Abstract: A vane assembly may be configured to mechanically couple to a first air mover and a second air mover, and the vane assembly may include a first set of one or more vanes configured to be proximate to the first air mover when the vane assembly is mechanically coupled to the first air mover and the second air mover and a second set of one or more vanes configured to be proximate to the second air mover when the vane assembly is mechanically coupled to the first air mover and the second air mover.

Abstract: According to some embodiments of the present invention, there are provided a flowing water channel device, comprising, a tubular conduit made of fluid impervious material and at least one slit extending along a longitudinal axis of the tubular conduit, a first and a second marginal edge of the tubular conduit are opposing to one another, and at least one fluid permeable sheet material layer passing via the at least one slit and having a first marginal portion spread within the tubular conduit along the longitudinal axis and a second marginal portion spread outside of the tubular conduit along the longitudinal axis.

Abstract: A drying apparatus includes a compartment for containing objects to be dried, a closed-loop air pathway and a regeneration heat exchanger. The closed-loop air pathway includes a cooling element and a heating element, and is configured to extract from the compartment air that includes moisture in the form of vapor, to evacuate heat energy from the extracted air to an external fluid flow by cooling using the cooling element so as to remove at least some of the moisture from the air, to reheat the air using the heating element, and to re-introduce the reheated air into the compartment. The regeneration heat exchanger is inserted in the closed-loop air pathway and is configured to transfer heat from the air extracted from the compartment to the air exiting the cooling element in the closed-loop air pathway.

Abstract: A pressure balanced solenoid operated valve includes a solenoid portion having a coil. A valve member portion is connected to the solenoid portion. The valve member portion has a body including: first and second valve seats; a first cavity positioned between the first valve seat and a valve outlet port. A valve member slidably disposed in the body has a resilient valve element positioned between the first and second valve seats, the resilient valve element when in direct contact with the first valve seat defining a valve closed position. A bleed port created in the body between the first valve seat and the valve outlet port and opening into the first cavity provides a flow path for a pressurized fluid present at the second valve seat in the valve closed position to continuously flow out through the valve outlet port.

Abstract: An apparatus is supplied for a self adjusting regulator suited for an irrigation emitter. A curved flow channel is integrated into a concave dome shaped surface. A deformable member deforms to approach the surface to adjust the resistance to flow. The concave dome shaped surface may match a deformed shape of the membrane. Irregularities in the interface between the surface and the deformable member are configured to achieve a desired discharge under varying flow conditions. The deformable member may activate an inlet filter cleaner by pushing a ram and thereby unclogging the filter.

Abstract: A valve comprising a valve body with a fluid inlet, a fluid outlet, an inner cavity and an outer cavity at least partly surrounding the inner cavity. The outer cavity is in fluid communication with the fluid inlet and with the inner cavity and the inner cavity is in fluid communication with the fluid outlet. A flow splitter is provided, forming at least two flow passages in the outer cavity.

Abstract: Structures and methods are provided for improving the distribution of fluids between exit flows from a split junction, such as a tee-junction. The improved distribution of fluids can result in a more equal distribution of both gases and liquids between the exits of the junction. The improvement can be provided by using a baffle structure, such as an annular baffle structure, upstream from the desired junction. The baffle structures can improve the distribution of fluids in the exit flows in various manners, such as by reducing the amount of vorticity or “swirl” in the input flow to the junction or by reducing the separation of gases from liquids within a flow.

Abstract: An apparatus for indicating a leak in a beverage dispensing system and sealing a leak in a beverage dispensing system includes a deactivating means including a channel, a sealing ball, a sealing element and a reset means. The sealing ball and sealing element are located within the channel. When a leak is present, the sealing ball is moved from its resting position. Once the leak reaches a predetermined level, the sealing ball is pressed against the sealing element by the force of the gas in the chamber. This seals the chamber and prevents further gas flow through the system.

Abstract: A gas manifold system includes a plenum that receives a gas at a positive pressure and a manifold having at least one exit port. One or more valves are disposed between the plenum and the manifold. When opened, the valve(s) permit a stream of the gas at positive pressure to flow from the plenum into the manifold. A baffle is disposed in the manifold between the valve(s) and the exit port(s). The baffle obstructs each stream of gas entering the manifold such that the gas is reduced to substantially zero pressure in the manifold at the exit port(s).

Abstract: A fluid controller apparatus controls fluid flow, such as a solvent gradient flow, in a chromatography system. An apparatus includes a fluid-gradient controller having a fluid reservoir for containing a pump fluid and a pumping device connected to the fluid reservoir for receiving the pump fluid. The pumping device is in fluid communication with parallel-configured first and second solvent lines. The first and second solvent lines each contain a restrictor element and a solvent reservoir. During operation, the pumping device causes the pump fluid to flow through the first and second solvent lines in relation to their respective restriction devices. The pump fluid displaces solvent within the solvent reservoirs. The displaced solvent is mixed to form a solvent gradient.

Abstract: The present invention relates to a connection fitting for the connection of a ring with at least one consumer to a storey or rising main branch with inlet and outlet openings (2, 4) which can be connected to the branch and an intervening merge opening (34) for the ring main which is preceded in the flow direction (S) by a cross-section constriction (16). The present invention also relates to a water pipe system with at least one storey or rising main branch to which several ring mains are connected via separation and merge openings and a cross-section constriction provided between the separation and merge openings of the assigned ring main in the branch. The object of the present invention is to specify a connection fitting which leads to improved flow characteristics in the region of the ring main assigned to the connection fitting and to provide a water pipe system which fulfills the practical requirements in an improved manner.

Abstract: A flow rate ratio variable type fluid supply apparatus includes a flow rate control system supplying gas of flow rate Q that is diverted to first flow diverting pipe passage and second flow diverting pipe passage with prescribed flow rates Q1/Q0 so gas is supplied to a chamber, and a first orifice having opening area S1 is installed on the first flow diverting passage, and the second flow diverting passage is connected to a plurality of branch pipe passages connected in parallel, orifices having opening area installed on the branch passages, and open/close valves installed on all, or some of, the branch passages so gas is diverted to flow diverting passages with flow rate ratio Q1/Q0 equivalent to the ratio of the first orifice and the total opening area S2o of flow passable orifices of the second flow diverting passage by regulating total opening area of the flow passable orifices.

Abstract: A valve unit for adjusting gas flow to a combustion apparatus includes a valve member that moves relative to a valve seat in response to a signal input to a coil, for varying a high-capacity gas flow rate through the valve unit. The valve unit includes a first opening port, a second opening port that is smaller than the first opening port, and a closure member. The closure member is movable between an open position, in which said high-capacity gas flow rate is communicated via the first and second opening ports to an outlet, and a closed position against the first opening port, in which a low-capacity gas flow rate is communicated via only the second opening port to the outlet. The valve unit includes a solenoid for selectively moving the closure member between the open position and closed position to selectively establish a high-capacity gas flow rate or low capacity gas flow rate.

Abstract: A flow sensor includes a main flow body, a laminar flow element, a first main flow body sensor tap, a second main flow body sensor tap, and a bypass flow body. The bypass flow body is coupled to the main flow body and has a first bypass flow port, a second bypass flow port, and a bypass flow channel between the first and second bypass flow ports. The flow restrictor is disposed within the bypass flow channel.

Abstract: A device (100, 200, 200bis, 300, 300bis) for controlling a pilot pressure signal of hydraulic valves (3), for controlling the handling of gravitational loads (M), operating between two pilot lines (108, 109, 208, 209, 308, 309) between the valve (3) and a cylinder (1) adapted to sustain the load (M). The device (100, 200, 200bis, 300, 300bis) is a two-way and two-position valve for the communication between the cylinder stem-side pilot line (5) and the valve-side line (3) and is a valve which can take an open position and a partialized position, or anyway it never takes a closed position. The device (100, 200, 200bis, 300, 300bis) can take a position so that the fluid passage between the pilot lines (108, 109, 208, 209, 308, 309) is never completely closed.

Abstract: A valve device for a hydraulic circuit (10) divides the incoming volume flow into at least two pre-determined partial flows for supplying hydraulic consumers (V1, V2) of the circuit (10) and has at least one pressure balance (16) and at least one orifice. Since the orifice is embodied as a variable orifice (32) controllable by a proportional magnet (34), the opening area of the orifice varies. A flow regulator is then realized and can switch the regulated volume flow and/or proportionally adjust the regulated volume flow in a defined manner.

Abstract: The water tap has a tap stand, an outlet section and a storage frame. The tap stand is hollow and has a bottom end, an inlet and a flowing channel. The inlet is formed through the bottom end of the tap stand. The flowing channel is formed through the tap stand and communicating with the inlet of the tap stand. The outlet section is mounted on the tap stand and has an outfall communicating with the flowing channels. The storage frame is mounted on the tap stand and has a storage plank and a storage hole to hold the a rinsing cup or put on the other toiletries like a toothpaste, a toothbrush or a hand washing cream in order to keep the sink clean and use convenient.

Abstract: A flow modulator to control the flow of an aerosol to an aerosol detection and/or monitoring system and other aerosol flow systems includes a chamber having an inlet and an outlet, a diverging section of the chamber beneath the inlet that has a flow divider at the center to divide the aerosol into fractions, a recirculation section in which the divided aerosol fractions are recombined, and a converging section that channels the recombined aerosol fractions to the outlet of the chamber.

Abstract: The water tap has a tap stand and a storage frame. The tap stand is has a flowing channel formed through the tap stand. The storage frame is mounted on the tap stand and has a flowing groove and a storage hole. The flowing groove is annular and formed in a top surface of the storage frame and communicates with the flowing channel of the tap stand. The storage hole is formed through the storage frame to provide a storage function.

Abstract: An air intake device for an engine is provided in which a bypass valve (V) is formed from a tubular valve chamber (15) having its interior opening on the upstream side of a bypass (20) and having an inner face with a metering hole (16) opening toward the downstream side of the bypass (20), and a valve body (25) that is slidably but non-rotatably fitted into the valve chamber (15) and that opens and closes the metering hole (16), wherein the valve chamber (15) and the metering hole (16) are formed in a bypass valve holder (10) provided so as to be connected to a throttle body (1), and a dividing wall (17) that divides the metering hole (16) into a plurality of small metering holes (16a, 16b) arranged in the peripheral direction of the valve chamber (15) is formed in the bypass valve holder (10) so as to be continuous with an inner peripheral face of the valve chamber (15). This can prevent any hindrance to the closing movement of the valve body of the bypass valve even when a large metering hole is employed.

Abstract: A decompression apparatus has an exhaust mechanism for decompressing a vacuum chamber. The exhaust mechanism has a main exhaust passage one end of which is connected to the vacuum chamber and the other end of which is connected to a vacuum pump, a first valve disposed in the main exhaust passage; a slow exhaust passage one end of which is connected to the vacuum chamber directly or via part of the main exhaust passage and the other end of which is connected to the vacuum pump directly or via part of the main exhaust passage, a cylindrical inorganic porous body disposed in the slow exhaust passage so that a gap is formed between the inorganic porous body and the inner surface of the slow exhaust passage, and a second valve disposed in the slow exhaust passage.

Abstract: A pipeline flow meter orifice fitting includes a first body, a flow bore through the first body, a chamber in the first body adjacent to the flow bore, an orifice plate supported in alignment with the flow bore by an orifice plate carrier, wherein the orifice plate carrier is exposed to the chamber and divides the flow bore into a first region to one side of the orifice plate and a second region to the other side of the orifice plate, a second body coupled to said first body, a first flow path fluidicly coupling the first region and the chamber through the second body, and a second flow path fluidicly coupling the second region and the chamber through the second body. In some embodiments, a three way valve is mounted on the first body, the three way valve selectably actuatable to open a first flow path between the first region and the chamber or a second flow path between the second region and the chamber.

Abstract: A flow modulator to control the flow of an aerosol to an aerosol detection and/or monitoring system and other aerosol flow systems includes a chamber having an inlet and an outlet, a diverging section of the chamber beneath the inlet that has a flow divider at the center to divide the aerosol into fractions, a recirculation section in which the divided aerosol fractions are recombined, and a converging section that channels the recombined aerosol fractions to the outlet of the chamber.

Abstract: A flow control valve is provided that comprises a valve housing having an inlet, an outlet, and a valve chamber that includes a first valve port opening in communication with the inlet and a second valve port opening in communication with the outlet. The various embodiments further comprise a modulating member having first and second tapered arcuate slots therein, which is disposed in the valve chamber approximate the first valve port opening and second valve port opening. The modulating member is rotatable to adjustably position a wider or narrower portion of both the first tapered arcuate slot and second tapered arcuate slot over the first valve port opening and second valve port opening respectively, to adjustably vary the rate of fluid flow through the valve.

Abstract: A fuel vapor recovery system of a vehicle has a fill pipe inlet assembly located at a distal end of a fuel tank fill pipe. The inlet assembly has a cylindrical wall defining an elongated cavity divided axially into upstream and downstream regions by a restrictor plate which carries a hole for close receipt of a fuel supply nozzle of a remote fuel pump. During refueling of the tank, fuel vapor flows from the tank via a recirculation tube and into the inlet cavity of the fill pipe to become entrained into the flowing liquid fuel as oppose to being released to atmosphere. The fuel vapor enters the upstream region at an aperture carried by the wall disposed immediately upstream from the restrictor plate and downstream from a hood. The hood limits vapor release to atmosphere and draws the vapor downstream through a port carried by the restrictor plate for entrainment of vapor into the liquid fuel in the downstream region.

Abstract: A coupling having, among other things, a body including a valve movable from a first position to a second position. The valve has an oxygen passageway in communication with a first inlet for a flow of oxygen to the oxygen passageway when the valve is in the first position. The valve has a second inlet for a flow of oxygen to the oxygen passageway when the valve is in the second position.

Abstract: In one preferred embodiment, the present invention includes a valve having a glue diverter to divert or prevent glue from blocking a solenoid discharge passage and thereby ensure operation of the valve. The discharge passage terminates in a protruding area, spaced away from a surrounding area so as to allow excess glue within the valve to travel around the discharge passage.

Abstract: The flow conditioner for a fluid transport pipe, comprises a support-forming substantially tubular main body, at least one flow rectifier disposed inside the main body essentially perpendicularly to the axis XX? thereof, and a porous plate disposed inside the main body upstream from the flow rectifier and parallel thereto. The elements of the conditioner are disposed in such a manner that a substantial fraction of the fluid flow passes through the flow rectifier and the porous plate in the absence of the porous plate becoming clogged. A bypass circuit is provided to ensure fluid flow continuity in the event of the porous plate becoming clogged.

Abstract: A first expression of a flow-control valve assembly includes a valve body and a resilient flow control positioned in the valve body. The valve body has a valve seat including a radially-inner valve seat portion, a radially-outer valve seat portion and a bypass-flow-channel exit located between the two seat portions. The flow control has a top surface, a bottom surface, and a through passage. The bottom surface is spaced apart from the radially-inner valve seat portion under a lower fluid pressure against the top surface exposing the bypass-flow-channel exit. The bottom surface seats against the radially-inner valve seat portion under a higher fluid pressure blocking the bypass-flow-channel exit. A second expression of a flow-control valve assembly includes a valve body having a bypass-flow-channel exit and includes a resilient flow control which has a substantially-constant-diameter outer cylindrical surface and which has a bottom surface devoid of any protrusion.

Abstract: A safety valve system includes a control valve connected to a gas meter and intersecting a gas flow path downstream of the gas meter and upstream of an entry point of a building. The control valve is adaptable between open and closed positions based upon received stimuli. A main gas supply line is mated to the control valve and includes auxiliary lines branching to appliances. A plurality of sensors are coupled in series to the appliances and are in communication with the control valve. A mechanism is included for transmitting a control signal to the control valve and for eliminating a fully charged gas line when the stimuli are detected by one of the sensors such that the control valve can allow and restrict gas flow to the appliances during operating and non-operating modes. Each of the sensors generates a unique control signal when the stimuli are detected.

Abstract: An electro-mechanical variable fluid flow restrictor includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting an electronically controlled variable bias against the deformable seal. The seal surface includes channels formed in its surface that extend beneath the deformable seal. The bias member can exert a bias sufficient to cause the deformable seal to fill the channels, preventing fluid flow through the channels. When the bias member decreases the bias against the deformable seal, the deformable seal gradually moves out of the channels, allowing fluid flow through the channels, and through the passage in a flow control. The deformable seal does not need to separate from the seal surface to allow fluid flow. Instead, fluid flows through the small, controlled flow areas created when the deformable seal withdraws from the channels.

Abstract: Methods and apparatus for a bi-directional dual chamber orifice fitting comprising a body with a chamber in fluid communication with a flow bore. The fitting also comprises an orifice supported by an orifice plate carrier that is selectably disposable in the bore. In the preferred embodiment, the lower chamber includes two passageways connecting the chamber to the flow bore. One passageway is located on either side of the orifice plate. Each passageway may also be equipped with a check valve to permit flow in only one direction through the passageway. In operation, the passageway on the upstream side of the orifice would allow fluid to flow into the lower chamber while the passageway on the downstream side would prevent flow back into the flow bore.

Abstract: Apparatus for attenuating the amplitude of a time-variant property of a fluid stream which comprises an enclosed volume, wherein the enclosed volume includes a mixing zone having an inlet and three or more outlets; piping means for introducing an inlet fluid stream into the inlet of the mixing zone; and piping means for withdrawing from the mixing zone three or more individual fluid portions through the three or more outlets and combining the three or more individual fluid portions into an outlet fluid stream. The distance between at least one pair of adjacent outlets may be different than the distance between another pair of adjacent outlets, and the distance between adjacent outlets may decrease as the distance of each outlet from the inlet increases.

Abstract: A method to reduce or attenuate the amplitude of time-variant properties of a fluid stream by introducing the stream into a defined enclosed volume in a controlled manner such that the residence time distribution of the fluid exiting the enclosed volume approaches that of a preferred flat residence time distribution. This is accomplished by the concept of temporal mixing in which different residence times are imparted to a fluid in a mixing zone by physically dividing the fluid into individual portions, each of which has a different residence time while passing through the mixing zone. The desired fluid portions are created by means of specifically-designed multiple inlets into the mixing zone and/or by means of specifically-designed multiple outlets from the mixing zone.

Abstract: In a damping valve for pressure medium-actuated operating circuits, a spring element is installed between housing, cover and counter-contour. In the opening direction, the spring element is pressed against the counter-contour by the pressure medium flowing through, so that a flow passage cross-section allowing almost unimpeded passage of the pressure medium is obtained. In the opposite direction, the throttling direction, the spring element rests on the cover and blocks the flow of the pressure medium until a well-defined pressure builds up, which lifts the inner side of the spring element from the counter-contour and thus opens a reduced flow passage cross-section.

Abstract: A method to reduce or attenuate the amplitude of time-variant properties of a fluid stream by introducing the stream into a defined enclosed volume in a controlled manner such that the residence time distribution of the fluid exiting the enclosed volume approaches that of a preferred flat residence time distribution. This is accomplished by the concept of temporal mixing in which different residence times are imparted to a fluid in a mixing zone by physically dividing the fluid into individual portions, each of which has a different residence time while passing through the mixing zone. The desired fluid portions are created by means of specifically-designed multiple inlets into the mixing zone and/or by means of specifically-designed multiple outlets from the mixing zone.

Abstract: During the pumping of corrosive gases, it is advantageous to admit a seal gas to endangered pumping chambers at a lower flow rate and a higher pressure than the corrosive gases. Inert gas from a supply (3) has its pressure reduced by a pressure reducer (6). An on/off valve (7) controls a flow of the inert gas through a flow restriction (8) which restricts the flow of inert gas to appropriate sealing gas rates at an outlet (4). After pumping the corrosive gas, a control valve (12) in a bypass line (11) causes the inert gas to be supplied to the outlet (4) at a higher flow rate for purging the pump.

Abstract: An auto-switching sub-atmospheric pressure gas delivery system, for dispensing gas to a gas-consuming process unit, e.g., a semiconductor manufacturing tool, without the occurrence of pressure spikes or flow perturbations.

Abstract: An automatic valve includes a housing having an inlet passage and a passage to outlet, a linearly movable shaft disposed in the housing having two stops separated by a predetermined distance, a hydraulic unit connected to the housing and to the linearly movable shaft, and a sealing flange having at least one aperture accommodating the linearly movable shaft. The sealing flange being movable on the linearly movable shaft to close and open the passage to outlet through force of one of the stops on the sealing flange, the linearly movable shaft being biased to urge the sealing flange toward the passage to outlet by contact with one of the stops wherein the sealing flange in position to close the passage to outlet from the inlet passage despite limited movement of the linearly movable shaft.

Abstract: A method to reduce or attenuate the amplitude of time-variant properties of a fluid stream by introducing the stream into a defined enclosed volume in a controlled manner such that the residence time distribution of the fluid exiting the enclosed volume approaches that of a preferred flat residence time distribution. This is accomplished by the concept of temporal mixing in which different residence times are imparted to a fluid in a mixing zone by physically dividing the fluid into individual portions, each of which has a different residence time while passing through the mixing zone. The desired fluid portions are created by means of specifically-designed multiple inlets into the mixing zone and/or by means of specifically-designed multiple outlets from the mixing zone.

Abstract: Stopcock actuator casing, comprising a base (1) having an underside and formed with a hole (2), the underside of the base being subdivided into at least three compartments (4,8,10), the first (4) of which surrounds the hole (2) and the second (8) and third (10) of which are each formed with two orifices (12,13,14,15) passing through the base (1).

Abstract: A refrigerant expansion valve for an air conditioning system is combined with a solenoid-actuated closure device in a common housing. The housing provides for placement of the solenoid valve in a position to shut off fluid flow across the expansion device, with a plunger being placed to come into sealing contact with a piston bore of the expander or with a sealing surface defined in the housing proximate to the piston. Shutting off flow across the expander prevents loss of pressure differential during “off” portions of an operating cycle, thus providing a saving of energy costs.

Abstract: A flow proportioning assembly for dividing a portion of a fluid flow such as gas for presentation to a sensor includes a holder member having a central opening and forming an exterior peripheral passageway when inserted within a conduit of a flow meter housing. A resistor member can be adjustably mounted in the central opening downstream of a holder member aperture to encourage a laminar flow pattern and a large entrance port and a large exit port can communicate with a passageway that is operatively connected with a sensor. The exit port is downstream of the resistor member. Flexible fastener members can engage the resistor member and the holder member for ease of mounting. The resistor member can also comprise a helical arrangement of small fluid passageways to encourage laminar flow.