Abstract: A disposable cassette (1) is disclosed having an inlet port (4), an outlet port (5), and a heat exchanger element (3) with a fluid flow channel (9, 10, 15, 29) defined therein, the element being configured for conductive heat transfer between an exterior source and liquid in the fluid flow channel through at least one wall member of the heat exchanger element. The average cross sectional area of the outlet part of the fluid flow channel is substantially smaller than the average cross sectional area of the inlet part of the fluid flow channel. Furthermore is disclosed an assembly for connecting a source of intravenous fluid to a patient, the assembly comprising a sealed sterile packaging enclosing the disposable cassette, a first tube for connecting said source of intravenous fluid to the inlet port of the disposable cassette, and a second tube for connecting the outlet port of the disposable cassette to an intravenous catheter.

Abstract: A tank container comprising a container for a liquid to be stored or transported, a pipe circuit comprising a heat transfer circuit part mounted to the wall of the container, which pipe circuit is filled with glycol, a storage vessel connected to the pipe circuit for holding an amount of glycol, a heating device designed for selectively heating the glycol in the pipe circuit, and a pump in the pipe circuit for circulating the glycol, wherein a second heating device is provided in or around the storage vessel, which heating device is designed for maintaining the temperature of the glycol in the storage vessel at at least 25° C., preferably at least 35° c.

Abstract: A cryogenic fuel system having a priming circuit for a machine is disclosed. The fuel system may have a tank, configured to hold a cryogenic fluid, and a pump. A first passage may connect the tank and the pump, and a second passage may be configured to hold a cooling fluid and be located to cool the first passage.

Abstract: An anti-freezing valve (1) comprises: a valve body (2) made of metal material (M), defining a passageway (5) for a liquid; an open/close member (9), mounted displaceable in the valve body (2), an anti-freezing arrangement. The valve body (2) is a valve body obtained by casting, which defines a valve seat (8), with respect to which the open/close member (9) is displaceable in a slidable manner between a raised position of opening and a lowered position of closing of the passageway (5). Embedded in the metal material (M) constituting the valve body (2) is an axially extended hollow member (13), belonging to the anti-freezing arrangement, for the passage of a thermovector fluid (F), the hollow member (13) having respective ends (14) accessible from outside the valve body (2), for connection to a circuit of the thermovector fluid (F).

Abstract: A surface water heating system for irrigation is described. The irrigation apparatus comprises an irrigation manifold, a heat exchanger, a first conduit system, and a second conduit system. A geothermal heated fluid, e.g. water, flows through the first conduit system. A first pump extracts the geothermal heated water from a geothermal source and conducts the heated water through the heat exchanger, and returns the geothermal water, now cooled, to the geothermal water source. Surface water flows through the second conduit system. A second pump extracts water from a higher quality water resource such as a surface water resource and conducts the illustrative surface water through the heat exchanger. Subsequently, the surface water is delivered to the irrigation manifold. Within the heat exchanger, heat is transferred from the geothermal heated water to the higher quality water resource. The geothermal heated water does not come into contact with the illustrative surface water within the irrigation apparatus.

Abstract: The present invention relates to a process for improving the devolatilization of polymer slurry produced in an olefin polymerization reactor. The process is characterized in that it involves an adjustment of the temperature of the interior surface of the flash line for periodically transferring polymer slurry from the polymerization reactor to a downstream processing unit. In particular, in accordance with the present process, the temperature of the interior surface of the flash line is adjusted to a temperature which is equal to or higher than the softening temperature of the polymer passing through said flash line whereby said temperature is higher in a first half of the length of the flash line than in the remaining length of the flash line.

Abstract: A valve for regulating the temperature of an oil flow, includes a first inlet channel, a second inlet channel and an outlet channel, the second inlet channel and the outlet channel being capable of cooperating with a temperature regulator. One of the inlet channels includes an oil flow regulator controlled by a computer by generation of an electrical set value respecting a control law configured within the computer, the control law being slaved by an oil flow temperature sensor, the electrical set value controlling opening and closing of the regulator, the regulation law generating an alternation of open and closed states of the flow regulator so as to achieve a required average temperature of the oil flow over a given period.

Abstract: A butterfly valve with an undulating sealing surface, which has an inflatable annular seal mounted in a housing. A disk is pivotally mounted in the housing and has an edge with an undulating sealing surface and a peripheral sealing edge. The undulating sealing surface of the disk and a sealing face of the annular seal have non-mating profiles when the valve is in an unsealed condition. Pressure in a chamber proximate the annular seal causes the face of the annular seal to expand and deform and the face forms a high-pressure seal between the sealing ridge and the annular seal. Also includes a method for stopping delivery, of a conduit transportable material through a butterfly valve.

Abstract: A method is provided for heating an electrically conductive fluid, including steps of: (i) circulating the fluid in a circuit from an inlet to an outlet, through an inlet path of the circuit in which the fluid flows in a first average direction and an outlet path of the circuit in which the fluid flows in a second average direction substantially opposite to the first direction; (ii) subjecting the fluid to a specific ohmic heating while the fluid flows through the outlet path; and (iii) transferring heat from the fluid flowing through the outlet path to the fluid flowing through the inlet path by thermal conduction through an at least partially first electrically insulated partition wall. An associated heating device is also provided.

Abstract: Apparatus for providing a heated cleaning fluid to a vehicle surface having an inlet port for receiving an amount of fluid; a housing bounding a reservoir in fluid communication with the inlet port; and an outlet port in fluid communication with the reservoir for dispensing an amount of heated fluid. A heater element heats fluid that passes from the inlet to the outlet port through the reservoir. A heat exchanger in thermal contact with the heater element for conveying heat to the fluid within the reservoir has a strut that divides fluid entering the housing through the inlet port into two flow paths and elongated fins that extend outwardly from the strut at transverse angles that bound fluid flow channels for fluid moving through said reservoir. A control circuit energizes the heater element with a voltage to heat the heating element and the fluid passing from the inlet to the outlet through the reservoir.

Abstract: A valve has a body, a fluid inlet duct and two fluid outlet ducts delimited by the body, an intersection formed at an area where the fluid inlet duct opens into the two fluid outlet ducts, and a butterfly valve disposed in the intersection. The butterfly valve is operable to be actuated between a first extreme position in which the butterfly valve directs the fluid mainly toward the first outlet duct and a second extreme position in which the butterfly valve directs the fluid mainly toward the second outlet duct. In the first extreme position, the butterfly valve has a first portion partially blocking the second outlet duct and, in the second extreme position, the butterfly valve has another portion blocking the first outlet duct.

Abstract: A flow cell with a temperature-control chamber for holding a fluid, the temperature of which is to be controlled, whose boundary wall is formed at least partially by a thin foil for transferring heat between a temperature-control element and the fluid. The foil has several layers joined with one another, such that the layer that faces the fluid is a plastic layer, and at least one other layer is of a metal.

Abstract: A shut-off valve (10) for cisterns, tanks and similar, in particular for cisterns and tanks transported or driven by articulated road vehicles and agricultural vehicles, includes a metallic body (12) with an upper opening (28) as well as inlet and outlet mouths of a fluid; the valve integrates two paired gates (22), connected between them and operable to be lifted and lowered with a lever and constituting the shut-off means of this fluid. A duct (30) is formed at least partly around the body (12) from which it is hydraulically independent, with opposed inlet and outlet openings (34,36) formed on respective and integral extensions (32) of the duct itself; the duct is formed integrally with the said valve body (12) upon its forming, and shares a common wall (12?) with the valve body for conduction of heat from fluid in the duct to the interior of the valve body.

Abstract: A gate valve, comprising a body (1), a gate element (2), which is movable in the body, transversally with respect to the flow path (3) between at least two positions, i.e. a first position, where the flow path (3) is open, and a second position, where the flow path is closed, and means (4) for moving the gate element (2) between at least said two positions; said gate valve body (1) comprising a first wall element (9) and a second wall element (10) and a space (11) left therebetween for the gate element (2), and an edge part (12), which edge part, when bent, forms a support surface for the first wall element (9) and the second wall element (10) of the gate valve body; in said edge part (12), there is arranged a channel space (13), including at least one opening (14), preferably several openings, which channel space opens into the space (11) left between the first wall element (9) and the second wall element (10) for conducting medium into said space.

Abstract: An arrangement for providing liquefied natural gas (LNG) as fuel for propulsion of a ship (1, 6) having cargo tanks (2, 7) for liquefied gas comprises a source of LNG (3, 8) and at least one first heat exchanger (41) for vaporizing and/or heating the LNG directly or indirectly with a warmer medium (44). The warmer medium is boil-off gases from the cargo tanks (2, 7) being re-liquefied in the process.

Abstract: A unit for producing energy comprising an enclosed housing, a heat producing gas driven engine mounted within the housing, a rotatable device for producing electrical energy mounted within the housing and coupled to the engine for rotatably driving the device, the water-carrying piping coiled around the interior of the housing, the engine, the rotatable device and the piping immersed in oil within the housing, and including a means for circulating the oil in a prescribed path within the housing.

Abstract: Means for supplying fuel from a storage tank (1) containing heavy fuel oil, said means comprising a collector (2) arranged above at least part of a heating device such as a heating coil (3, 4) within said storage tank (1), said collector (2) having the shape of a hat or a cap with an open bottom, said collector (2) thereby collecting heated oil ascending from the heating coil (3, 4), whereby heated oil in the collector (2) is captured by a suction device (5, 6) within the collector (2) to be transported to a consumer outside the storage tank (1) by a fuel pump (7).

Abstract: Manual-valve pistons, manual-valve assemblies comprising the manual-valve pistons, and compressed-gas systems comprising the manual-valve-assemblies are disclosed. A manual-valve piston for sealing a compressed-gas conduit may comprise a head portion, a sealing portion, and a stem portion between the head portion and the sealing portion. When the manual-valve piston in a conduit, a gap is defined between a blocking rim of the head portion that allows compressed gas to be trapped in an isochoric thermal isolation zone adjacent to the stem portion. The isochoric thermal isolation zone protects sealing rings seated in the sealing portion from extremely cold compressed gas being introduced into the compressed-gas system. Manual-valve assemblies comprise a manual-valve piston coupled to a coupling body. Compressed-gas systems comprise a fuel-storage vessel, a refueling port, internal conduits, and a manual-valve assembly disposed in one of the internal conduits.

Abstract: An arrangement having at least one valve, in particular a vacuum valve, with a closure member of the valve for closing a through-opening of the valve and a drive for adjusting the closure member between a closed position, in which the closure member closes the through-opening, and at least one open position, in which the closure member opens the through-opening at least in regions. For the application of heat to the closure member, the valve has a chamber for a heat transfer fluid, connected in a thermally conducting manner to the closure member and closed off, preferably permanently, in relation to the through-opening. A supply line of the arrangement opens into the chamber, supplying heat transfer fluid for the application of heat to the closure member to the chamber. At least one heat exchanger for the application of heat to the heat transfer fluid is arranged in the supply line.

Abstract: A valve for use with a turbocharger is disclosed. The valve may have a valve element movable to selectively direct a flow of fluid. They valve may also have a control portion connected to move the valve element, and a cooling portion configured to receive a pressurized cooling medium from the turbocharger.

Abstract: A device includes a first hot fuel bleed, a second cold fuel bleed, a fuel pressure regulator including a fuel inlet line, a fuel outlet line and a fuel pressure set point line, the pressure of the outlet line being set by the regulator to a fixed divergence from the pressure of the set point line, a first connector to connect the first bleed to the inlet line of the regulator and the second bleed to the set point line of the regulator, when a first pressure of the first bleed is greater than or equal to a second pressure of the second bleed and to connect the first bleed to the set point line of the regulator and the second bleed to the inlet line of the regulator when the first pressure is lower than the second pressure, and a second connector.

Abstract: A high-temperature butterfly valve (100) is provided. The high-temperature butterfly valve (100) includes a valve assembly (110), a valve actuator (123) configured to couple to the valve assembly (110), with the valve actuator (123) including an actuator shaft (126) configured to couple to a valve shaft (121) of the valve assembly (110), and a fluid cooling system (225) configured to flow a cooling fluid through at least a portion of the valve actuator (123).

Abstract: The invention includes a method for continually circulating a fluid in a system, in the absence of an external pumping mechanism, by providing a fluid, an active space capable of generating a higher pressure zone and causing a contiguous lower pressure zone, a passive space, and a porous medium disposed between the active space and the passive space, and generating a pressure differential relationship between the active space and the passive space causing the fluid to circulate freely in both directions between the active space and the passive space, across the porous medium, without the aid of an external pumping system, such that the fluid circulation defines a self-acting self-circulating fluid system, and to the system created thereby.

Abstract: Disclosed are systems and apparatus adapted to control a temperature of a process fluid in an instrument. In one aspect, the systems and apparatus are adapted to control fluid temperature provided to a feed tank. The feed tank may feed a metering system and metering line of an instrument such as a clinical analyzer. The fluid temperature control system includes a process fluid inflow, a process fluid outflow, a first fluid path fluidly coupled to the process fluid inflow and outflow, and at least one heat exchanger thermally coupled to the first fluid path, wherein the heat exchanger is adapted to extract heat for at least one heat-generating component of the instrument. Controlling a temperature of the process fluid at the feed tank improves metering accuracy. Methods of operating the system are provided, as are other aspects.

Abstract: A pendulum gate valve including an expandable gate which pivots when unexpanded to selectively block a vacuum or other pressure-differential passage. The valve includes a valve plate sealing one side of the passage and a ring or barrier plate abutting an opposed side of the passage when the gate member is expanded. A compression spring biases apart the valve plate and ring to close the valve by means of respective two-stage hangers attached thereto, extending along the spring, and having distal ends capturing the spring. Pneumatic pressure applied to a pneumatic cavity formed between the middles of the two-stage hangers and accommodating the spring forces apart the valve plate and ring to open the valve in the blocking position. Thereby if pressure fails, the valve fails to a sealed state. The axially movable valve or barrier plate is advantageously water cooled to allow use with a heated processing chamber.

Abstract: The invention discloses a method capable of enhancing the heat exchanging and humidifying performance of a warming stove and a warming stove with a humidifying function. Water fog is guided into the initial end of an air channel of a stove body, so that the water fog flows through a heat exchange region in the air channel along with circulating air; and the water fog is gasified under a high temperature, so that the circulating air is changed into wet air in the process and carried into a warming space from an outlet at the tail end of the air channel.

Abstract: A system for providing a constant flow of cooled hydraulic fluid to a dual clutch assembly of a transmission of a motor vehicle includes a hydraulic fluid cooler, a pressure control valve and a logic valve. The system is also capable of providing additional hydraulic fluid to the dual clutch assembly. The hydraulic fluid cooler provides hydraulic fluid to each clutch of a dual clutch assembly and to a logic valve. The logic valve is operable to divert additional fluid flow to either of the clutches of the dual clutch assembly.

Abstract: The present invention concerns a coating apparatus including a coating unit for applying a slurry-like kneaded electrode material prepared by kneading an electrode material and a solvent, a pump for feeding the kneaded electrode material under pressure to the coating unit, and a temperature raising unit for raising the temperature of the kneaded electrode material before coating to a predetermined temperature range where a storage modulus of the kneaded electrode material becomes substantially constant. This enables stable coating in an early stage after the start of coating.

Abstract: A thermally optimised circulation fluid system is proposed which comprises a circulation line, a circulation pump unit and a control unit. The circulation pump unit and the circulation line together form a circulation circuit. The circulation pump unit is configured for transferring an amount of thermal energy directly or indirectly to a fluid located in the circulation line. The control unit is configured for adjusting the amount of thermal energy which is transferrable to the fluid.

Abstract: A fluid supply system configured to be utilized with a coolant system of an engine, the fluid supply system including; a fluid tank, a fluid pump coupled to the fluid tank and a thermal management system in thermal communication with the fluid tank and the fluid pump, wherein the thermal management system includes; a first coolant circuit in thermal communication with the fluid tank and a second coolant circuit in thermal communication with the fluid pump, wherein flow of coolant from the coolant system through the first fluid circuit and second fluid circuit is in parallel when coolant flows through the second fluid circuit.

Abstract: The invention relates to a hydrocarbon transport device intended to be immersed and arranged at an extraction wellhead, comprising a first pipe through which a first fluid leaving the extraction well flows, the first pipe being arranged in an external protective casing, a piloting system to pilot the temperature in the first pipe controlling an activation element of a regulating system for regulating a heat exchange between the first pipe and the liquid medium filling the immersed external casing, the regulating system comprising at least a second pipe arranged around the first pipe and delimiting an annular space enclosing at least one regulating fluid, this regulating fluid being injected into or expelled from the annular space by the activation element of the regulating system.

Abstract: Temperature-controlled pressure regulators are described. An example temperature-controlled pressure regulator described herein includes a regulator body having an inlet fluidly coupled to an outlet via a first passageway. A heat block is disposed within the regulator body and receives at least a portion of the first passageway. The heat block is to provide heat to the process fluid as the process fluid flows through the heat block via the first passageway, which separates the process fluid from the heat block.

Abstract: A butterfly valve for forming an enhanced seal between the disk and the annular seal through use of unmated surfaces on the sealing face of the disk and the sealing face of the annular seal.

Abstract: The present invention relates to microfluidic systems and methods for controlling the flow of fluid using passive components engineered into the microchannels. These passive flow components include fluidic diodes, fluidic capacitors, and fluidic inductors. Various fluidic circuits are provided to control fluid flow including fluid rectifiers, fluid band pass filters, and fluid timers.

Abstract: A butterfly valve with an undulating sealing surface, which has an inflatable annular seal mounted in a housing. A disk is pivotally mounted in the housing and has an edge with an undulating sealing surface and a peripheral sealing edge. The undulating sealing surface of the disk and a sealing face of the annular seal have non-mating profiles when the valve is in an unsealed condition. Pressure in a chamber proximate the annular seal causes the face of the annular seal to expand and deform and the face forms a high-pressure seal between the sealing ridge and the annular seal. Also includes a method for stopping delivery of a conduit transportable material through a butterfly valve.

Abstract: A pressure reducing valve for gas is provided in which a valve mechanism having opening in a central part a valve hole that communicates with a low pressure passage and a low pressure chamber and including a valve body that is capable of being seated on a valve seat facing a valve chamber communicating with a high pressure passage is housed within a body such that the valve body is connected to a pressure receiving member operating in response to pressure of the low pressure passage and the low pressure chamber, wherein the body (16) is formed by joining a plurality of body members (18, 19) having different strengths, the entirety of the high pressure passage (30, 64) being formed, among the plurality of body members (18, 19), within the body member (18) that has a high strength, and at least part of the low pressure passage (85, 86, 94, 119) and the low pressure chamber (83, 84, 116) being formed, among the plurality of body members (18, 19), within the body member (19) that has a low strength.

Abstract: A valve has a body, a fluid inlet duct delimited by the body, two fluid outlet ducts into which the fluid inlet duct opens, an intersection formed by the two fluid outlet ducts, a butterfly valve disposed in the intersection, and a motor, to which the butterfly valve is connected, for actuating the butterfly valve between a first extreme position in which the butterfly valve directs the fluid mainly toward the first outlet duct and a second extreme position in which the butterfly valve directs the fluid mainly toward the second outlet duct. The motor is placed between the outlet ducts in the vicinity of a connecting zone connecting the two outlet ducts to one another. The butterfly valve is mounted in front of the connecting zone so that the butterfly valve forms a screen against the fluid for the connecting zone.

Abstract: The subject of the present invention is a method for removing pollution from a confined environment containing an interior space bounded by a wall, involving the following steps: the confined environment which has a leak is placed in a sealed chamber having for example an inlet for introducing a gas and a pump for pumping a gas and the gas contained in the chamber and the gas contained inside the space are simultaneously pumped through the leak so that the pressure difference across the wall is always below a wall damaging threshold. Another subject of the invention is a related device for removing pollution from a confined environment.

Abstract: A flow regulator valve having multiple stages is described herein. The flow regulator valve provides a base amount of propane when the engine is idling and provides additional propane to the engine based on the engine's requirements.

Abstract: It is aimed to simultaneously supply hot water at a required temperature to a high-temperature heating appliance and hot water at a required temperature to a low-temperature heating appliance, the low-temperature heating appliance requiring hot water at a temperature lower than a temperature required by the high-temperature heating appliance, and to enhance efficiency by collecting surplus heat when the temperature of the hot water to be supplied to the low-temperature heating appliance is adjusted. A pipe through which flows the hot water at a high temperature to be supplied to the high-temperature heating appliance is branched into a first supply pipe and a second supply pipe. Heat exchange is effected between the hot water flowing through the first supply pipe and return water which has been supplied to a first appliance.

Abstract: A surface water heating system for irrigation is described. The irrigation apparatus comprises an irrigation manifold, a heat exchanger, a first conduit system, and a second conduit system. A geothermal heated fluid, e.g. water, flows through the first conduit system. A first pump extracts the geothermal heated water from a geothermal source and conducts the heated water through the heat exchanger, and returns the geothermal water, now cooled, to the geothermal water source. Surface water flows through the second conduit system. A second pump extracts water from a higher quality water resource such as a surface water resource and conducts the illustrative surface water through the heat exchanger. Subsequently, the surface water is delivered to the irrigation manifold. Within the heat exchanger, heat is transferred from the geothermal heated water to the higher quality water resource. The geothermal heated water does not come into contact with the illustrative surface water within the irrigation apparatus.

Abstract: A heated fuel delivery system for vegetable oil or other fuels of temperature dependent viscosity, which may be used as fuel for a diesel engine. The system includes one or more heated fuel lines and/or a heated fuel tank to heat the fuel and reduce its viscosity for more efficient use. Recovered engine heat from the engine coolant system is transferred to heat the fuel.

Abstract: The present invention relates to a device for reusing greywater, comprising: a water feed (2) for supplying the greywater to be reused, a storage tank (4) for storing the greywater, a water discharge (6) for discharging water stored in the storage tank to a water-consumer (8), and a heat exchanger (10) for extracting heat from the supplied greywater. The invention also relates to a method for reusing greywater using such a device.

Abstract: A compressed hydrogen tank system that includes a heatable hydrogen pressure regulator. Hydrogen is removed from the compressed tank through a suitable pipe where the pressure drop of the hydrogen is controlled by the pressure regulator. The high pressure side of the regulator is typically at a relatively low temperature as the hydrogen is being removed from the tank, and the low pressure side of the regulator is typically at a relatively high temperature as the hydrogen is removed from the tank. A heat source is provided to heat the pipe on the high pressure side of the regulator to prevent the hydrogen from becoming cold as the hydrogen is being removed from the tank, thus preventing the temperature of the hydrogen within the tank from decreasing.

Abstract: The invention concerns a transmission oil circuit with an oil pump for feeding oil or another fluid from an oil sump or corresponding fluid sump; with a heat exchanger, the oil flows through, for evacuating the heat from the oil; with a work pressure valve, against which the oil pump conveys the oil, so as to bring the conveyed oil to a preset work pressure for pressure actuation, applying hydraulic pressure or conveying hydraulic pressure to switching valves and/or other transmission components and/or other units outside the transmission, which are arranged in the flow direction upstream of the work pressure valve in a row with respect thereto or in the flow direction downstream of a supply line, which branches off in the transmission oil circuit upstream of the work pressure valve.

Abstract: A hanging water heater includes a machine body installed inside with plural quartz heating tubes respectively composed of a quartz external tube having its opposite ends sealed, and a quartz internal tube positioned in the quartz external tube, installed therein with a remote-infrared-ray heating member and having one end connected with an electrode terminal. Each quartz external tube has its lower sidewall bored with water intakes and its upper wall bored with a vapor vent. The machine body is further provided with a water inlet and a water outlet communicating with a circulating tube. The circulating tube communicates with the vapor vent of the quartz external tube, having its wall bored with lots of through holes. The hanging water heater performs heat conduction by vapor, and light and heat radiation, impossible to produce water stains and able to economize energy.

Abstract: A process for storing a monomer phase which is liquid under the conditions of storage and comprises methacrylic monomers to an extent of ?95% by weight and has been obtained by condensation out of a gaseous phase or by melting a crystalline phase, in a storage vessel, in which polymer of the monomer present in dissolved form in the liquid monomer phase is removed therefrom on the route from its generation into the storage vessel, and also a process for withdrawing liquid monomer phase from the storage vessel in which polymer of the monomer present in dissolved form in the monomer phase is likewise removed.

Abstract: A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Abstract: A water cooled valve is provided in the form of a check valve, an air purge valve, a distributor valve, a combination air purge and distributor valve and the like for use in the liquid fuel system of a gas turbine. A movable valve member controls the flow of fluid through the valve's fuel circuit. A separate cooling circuit circulates cooling water through the valve near or alongside the valve member. The water is of a lower temperature than the high temperature liquid fuel, and thereby carries away heat transferred to the valve by the fuel. In one form, the cooling circuit is formed in part by a helical groove in the periphery the valve body housing the valve member. A sealed water jacket surrounds the valve body and has dedicated supply and return ports for coupling the valve to a water supply via water lines. The water ports are positioned tangentially to induce swirling flow inside the valve.

Abstract: A modular insulated water tank comprising a hollow insulated support structure, a liner, and an insulated cover, with the support structure being comprised of two or more separable, vertically stackable retention tiers, the liner being a flexible container capable of retaining fluids within the interior of the support structure, and the cover being capable of enclosing contents contained within the interior of the water tank. So configured, the modular insulated water tank is capable of retaining a large quantity of fluid, such as water, at an elevated temperature for an extended length of time, for purposes of using the heat energy stored therein for space heating purposes or for domestic hot water use.