Abstract: The application of fluidic systems to a variety of consumer devices would typically exploit fluidic structures of a few millimeters to a centimeter or so that are between the common fluidic realms of microfluidics and macrofluidics. For these devices power consumption, portability, batter operation etc. are significant factors in the design and implementation of these fluidic systems. However, the necessary range of fluidic device structures for electromagnetically driven high efficiency pumps, valves, switches, capacitors etc. require development to provide both the required functionality as well as to meet the user expectations for functionality, variability, cost, etc. but also lifetime, reliability, manufacturability etc. of the consumer devices exploiting these fluidic systems.

Abstract: The invention generally relates to methods and systems for manipulating droplet size. In certain aspects, the invention provides methods for manipulating droplet size that include forming droplets of aqueous fluid surrounded by an immiscible carrier fluid, and manipulating droplet size during the forming step by adjusting pressure exerted on the aqueous fluid or the carrier fluid.

Abstract: A valve manifold for a universal rough-in valve, the manifold comprising a first inlet; a second inlet; a first outlet; a second outlet; a cavity to receive a fluid mixing valve; a first transition in flow communication with the cavity and the first inlet; a second transition in flow communication with the cavity and the second inlet; a first channel in flow communication with the cavity and the first outlet; a second channel in flow communication with the cavity and the second outlet; wherein the manifold comprises a venturi tube extending from the second manifold outlet towards the first manifold outlet; and wherein the manifold is configured to be removably disposed in a rough-in valve chamber; and the manifold is configured to be removably coupled to the fluid mixing valve.

Abstract: An operating fluid tank includes a capacitor. The capacitor includes a first electrode and a second electrode. Between the first electrode and the second electrode, a clearance is formed which is fluid-connected to an operating fluid tank interior. The fluid tank also includes an evaluator electrically connected to the capacitor for determining a capacity of the capacitor by means of measurement signals determined by the capacitor. The first electrode and the second electrode include an electrically conductive plastic material.

Abstract: Aspects relate to an aircraft having a controllable center of gravity and methods of controlling the center of gravity. An exemplary aircraft having a controllable center of gravity includes a first tank configured to store a first portion of a ballast, a second tank configured to store a second portion of the ballast disposed substantially aft of the first tank, at least a pipe configured to provide fluidic communication between the first tank and the second tank, at least a pump configured to pump the ballast bidirectionally between the first tank and the second tank by way of the at least a pipe, and a controller in communication with the at least a pump and configured to control a ballast ratio of the first portion of the ballast relative the second portion of the ballast and affect an aircraft center of gravity.

Abstract: The invention relates to a mixing cartridge (1) for generating mixed water with a mixing temperature, having a hot water inlet (2) for hot water, having a cold water inlet (3) for cold water, having a mixing chamber (4), in which the hot and cold water can be mixed, and having a mixed water outlet (5) through which the mixed water can leave the mixing cartridge (1). According to the invention, the mixing cartridge (1) has at least one vortex element (6), which is arranged and/or designed in such a way that the water flowing through the mixing cartridge in a flow direction can be made to rotate, such that the water can form a water vortex.

Abstract: A universal rough-in valve (20) includes a valve chamber (34) configured to receive a valve manifold (72). The universal rough-in valve includes a first valve inlet (22) configured to provide a pathway for fluid from a first supply line to the valve chamber and a second valve inlet (24) configured to provide a pathway for fluid from a second supply line to the valve chamber. The universal rough-in valve includes a first valve outlet (29) configured to provide a pathway for fluid from the valve chamber to a first outlet line, and a valve manifold (72) coupled to the valve chamber.

Abstract: A handheld comminutor—spray bottle assembly includes a bottle; a comminutor; and a sprayer assembly. The bottle has an externally threaded mouth. The comminutor includes a comminutor body, with an internally threaded rim, housing a power source and an electrically connected motor. Blades connected to the motor by a shaft extend from the comminutor body. The sprayer assembly includes a spray head attached to a spray bottle cap, a siphon straw and an elongated filter housing connected with a spray head inlet, with a filter on the housing. A filter housing cap secures the filter to the housing. The spray bottle cap has an internally threaded rim and a seal ring. The comminutor rim and the spray bottle cap rim alternately connect with the mouth of the bottle. The motor rotates the shaft and the blades. Biomatter and liquid comminuted in the bottle are dispensed using the spray head.

Abstract: A device for supplying pressurized fluid, comprising a first valve) and a second valve accommodating internal circuits, the first valve and the second valve including respective coupling members that form a quick-connection system for removably connecting the second valve to the first valve, the internal circuits including a set of one or more control valves the device including at least one manually actuable mobile control member for controlling the set of one or more control valves, between a first, rest position, in which the flow of fluid towards the outlet is prevented, and a second, active position, in which the flow of fluid towards the outlet is allowed, the quick-connection system including a connection piece for connecting the second valve to the first valve between a first position.

Abstract: A proportioner having a body portion that defines a foam passage and a fluid passage. The proportioner also includes a restrictor assembly having a restrictor disk and an orifice plate having an opening for receiving the restrictor disk. The proportioner can further include a rod member connected to the restrictor disk and a clapper assembly connected to the rod member via a sliding interface. The clapper assembly can be configured to control a flow of the foam concentrate through the foam passage in proportion to a flow of the fire protection fluid through the fluid passage by moving the rod member to vary the distance between the restrictor disk and the orifice plate. The sliding interface can be disposed between a first guide and a second guide, and at least a portion of the restrictor disk is disposed in the opening.

Abstract: A flow control device for an appliance including a burner and a blower for delivering a pre-mixed mixture of air and gas to the burner includes a flange defining an opening through which the pre-mixed mixture of air and gas flows from an outlet of the blower to the burner. A damper plate is provided in the opening downstream of the blower for increasing a static pressure at the outlet of the blower during ignition of the burner.

Abstract: A direct contact steam injection heater that includes a stem plug that is rotatable over 360°. The stem plug is connected to an actuator that is operable to rotate the stem plug over 360° of rotation during both the heating function of the steam injection heater and during a clean-in-place process. The stem plug includes a regulating head having a pair of sealing inserts formed on each of a pair of sealing faces. The sealing inserts are biased outward into contact with an inner surface that includes the steam injection nozzles. As the regulating head rotates between a closed position and an open position, the nozzles are exposed to allow steam to flow into the product being heated. The regulating head further includes a pair of foils. During the clean-in-place operation, the foils create a turbulent flow of cleaning liquid within the steam chamber.

Abstract: A system and method of controlling a fuel system on an aircraft includes selectively supplying fuel from either a main fuel tank or at least one wing fuel tank to a fuel consumer by varying a speed of at least one main fuel tank pump associated with the main fuel tank relative to a speed of at least one wing fuel tank pump associated with the at least one wing fuel tank.

Abstract: An inductive switching valve includes a valve body, a valve core assembly that is mounted in the valve body, a rocker arm that is movably connected to the valve body and matched with the valve core assembly, and a switching feedback unit. A magnetic assembly and a magnetic sensor of the switching feedback assembly are mounted to the rocker arm and the valve body, respectively. The switching feedback unit can automatically generate a corresponding switching signal according to the switching state of the inductive switching valve, so that the present invention can automatically feed back the switching state of the inductive switching valve.

Abstract: Fuel systems, apparatus and associated methods for preventing or hindering unwanted fuel transfer between fuel tanks of aircraft are described. An exemplary apparatus comprises a conduit portion disposed inside a fuel tank for receiving fuel in the first fuel tank. The conduit portion includes an orifice through a wall of the conduit. The orifice permits venting an interior of the conduit portion to an interior of the fuel tank to prevent unwanted fuel transfer due to siphoning. A deflector is disposed and configured to deflect a stream of fuel discharged from the orifice during fuel transfer.

Abstract: A mixer valve (1) comprises a body (5) extending in a first direction between a front end and a rear end. The body (5) defines a volume (5a); a thermostatic cartridge (15) is received in the volume (5a), and a diaphragm valve (21) is received in the volume (5a) between the thermostatic cartridge (15) and the rear end of the body (5). The diaphragm valve (21) is operable in response to actuation of a push operated control member (23) to control flow of water from the mixer valve (1).

Abstract: The present invention relates to a turbine ventilator having a fast response to the required inhalation of a subject connected to the ventilator. The turbine ventilator (1000) comprises: a first valve (3) connectable to at least one breathing orifice of the subject; an inspiratory reservoir (6) having an adjustable volume, said inspiratory reservoir being fluidically connectable to said first valve; a turbine unit (1) fluidically connectable to the inspiratory reservoir, said turbine unit being fluidically connectable via said first valve to the at least one breathing orifice of the subject; and a control unit (9) configured to control said first valve for controlling a flow or pressure from the inspiratory reservoir and/or turbine unit to the subject based on setpoints.

Abstract: A control system is provided to a reductant dosing system for actively maintaining the reductant dosing system ready for use by flushing unused reductant that has crystallized at a return valve of the reductant dosing system. The control system includes a controller that can control a manner of operation of specific system hardware that is present in the reductant dosing system to flush the unused reductant from the return valve that could otherwise cause the return valve to remain a flow-blocking condition as a result of the crystallized reductant.

Abstract: A combustion chamber including a body with a fuel supply duct for supplying a fuel into the body and a carrier air supply duct for supplying air into the body. An adjusting system adjusts the carrier air mass flow supplied into the body according to the features of the fuel.

Abstract: A reductant insertion system for delivering a reductant to an aftertreatment system comprises a reductant storage tank configured to store a liquid reductant. A pressure relief valve is operably coupled to the reductant storage tank. The pressure relief valve is configured to selectively open in response to a reductant gas pressure in the reductant storage tank exceeding a predetermined reductant gas pressure threshold. A reductant insertion assembly is fluidly coupled to the reductant storage tank and configured to deliver the liquid reductant to the aftertreatment system. The reductant insertion assembly comprises a shutoff valve configured to be selectively closed in response to a liquid reductant pressure in the reductant insertion assembly exceeding a liquid reductant pressure threshold, so as to stop delivery of the reductant from the reductant storage tank to the reductant insertion assembly.

Abstract: A system has a fluid motor for receiving a pressurized fluid motor causing actuation of the fluid motor, with the fluid motor having a motor inlet and a motor outlet. The motor fluid is delivered from the motor outlet into a container. The motor rotor drives a pump rotor. The pump rotor drives a fluid from a pump inlet to a pump outlet, with the pump outlet being connected into the container. A metering system allows a precise amount of rotation of the motor rotor and the pump rotor to meter the motor fluid and the pump fluid into the container.

Abstract: An apparatus for adhering a communication line to a surface. The apparatus includes a main body moveable in an advancing direction and a communication line holder configured to deploy the communication line onto the surface. The communication line holder is mounted on the main body. The apparatus also includes a container to store a protectant. The container is mounted on the main body. The apparatus further includes a protectant applicator connected to the container and configured to eject the protectant onto the surface. The protectant applicator is positioned closer to the rear end of the main body than the communication line holder so that the ejected protectant is applied onto the communication line that has been deployed on the surface. The apparatus includes a shaping template connected to the main body. The shaping template includes an opening and is positioned to contact the surface when the main body advances.

Abstract: An air operated diaphragm pump is provided a housing having an orifice formed therein; a gas passageway configured to provide gas through the air operated diaphragm pump in order to pump syrup through the air operated diaphragm pump; a syrup passageway configured to provide the syrup through the air operated diaphragm pump when the gas is passed though the gas passageway, part of the syrup passageway configured in fluidic communication with the orifice of the housing with an inside pressure greater than an external pressure of the outside atmosphere when the syrup is provided through the air operate diaphragm pump; and an indicator arrangement configured or arranged in the orifice of the housing to communicate with the syrup passageway, and to respond or activate when a vacuum force exceeds a predetermined level and provide a visual indication when the syrup is no longer provided through the air operated diaphragm pump.

Abstract: A flow control system for a downhole system includes a tubular having an outer surface, an inner surface defining a flow path, and at least one cavity defined between the outer surface and the inner surface. A first opening formed in the outer surface fluidically connected with the at least one cavity, a second opening formed in the inner surface fluidically connecting the at least one cavity with the flow path. At least one impeller rotatably mounted in the at least one cavity, and a flow control device operatively coupled to the impeller, the flow control device selectively adjusting a rotational impedance of the at least one impeller to control fluid flow between the first opening and the second opening.

Abstract: A microflotation system comprises a flotation tank with a dispersion water feed line in which an expansion valve arrangement is disposed. An adjusting apparatus is configured to adjust a flow rate of the expansion valve arrangement and an electronic control is connected to the adjusting apparatus. A measuring apparatus is disposed downstream from the expansion valve arrangement for detecting a size distribution of gas bubbles and the electronic control is configured to set the flow rate depending on a size distribution detected with the measuring apparatus.

Abstract: The invention relates to a fuel management system for a vehicle. The fuel management system includes a fill-up sensor located at an inlet of a fuel tank of the vehicle, for determining the volume of fuel flowing into the fuel tank, a fuel supply sensor located in a fuel line between the fuel tank and an engine of the vehicle, for determining the volume of fuel flowing to the engine of the vehicle and a return line sensor located in the fuel return line of the vehicle, for determining the volume of fuel returning to the fuel tank. The system further includes a controller in communication with the fill-up sensor, fuel supply sensor and return line sensor, for collecting data from the sensors, calculating whether there is a fuel deviation between the amount of fuel entering the fuel tank and consumed by the vehicle, and generating fuel deviation events.

Abstract: Methods and apparatus for accelerated wear testing of prosthetic heart valves apply non-sinusoidal pressure waveforms. The waveforms may maintain a threshold reverse pressure for a desired duration while limiting a peak reverse pressure. Apparatus may include a fluid impeller such as a bellows or a piston driven by an actuator having a position controlled by a motion control system. The apparatus may include a pressure control system comprising one or more bypass channels and bypass valves controlling a resistance of the bypass channels to fluid flow. The bypass valves may be controlled in real time.

Abstract: An abrasive blasting apparatus comprises a blast pot, a blast media valve fluidly connected to said blast media outlet of the blast pot, a source of pressurized gas, a proportional air valve in fluid communication with the blast media valve and the source of pressurized air, a hose having a blast nozzle at a distal end thereof, and a main control unit fluidly connected to the blast media valve and the air valve. The blast media valve comprises a housing having a blasting media intake, a plunger disposed within the housing, a sleeve disposed between the housing and the plunger, a blast media port in the sleeve, a casing fixedly connected to the housing, a piston disposed within the casing and connected to the plunger, and a base member fixedly connected to the housing. The plunger is movable by the piston with respect to the blast media port.

Abstract: A gas turbine engine includes a first duct, a second duct, and a bladder. The bladder is disposed in the first duct and communicates with the second duct. A first gas flow is capable of passing through the first duct and a second gas flow is capable of passing through the second duct. The bladder is adapted to receive a bleed gas flow from the second duct and inflate within the first duct, thereby decreasing an area in the first duct through which the first gas flow is capable of traveling.

Abstract: An apparatus comprises a body, a first poppet, and a second poppet. The body comprises a first fluid channel and a second fluid channel. The first fluid channel and the second fluid channel are operable to be fluidly isolated from each other. The first poppet is positioned in the first fluid channel, and the first poppet is operable to be moveable within the first fluid channel. The second poppet is positioned within the second fluid channel, and the second poppet is operable to be moveable within the second fluid channel. The first poppet and the second poppet are operable to be mechanically coupled together such that movement of the first poppet within the first channel is operable to cause sympathetic movement of the second poppet within the second fluid channel.

Abstract: A balance valve is provided with an asymmetric structure. When the dual-temperature ceramic valve is switched to cold water supply modes, and the hot water line is blocked to make a moveable spool abutted towards a first lateral end wall of a holding space, a cold water channel can thus be formed between the cold water opening of a fixed valve pipe and a second end of the moveable spool with the setting of the asymmetric structure. Hence, cold water supply can maintained. When the hot water line is blocked, the cold water supply function of the balance valve of the present invention could still be maintained for improved convenience and applicability.

Abstract: A fuel staging system comprises a splitter valve arranged to split an input fuel stream into a pilot fuel stream and a main fuel stream, the splitter valve comprising a spool slidable within a bore, the spool and bore together defining first and second control chambers, the fluid pressures in which determine the position occupied by the spool, the system further comprising a control line which, in use, controls fuel delivery through a plurality of main burners, the fluid pressure in the control line being a combination of the fluid pressures in the first and second control chambers.

Abstract: PCV systems are well known in the art and commonly used in turbocharged engines. The ejector creates a pressure drop for additional pull of PCV gas under boosted conditions of the turbocharger engine. The ejector typically includes a first inlet and a second inlet and a sole outlet. The first inlet pulls air from the compressor of the PCV system. The second inlet pulls air from the cyclone separator of the PCV system. Air exiting the ejector is exited to the intake manifold. However, when the turbocharger of the system is off, fresh air can leak in from the inlet from the oil separator thereby preventing the ventilation of blowby. The unwanted air reduces the efficiency of the turbocharger system. Accordingly, an ejector preventing unwanted fresh air flow is needed in the art.

Abstract: The initially cold water streams of a household hot water plumbing circuit are accumulated in a storage container to be thereafter drained off with the cold water stream, at various flow restricted levels, thereby conserving water use. This accumulate may be adjustably admixed into the waste products of a household drinking water purification system, thereby diluting it to acceptable levels that may be useful for washing and the like. Additionally, and/or alternatively, the fresh water stream may be admixed into the water purification waste water stream. Each of these water conserving functions is conformed to be combined in a stepwise manner, thereby accommodating budgetary and use growth constraints.

Abstract: A gas turbine engine valve is disclosed. In one form the valve includes two inlets in fluid communication with an outlet. The valve can include a spool having two lands capable of selectively closing either of the two inlets. The valve can include energy storage devices that initially position the spool within a valve housing. A temperature motor is provided to position the spool based upon a temperature of a mixture of working fluid from the two inlets. A working fluid flowing into the first inlet can be in fluid communication with a second end of the valve; and a working fluid flowing into the second inlet can be in fluid communication with a first end of the valve. A relatively high pressure condition at one or the other of the inlets can be used to alter a position of the valve.

Abstract: A flow-control valve has a housing having first and second input ports and respective first and second output ports for respective first and second separate fluid streams and formed between the first and second port with first and second valve seats. Respective first and second valve bodies are axially shiftable in the valve seats, and a coupling element connected axially between the valve bodies moves the valve bodies axially jointly. A diaphragm between the first piston and the housing defines an axially inner compartment into which the first input port opens and between the diaphragm and the housing an axially outer compartment. The first valve body is formed with a passage extending through the first valve body and having an axially extending part opening into the outer compartment and a transversely extending part opening into the housing between the first seat and the first output port.

Abstract: A balance control valve with improved operational sensitivity is accommodated in the holding space preset into the dual-temperature ceramic valve. Annular grooves are located correspondingly to the cold water opening and hot water opening of the fixed valve pipe. An unscaling portion is formed between the annular grooves and the inner wall of the fixed valve pipe in a vertical configuration, and is used to remove scale generated on the exterior of the moveable spool. The setting width of the annular groove is equal to or greater than the width of the cold water opening and hot water opening. With the setting of the annular groove, the contact area of the moveable spool and the inner wall of the fixed valve pipe could be reduced so as to improve the operational sensitivity of the moveable spool, remove the scale and extend the service life of the balance control valve.

Abstract: A hot melt dispensing system includes a hopper, a delivery line, a shaker, and an air supply line. The hopper stores hot melt pellets and the delivery line delivers the hot melt pellets from the hopper. The shaker agitates the hot melt pellets. The air supply line supplies air that flows through the shaker to produce vibration and additionally flows through the delivery line to create a vacuum that draws the hot melt pellets through the delivery line.

Abstract: A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).

Abstract: A pilot valve assembly for regulating the output of a first pressure source relative to a second pressure source, a fluid system equipped with the valve assembly, and a method of operating the valve assembly. The valve assembly includes a valve body with inlet and outlet ports and first and second sensing ports. The first and second sensing ports are adapted to sense, respectively, the fluid pressures of the first and second pressure sources. The inlet port is adapted for fluidically connecting to the first pressure source. The valve assembly defines a flow path between the inlet and outlet ports, and has components for allowing fluid flow from the inlet port, through the flow path, and to the outlet port only if the fluid pressure of the first pressure source exceeds the fluid pressure of the second pressure source by a differential by the flow-allowing components.

Abstract: Processes are provided for reducing the hydrodynamic friction of a turbulent brine stream including, for example, the step of injecting a mixture of a finely divided free flowing friction reducing powder into the turbulent brine stream, wherein the particles of the powder have a primary particle size between 10 and 100 microns in average particle diameter, and the brine stream comprises water with at least 90,000 ppm total dissolved solids, wherein the total dissolved solids includes at least 30,000 ppm sodium cations, 10,000 ppm calcium cations, and 1,000 ppm magnesium cations, and wherein the brine has an electrical conductivity of greater than 100.0 mS/cm at 25° C. For use with a harsher brine, the particles preferably have a primary particle size between 10 and 53 microns in average particle diameter. The friction reducing powder may, for example, be a polyacrylamide polymer.

Abstract: The invention relates to a dosing pump unit for mixing a liquid reducing agent with an exhaust gas flow by means of a dosing pump which is connected, on the input side thereof, to a connection connectable to a reducing agent tank and, on the output side thereof, to a pressure pipe and a pipe for returning flow back to said reducing agent tank, wherein a non-return valve which is prestressed against a hydraulic pressure produced by the dosing pump is arranged in the pressure line, the return pipe is connected to the pressure pipe upstream of the non-return valve in the reducing agent flow direction and a first stop valve for selectively closing the return pipe is placed therein.

Abstract: One or more techniques and/or systems are disclosed for saturating a gas with a liquid-borne compound. A bubbler container may be configured to contain a carrier liquid, which comprises a desired compound. The container may comprise at least one routing plane, disposed between the top and bottom of the container, which may be configured to allow gas bubbles to travel through a circuitous, routing route. The gas can be introduced to the container at a bottom portion of the container, into the carrier liquid comprising the compound. Carrier gas bubbles formed in the liquid may be forced to travel the routing route to a top portion of the container, where gas saturated with the compound may be collected.

Abstract: A continuous moldline technology elastomeric control surface and methods are presented. A control surface is coupled to a fluid-dynamic body. An elastomer interface is coupled to the control surface and the fluid-dynamic body such that a joint gap caused by movement of the control surface relative to the fluid-dynamic body is filled.

Abstract: A flow balancing valve for a multistage combustor includes a first pressure feedback line, a first burn line, and a first metering port fluidly connected to the first fuel injector. The flow balancing valve further includes a second pressure feedback line, a second burn line, and a second metering port fluidly connected to the second fuel injector. A metering land is located between and defines sizes of the first metering port and the second metering port. An increase in pressure differential between the first pressure feedback line and the second pressure feedback line causes a compensatory movement in the metering land to balance fuel flow for the first fuel injector and the second fuel injector.

Abstract: A method for injecting a chemical, such as an odorant, from a chemical supply into a fluid-containing system such as a natural gas or an LPG pipeline. A tank of odorant is maintained at a pressure above ambient, but below pipeline pressure. An injection conduit communicates the odorant tank with the pipeline. A hydraulic pressure booster is located in the injection conduit for pressurizing the chemical to a pressure above that of the pipeline. Flow-control apparatus located within the injection conduit for metering chemical to be injected into the pipeline is either (a) drip-style metering valve adjustable between a drop-wise setting and a steady-flow setting or (b) a pair of valves one of which is a flow valve allowing larger volumes to be injected and the other which is a drop-wise flow valve for metering smaller volumes of the chemical.

Abstract: A demand valve for gas mixing comprises two or more flow control valves that are connected to separate gas supplies. The demand valve includes a common actuation mechanism, such as a diaphragm arranged to displace levers, each of which, in turn, opens and closes proportionally in a substantially constant ratio a respective flow control valve. Inhalation flow drawn through an outlet causes displacement of the diaphragm and hence opening of the flow control valves. Gas from the separate supplies is therefore mixed in a main chamber to a substantially constant composition, regardless of the flow rate demanded, before being dispensed via the outlet.

Abstract: A cold and hot water balancing valve structure is provided which can fit common standard specifications. While maintaining the outer diameter and height of the high legged seat of the valve enclosure under existing standard specifications of ceramic valves, the bottom ends of the cold and hot water through holes of the high legged seat are configured with a water inlet pipe set housing groove for fitting an eccentrically positioned assembled water inlet pipe set, which are made up of cold and hot water tubes. When the meshing edges of the tubes are joined together, a balancing valve housing space is defined inside to hold a cold and hot water balancing valve unit. The cold and hot water balancing valve structure fits existing standard ceramic valve specifications, so as to dramatically reduce the production cost of cold-hot balancing valves while realizing the cold and hot water balancing function.

Abstract: A temperature controlling valve contains a body including a cylindrical chamber, a first opening, a second opening, a first inflow channel, and a second inflow channel; a sleeve member retained in the chamber and including at least one first orifice and second orifice; a first cover to close the first opening; a second cover applied to close the second opening; a valve core fitted into the sleeve member, wherein the first cover includes a first projected portion with a first guide tunnel; the first guide tunnel includes a first axial flowing section and a first longitudinal flowing section; the first projected portion includes a first circular back pressure fence; the second cover includes a second projected portion with a second guide tunnel; the second guide tunnel includes a second axial flowing section and a second longitudinal flowing section; the second projected portion includes a second circular back pressure fence.

Abstract: The subject invention described herein is directed to an improved fluid powered system for dispensing a selectively variable proportion of additives into a primary fluid supply line such as is commonly encountered in the firefight industry where it is desirable to proportion foam concentrates into a water line. The subject invention features a water driven motor that is integral to a variable displacement additive pump. A proportioning adjustment allows the solution % to be adjusted. Once set, the additive percent varies in direct proportion to the water flow rate in order to maintain a nearly constant solution percentage over a broad flow range.