39results about "Flow control without auxillary power" patented technology

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.

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 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.

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 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.

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 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.

A gas flow control system for delivering a plurality of gas flows. The gas flow control system has a gas flow path extending from a gas inlet to first and second gas outlets. First and second flow restrictors are operably coupled to the gas flow path. First and second valves are operably coupled to the gas flow path such that when both first and second valves are in a fully open state, flows of gas from the first and second gas outlets are split according to the impedances of the first and second flow restrictors.

The present invention discloses a flow regulating device for regulating the flow of a fluid therethrough, the flow regulating device comprising: a regulator inlet for the fluid to flow into the flow regulating device; the regulator outlet is used for the fluid to flow out of the flow regulating device; a fluid passage extending from the regulator inlet to the regulator outlet; and a flow regulating element disposed in the fluid passage to regulate the flow of fluid flowing through the regulator outlet. The flow regulation device may also include a flow guide mechanism configured to induce a vortex in the fluid about a central axis of the fluid passage between the flow regulation element and the regulator outlet. Furthermore, a flow regulation assembly is disclosed that includes an outer housing that encloses a regulator housing of the flow regulation device.

A pressure reduction system for supplying fluid from a pressurized source to a hand operated pump, such as a pitcher pump or similar style manual pump, is disclosed. The system regulates the pressurized fluid from the source so that only the desired amount of fluid at substantially atmospheric pressure is supplied to the hand pump inlet when needed or called for by the pump.

A control valve includes a valve housing with an inlet, an outlet, and a fluid path extending therebetween. An adjustable first valve body is provided for adjusting a first flow opening of the fluid path. A first channel is debouching into the fluid path at a first location on a stream-wise first side of the first flow opening and a second channel is debouching into the fluid path at a second location on a stream-wise opposite side of the first flow opening. A measuring chamber is also provided. A second valve body is movable between two positions and provides in one position fluid communication between the first channel and the measuring chamber, and provides in a second position fluid communication between the second channel and the measuring chamber.

In a regulator, a receiving portion of a diaphragm member, which receiving portion receives a tip surface of a shaft portion of a valve element, includes, in a part thereof facing the tip surface, a concave spherical surface formed with a first radius, centered on a central axis of the shaft portion. In this regulator, the first radius is a value equal to or greater than a value obtained by subtracting 20% of the value of a diameter of the shaft portion from the value of the diameter; and the part of the tip surface that faces the concave spherical surface is a convex spherical surface formed with a second radius obtained by subtracting 2 to 5% of the value of the first radius from the value of the first radius.

A pilot amplified autonomous flow control configuration, including a flow control device having an inlet and an outlet, a pilot having an inlet connected to a source of fluid to which the device inlet is connected, the pilot comprising a first chamber having a first rotatable block, the first block having a specific gravity greater than oil and less than water, a port with a plurality of ports extending through the port wall, the first block rotating based upon density of fluid in the chamber to block some of the plurality of ports while leaving others of the plurality of ports open. A method for controlling flow in a borehole including running and allowing a configuration to self orient, and controlling flow.

The invention relates to autonomous membrane liquid purification devices with the possibility of recirculation and / or desalination of liquid, mainly water from various sources for domestic and / or drinking water supply and is intended for use in domestic conditions, public institutions, in suburban and garden areas. A membrane liquid purification device consisting of a liquid tank, a liquid withdrawal means, a pressure increasing means, a liquid purification unit, a purified liquid line and a drainage line, characterized in that it is made with the possibility of taking liquid from preferably the surface layer of liquid in a liquid tank and automatically stopping the liquid purification process when the liquid level in the liquid tank reaches a set value and / or after the required volume of liquid is purified.

This application discloses an ultra-low flow limiting device, which includes: a flow limiting seat formed as a rigid structure, an inner wall thereof forming a stepped structure, an incoming water area being formed above a top surface of the stepped structure, an outgoing water area being formed below the top surface of the stepped structure; a flow limiting plate formed as a deformable structure, forming a surface contact with the top surface of the stepped structure and covering a first flow channel; and the first flow channel formed on the top surface of the stepped structure and communicable with the incoming water area and the outgoing water area. The flow limiting plate is deformable under pressure of a fluid and partially fills the first flow channel, and the fluid flows out of the outgoing water area from the incoming water area through the first flow channel.

A sanitary valve (1) is proposed comprising a main valve (2) having a movable switching element (3) and a pilot valve (4) with which the main valve (2) can be actuated between a closed position, in which the switching element (3) rests tightly on a valve seat (5) of the main valve (2), and an open position, in which the switching element (3) is spaced apart from the valve seat (5). The pilot valve (4) can be actuated between a closed position and an open position by means of a valve plunger (6). The valve plunger (6) is immersed, at least in its closed position, in a relief opening (7) of the switching element (3) such that the valve plunger (6) is radially sealed against the switching element (3) in at least one axial section (8). A free end (9) of the valve plunger (6), in particular with a cross-sectionally reduced and / or non-circular section (10), is located within the relief opening when the valve plunger (6) is in the open position. (7)in particular within a conical axial section (11) of the relief opening (7). Furthermore, a sanitary fitting with a sanitary valve (1) according to the invention is proposed.