.

It is provided a fluid flow control device 100 for establishing a controllable fluid communication between an external fluid reservoir 120-122 and a base pipe 102 constituting part of a production string 101, as well as a production string 101 and a method using such a fluid flow control device 100. The fluid flow control device 100 comprises a primary flow path 2 arranged inside a fluid control device housing 8, a secondary flow path 7 and a movable valve element 9 arranged at and / or within the primary flow path 2. A major portion of the length of the secondary flow path 7 extends outside the fluid control device housing 8.

A control valve (1) for selectively regulating a fluid flow from one of two sources, comprising a housing with a first inlet (11), a second inlet (12), and an outlet, a flow selection element (55) rotatable around a centre axis (A) to bring the first inlet (11) or the second inlet (12) is in fluid communication with the outlet, said flow selection element (55) comprising a flow passage (51) comprising an axial section (51a) extending a distance along the centre axis (A) for the flow passage to be connectable at a first axial position (T1) to selectively one of the inlets (11; 12) and to be connectable to the outlet at a second axial position (T2), and a differential pressure regulator (100) arranged in the housing at an axial end of the control valve (1) and comprising a throttle member (106) axially movable along the centre axis (A).

The invention relates to a pressure-independent control valve comprising a fluid inlet; a fluid outlet; a fluid path between the fluid inlet and the fluid outlet; a pressure differential control, wherein the pressure differential control comprises a chamber in fluid communication with the fluid path; and a drain. The drain comprises a drain outlet in fluid communication with the chamber and a drain closure to open and close the drain outlet. Fluid can drain from the valve when the drain outlet is open. The drain closure is movable between an open position to open the valve and a closed position to close the valve. The invention further relates to a fluid system comprising the valve with the drain, and to a method of draining the valve via the drain.

The system includes a gas capture system having a first adsorbent having a first adsorbent material and a first phase change material. The first adsorbent material is configured to adsorb unwanted gases from a gas stream during the adsorption mode. The first phase change material is configured to absorb heat during the adsorption mode to increase the capacity of the first adsorbent material for adsorbing unwanted gases.

A flow regulating device for regulating a fluid flow therethrough is disclosed, wherein the flow regulating device comprises a regulator inlet for fluid to flow into the flow regulating device, a regulator outlet for the fluid to flow out of the flow regulating device, a fluid channel extending from the regulator inlet to the regulator outlet, and a flow regulating element arranged in the fluid channel to regulate a flow rate of the fluid flowing through the regulator outlet. The flow regulating device may further comprise a flow directing mechanism arranged for inducing a vortex in the fluid around a centre axis of the fluid channel between the flow regulating element and the regulator outlet. Further, a flow regulating assembly is disclosed, comprising an outer housing enclosing the regulator housing of the flow regulating device.

A control cartridge assembly (10) for a valve (100) suitable for be motorised or actuated by an thermal head, comprises a cartridge body (12) within which a stem (14) is slidingly arranged, a linear shutter (16) attached to a first inner end of said stem (14) suitable for connection with a linear actuator in such a manner as to regulate the lift of said shutter (16), wherein said cartridge body (12) comprises at least a first pass-through radial opening (13) formed on its diametral portion; and wherein said shutter (16) comprises at least a second pass-through radial opening (18) formed on its diametral portion, said shutter (16) being coaxially and slidingly arranged in said cartridge body (10) in a telescopic manner such that an alignment in cooperation of said first radial opening (13) and said second radial opening (18) corresponds to a further opening for fluid passage. The invention also relates to a valve (100) comprises the control cartridge assembly (10).

A fluid flow regulator (10) comprising: a valve chamber (12) having a fluid inlet (14a) and a fluid outlet (14b); and a valve member (16) inside the valve chamber (12), the valve member (16) moveable inside the valve chamber (12); wherein the valve member (16) is concave in the direction of the fluid inlet and convex in the direction of the fluid outlet.

A fluid control system 10 for a pilot-operated pressure regulating valve comprises a first conduit, defining a first flow path, and a second conduit 14, defining a second flow path. The second conduit 14 is parallel to the first conduit and comprises a restriction aperture 70. A variable flow restrictor 20 within the second conduit 14 is arranged to selectively vary a cross-sectional area of the restriction aperture 70. The first conduit comprises a converging portion 48, for reducing the pressure of fluid flowing through the converging portion 48 to an intermediate pressure, and a diverging portion 54. The system 10 also includes a control fluid port 22 for connecting to a control volume of the pressure regulating valve, the control fluid port 22 being configured to receive fluid at the intermediate pressure from the first conduit. [Fig 3]

System, product and method for controlling an industrial process in a factory, the industrial process involving a flow of material, the method comprising using a hardware processor for accepting a definition and / or information regarding a route extending from a source (e.g., raw material tank) to a destination (e.g., filler), along which the material flows and / or, accordingly, automatically activating and / or de-activating material flow along the route.

An inner component assembly for a regulator can include a cage and a plug assembly. The cage can include a peripheral wall defining an opening and a plurality of cage holes formed in the peripheral wall. The plug assembly can include a plug and a sealing element and can be configured to be movably received within the opening such that the sealing element selectively contacts an inner surface of the cage to vary a flow area through the plurality of cage holes depending on a position of the plug.

The application provides a flow divider, a manufacturing method thereof, a mass flow measuring device and a mass flow control device. The flow divider comprises a cylindrical body, a plurality of flow spaces for fluid passing are formed in the cylindrical body and are distributed along the radial direction of the cylindrical body, each of the flow spaces is arranged along the circumferential direction of the cylindrical body, each of the flow spaces is formed between mutually parallel inner and outer circumferential wall surfaces, and the radial distance and effective flow area of the inner and outer circumferential wall surfaces are set to make the fluid flowing through the flow space in a laminar flow state. The scheme of the application can reduce the overall size on the basis of being applicable to large or super-large flow, thereby reducing the difficulty of production and manufacturing, debugging and calibration, installation, maintenance and the like.

It is provided a fluid flow control device 100 for establishing a controllable fluid communication between an external fluid reservoir 120-122 and a base pipe 102 constituting part of a production string 101, as well as a production string 101 and a method using such a fluid flow control device 100. The fluid flow control device 100 comprises a primary flow path 2 arranged inside a fluid control device housing 8, a secondary flow path 7 and a movable valve element 9 arranged at and / or within the primary flow path 2. The inlet of the secondary flow path 7 is arranged separate from the inlet of the primary flow path 2.

It is provided a fluid flow control device 100 for establishing a controllable fluid communication between an external fluid reservoir 120-122 and a base pipe 102 constituting part of a production string 101, as well as a production string 101 and a method using such a fluid flow control device 100. The fluid flow control device 100 comprises a primary flow path 2 arranged inside a fluid control device housing 8, a secondary flow path 7 and a movable valve element 9 arranged at and / or within the primary flow path 2. The inlet of the secondary flow path 7 is arranged separate from the inlet of the primary flow path 2.

The application relates to the heat dissipation technical field of power distribution cabinets, and particularly provides a heat dissipation structure of a power distribution cabinet, which comprises a power distribution cabinet body, a heat dissipation area is arranged in the power distribution cabinet body, a first heat dissipation fin and a plurality of electrical elements are arranged in the heat dissipation area, a water cooling circulation pipeline is arranged in the first heat dissipation fin, a second heat dissipation fin is arranged at the corresponding position of the heat dissipation area on the outer side wall of the power distribution cabinet body, a spray head is arranged outside the power distribution cabinet body, when the temperature in the power distribution cabinet exceeds a preset value (such as 80 DEG C), the spray head sprays water to the second heat dissipation fin outside the cabinet body, the temperature of the second heat dissipation fin is rapidly reduced by using the heat absorption of water evaporation, and then the heat absorption capacity of the second heat dissipation fin to the heat of the first heat dissipation fin and the water cooling circulation pipeline in the cabinet is enhanced, the problem that the heat dissipation efficiency of traditional water cooling is reduced after the water temperature rises is effectively solved, and dangerous accidents caused by high-temperature accumulation are avoided.

An internal relief valve assembly for use with a natural gas regulator having a diaphragm, a piston, a valve stem and an inlet for receiving gas. A first spring surrounds the valve stem and is centered in the diaphragm. A second spring is nested within the first spring for controlling when the internal relief valve opens. A square-ring is positioned within an opening within the valve stem. A first channel is formed in the valve stem and a second channel is formed in the valve stem which is substantively perpendicular to the valve stem and connected to the first channel to circulate the flow of gas through the valve to an outlet.

A control valve (1) for controlling flow of liquid in a heating and / or cooling installation, comprising: an elongated valve body (2,4) with opposite first- and second longitudinal ends, the first longitudinal end being provided with an inlet opening (9), a pressure regulating arrangement configured for maintaining a substantially constant differential pressure between a first pressure (P1) in the control valve (1) and a second pressure (P2) in the control valve (1), the pressure regulating arrangement comprises a movable throttle member (16) that is urged by the first pressure (P1) to increase the flow resistance posed by the pressure regulating arrangement and that is urged by a resilient member (20) and by the second pressure (P2) to decrease the flow resistance posed by the pressure regulating arrangement, the movable throttle member comprising a rolling diaphragm (16) that interacts with a plurality of exit openings (18), the rolling diaphragm (16) having a circular circumference attached to an annular body (11), the plurality of exit openings (18) being formed radially through the annular body (11), and the annular body (11) being slidably disposed in a cylindrical portion (4) of the valve housing (2) for allowing axial movement and rotational movement of the annular body (11) relative to the valve housing (2). A manifold (40) for a for heating system. The manifold comprises an elongated tubular housing (44), the housing (44) is provided with a manifold outlet (43), a plurality of sockets (42) for connection to respective return lines of circuits (I,II,III,IV) in the floor heating system, the sockets (42) having a lumen and being arranged to extend through a wall of the housing (44), a plurality of flow control valves (1), each flow control valve (1) being associated with one of the sockets (42), the flow control valves (1) comprise a pressure regulating arrangement configured for maintaining a substantially constant differential pressure between a first pressure (P1) in the control valve (1) and a second pressure (P2) in the control valve (1), the flow control valves (1) comprise an inlet in fluidic connection with the socket associated with the flow control valve (1) concerned, and at least one outlet (7) in fluidic connection with the manifold outlet (43), the flow control valves (1) comprise an elongated body (4), with a first longitudinal end sealingly engaging a socket (42) and a second longitudinal end for coupling to an actuator (48).

A method and apparatus for controlling fluid flow by receive a first and second fluid into separate pressure equalization chambers that are isolated by diaphragms. The fluid are mixed by allowing them to flow over respective dams into a mixing chamber when their respective diaphragms are deformed. The pressure to the mixing chamber is equalized to ensure proper flow from each fluid stream.

A flow restrictor for a shut-off valve of a hydraulic pumping system and a hydraulic system using such a flow restrictor. A flow restrictor is provided for restricting flow through the shut-off valve. A flow restrictor for a shut-off valve of a hydraulic pumping system includes a valve body having a hollow passage. The hollow passage has a fluid inlet and a fluid outlet, and the fluid inlet is in fluid communication with a discharge line of the shut-off valve in an installed state of the flow restrictor. A valve element is slidably disposed within the passage and may transition from a first position toward a second position if a predetermined fluid pressure threshold is exceeded at the fluid inlet. The valve element is disposed in the hollow passage such that in the second position, fluid flow from the fluid inlet to the fluid outlet is greater than fluid flow in the first position.

The present application relates to liquid distribution system. More specifically, the present application relates to a device for controlled discharge of liquid, comprising: an extendable pipe having a bottom end and a top end being extendable from a collapsed position to an extended position; a floating plate connected to the top end of the pipe and having an opening in fluid communication with the pipe and the bottom end for receiving and for discharging said liquid, the floating plate being configured to float on the surface of the liquid, and the extendable pipe is configured to extend to the extended position when an increasing level of liquid forces the plate to rise up until the extended position is reached; wherein at said extended position, the floating plate is configured to fill with liquid and collapse to reach the collapsed position whereat the liquid flows inside the pipe and through the bottom end for discharging the liquid.

A volumetric coupling (1) for guiding an airflow and enabling better measurement of said airflow, the volumetric coupling (1) comprising: - an outer frame face (13) and an inner duct face (12), wherein the faces (12, 13) define a duct (11) narrowing from the outer frame face (13) to the inner duct face (12), the volumetric coupling (1) being adapted for an airflow in a flow direction (2) along the narrowing of the duct (11); - a high-pressure chamber (24) and a low-pressure chamber (25), wherein the chambers (24, 25) at least partially envelop the duct (11); - a first set of holes (14) arranged on the outer frame face (13), the first set of holes (14) being connected to the high-pressure chamber (24); - a second set of holes (15) arranged on the inner duct face (12), the second set of holes (15) being connected to the low-pressure chamber (25); and - a first aperture (34) connected to the high-pressure chamber (24) and a second aperture (35) connected to the low-pressure chamber (25), the apertures (34,35) being configured for connection to a pressure transducer (30).

A system includes a gas capture system having a first adsorber with a first sorbent material and a first phase change material. The first sorbent material is configured to adsorb an undesirable gas from a gas flow during an adsorption mode. The first phase change material is configured to absorb heat during the adsorption mode to increase a capacity of the first sorbent material to adsorb the undesirable gas.

The application discloses a pressure negative feedback type flow synchronous controller and application, which comprises a cylinder assembly and end covers installed at two ends of the cylinder assembly, and the outer sides of the two end covers are provided with supporting legs; an oil chamber is formed in the cylinder assembly, and a piston assembly is horizontally arranged in the oil chamber; the piston assembly divides the oil chamber into two symmetrical cavities, springs are arranged in the two cavities, and the springs are sleeved on piston rods in the piston assembly; the oil chamber is divided into two cavities, and the test gearbox, the transfer oil tank and the clean oil tank are communicated, so that the synchronization of the contaminated oil liquid output and the clean oil liquid input of the test gearbox is realized; when the oil liquid pressure discharged from the gearbox fluctuates and decreases, the piston rod assembly in the oil chamber can automatically return to the middle position under the actions of the two springs and the oil pressure, and when the balance state is reached, the input and output flows of the left and right sides of the automatic controller are equal.

A control spool assembly (10) for a valve (100) adapted to be motorized or actuated by a thermal head includes a spool body (12) within which a valve stem (14) is slidably disposed, a linear shutter (16) attached to a first inner end of the valve stem (14), the linear shutter being adapted to be connected with a linear actuator for adjusting a lift of the shutter (16), and a valve element (16) adapted to be coupled to a second inner end of the valve stem (14). Wherein the spool body (12) comprises at least a first radial through opening (13) formed on a diameter portion thereof; and wherein the shutter (16) comprises at least a second radial through opening (18) formed on a diameter portion thereof, the shutter (16) being arranged coaxially and slidably in the spool body (10) in a telescoping manner such that a mating alignment of the first radial opening (13) and the second radial opening (18) corresponds to a further opening for a fluid passage. The invention further relates to a valve (100) comprising the control valve element assembly (10).

A system includes a gas capture system having a first adsorber having a first adsorbent material and a first phase change material. The first adsorbent material is configured to adsorb undesired gases from the gas stream during the adsorption mode. The first phase change material is configured to absorb heat during the adsorption mode to increase a capacity of the first adsorbent material to adsorb the undesired gas.