Abstract: A mixing element (1) for a mixing device in an exhaust gas-conducting pipe (8) of an exhaust system of a combustion engine provides advantageous intermixing of the exhaust gas with an additive and an advantageous temperature distribution within the exhaust gas-additive mixture. The mixing element (1) includes at least four vanes (2) and a connecting section (3). The vanes (2) are angled off from the connecting section (3). Two vanes (2) which, with respect to a longitudinal axis (5) of the connecting section (3), are directly adjacent or two vanes (2) which are located directly opposite, with respect to the longitudinal axis (5) of the connecting section (3), are angled off towards different sides (4?, 4?) of the connecting section (3). The mixing element (1) as well as the connecting section (3) and the associated vanes (2) are embodied as shaped sheet metal part.

Abstract: The present invention provides a mixer for producing a past by mixing components. The mixer includes a housing having a longitudinal axis, a rear end, and a front end provided with a discharge opening. The mixer also includes a mixing changer formed in the housing, where the mixing chamber has an entry side facing the rear end of the housing. The initial content of the mixing chamber is diverted from the discharge opening, and the subsequent content of the mixing chamber is extrudable from the discharge opening.

Abstract: In a heat exchanger that includes an expanded part of a duct, a heat-transfer tube bundle accommodating duct, and a plurality of heat-transfer tube bundles provided in the heat-transfer tube bundle accommodating duct in a flow direction of flue gas with a distance therebetween, a bare-tube-part upstream-side regulating plate and a bare-tube-part downstream-side regulating plate at an upstream side and a downstream side of a bare tube part of each of the heat-transfer tube bundles and a plurality of regulating plates in an introducing unit arranged either in the expanded part of a duct or in the heat-transfer tube bundle accommodating duct on an upstream side to the heat-transfer tube bundle are provided. A drift at the bare tube part of the heat-transfer tube bundles can be significantly reduced.

Abstract: A manufacturing method of a multi-laminated body according to the present invention includes a step 1 (L-flow path) for vertically dividing a laminated flow obtained by arranging at least two molten resins adjacent to each other in a lengthwise direction into two sections, guiding the divided laminated flows to opposite directions relative to the flow direction, and then guiding both laminated flows toward the center of the flow direction, and rearranging the laminated flows adjacent to each other in the horizontal direction and thereby joining the laminated flows together, and a step 2 (R-flow path) for vertically dividing a laminated flow obtained by arranging at least two molten resins adjacent to each other in a lengthwise direction into two sections, guiding the divided laminated flows to directions opposite to the above-mentioned directions relative to the flow direction, and then guiding both laminated flows toward the center of the flow direction, and rearranging the laminated flows adjacent to each o

Abstract: A stackable noise attenuating disk includes an inner perimeter edge and an outer perimeter edge. A plurality of inlet passages is disposed along the inner perimeter edge and a plurality of outlet passages disposed along the outer perimeter edge. The plurality of outlet passages includes first outlet passages having a first width and second outlet passages having a second width, which is greater than the first width. Each of the plurality of outlet passages defines a longitudinal axis that is offset by a predetermined angle from a radial axis extending through a corresponding outlet passage. The plurality of inlet passages and the plurality of outlet passages are arranged such that fluid entering one of the plurality of inlet passages exits through at least one of the plurality of outlet passages.

Abstract: Implementations of an orifice plate used to regulate flow through a conduit are provided. In some implementations, a balanced restriction orifice (BRO) plate configured to maximize pressure loss is provided. In some implementations, the BRO plate may be configured to limit pipe and plate noise, erosion, cavitation, shear stress, etc. while maximizing pressure loss, and limiting flow to required values. In some implementations, openings through a BRO plate may be configured to satisfy the Velocity-Head Pressure-Loss equation: ?P=k?Vn/2Gc. Alternatively, in some implementations, the hole pattern of an orifice plate may be optimized through the use of a provided Reynolds matching (RM) equation. In some implementations, an orifice plate may be optimized to improve process variable measurements, minimize system pressure drop, recover pressure, and reduce noise and other inefficiencies within the system using equations provided herein.

Abstract: A mobile collecting device (22) for the high-pressure water jet (26) of a water-jet tool (18), especially for working in confined places with difficult access in turbines or the like, in which a more flexible and safer operation is achieved by a closed collecting chamber (24), which extends over a large area and includes an outlet (30), and in which a rigid first collecting bed (34) formed of a first high-pressure-resistant material is arranged.

Abstract: A flow restrictor for use in a cooling system of an internal engine comprises a housing enclosing an elongate body, a number of alternating first and second circumferentially extending passages formed in the elongate body. Each first passage is separated from a respective adjacent second passage by a respective land and at least one transfer passage extending across each land so as to connect the first and second passages on each side of the land and provide a significant loss in fluid momentum.

Abstract: An apparatus for axially transferring fluid may comprise an elongated shaft defining a first fluid passageway axially therethrough and a second fluid passageway from an outer surface thereof to the first fluid passageway. An elongated tube member defines an outer surface that is received within the first fluid passageway and a third fluid passageway axially therethrough. A plurality of axial channels are defined between the tube member and the first fluid passageway or along the tube member separately from the third fluid passageway. At least one of the plurality of axial channels define a first opening near one end thereof that receives fluid from a source of fluid and a second opening axially spaced apart from the first opening and that aligns with the second fluid passageway such that fluid may be transferred by the at least one fluid passageway from the source of fluid through the second fluid passageway.

Abstract: The present invention relates to a device for treatment of material transported through the device comprising at least one porous element consisting of solid, for example metallic, structure which allows cross-flow of the material through the porous element. A device in accordance with the invention is particularly useful as mixer or heat exchanger or to carry out chemical reactions under homogenous and heterogeneous conditions. Such a device hereinafter also referred as reactor may comprises a tube (1) having a cylindrical wall (2) with one inlet end (3) and one outlet end (4). Arranged in the tube (1) is at least one cylindrical porous element (5) consisting of solid metal structure, wherein said porous element (5) comprises a plurality of hollow spaces that are connected to each other and form an interconnected cavity network and wherein the at least one porous element (5) and the cylindrical wall (2) are made in one piece. The porosity ? of the at least one porous element (5) is between 0.8 and 0.95.

Abstract: A modular hydraulic hammer reduction system for railroad tank cars includes tubular hydraulic hammer reduction devices which include means to connect the tubular devices to flanges other than by welding or being cast together. For example, the tubular devices can be press fit into the flanges, or the tubular devices can be connected to the flanges with snap rings (preferably spiral-lock snap rings), or even more preferably the tubular devices can be press fit into the flanges and the tubular devices can be connected to the flanges with snap rings (preferably spiral-lock snap rings). The advantage of this modular construction is that one can manufacture multiple tubular devices and multiple flanges of each type, and connect the flanges to the tubular devices on an as-needed basis.

Abstract: Fluid flow control devices comprise a body including a central aperture extending along a longitudinal axis therethrough and a plurality of channels extending from an outer sidewall of the body to an inner sidewall of the body. At least one first channel may intersect at least one other channel. Fluid flow control systems, methods of forming fluid flow control devices, and methods of flowing a fluid through a fluid flow control device are also disclosed.

Abstract: A fluid pressure reduction device includes a radial and axial fluid flow path in stacked disks. The stacked disks form a fluid flow path including at least two pressure reduction stages, a first pressure reduction stage being oriented so that the fluid flowpath is directed radially outward and a second pressure reduction stage being oriented so that the fluid flowpath is directed radially inward.

Abstract: A device and a method for reducing the pressure of a fluid containing granules. The device comprises a free space devoid of moving rotor blades and a housing with an inlet and an outlet. The shape of the wall within the housing and of the free space therein applies a centripetal flow component to the fluid containing the granules flowing therethrough. The pressure of the fluid containing the granules is decreased after the flow has passed through the device. The device and method further and impart a rotational motion to the fluid containing the granules in the area of the outlet, which is generally located in the central area of the free space.

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: A water-saving antiblocking anti-splash waterfall water curtain head core comprises a housing having an upper portion internally enlarged and a flow leading mouth set inside the housing; a block is set under the flow leading mouth, and there are spaces between the upper surface of the block and the exit of the flow leading mouth; the upper surface of the block is fixedly connected with a support rod going through the flow leading mouth; a flow leading bracket with through holes is fixedly connected to the internally enlarged upper portion and to a top of the support rod; the flow leading mouth is such sized to anti-block. During operation, the surface of the block equally blocks water flow and accordingly forms hollow film-like water curtain.

Abstract: The photoreactor comprises a tube bundle (10) made up of numerous capillary tubes (11) through which a reaction medium flows. The tubes (11) are transparent. Solar radiation or artificial radiation acts upon the reaction medium for effecting a photochemical or photobiological treatment. The inlet chamber (12) connected with the tube bundle (10) comprises a flow distributor (16) which distributes the reaction medium from the fluid inlet (15) to the tubes (11). The flow distributor (16) allows for a smaller volume of the inlet chamber (12). The reactor volume, which is not irradiated, is thus reduced, and the efficiency of the rector is enhanced.

Abstract: Water economizer device applicable to general fittings intended for its installation in hot and cold water feeding pipes and especially between the water supply pipe for shower artifacts whereby water consumption is reduced and the same water effect and the same sensation and result of conventional fittings is maintained. It is characterized by a coupled conduit between the water supply pipe and the water outflow artifact, within which a set of items are placed successively and operatively cooperatives between each other and which includes a piece that reduces water inflow, a piece that generates water turbulence and a piece that recovers outflow direction.

Abstract: A non-adjustable water pressure and flow speed regulating flushing system includes a valve member adapted for sealedly disposing between the water inlet and outlet to control water flowing from water inlet to outlet through the water chamber, a relief valve disposed within the water chamber for controlling the water flowing from water chamber to water outlet, and a flow speed regulation arrangement which includes an elongated bleed channel for controlling a water pressure between the water inlet and water chamber, so as to regulate a flow speed of the water entering into the water chamber through the bleed channel in a non-adjustable manner.

Abstract: Various systems and apparatuses are provided for a fluid transfer system for an engine. In one example, a system includes a first turbine having an exit for discharging a main fluid flow and a second turbine having an inlet for receiving at least a portion of the main fluid flow. A main conduit fluidically couples the exit of the first turbine to the inlet of the second turbine. A transition conduit is coupled with the main conduit and includes a volute passageway curving around the main conduit. The volute passageway includes a slot that follows a route around the curving volute passageway and opens into an interior of the main conduit. The slot is defined at least in part by a lip and establishes a path for either a secondary fluid flow to enter the main conduit or a portion of a main fluid flow to exit the main conduit.

Abstract: An inflow control device may include flow control elements along a flow path. The flow control elements may change the inertial direction of the fluid flowing in the flow path. The change in inertial direction occurs at junctures along the flow path. The flow control elements may also be configured to form segmented pressure drops across the flow path. The segmented pressure drops may include a first pressure drop segment and a second pressure drop segment that is different from the first pressure drop segment. The pressure drop segments may be generated by a passage, an orifice or a slot. In embodiments, the plurality of flow control elements may separate the fluid into at least two flow paths. The flow control elements may also be configured to cause an increase in a pressure drop in the flow path as a concentration of water increases in the fluid.

Abstract: An exhaust aftertreatment system is provided. In one embodiment, the system includes a catalyst, and injector positioned upstream from the catalyst, and a fluid-spray atomizer positioned between the catalyst and the injector. The fluid-spray atomizer includes a plurality of horizontal slats, wherein each horizontal slat is a different size and a smaller horizontal slat is nested at least partially inside a larger horizontal slat.

Abstract: An expansion tank is disclosed in which a non-return valve is fitted in an outlet port of the expansion tank to limit backflow of coolant into the expansion tank in the event that the pressure in the expansion tank falls below the pressure in a return conduit thereby preventing the expansion tank from filling with coolant. The non-return valve and the expansion tank are formed as a single component and the non-return valve is located in an outlet port of the expansion tank.

Abstract: An anti-siphoning fuel system that includes a fuel inlet, a fuel tank, at least one fill tube or hose connecting the fuel inlet to the fuel tank such that fuel may flow from the fuel inlet to the fuel tank, and an anti-siphoning element or device coupled to the fill tube or hose that may be installed in existing boats or cars and obstructs a siphoning hose inserted in to the fill tube or hose from entering the fuel tank.

Abstract: The present invention relates to improvements in or relating to pump installations, It has particular relevance in the field of reciprocating piston pumps, such as condensate removal pumps which are used to remove condensate from air conditioning installations. We describe a liquid pulse damping device (20) comprising a body (21) having an inlet (22) and an outlet (23) in fluid communication. Intermediate the inlet and outlet is at least one liquid flow direction changing element (24, 25). Preferably, the at least one flow direction changing element (24, 25) is in the form of an elongate element having a closed end (30, 31) and a side wall, suitably a cylindrical side wall, having at least one bore (40) formed therethrough.

Abstract: A drip irrigation emitter includes a disc shaped body having a pressure reducing labyrinth between a water inlet area and an outlet hole, and a pressure regulating diaphragm changing flow through the outlet hole in response to water pressure fluctuations in the water conduit where the emitter is mounted. The water filtering inlet of the emitter is located entirely at the sides of the disc shaped body.

Abstract: A paint circulation system for use in painting a workpiece. The paint circulation system operates to deliver paint to a paint applicator placed adjacent a workstation such as a paint spray booth. The paint is continuously circulated through the system and is returned to a paint reservoir through a paint return conduit. A coiled tube back pressure regulator located on the paint return conduit between the paint return manifold and paint reservoir functions to achieve a desired pressure drop in the paint circulation system while reducing paint shear and degradation typically associated with conventional pressure regulators.

Abstract: A fluid flow control device, particularly useful for drip-irrigation emitters, for controlling the discharge of a fluid (water) from a discharge port in a fluid conduit (drip irrigation pipe) includes: a housing attachable to the fluid conduit and constructed to define a fluid chamber having an inlet opening communicating with the interior of the fluid conduit, and an outlet opening communicating with the discharge port of the fluid conduit; and a flow control member freely movable within the fluid chamber and having a surface contacting an inner surface of the housing to control the flow of fluid from said fluid chamber out of the fluid conduit via said outlet opening in the housing. One of the contacting surfaces of the flow control member or housing is formed with a protruding pattern such that the two contacting surfaces define small passageways for the flow of fluid from the fluid chamber out of the fluid conduit via the outlet opening.

Abstract: A valve trim for a pressure reduction valve containing a plurality of high hydraulic flow resistance flowpaths therethrough. Each flowpath comprises at least two inlets (208, 209) and at least one impingement zone (210) having two zone inlets (211, 212) and two zone outlets (213, 214). The zone inlets (211, 212) communicate with the inlets (208, 209) and are arranged substantially 180 degrees to one another. The two zone outlets (213, 214) are arranged substantially perpendicular to the zone inlets (211, 212) such that flow entering the two zone inlets (211, 212) mutually impinges on itself creating an area of high energy loss, and thereafter separates and exits through the zone outlets (213, 214).

Abstract: A dispenser system comprising a reservoir, a closure device for controlling the flow of liquid from the reservoir, and a housing to which the reservoir is attached is disclosed. The reservoir is movable relative to the housing from a storage position in which the closure device prevents liquid flowing from the reservoir to a dispensing position in which the closure device allows liquid to flow from the reservoir. The housing comprises an activation device which on movement of the reservoir from the storage position to the dispensing position causes the closure device to allow the liquid to flow from the reservoir.

Abstract: A vacuum relief valve is provided. The vacuum relief valve includes a valve body, a filter, a valve stem, a valve seal, a valve seat and valve biasing structure. The valve body includes an interior, an inlet side and a tank side. The inlet side is located substantially opposite the tank side. The filter is located at the inlet side. The valve stem is positioned on the interior the valve body. The valve seal is positioned about the valve stem. The valve seat cooperates with the valve seal to seal the vacuum relief valve. The valve biasing structure is located between the valve seal and the tank side. The valve biasing structure is configured to bias the valve seal towards the valve seat.

Abstract: A surge tank is sized to retain a volume of fluid. A fluid inlet/outlet port is attached to the tank, and an elastomeric bladder is disposed within the tank and separates the fluid from a volume of gas. A nozzle system is disposed within the tank and has a nozzle member comprising a first plurality of axially elongate perforations, and a second plurality of perforations. The nozzle member can extend a partial or complete distance with tank. The tank body includes a throat that extends outwardly from a portion of the tank adjacent the port, and a portion of the nozzle member comprising the first plurality of perforations is disposed within the throat. An annular space exists adjacent the nozzle member in the neck to facilitate the flow of solid constituent within the fluid from the tank and into the nozzle member.

Abstract: An apparatus for axially transferring fluid may comprise an elongated shaft defining a first fluid passageway axially therethrough and a second fluid passageway from an outer surface thereof to the first fluid passageway. An elongated tube member defines an outer surface that is received within the first fluid passageway and a third fluid passageway axially therethrough. A plurality of axial channels are defined between the tube member and the first fluid passageway or along the tube member separately from the third fluid passageway. At least one of the plurality of axial channels define a first opening near one end thereof that receives fluid from a source of fluid and a second opening axially spaced apart from the first opening and that aligns with the second fluid passageway such that fluid may be transferred by the at least one fluid passageway from the source of fluid through the second fluid passageway.

Abstract: Trim disk assemblies for use in fluid flow control devices include a first disk and a second disk. An elongated void is formed in a surface of each of the first disk and the second disk. The second disk is aligned with the first disk to provide fluid communication between the void of the first disk and the void of the second disk, the void of the first disk being offset or staggered from the void of the second disk. The void of the first disk and the void of the second disk at least partially define a fluid passageway having a cross-sectional area characterized by increases and decreases in a cross-sectional area, which define an expansion/contraction mechanism of the fluid passageway.

Abstract: A stackable noise attenuating disk includes an inner perimeter edge and an outer perimeter edge. A plurality of inlet passages is disposed along the inner perimeter edge and a plurality of outlet passages is disposed along the outer perimeter edge. The plurality of outlet passages includes a plurality of first outlet passages and a plurality of second outlet passages. Each of the plurality of first outlet passages have a first width and each of the plurality of second outlet passages have a second width that is greater than the first width. Fluid entering the inlet passages passes through a plenum section of adjacent disks to exit through the first and second outlet passages. The first outlet passages and second outlet passages cooperate to disperse the noise peak frequencies of fluid exiting the plurality of outlet passages, thereby reducing the overall noise level of fluid exiting the plurality of outlet passages.

Abstract: A feed gas conditioner includes a passageway with a plurality of heating elements positioned within the passageway. A plurality of baffle assemblies can cause a fluid flowing through the feed gas conditioner to flow in a serpentine flow pattern so that the fluid flows transverse to at least a portion of the heating elements. The baffle assemblies can each include two or more baffle elements, the baffle elements being positioned at an angle relative to each other. The heating elements can pass through passages within one or more of the baffle elements.

Abstract: An improved fluid pressure reduction device including a perimeter and a hollow center aligned along a longitudinal axis, and further including an inlet region at the hollow center and an outlet region at the perimeter, wherein the outlet region includes multiple dimensioned outlet areas arranged to substantially reduce outlet tone generation.

Abstract: A flow restrictor with a first disk having at least one inlet and at least one outlet and a flow path and a second disk having no flow path. The first disk and the second disk being stacked together. A mass flow controller comprising with an input, an output, a flow path, a pressure transducer and the above flow restrictor.

Abstract: A modular hydraulic hammer reduction system for railroad tank cars includes tubular hydraulic hammer reduction devices which include means to connect the tubular devices to flanges other than by welding or being cast together. For example, the tubular devices can be press fit into the flanges, or the tubular devices can be connected to the flanges with snap rings (preferably spiral-lock snap rings), or even more preferably the tubular devices can be press fit into the flanges and the tubular devices can be connected to the flanges with snap rings (preferably spiral-lock snap rings). The advantage of this modular construction is that one can manufacture multiple tubular devices and multiple flanges of each type, and connect the flanges to the tubular devices on an as-needed basis.

Abstract: A stacked conduit assembly includes: a conduit part in which a plurality of plate-like parts are stacked and integrated, and a hollow conduit is formed in an inner layer; and a control board to be fastened to the conduit part by a screw. The plate-like parts include a plurality of plate-like parts that respectively form a side wall, an upper face, and a bottom face of the conduit, a pilot hole is formed in a plate-like part that forms the side wall of the conduit, and the screw is a tapping screw that taps by itself in the pilot hole and is fastened. Thus, a stacked conduit assembly that can stabilize a screw engagement state and realize downsizing or thinning of devices and cost reduction can be obtained.

Abstract: A static conditioner for mounting within a tubular conduit in turn supporting fluid flow therein and including a two-stage construction having a first stage including primary vanes including laterally extending caps radially inwardly extending into the fluid flow so as to separate and direct flow against the conduit walls and a second stage of secondary plates positioned immediately downstream of the first stage and laterally offset therefrom so as to eliminate swirl and turbulence remaining in the flow after the first stage.

Abstract: A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit.

Abstract: An inflow control device may include flow control elements along a flow path. The flow control elements may change the inertial direction of the fluid flowing in the flow path. The change in inertial direction occurs at junctures along the flow path. The flow control elements may also be configured to form segmented pressure drops across the flow path. The segmented pressure drops may include a first pressure drop segment and a second pressure drop segment that is different from the first pressure drop segment. The pressure drop segments may be generated by a passage, an orifice or a slot. In embodiments, the plurality of flow control elements may separate the fluid into at least two flow paths. The flow control elements may also be configured to cause an increase in a pressure drop in the flow path as a concentration of water increases in the fluid.

Abstract: A feed gas conditioner includes a passageway with a plurality of heating elements positioned within the passageway. A plurality of baffle assemblies can cause a fluid flowing through the feed gas conditioner to flow in a serpentine flow pattern so that the fluid flows transverse to at least a portion of the heating elements. The baffle assemblies can each include two or more baffle elements, the baffle elements being positioned at an angle relative to each other. The heating elements can pass through passages within one or more of the baffle elements.

Abstract: A honeycomb extrusion body has multiple cells extending along a common direction from a first end of the body to a second end of the body. The cells are separated by cell walls, and the body has at least one fluid path defined within a plurality of said cells. The fluid path includes one or more apertures, through respective cell walls between cells of one or more respective pairs of said plurality of cells. Each aperture has an aperture width measured perpendicular to the common direction of 90% or less of a cell wall width of the respective cell wall measured perpendicular to the common direction. Optionally one or more of the plurality of cells has at least two cell walls each having an aperture at the same position in the common direction. As a further option, these apertures may be offset from the respective centers of their respective walls in the same rotational direction about a central axis of the cell.

Abstract: The invention in question relates to a needle-type stepped cylindrical stopper for automatic control of water consumption in pipelines, of two types, each type having two sections for automatically controlling water consumption, irrespective of the water pressure in the line or when the taps are opened, for use in automatic water-saving devices and pressure-sensitive flow controllers, such as to enable, with a single automatic water-saving device, incorporating the needle-type stepped stopper of this invention, automatic control of minimum water consumption, from 4.0 liters per minute as a minimum at a maximum static pressure of 0.2 kilograms per square centimeter up to a maximum water consumption of 10.0 liters per minute at a maximum static pressure of 6.0 kilograms per square centimeter.

Abstract: A configurable fluid transfer system for inflatable footwear includes a manifold. The manifold is part of an inflation system having an underfoot pump connected to one of the plurality of openings in the heel side of the manifold, an inflatable forefoot bladder connected to two of the plurality of openings in the bottom surface of the manifold and an inflatable heel bladder connected to one of the plurality of openings in the bottom surface of the manifold. fluid flows from the underfoot pump to the inflatable forefoot bladder through a one-way valve and into a first channel in the manifold connected to a forefoot bladder. The fluid inflates the forefoot bladder and exits into a second channel in the manifold. Fluid flows from the inflatable forefoot bladder to the inflatable heel bladder through the second channel and inflates the heel bladder. A pressure regulator including a porous material may be in fluid communication with the fluid transfer system to control the rate of fluid exiting the system.

Abstract: An apparatus for facilitating the removal of moisture from a compressed air tank has a tank with an interior volume, a tubular member positioned in communication with the tank and having an end adjacent the bottom of the tank, an air compressor interconnected to the tubular member for passing compressed air into the interior volume of the tank, a check valve positioned at an opposite end of the tubular member, a head pressure relief valve in communication with the tubular member, and a pressure switch cooperatively connected to the air compressor. The pressure switch opens the head pressure relief valve when an air pressure in the tank reaches a desired level so as to cause air and water in the tank to pass through the tubular member. The check valve serves to stop the passing of air and water after a period of time.

Abstract: The present invention provides a pressure-compensation drip tape, which is used in drip irrigation to continuously and evenly supply a small amount of water to plants. The drip tape of the present invention includes an outer shell 10, and overlapping sheets 21, 23 and 25, which are expandable depending on an increase of water pressure. Furthermore, the drip tape has a main passage 11, which is defined by the outer shell and the innermost overlapping sheet, such that most water supplied from a water source flows through the main passage, pressure-reducing passages 31 and 33, which are defined between the overlapping sheets, and discharge holes 21H, 23H and 25H, which are formed in the border between the main passage and one of the pressure-reducing passages and the border between the pressure-reducing passages, such that the water sequentially flows via the main passage and the pressure-reducing passages and drips outside the drip tape.

Abstract: A device comprises a housing (10) having an interior space (11) for containing fluid, an inlet for letting in fluid to the housing (10), an outlet for letting out fluid from the housing (10), an element (20) which is arranged inside the housing (10), and means (31, 32) which are arranged in the housing (10) as well and which serve for guiding the fluid from the inlet side of the housing (10) to the outlet side of the housing (10), around the element (20). The fluid guiding means comprise two zigzag-shaped components (31, 32) extending along at least a portion of the element (20) and, as a combination, providing complete coverage of the element (20) in a circumferential direction, i.e. a direction around the element (20), wherein the zigzag-shaped components (31, 32) partly overlap in the circumferential direction.