Abstract: A liquid monitoring system includes a remote measurement device located at a location of the fire hydrant that is in contact with water provided by a water main. The remote measurement device has sensors that measure characteristics of the water and a communication interface that transmits measured information to a communication network device that may be located elsewhere on the fire hydrant. The communication network device communicates with a communication network.

Abstract: An oil drain receptacle attachment, integrated system and method of use for providing a closed, clean catch system for the requisition of used motor oil for recycling. The oil drain attachment itself is positioned between a flexible drain tube and a collection receptacle where the reversibly attachable oil drain attachment allows for securing of the flexible tubing to an opening of the receptacle, in operation, that is capable of initiating and ceasing flow, through an ‘on’ and ‘off’ functionality, in addition to intermediate, partial opening and closing positions, as well as providing ventilation that facilitates the exit of air with the introduction of used oil into a collection receptacle for transportation and disposal.

Abstract: Certain embodiments described herein are directed to devices and system that can be used to fill a sample cell. In some examples, the system can be configured with a pressure device configured to provide a negative pressure to accelerate filling of the cell with the sample. In some embodiments, the negative pressure can be used to fill a flow cell at a selected fill rate.

Abstract: Lightning protected vent lines associated operatively with aircraft fuselage fuel tanks (i.e., on-board fuel tanks that are not physically located in an aircraft's wing but instead are physically located within the aircraft's fuselage structure) are provided which include a vent conduit, a coupling at a proximal end of the vent conduit for fluid connecting the vent conduit to the fuel tank, a vent opening positioned at a distal end of the vent conduit and at an external location of the fuselage and a flame arrestor positioned in the conduit between the coupling and the vent opening. The vent conduit will have an effective axial dimension (L) between the coupling and the vent opening and the flame arrestor will be positioned in the conduit at an effective separation distance (D) between an inlet of the flame arrestor and the vent opening such that L/D is greater than 5.

Abstract: A control apparatus is applied to an internal combustion engine in which fuel used for operation is changed between liquid fuel containing alcohol and gas fuel. The control apparatus includes an electronic control unit configured to prohibit use of the gas fuel when a ratio of dilution of lubricating oil by the liquid fuel in a lubricating oil storage portion of the internal combustion engine is equal to or larger than a predetermined value or when an amount of the liquid fuel mixed in the lubricating oil in the lubricating oil storage portion is equal to or larger than a predetermined amount.

Abstract: An example embodiment of an apparatus includes a housing with an opening at a first end and a plurality of holes at a second end, a plurality of hollow tubes attached to the plurality of holes, a plurality of containers removably attached to the hollow tubes, and a plurality of elastic fasteners, each elastic fastener clamping each container to a corresponding hollow tube, such that when the containers are filled with fluid and detached from the corresponding hollow tubes, each elastic fastener seals each container with the fluid inside.

Abstract: A method for channeling hot/warm working fluid includes coupling a first fluid supply path in flow communication with an inlet of a first transparent fluid reservoir to a fluid inlet valve, coupling an outlet of the first transparent fluid reservoir in flow communication to a fluid outlet supply path, coupling a second fluid reservoir in flow communication with the first transparent fluid reservoir, and coupling a second fluid supply path in flow communication with an outlet of the second fluid reservoir to a fluid outlet valve. The method also includes directing working fluid of a temperature that is above a minimum threshold temperature from the fluid inlet valve to the fluid outlet supply path through the first transparent fluid reservoir, and directing working fluid of a temperature that is below the minimum threshold temperature from the first transparent fluid reservoir to the fluid outlet valve through the second fluid reservoir.

Abstract: An aircraft auxiliary fuel tank system comprising a master tank and a plurality of slave tanks connectable to the master tank. The slave tanks can be easily added or removed to adjust fuel capacity. A rail assembly is provided to assist in the easy installation and removal of the slave and master fuel tanks. Methods are provided for using the auxiliary fuel tanks system and for providing a service for slave tank distribution, reservation and installation.

Abstract: A vertical hydraulic tank includes an upper cylindrical section and a lower conical section, with an outlet in the lower conical section. A lower multi-path manifold is attached to the outlet, the manifold including a vertical conduit in fluid communication with the outlet and a plurality of horizontal conduits in fluid communication with the vertical conduit. An upper multi-path manifold can also be attached to the tank with a plurality of upper horizontal conduits and a vertical conduit in fluid communication with the upper cylindrical section of the tank. Valves may be provided along the vertical conduit and the horizontal conduits to regulate flow of material through the conduits. A pump may be connected to either the upper manifold or the lower manifold, or both by way of a pump conduit. Multiple tanks can be connected together by way of tubing between the manifolds of each tank.

Abstract: A rail vehicle contains a sanitary system which has a waste water tank and a fresh water tank which are each equipped with associated filling level sensors. A control device is provided for establishing a link in terms of control between the filling levels in the fresh water tank and waste water tank. The control device monitors the filling level in the waste water tank by associated sensors and controls the filling level in the fresh water tank as a function of a measured filling level in the waste water tank.

Abstract: The invention concerns a device comprising a base (2) and a door (20), said device having a closed door position in which a circuit (8) of the device comprises a bag comprising two flexible films and connectors of the conveying network, and a press (9) comprising a first shell (16) disposed on a front face (5) of said base (2) and a second shell (17) disposed in said door (20); and a hinge system hinging said door (20) relative to said base (2), and disposed only on one side of said door (20) so as to form lateral clearances between said door (20) and said base (2) over the rest of a perimeter of said door (20).

Abstract: An analyzer includes, as a cleaning system, a cleanser tank that contains a cleanser; a cleaning-water tank that contains cleaning water; a connection pipe that connects the cleanser tank with the cleaning-water tank; a pump that is provided to the connection pipe and pumps the cleanser out of the cleanser tank to the cleaning-water tank; a valve that is provided to the connection pipe and adjusts a flow of the cleanser from the cleanser tank into the cleaning-water tank; and a control unit that opens the valve and causes the pump to pump the cleanser out of the cleanser tank to the cleaning-water tank via the connection pipe to clean the inside of the cleaning-water tank and the insides of cleaning-water flow-path constituents that form a flow path through which the cleaning water flows from the cleaning-water tank when the specimen is subjected to an analysis process.

Abstract: A float switch of a humidifier at least includes a main body, a water tank and a float switch. The main body has a base located at a bottom and provided with a water tank groove and a water basin having a projected portion formed at a bottom. The water tank possesses a water outlet with plural ribs to engage with a float, a circumferential wall used to combine with a protective hood of the float switch, and a space formed between the water outlet and the circumferential wall for containing the float. The float switch is set between the water tank and the water basin, used to automatically fill water in the water basin by means of the float. When the water tank is separated from the main body, a compressing end of a pressing plate is to push up the float enabling a water stopper to seal the water outlet to prevent water from leaking outside.

Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.

Abstract: An apparatus and system for transferring a liquid, such as an anesthetic, from the outlet port of a reservoir to a machine while effectively and conveniently minimizing the release of anesthetic. In one embodiment, the apparatus and system can include a first valve movable between a first position and a second position; a first housing surrounding the first valve; a second valve slidably connected to the first valve and movable between a third position and a fourth position; and a second housing which surrounds the second valve; wherein the apparatus defines a first opening, a second opening, and a receiver passage between the first and second openings. In another embodiment, a movable plunger can be slidably connected to the second valve.

Abstract: A storage tank (25) of a storage system. The storage tank (25) includes a container (30) and a dynamic ventilation line (35) incorporated therein, said dynamic ventilation line (35) being provided with an air-no-fuel valve (45) that shuts off in the presence of fuel, the air-no-fuel valve (45) communicating with an internal space (INT) of the container (30) via an upstream pipe (40) placed inside the container (30), a downstream pipe (50) secured to a wall (31) of the container (30) extending from the air-no-fuel valve (45) and opening out into a dynamic air intake (53) communicating with the outside air (200), said storage tank having at least one communication orifice (300) for communicating with other tanks.

Abstract: A tank arrangement for a vehicle, particularly a truck, includes at least a first fuel tank and a second fuel tank which are connected by a balancing pipe, a suction pipe for feeding fuel to an engine and a return pipe for feeding fuel from the engine to at least one of the fuel tanks. The balancing pipe is provided with a first end to supply fuel to the first tank and a second end to suck fuel from the second tan, wherein a check valve is arranged upstream of the return pipe in the balancing pipe between the at least two tanks allowing a flow direction from the second tank to the first tank and blocking a flow in the reverse direction. Suction of fuel to the engine is from the first tank only. The check valve provides an automatic purging of the system.

Abstract: A valve assembly configured to close off the flow of fluid within a fluid injection assembly includes a fluid column having a first open end and a second open end. A fluid flow path is defined between the first and second open ends of the fluid column, and a saturation valve portion is disposed within the fluid flow path. The saturation valve portion is a first configuration when no fluid is flowing through the fluid flow path, and the saturation valve portion transitions to a second configuration when fluid is flowing through the fluid flow path.

Abstract: The invention relates to an empty container (1) for receiving air- and/or moisture-sensitive compounds, comprising a connecting unit (2) and an inner volume of at least 300 liters and adapters for connecting the empty container, and to the use thereof.

Abstract: Methods, apparatuses and systems are disclosed for supplying gas from a multi-container Bulk Specialty Gases Supply System wherein at least one process parameter is automatically monitored to prevent over-filling of at least a first and second container without operator intervention.

Abstract: The present invention is to provide a circulating-type dispersing system (1) and method for uniformly, effectively, and repeatedly dispersing a large amount of a mixture, and to thereby obtain a processed mixture in a short time. The circulating-type dispersing system (1) for circulating and dispersing a slurry or liquid mixture comprises a device (3) for continuously the mixture, a first tank (4) connected to an outlet of the device (3) for continuously dispersing, a second tank (5) connected to an inlet of the device (3) for continuously dispersing, piping (6) that connects the device (3) for continuously dispersing, the first tank (4) and the second tank (5) in series and formed as a circle, and an adjusting valve (7) provided on the piping (6) between the first tank (4) and the second tank (5) for adjusting the levels of the mixture in the first and second tanks.

Abstract: In the device, according to the invention, the retention tank (7) constitutes a distributing chamber which is connected to the external retention tank (10) being a segment of a gravity-flow channel (11) with its cross-section greater than the cross-section of gravity waste water transfer required in the calculations, located on the line of waste water inflow to the retention tank (7), whereas the capacity of the retention tank (7) is at least two times smaller than the capacity of the external retention tank (10) constituting a segment of the gravity-flow channel (11) with its cross-section greater than the required cross-section of the gravity-flow channel (11) for gravity waste water transfer required in the calculations.

Abstract: A delivery unit for delivering fuel from a fuel reservoir to an internal combustion engine of a motor vehicle. The delivery unit includes a fuel pump arranged in a swirl pot, a fuel filter arranged downstream of the fuel pump, and a valve arranged in the swirl pot. The valve is arranged downstream of the fuel filter and in a zone of the swirl pot that is continuously filled with fuel.

Abstract: A pressure reducing system for fuel gas and a natural gas dewaxing vehicle are disclosed. The pressure reducing system (6) comprises fuel gas pipelines which consist of successively connected a high pressure pipeline (41), a medium pressure pipeline (42) and a low pressure pipeline (43) in the flow direction of fuel gas. The tail end of the low pressure pipeline (43) connects with an combustion apparatus (7). A high pressure relief valve (17), a high pressure air feed valve (21), a heat exchanger (24) and a primary pressure reducing valve subassembly are connected on the high pressure pipeline (41). The heat exchanger (24) is provided with a hot fluid inlet (24A) and a hot fluid outlet (24B), wherein the hot fluid inlet (24A) connects with an hot water apparatus (12), and the hot fluid outlet (24B) connects with an water storage apparatus. The medium pressure pipeline (42) is equipped with a medium pressure relief valve (27) and a secondary pressure reducing valve (29).

Abstract: A pressurized wastewater effluent chlorination system including a treatment tank defining a contact chamber and an aeration chamber. The treatment tank receives wastewater effluent. The system includes a pressure vessel within a liquid chlorine storage container positioned in or near the treatment tank. Preferably, the pressure vessel is a floating vessel having a check valve at its bottom, enabling the vessel to fill with a predetermined amount or measured charge of chlorine depending on the position of a float on the vessel. In response to a timer control or float switch, a valve operates to communicate air pressure from a compressor to the vessel to displace the measured charge of liquid chlorine into the wastewater effluent in the contact chamber. Effluent flow and air discharge into the contact chamber enhances mixing of the chlorine and the effluent.

Abstract: Methods of, and apparatus for, storing and transporting a hazardous fluid, such as a combustible fuel, include methods and means, respectively, for: (a) treating the fluid to reduce its hazardous condition; (b) storing and/or transporting the treated fluid in such a manner that the risk of its hazardous condition remains reduced; (c) thereafter retreating the fluid to restore it to its original hazardous condition so that the fluid may be used in its restored condition. The hazardous fluid may be treated by adding a substance to, or removing a substance from, the fluid, or by changing the state of the fluid. For example, if the fluid is a fuel, it may be treated by cooling it to near or below its freezing temperature to reduce its combustibility, volatility, explosivity and/or ease of ignition.

Abstract: The invention relates to a vehicle tank for liquid fuels, including at least two compartments separated by a baffle, one compartment having a withdrawal line and the baffle having an opening which is close to the bottom and has a valve, and the valve opening independently of a pressure and/or fill level difference in the compartments when the fuel is on the side of the valve facing away from the withdrawal line.

Abstract: Water collection, treatment, and/or reutilization systems and methods are provided. Generally described, a water recovery system may include one or more condensate collectors, each associated with a condensate generator, and a collection tank. The condensate collectors collect condensate generated from the condensate generators and direct the collected condensate to the collection tank via appropriate piping, conduits, etc. The collection tank can thereafter distribute the waste water to a desired end use, such as for use in landscape irrigation, cooling towers, decorative fountains, gray water plumbing (i.e., toilet flushing), etc. The water recovery system may further include an automation, monitor, and control system for automating, monitoring, and/or controlling, for example, the flow of collected waste water, the treatment and/or filtration of the collected waste water, the end use of the collected waste water, etc.

Abstract: A fuel additive system of a fuel delivery system of a vehicle includes an additive tank assembly, and a dosing unit in communication with the additive tank assembly to control the amount of additive dosed to the fuel tank. The additive tank assembly includes a pressurized tank of generally torispherical or ellipsoidal shape, a tank conduit with one end in communication with a sump in the pressurized tank and an opposite end extending out of the pressurized tank, and a valve in communication with the tank conduit near the opposite end thereof and being normally closed under pressure from the pressurized tank. The dosing unit includes a housing having an inlet passage in communication with the tank conduit, and a valve actuator in the inlet passage to displace the valve of the additive tank assembly to an open position once the dosing unit is assembled to the additive tank assembly.

Abstract: A fuel system for an engine includes a fuel line that delivers fuel from a main fuel tank to the engine and a first control device that releases a flow of the fuel from the main fuel tank into the fuel line. An auxiliary fuel tank is connected to the fuel line, and a second control device controls a flow of the fuel between the auxiliary fuel tank and the fuel line. After the fuel is released from the main fuel tank into the fuel line, the second control device fills the auxiliary fuel tank with the fuel from the main fuel tank.

Abstract: A fuel tank for an agricultural vehicle, comprises a main fuel tank 10 having a filler pipe 11 and a separate inlet 15 and a removable auxiliary tank 30 having a second filler pipe 32 and an outlet 36 for supplying fuel into the separate inlet 15 of the main tank. To avoid spillage from the filler pipe of the main tank 10, in one aspect of the invention, a valve 16 is provided in the main fuel tank 10 to close off the second inlet 15 when the fuel level within the main tank 10 reaches a predetermined level. In a second aspect of the invention, spillage is avoided by means of an extension tube 40 which sealingly engages the filler tube 11 of the main tank at its lower end and opens at its upper end into the filler pipe 46 of the auxiliary tank 30.

Abstract: A system and method for extracting active elemental iodine from the contact of water with stored crystal iodine and for introducing the extracted elemental iodine into a water supply line and/or otherwise making the extracted elemental iodine available for an intended use. The system operates by allowing a portion of the water entering from a water supply line to be redirected to a first housing where it makes contact with stored crystal iodine causing to extract active elemental iodine. The iodinized water leaves the first housing and enters a second housing where it makes contact additional stored crystal iodine to help stabilize the elemental iodine concentration. The system can be designed to provide the elemental iodine in more than one potency concentration through the use of a metering valve and different travel routes for the elemental iodine out of the second housing.

Abstract: A system and method for notifying a supplier of gas when a system has changed from a first gas tank to a second gas tank. The system includes a selecting valve, an initiating apparatus, and a calling apparatus. The initiating apparatus is coupled to a selecting valve which is coupled to at least two gas tanks. When the selecting valve moves from the first tank to the second tank the initiating apparatus is activated which initiates the calling apparatus. The calling apparatus notifies a gas supplier or a third party that the user has switched from a first gas tank to a second gas tank allowing the supplier to know when to deliver a replacement gas tank or refill the existing gas tank.

Abstract: A delivery device for delivering fuel out of a fuel tank (1) has a suction connection (13) of a fuel pump (3) connected to a mixing tube (11) of a sucking jet pump (6). The sucking jet pump (6) sucks fuel out of the fuel tank (1) via a foot valve (12). The mixing tube (11) has an overflow valve (17) that controls a connection to a swirl pot (2). This enables the fuel pump (3) to suck fuel out of the fuel tank (1) when the swirl pot (2) is empty.

Abstract: A sprayer nurse vehicle includes an arm arrangement which carries a coupler section that is connected to the discharge end of a fluid transfer conduit that extends from the nurse tank carried by the vehicle. The arm arrangement is constructed so that it may be extended outwardly from the nurse vehicle and moved vertically and laterally. An outer end of the arm arrangement is provided with a fluid coupler section mounting bracket that permits the coupler section to be swiveled about an upright axis and tilted about a transverse axis. A torsion bar is arranged along the transverse axis and is preloaded to counterbalance the weight of the hose and liquid contained therein so as to minimize the effort an operator must exert to tilt the fluid coupler section.

Abstract: A hydraulic control system includes an oil control valve to control oil flow within a valvetrain. The control valve varies the flow rate to actuate an engine component from a first position to a second position based upon fluid pressure from the control valve. Varying the flow rate through the control valve includes increasing the flow rate through the control valve to increase the pressure to a first level to actuate the engine component to the first position. After the engine component is actuated, the flow rate through the control valve is maintained at a level sufficient to maintain the engine component in the first position. To actuate the engine component to the second position the flow rate through the control valve is then decreased. The fluid flow rate through the control valve is then maintained at a level sufficient to maintain the engine component in the second position.

Abstract: A water supply system (1) having at least one pressure pump (9), at least one pressure tank (3) and a plurality of water tanks (2) and (36). A submersible pump (37) is connected to a well (38) and a main water tank (36), which is connected to the other water tanks (2) via hoses (4), is connected to the pressure pump (9). The pressure pump (9), in turn, is connected to the pressure tank (3). Finally, the pressure tank (3) is connected to a plurality of water supply pipes (5) which supply water to varying areas of a plant. The main water tank (36) contains a plurality of float switches (28) at varying levels so as to indicate when the water supply needs to be activated, when the water tanks (2) and (36) are getting low and when the water tanks (2) and (36) are extremely low and the pressure pump (9) needs to be deactivated. When the pressure pump (9) is deactivated, the water is pumped from a submersible pump (37) to fill the water tanks (2) and (36).

Abstract: An automotive fuel tank storage system includes a fuel storage tank installed in a vehicle and a barrier fluid tank containing a supply of barrier fluid. A distribution system connected with the barrier fluid tank and with the fuel storage tank distributes barrier fluid about the outer periphery of the fuel contained within the storage tank in the event of a collision event, creating a boundary layer of more viscous fluid which inhibits exfiltration of the fuel from the fuel storage tank.

Abstract: A system automatically maintains at least one of a pH level and a sanitizing agent level of water in a water feature. The system includes a sensor assembly responsive to at least one of a pH level of the water and a sanitizing agent level of the water. The system further includes a controller which generates control signals in response to signals from the sensor assembly. The system further includes at least one of a first source containing an sanitizing agent material and a second source containing a pH-modifying material. The system further includes a third source comprising a valve assembly and a third container containing a liquid calibrant material. The valve assembly is responsive to at least a portion of the control signals from the controller by selectively allowing the calibrant material to flow from the third container through the sensor assembly to the water feature.

Abstract: In a fuel vapor release suppression system for a fuel tank, a main tank and a sub tank communicate with each other, and the sub tank and a canister communicate with each other. When the main tank has a higher temperature, fuel vapor of the main tank is supplied to the sub tank where the fuel vapor is liquefied. When the main tank has a lower temperature, fuel vapor of the sub tank is supplied to the main tank. At this time, low concentration fuel vapor is supplied from the canister to the main tank, thereby accelerating generation of fuel vapor corresponding to sub tank fuel vapor pressure, so that the sub tank fuel vapor pressure decreases. Therefore, liquefaction is accelerated in the sub tank when the main tank temperature increases. Thus, fuel vapor generated in a fuel tank is effectively liquified irrespective of ambient air temperature.

Abstract: A water treatment product comprising a mixture of at least one active ingredient and a first fluid, wherein the concentration in the product of the active ingredient is at least 50% on a weight basis and the viscosity of the product is at least 2,000 centipoise or 2 pascal seconds, the product adapted to be further diluted upon addition to a second fluid stream to be treated.

Abstract: An on-board refueling system for vehicles. The refueling system includes a coil reel and a fuel pump. The coil reel has a forward end and a rearward end, a handle proximate the forward end, and a nozzle attached to the forward end. The nozzle is configured to engage a siphon hose. The fuel pump is configured to be interconnected between the rearward end of the coil reel and a fuel tank through a tee connector. A handle is attached proximate the forward end of the coil reel. The nozzle can be configured with a one way valve to prevent fuel from draining when the coil reel is not in use. A coil box can be provided for the coil reel. An on/off valve, such as a petcock valve, is interconnected between the connector tee and a carburetor. An on/off switch can be interconnected to the fuel pump to enable remote operation of the fuel pump.

Abstract: A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size in comparison with the flotation cell or cells to which it is connected which enables less expensive construction and reduced operating costs in terms of both the equipment and the plant as a whole. The fluid level control apparatus comprises a vessel having a valve positioned therein which includes a valve body structured with a curved surface which provides selective and finite control of fluid flowing through the vessel of the control apparatus. In one embodiment at least one of the inlet and outlet of the control apparatus exhibit a cross-sectional area taken transverse to the intended fluid flow therethrough having a substantially horizontal dimension which is greater than a substantially vertical dimension.

Abstract: A transfer line for the transfer of fluid or powder-like substances from one or more sources to an outlet characterized in that the transfer line comprises at least one movable section, optionally including associated equipment such as one or more pumps or filters. The movable line section to be cleaned is coupled to a cleaning station. Water for a first washing is transferred through the movable line section and preferably at least for a part recirculated a number of times. The used water is drained off. Fresh water for a second washing is transferred through the movable line section. After transferring the used water from the second wash tank into the first wash tank, water from a third wash tank is transferred through the movable line section to the first wash tank. The washings collected in the first wash tank can be reused as a first washing for a next movable line section to be cleaned.

Abstract: A fuel feed apparatus has a flange and a sub-tank detachable each other in its axial direction. A connector protrudes from the flange toward the sub-tank, and opposes to a space formed in the sub-tank. The connector is received in the space when the flange is mounted on the sub-tank. Therefore, the connector can be prevented from interference with a pump module eccentrically arranged in the sub-tank. The space is defined in the opposite side of the fuel pump, so that the inner space of the sub-tank is widely secured and efficiently used. Thus, distance between the flange and the sub-tank can be reduced, so that the height of the fuel feed apparatus can be reduced.

Abstract: An airplane fuel supply system includes a wing fuel tank that is formed from a wing tip fuel tank having a wing tip fuel pump; a central fuel tank having a central fuel pump; and a wing root fuel tank having a wing root fuel pump. Fuel movement from the wing tip fuel tank to the central fuel tank is allowed by a flapper valve, and fuel movement from the central fuel tank to the wing root fuel tank is allowed by another flapper valve. When the fuel delivery volume of the wing tip fuel pump is represented by Vt, the fuel delivery volume of the central fuel pump is represented by Vc, the fuel delivery volume of the wing root fuel pump is represented by Vr, and the fuel delivery volume from a collector tank to the engine is represented by Ve, the fuel delivery volumes Vt, Vc, Vr, and Ve are set so as to satisfy the relationships Vr>Ve, Vt+Vc>Ve, and Vc<Ve. This can minimize the size of the fuel pumps for supplying fuel from the airplane wing fuel tank to the engine.

Abstract: A mobile water modifying system adapted to be readily interposed into a water pipe structure or network extending between a preconstructed facility and an external water supply is provided. The system can receive water from the water supply, modify the water, and transfer the modified water to the facility. The system includes a plurality of valved connectors to connect to the water pipe structure and control water pressure as the system is interposed into the water pipe structure or network. Different modes of water modification can be effected by incorporating different types of water modifiers in the system. These water modifications include heating water, cooling water and treating water to remove organic and non-organic contaminants. Methods also are provided for correcting an interruption in the supply of usable water to a facility and for avoiding such interruptions during repair or replacement at the facility.

Abstract: A control system for maintaining the liquid levels in a plurality of reservoirs connected in series includes one or more nested control modules. The nested control module, one for each reservoir, includes a proportional only level controller in electrical communication with the respective level sensor of each respective reservoir and is adapted to produce an output that becomes a set point for one or more respective PID flow controllers adapted to control the respective outflows of said respective reservoirs. The control system results in maintaining liquid levels in the reservoirs while substantially eliminating flow and level oscillations.

Abstract: A closed fluid transfer system is provided including a fluid source in fluid communication with an inlet of a hollow body. The hollow body includes a flexible and expandable wall, typically composed of elastomeric material, at one end thereof. An outlet is formed distal from the flexible and expandable wall. Fluid is transported from the fluid source to the hollow body through a tube by a pump or the like. The hollow body may constitute a fluid conditioning chamber. Alternatively, the hollow body serves as a fluid source for an energy production device. The hollow body may also be fluidly connected to a vehicle for use as a fuel tank.

Abstract: The Fuel supply system reduces fuel quantity initially supplied and ineffective residual quantity of fuel. A throat in the shape of a passage is provided at a bottom portion of a sub-tank that supplies fuel from the fuel tank to the interior of the sub-tank by a jet pump. The throat has a suction port communicating with the exterior of the sub-tank and a supply port communicating with the interior of the sub-tank. The throat is inclined with respect to a bottom surface of the tank so that the height of the throat increases gradually from the suction port toward the supply port. The sub-tank has a check valve for opening and closing the supply port. This check valve prevents the fuel in the sub-tank from flowing out to the exterior of the sub-tank through the throat and becomes substantially vertical during valve closing.