Abstract: The fixed or variable displacement hydraulic motor-pump (1) includes a motor-pump central rotor (3) in which a hydraulic cylinder (14) is arranged, the rotor (3) being in sealed contact with an input-output spool valve (43) connecting the cylinder (14) with a motor-pump frame (2) while a hydraulic piston (13) moves in the cylinder (14) to push, using a hydraulic piston guided plunger (18), a tangential arm (22) articulated in the central rotor (3), and a tangential arm antifriction roller (28) on a motor-pump peripheral rotor (29) synchronized in rotation with the motor-pump central rotor (3).

Abstract: A brake valve is insertable into a working line of a hydrostatic travel drive. The brake valve has a main stage with a first port connected to a variable displacement pump of the drive system and a second port connected to a motor of the drive system. The main stage has a slide piston positionable in a valve bore. In a freewheeling position, a connection is maximally open with minimal throttling between the two ports. In pressure-reducing positions, a regulable, throttled connection is open from the second to the first port to brake the motor. In pressure-limiting positions, a regulable, throttled connection is open from the first to the second port to begin to throttle a pressure medium flow from the variable displacement pump to a pressure protection mechanism. The positions lie on a center line of the main stage along which the slide piston is movable.

Abstract: A wave energy converter for converting energy from a wave motion of a fluid into a different form of energy includes at least one rotor that is coupled to at least one energy converter. The rotor has a rotor base that has two sides with respect to the rotational plane of the rotor. At least one coupling body is attached to each side of the rotor base.

Abstract: A free-piston type stirling engine 1 includes a power piston 30 which partitions the inside of a case 2 into a work space 80 and a bounce space 90, a displacer 40, a communication hole 32 provided in the power piston 30, a displacer rod 41 extending from the displacer 40 and passing through the communication hole 32, a first displacer supporting spring 50 elastically supporting the displacer rod 41 at its proximal end, and a second displacer supporting spring 60 elastically supporting the displacer rod 41 at its distal end. The power piston 30 and the displacer 40 reciprocate along a central axis X of the case 2 with a phase difference therebetween by expansion and compression of a working gas in the work space 80, and bias forces of the first displacer supporting spring 50 and the second displacer supporting spring 60 restrict tilting of the displacer 40 and the displacer rod 41 with respect to the central axis X.

Abstract: Provided is a heat storage device which can stably store heat by storing heat within a fixed temperature range. A heat storage device (10) of the present invention is characterized in being provided with a heat resistant frame (11), which is filled with one kind of alloy or mixed salt having a predetermined eutectic temperature, alternatively, a heat resistant frame (11), which is filled with two or more kinds of alloys or mixed salts having different eutectic temperatures, by having the alloys or the mixed salts adjacent to each other in the order of eutectic temperature levels with a partitioning wall (11a) therebetween.

Abstract: The present disclosure concerns liquid ring systems, including (i) a fixed or rotating casing adapted to contain a liquid, (ii) a rotor located within the casing and having at least one impeller, (iii) a liquid ring formed by rotation of the rotor or the casing, and (iv) a plurality of gas cells formed between the inner surface of the liquid ring and vanes of the impeller. For example, at least one compressing gas cell is in fluid connection with at least one expanding gas cell integrated with the rotor. A liquid valve may include a small gas cell with a reciprocating liquid surface and at least two fluid connections having a free pathway between the connections during an angle of rotation of the rotor and a closed pathway between the connections during 360° minus the angle of rotation.

Abstract: An internal combustion engine, in particular a stationary gas engine, includes a combustion chamber to which a propellant can be fed from a first propellant source via a combustion chamber pipe, and a pre-combustion chamber to which a flushing gas can be fed via a flushing gas pipe. A flushing gas mixer , in which a propellant to be fed via a propellant pipe from the first propellant source or from a second propellant source, and a synthesis gas to be fed via a synthesis gas pipe, can be mixed is provided. A mixer outlet opens into the flushing gas pipe, and the synthesis gas can be generated by a reformer to which a fuel can be fed from a fuel source via a reformer feed pipe. The reformer outlet of the reformer opens into the synthesis gas pipe, and a cooling device for cooling the synthesis gas is provided.

Abstract: An exhaust system for treating exhaust gas from an internal combustion engine is disclosed. The system comprises a three-way catalyst (TWC), a fuel reformer catalyst located downstream of the TWC, and a fuel supply means located upstream of the fuel reformer catalyst. The exhaust gas is split into two portions. The first portion of the exhaust gas bypasses the TWC and contacts the fuel reformer catalyst in the presence of fuel added from the fuel supply means, and is then recycled back to the engine intake. The second portion of the exhaust gas is contacted with the TWC and is then utilized to heat the fuel reformer catalyst before being expelled to atmosphere. The exhaust system allows for maximum heat exchange from the exhaust gas.

Abstract: A system and method for capturing waste heat and converting the captured waste heat into mechanical or electrical energy.

Abstract: The invention proposes a concentrating solar power plant, which includes a heat storage unit allowing operation of the power plant for some hours on the base of accumulated heat. An important feature of the plant constitutes its ability to operate with direct steam generation (DSG) immediately in the concentrating solar collectors. Heat charging of the heat storage unit are performed with changing temperature of superheated steam, which circulates via the heat storage unit and a sub-field of the concentrating solar collectors; this sub-field serves solely for temperature elevation of the circulating superheated steam. Heat discharging of the heat storage unit is executed by heating the circulated superheated steam, which is delivering from a mixer-evaporator. This mixer-evaporator serves, in turn, for evaporation of condensate obtained in a condenser of a turbine unit; the evaporation process is based on utilization of sensible heat of the superheated steam.

Abstract: Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.

Abstract: A thermal power generation system includes a combustor burning oxygen and fuel with supercritical CO2, a turbine driven by the supercritical CO2 and water vapor fed from the combustor, a low-pressure supercritical CO2 storage storing low-pressure supercritical CO2 from the turbine, a compressor compressing the low-pressure supercritical CO2, a high-pressure supercritical CO2 storage storing high-pressure supercritical CO2 from the compressor, and a high-pressure supercritical CO2 feeder supplying between the high-pressure supercritical CO2 storage and the combustor, in which the high-pressure supercritical CO2 feeder supplies the high-pressure supercritical CO2 to the combustor at a constant pressure.

Abstract: A steam power plant with a low-pressure turbine is suggested with a second low-pressure turbine on a separated shaft line including a separate generator. The second low-pressure turbine is connected to an additional condensing system without cooling water consumption, thus allowing to maintain the power output at a high level, even if the main condensing system has a reduced capacity due to cooling water restrictions.

Abstract: A solid oxide fuel cell system (10) comprises a solid oxide fuel cell stack (12) and a gas turbine engine (14). The solid oxide fuel cell stack (12) comprises a plurality of solid oxide fuel cells (16). The gas turbine engine (14) comprises a compressor (24) and a turbine (26). The compressor (24) supplies oxidant to the cathodes (22) of the fuel cells (16) via an oxidant ejector (60) and the oxidant ejector (60) supplies a portion of the unused oxidant from the cathodes (22) of the fuel cells (16) back to the cathodes (22) of the fuel cells (16) with the oxidant from the compressor (24). The fuel cell system (10) further comprises an additional compressor (64), an electric motor (66) arranged to drive the additional compressor (64), a cooler (70) and a recuperator (72). The compressor (24) supplies oxidant via the cooler (70) to the additional compressor (64) and the additional compressor (64) supplies oxidant to the oxidant ejector (60) via the recuperator (72).

Abstract: An engine fuel control system includes a metering valve to control fuel flow between the supply and delivery line with a pressure drop control regulating the pressure across the valve and maintain a substantially constant pressure across the valve. The fuel control system includes a backup system controllable by a pullback signal to operate the pressure control, thus increasing the pullback signal reducing the fuel flow between the supply and delivery line. The fuel control system detects a start of an engine overthrust event, and when the upward runaway is caused by the arrested overthrust event. The fuel control system's controller which (i) determines the overthrust detection, the pullback signal increase rate and the pullback signal offset, (ii) sends the pullback signal to the backup system at the rate of increase, and (iii), reduces the pullback signal to the backup system when the upward runaway is arrested by the offset.

Abstract: The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles positioned within an end cover, a common fuel tube extending through the end cover and in communication with the micro-mixer fuel nozzles, a linear actuator to maneuver the common fuel tube and the micro-mixer fuel nozzles, and a sealing support structure positioned between the end cover and the common fuel tube.

Abstract: The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles and a fuel injection system for providing a flow of fuel to the micro-mixer fuel nozzles. The fuel injection system may include a number of support struts supporting the fuel nozzles and for providing the flow of fuel therethrough. The fuel injection system also may include a number of aerodynamic fuel flanges connecting the micro-mixer fuel nozzles and the support struts.

Abstract: The present application provides a variable volume combustor for use with a gas turbine engine. The variable volume combustor may include a liner, a number of micro-mixer fuel nozzles positioned within the liner, and a conical liner support supporting the liner.

Abstract: The present application and the resultant patent provide a combustor for use with a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles and a fuel injection system for providing a flow of fuel to the micro-mixer fuel nozzles. The fuel injection system may include a center hub for providing the flow of fuel therethrough. The center hub may include a first supply circuit for a first micro-mixer fuel nozzle and a second supply circuit for a second micro-mixer fuel nozzle.

Abstract: Combustor liners made using additive manufacturing techniques can employ cooling hole patterns which are not possible, or at least time consuming or expensive, to make using traditional subtractive manufacturing techniques. By additively manufacturing floatwall panels, cooling holes may be placed along axes that transect features on the floatwall panel, such as mounting studs, spacers, cooling pedestals, and rails.

Abstract: A combustor liner (30) for a can-annular gas turbine engine (10) and a method for constructing such a liner are provided. The combustor liner includes an annular wall member (32) A cooling channel (34, 42, 50, 54, 56, 58) is formed through the wall member and extends from an inlet end of the liner to an outlet end of the liner A property of the cooling channel may be varied along a length of the cooling channel. The cooling channel may be formed through the combustor liner using an electro-chemical machining (ECM) process or a three dimensional printing process (3DP).

Abstract: A heat shield for a gas turbine engine includes a hot side with one or more raised features that extend therefrom.

Abstract: The application provides an apparatus for augmenting the power produced by a Brayton-cycle gas turbine system of the type having an air compressor for producing compressed air, a combustor for heating said compressed air and a fuel and producing hot gases, and a gas turbine responsive to the hot gases for driving said air compressor and a load, and for producing exhaust gases.

Abstract: Integrated gas turbine combustion engine and ion transport membrane system comprising a gas turbine combustion engine including a compressor with a compressed oxygen-containing gas outlet; a combustor comprising an outer shell, a combustion zone in flow communication with the compressed oxygen-containing gas outlet, and a dilution zone in flow communication with the combustion zone and having one or more dilution gas inlets; and a gas expander. The system includes an ion transport membrane oxygen recovery system with an ion transport membrane module that includes a feed zone, a permeate zone, a feed inlet to the feed zone in flow communication with the compressed oxygen-containing gas outlet of the compressor, a feed zone outlet, and a permeate withdrawal outlet from the permeate zone. The feed zone outlet of the membrane module is in flow communication with any of the one or more dilution gas inlets of the combustor dilution zone.

Abstract: A two-shaft gas turbine having high operability is provided. The two-shaft gas turbine includes: a gas generator having a compressor, a combustor and a high pressure turbine; a power turbine having a low pressure turbine; a load connected to the power turbine; a motor/generator capable of rotatably driving the gas generator and capable of extracting power from the gas generator; electric equipment controlling the rotational driving and the power extraction by delivering electric power between the electric equipment and the motor/generator; and a control device controlling the electric equipment, wherein the combustor has a plurality of combustion regions to which a fuel is supplied through fuel adjustment means which are independent from each other, and the control device controls a delivery amount of the electric power delivered by the electric equipment corresponding to the number of combustion regions to which the fuel is supplied.

Abstract: The present application provides a variable volume combustor for use with a gas turbine engine. The variable volume combustor may include a liner, a number of micro-mixer fuel nozzles positioned within the liner, and a linear actuator so as to maneuver the micro-mixer fuel nozzles axially along the liner.

Abstract: The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of fuel nozzles, a pre-nozzle fuel injection system supporting the fuel nozzles, and a linear actuator to maneuver the fuel nozzles and the pre-nozzle fuel injection system.

Abstract: The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles, a fuel manifold system in communication with the micro-mixer fuel nozzles to deliver a flow of fuel thereto, and a linear actuator to maneuver the micro-mixer fuel nozzles and the fuel manifold system.

Abstract: The present application provides a combustor for use with flow of fuel and a flow of air in a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles positioned within a liner and an air bypass system position about the liner. The air bypass system variably allows a bypass portion of the flow of air to bypass the micro-mixer fuel nozzles.

Abstract: A method and device for igniting a turbomachine combustion chamber including alternately: an intake phase of a fluid into a chamber through an intake port, during which a piston compresses an elastic mechanism under pressure of the fluid such that the elastic mechanism applies onto a piezoelectric element a force sufficient for the piezoelectric element to induce between the electrodes an electric voltage enabling an electric arc to be generated, until the piston reaches a predetermined position for closing a valve for sealing the intake port; and an exhaust phase of the fluid, during which the elastic mechanism pushes back the piston to induce a fluid ejection out of the chamber through an exhaust port, and the valve is open.

Abstract: A gas turbine engine includes a fan and a compressor. A combustor drives a turbine, including a first turbine with a shaft to drive the compressor. A fan drive turbine drives the fan through a speed reduction. A sensor senses a speed of rotation of the fan and communicates sensed speed information to a control. The control develops an expected speed for the fan. A problem is identified should the sensed speed be less than the expected speed by more than a predetermined amount. A method is also described.

Abstract: The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles and a fuel injection system for providing a flow of fuel to the micro-mixer fuel nozzles. The fuel injection system may include a number of support struts supporting the fuel nozzles and providing the flow of fuel therethrough. The support struts may include an aerodynamic contoured shape so as to distribute evenly a flow of air to the micro-mixer fuel nozzles.

Abstract: In this gas turbine, at a downstream portion of a transition piece of a combustor, inner surfaces of a pair of lateral walls facing each other in a circumferential direction of a turbine rotor form inclination surfaces that incline down to a downstream end of the transition piece in a direction approaching the transition piece of another adjacent combustor that gradually draws closer as it goes to the downstream side of the transition piece in an axis direction.

Abstract: A heat exchange module is provided for a turbine engine. The heat exchange module includes a duct and a plurality of heat exchangers. The duct includes a flowpath defined radially between a plurality of concentric duct walls. The flowpath extends along an axial centerline through the duct between a first duct end and a second duct end. The heat exchangers are located within the flowpath, and arranged circumferentially around the centerline.

Abstract: The present invention describes the design and fabrication of Multi-Material-Blades used as active regenerative regenerators in active regenerative magneto-caloric or electro-caloric engines. The blades consist of a plurality of elements (2) that divide the blade body along its length. Each element (2) is made of a different magneto-caloric or electro-caloric material selected appropriately, and a plurality of dedicated channels (3) penetrates the blade body (1) and extends along the length of the blade. The dedicated channels (3) can be provided with fluid mixing structures, porous layers or hydrophobic coatings to reduce the HE loss in an active regenerative engine. The Multi-Material-Blades are obtainable by ink jet printing techniques to reduce costs. The Multi-Material-Blades can further have a curved shape to form an involute blade body (1). All measures can improve the performance of active regenerative magneto-caloric or electro-caloric engines, and lay the basis for commercial solutions.

Abstract: A microchannel cooling device includes a heat sink having a liquid refrigerant flow channel having a microscopic cross section and connected to a heat source thermally, and a thermoelectric element provided on the heat sink and extending parallel to a direction of extension of the liquid refrigerant flow channel.

Abstract: A cold box having a cooling receptacle filled with a dry protective gas in which is accommodated a rack loaded with tube-shaped vessels. The cooling receptacle is covered by a displaceable lid which is associated with a lid part and which is preferably formed by an outer lid and a rotatable inner lid integrated in the outer lid so that the cooling receptacle is completely covered in every position of the lid. At least one of the through-holes provided in the inner lid can be arranged over a respective tube-shaped vessel by a coordinated displacement of the outer lid and rotation of the inner lid so that the tube-shaped vessel located under the through-hole in alignment therewith can be filled with a sample through the through-hole by means of a commercially available pipette tip/dispensing needle of an automated pipetting device.

Abstract: The invention is directed to an energy efficient thermoelectric heat pump assembly. The thermoelectric heat pump assembly preferably comprises two to nine thermoelectric unit layers capable of active use of the Peltier effect; and at least one capacitance spacer block suitable for storing heat and providing a delayed thermal reaction time of the assembly. The capacitance spacer block is thermally connected between the thermoelectric unit layers. The present invention further relates to a thermoelectric transport and storage devices for transporting or storing temperature sensitive goods, for example, vaccines, chemicals, biologicals, and other temperature sensitive goods. Preferably the transport or storage devices are configured and provide on-board energy storage for sustaining, for multiple days, at a constant-temperature, with an acceptable temperature variation band.

Abstract: A cooling device and methods of using the cooling device are described. The cooling device includes a flexible, elongated body member having a first end portion and a second end portion, the elongated body member forming an elongated cavity extending substantially between the first end portion and the second end portion, the cavity having a first substance disposed within the cavity. The cooling device further includes at least one rupturable compartment contained within the cavity, the compartment having a second substance disposed within the compartment. The cooling device also includes fastening means disposed on at least one of the first end portion and the second end portion for detachably fastening the first end portion to the second end portion to secure the cooling device around a circumference of a body part.

Abstract: The present invention provides an apparatus (10) suitable for cooling hot condensate in a piping. The apparatus comprises the use of a vortex tube (103) together with liquid such as water. A container (101) is provided to hold the liquid where the vortex tube is disposed inside the container (101). A pipe coil (133) for conveying the hot condensate is provided around the tube (104). The apparatus (10) will generate mist for cooling the hot condensate in the piping.

Abstract: An example cooling system for a computer includes a canister that holds a compressed fluid and a gas cooling device having an inlet port and a chilled gas outlet port. In addition, the cooling system includes a valve that couples between the canister and the inlet port of the gas cooling device, the valve selectively couples the compressed fluid to the inlet port. Further, the cooling system includes a pressure regulator that coupled between the canister and the inlet port of the gas cooling device, wherein the pressure regulator selectively regulates the flow rate of gas to the inlet port of the gas cooling device. Still further, the cooling system includes a chilled gas duct system that couples to the chilled gas outlet port, the chilled duct system configured to direct the chilled gas to be incident upon at least one heat generating element of the computer system.

Abstract: Variations of the devices and methods disclosed herein pertain to an extended travel spiral flexure bearing having spiral arms, each of the spiral arms including an attachment point at the inner end thereof and at the outer end thereof. Variations of the bearing may also include a bearing clamp to be attached to the spiral flexure bearing at the attachment points, the bearing including an outer bearing portion to be disposed on the outer periphery of the flexure bearing and an inner bearing portion to be disposed at the center of the flexure bearing. Variations also pertain to a micro check valve assembly that includes a valve base, a valve cover, and a flexure that are all bonded together. The valve being closed when the valve door rests on the valve seat and open when the valve door is lifted from the valve seat.

Abstract: A method for removing gas from a storage vessel and returning it along with a liquid feed to the vessel. The gas such as natural gas is withdrawn from the storage vessel and fed to a venturi device where it is combined with a feed of liquid to the venturi device. The gas will combine with the liquid feed in the venturi device while the pressure in the storage vessel will be decreased thereby reducing the need for venting and increasing efficiency of the storage vessel.

Abstract: A dynamic system for determining an optimal liquid fill level and ullage space for a cryogenic liquid storage tank based on the temperature of the liquid being dispensed into the tank, and the desired operating pressure for an application. A means for selecting a desired operating pressure, such as a dial, is located external to the storage tank. A temperature sensor measures the temperature of the cryogenic liquid being dispensed. An optimal fill level and ullage space is calculated, and communicated to a liquid level sensor and flow control valve.

Abstract: In a closed circuit a heat transfer fluid is cycled from a first heat transfer zone to a second heat transfer zone via a downcomer, all arranged in an ambient. The first heat transfer zone, housed inside a first box, comprises a first heat transfer surface across which the liquefied stream is brought in a first indirect heat exchanging contact with the heat transfer fluid. The heat transfer fluid is allowed to condense, and a part of the condensed portion of the heat transfer fluid is allowed to accumulate within the first box thereby forming a liquid layer of the heat transfer fluid. Liquid is drawn from the liquid layer and passed through the downcomer to the second heat transfer zone. The second heat transfer zone comprises a second heat transfer surface across which the heat transfer fluid is brought in a second indirect heat exchanging contact with the ambient.

Abstract: A chiller system and a control method thereof includes a plurality of chiller modules in which a refrigeration cycle is performed to supply cold water, a main control device generating an operation signal to simultaneously or successively operate the plurality of chiller modules, a module control device provided in each of the plurality of chiller modules to control an operation of each of the plurality of chiller modules on the basis of the operation signal of the main control device, and a starting device communicably connected to the module control device to selectively apply power into the plurality of chiller modules.

Abstract: A cooling assembly includes a device chamber containing a device chamber cooling medium, a heat exchanger including at least one cooling surface in contact with the device chamber cooling medium, a control unit configured to control the heat exchanger, a humidity sensor configured to detect a humidity level in the device chamber, and a receptacle. The control unit is configured to perform a dehumidification operation as a response to the humidity level exceeding a predetermined threshold value in the device chamber. The dehumidification operation includes lowering a temperature of the at least one cooling surface in order to condensate water from the device chamber cooling medium on the at least one cooling surface. The receptacle is configured to receive water dripping from the at least one cooling surface.

Abstract: A blanket for cryogenically cooling at least a portion of a workpiece is provided. The blanket includes a body having an interior surface configured to face the workpiece. The blanket also includes a plurality of nozzles located on the interior surface of the body. The blanket further includes one or more tubes configured to deliver cryogenic liquid to the plurality of nozzles for spraying upon at least a portion of the workpiece. A method and system for cryogenically cooling at least a portion of a workpiece utilizing a blanket are also provided.

Abstract: A method of interacting with a refrigeration appliance using a portable electronic device, wherein the refrigeration appliance comprises a refrigeration system comprising one or more refrigeration components and a controller adapted to control the one or more refrigeration components and wherein the portable electronic device comprises an application for interacting with the controller of the refrigeration appliance. The method comprising the steps of positioning the portable electronic device in proximity to the refrigeration appliance, establishing a wireless communication connection between the refrigeration appliance and the portable electronic device, and displaying information on the portable electronic device corresponding to the refrigeration appliance to which the portable electronic device is connected.

Abstract: An ice maker comprises: an ice-making vessel having a cylindrical shape, cooling means, a block ice making mold which is placed inside; and a screw type agitator. The block ice making mold includes: a main mold body comprising a plurality of connected L-shaped plates projected radially outward from the central axis; a base plate which is joined to each L-shaped plate, and the main mold body includes a screw insertion part which is formed by cutting off another end side of the central axis by a predetermined length along a side of the central axis from the another end side toward the one end side of the central axis.