A pressure vessel includes a body defined by a cross-sectional shape along a plane transverse to a centerline. The cross-sectional shape includes an inner surface defining an interior void and a wall extending from the inner surface to an outer surface defining an exterior of the body. The inner surface includes an arcuate region and a gabled region. The gabled region forms a curved interior peak opposite a center of the arcuate region. The arcuate region and the gabled region together define a teardrop shape. The wall includes a curved segment along the arcuate region having a curved segment minimum thickness at a location opposite the interior peak, an apex aligned with the interior peak and having an apex thickness, and thickened regions adjacent intersections between gabled region and the arcuate region and having greater radial thickness than the curved segment minimum thickness.
F17C 13/00 - VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES - Details of vessels or of the filling or discharging of vessels
B33Y 80/00 - Products made by additive manufacturing
A system for vane pitch actuation includes an electric motor with a rotary output shaft defining a drive axis. A worm shaft defines a drive axis, and is operatively connected to be driven in rotation about the drive axis by the rotary output shaft of the electric motor. A sync ring is defined about an engine axis that is orthogonal to the drive axis. The sync ring is configured to rotate about the engine axis over a range of positions for driving a plurality of variable pitch stator vanes to each have a pitch based on position of the sync ring. The sync ring includes a plurality of gear teeth for actuation of the sync ring by the electric motor.
A fire extinguisher includes a source conduit, a flow control device connected to the source conduit, and a supply conduit. The supply conduit is connected to the flow control device, is fluidly coupled therethrough to the source conduit, and is thermally coupled to the source conduit to communicate heat between pressurized fire suppression agent entering the flow control device through the source conduit and expanded fire suppression agent issuing from the flow control device through the supply conduit. Fire suppression systems and methods of controlling flow of fire suppressant agents are also described.
A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
A62C 37/36 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
A62C 99/00 - Subject matter not provided for in other groups of this subclass
A solenoid drive circuit includes a power source, a first solenoid control circuit connected to the power source, the first solenoid control circuit including a first solenoid coil and a first solenoid control switch that controls a flow current through the first solenoid coil and a first regenerative drive circuit connected to the first solenoid control circuit and that includes a first regenerative capacitor. The first regenerative drive circuit can include a first diode bridge formed of four diodes (D1, D2, D3 and D4) and that has a positive input, a negative input, a positive output and a negative output, wherein the first regenerative capacitor is connected between the positive and negative inputs.
In accordance with at least one aspect of this disclosure, a method includes installing a welding tool into a repair tool holder, ultrasonic welding a repair sheet to a part to be repaired with the welding tool, removing the welding tool from the repair tool holder, installing a machining tool into the repair tool holder, and ultrasonic machining a portion of the repair sheet that is welded to the part to be repaired to match an a predetermined geometry of the part to be repaired with the machining tool.
B23K 20/10 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
SELF-REGULATING AND GRAVITY-INDEPENDENT DEVICE FOR HYDROGEN RECOMBINING WITH AN INTEGRATED PASSIVE HEAT SINK FOR LOW-EARTH ORBIT AND DEEP-SPACE EXPLORATION SPACECRAFT
The present disclosure provides for hydrogen recombiner assemblies utilizing an integrated passive heat sink. More particularly, the present disclosure provides for flameless hydrogen recombiner assemblies utilizing an integrated passive heat sink to convert leaked hydrogen (e.g., inside a spacecraft) to water vapor. In example embodiments, the present disclosure provides for self-regulating and gravity-independent hydrogen recombiner assemblies having an integrated passive heat sink for low-earth orbit (LEO) and deep-space exploration crewed spacecraft, with the hydrogen recombiner assemblies configured to convert leaked hydrogen (e.g., inside a spacecraft) to water vapor.
A system having: a power switching circuit providing a drive current to a load, and having: a power source; first and second serially connected switches convert DC power from the power source into AC current to form the drive current, or vice versa; a first high-bandwidth current sensor circuit measures high-side current pulses through the first switch and provides a first analog signal, proportional to the high-side pulses; a second high-bandwidth current sensor circuit measures low-side current pulses through the second switch and provides a second analog signal is proportional to the low-side pulses; a signal processing device coupled to the first and second current sensor circuits performs steps of: converting the first analog signal to a first digital signal and the second analog signal to a second digital signal; and reconstructing the drive current and obtaining its cycle average values from the first and second digital signals.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
A fuel cell system includes: a gas turbine having a combustion chamber and a turbine; a hydrogen fuel cell configured to generate electrical energy from input air and input hydrogen; an air flow path for providing air from a source of fresh air as input air to the fuel cell and to the combustion chamber; and a closed hydrogen loop for providing hydrogen from a liquid or compressed hydrogen source to the fuel cell and to the combustion chamber. The system further includes: a hydrogen recirculation loop receiving hydrogen from the liquid or compressed hydrogen source and hydrogen used by the fuel cell to provide cooled used hydrogen, The hydrogen recirculation loop combines the cooled used hydrogen with hydrogen from the liquid or compressed hydrogen source to provide to the fuel cell as the input hydrogen.
A controller operable to perform cleaning system control operations includes generating, using a processor system, a first electronic cleanliness measurement (ECM) associated with a cleaning target. Based at least in part on a determination that the first ECM exceeds a threshold, the processor system is used to generate a first cleaning system protocol. The processor system executes the first cleaning system protocol to control a cleaning system operable to clean debris from the cleaning target.
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
B08B 3/02 - Cleaning by the force of jets or sprays
B08B 13/00 - Accessories or details of general applicability for machines or apparatus for cleaning
An analog twin circuit device includes a sensing element and a signal conditioning circuit. The sensing element includes a signal input terminal configured to receive an input signal and a signal output terminal configured to output a signal. The signal conditioning circuit includes a first circuit input terminal connected to the signal input terminal and a second circuit input terminal connected to the signal output terminal such that the sensing element interacts directly with the input signal and delivers an output signal to the signal output terminal. The signal conditioning circuit physically models the sensing element.
G01R 1/20 - Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
A method for detecting an insulation fault in an unearthed electrical system, the system comprising a first rail and a second rail, each rail having an insulation resistance. The method comprises, in an initial stage: connecting the first rail to a relative ground through a first resistive component, wherein the first rail has an initial stage first rail voltage in the initial stage; and charging a capacitor to a capacitor voltage using the first rail, wherein the capacitor voltage is indicative of the initial stage first rail voltage. In a subsequent stage: connecting the second rail to the relative ground through a second resistive component; wherein the first rail has a subsequent stage first rail voltage; and determining if a fault has occurred by using the capacitor voltage and the subsequent stage first rail voltage.
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
A heat exchanger core includes a plurality of first medium channels along which a first medium is directed from a first first medium channel end to a second first medium end, and a plurality of second medium channels along which a second medium is directed from a first second medium channel end to a second second medium channel end. The first medium channels and/or the second medium channels are formed to have a first portion having a first cross-sectional shape and one or more second portions having a second, different cross-sectional shape. The channel transitions smoothly from the first to the second cross-sectional shape.
Hamilton Sundstrand Space Systems International, Inc. (USA)
Inventor
Wu, Peggy
Al-Nadawi, Yasir
Abstract
A computer system includes a processor system electronically coupled to a memory. The processor system performs processor system operations that include accessing configuration information of a product-under-development (PUD). The configuration information of the PUD is provided to one or more physics-informed simulation models (PISMs) of the processor system. The one or more PISMs are used to predict debris-related properties of the PUD operating in an environment.
Hamilton Sundstrand Space Systems International, Inc. (USA)
Inventor
Radawiec, Rochelle
O'Connor, Bradley
Luker, Kelly
Snead, Kelsey
Mccauley, Devin
Strickland, Julie
Abstract
A biometric monitoring system for monitoring the health of user includes an article of clothing configured for placement over or contacting a foot of user. The article includes: a body portion; a transparent sole portion connected to the body portion and arranged such than the body portion is place over the foot of the user the transparent sole portion is arranged on or near a sole of the foot of the user; a sensor bed arranged and configured to contact the sole portion; and one or more biometric sensors on the sensor bed arranged and configured to transmit light through the transparent sole portion so that it contacts the sole of the foot of the user and receive one or more reflected signals from the sole of the foot of the user to measure the health of the user.
A distributed hybrid propulsion system is provided and includes an engine assembly that includes an engine, which is non-propulsive, an energy storage element, a motor-generator and a common bus to which the engine assembly, the energy storage element, the motor-generator and the controller are connected. The common bus includes bi-directional power flow control elements, which are controllable to manage bi-directional power flow between the engine assembly, the energy storage element and the motor-generator.
B60W 20/13 - Controlling the power contribution of each of the prime movers to meet required power demand in order to prevent overcharging or battery depletion
B60L 50/16 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
A supplemental power generation arrangement for an aircraft includes a duct defined in the aircraft, a ram air turbine located in the duct and driven to rotate about a turbine axis by a ram airflow through the duct. One or more accessory components are operably connected to the ram air turbine. The ram air turbine is configured to provide rotational energy to power the one or more accessory components.
The system includes a main supply line. A variable displacement pump (VDP) is in fluid communication with an inlet line and with an outlet line. An actuator is operatively connected for direct control of the variable displacement mechanism. A pressure sensor is operatively connected to the outlet line to generate feedback indicative of pressure in the outlet line. A controller is operatively connected to receive the feedback from the pressure sensor, and operatively connected to the actuator to control the variable displacement mechanism based on the feedback. An actuation system is in fluid communication to be supplied with fluid from the outlet line for use in hydraulic actuation. The actuation system includes an actuation return line connecting the hydraulic actuation system in fluid communication to return fluid to the main supply line.
F04B 49/12 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by varying the length of stroke of the working members
A rotor is provided and includes a central hub, an outer ring assembly comprising magnetic elements and back-to-back curved webs radially interposed between the central hub and the outer ring assembly.
H02K 1/274 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 15/03 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
19.
HYBRID LIQUID AND AIR COOLING OF HIGH-POWER PERMANENT MAGNET MACHINE ROTOR
An electric machine includes a housing, a stator positioned in the housing and including a stator winding, and a rotor positioned in the housing configured to rotate about a machine axis and electromagnetically interactive with the stator across an air gap between the rotor and the stator. The rotor includes a rotor core, a plurality of permanent magnets located at the rotor core, and a rotor sleeve enclosing the rotor core and the plurality of permanent magnets. The stator is cooled via a flow of cooling oil, and the rotor is cooled via a flow of cooling air directed through the air gap between the rotor sleeve and the stator.
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 9/02 - Arrangements for cooling or ventilating by ambient air flowing through the machine
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
A hybrid airfoil bearing for a shaft is provided and includes airfoil bearing components and passive magnetic bearing components. The airfoil bearing components include a top foil immediately surrounding the shaft and additional components. The passive magnetic bearing components are integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.
According to some embodiments of the present disclosure, an aircraft electric motor is disclosed. The motor includes a rotor comprising a plurality of magnet segments arranged on a frame of the rotor. The motor also includes an output shaft operably coupled to the rotor radially inward from the plurality of magnet segments and a stator. The stator includes a radially outer rim and at least one winding wrapped about a plurality of stator teeth. The stator is arranged around the rotor and includes cooling fins extending radially outward from the radially outer rim. The cooling fins include wide fins that have a width ww distributed about the radially outer rim and thin fins that have width wt. The thin fins are disposed between the wide fins. The width of the wide fins ww is greater than the width wt of the thin fins.
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
22.
REGENERATION USING LIQUID LOOP OF ENVIRONMENTAL CONTROL SYSTEM
An environmental control system includes an inlet configured to receive a medium and a compressing device fluidly connected to the inlet. The compressing device includes a compressor operably coupled to a turbine. An outlet of the compressor is fluidly connected to an inlet of the turbine such that the medium is provided to the compressor and the turbine in series. At least one air-liquid heat exchanger is arranged in fluid communication with the outlet of the compressor and the inlet of the turbine. The at least one air-liquid heat exchanger is also connected to a liquid loop containing a liquid. At least one air-liquid regeneration heat exchanger is fluidly connected to the liquid loop at a location upstream from the at least one air-liquid heat exchanger.
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned
B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
F25B 9/06 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
23.
Metal plated plastic ACM part with internal thermally adaptive structure
A component, having: a base having beads formed of with first and second thermoplastic polymers, respectively having first and second coefficients of thermal expansion (CTE), where each of the beads has an outer surface and an inner surface that abut each other; a lower support section formed on the base, having a mixture of a third thermoplastic polymer and a catalyst formed with metal; an upper support section on the component, formed on the lower support section via electrolysis deposition, a metallic coating, to thereby control thermal expansion and contraction of the component; and reinforcement fibers embedded the base, the lower support section and the upper support section.
A method includes using two parallel electrohydraulic servo valves EHSVs with a single transfer valve to move an actuator during a normal operation mode. The method includes upon failure of one of the EHSVs, using the single transfer valve to disconnect a non-operational one of the EHSVs and continuing to move the actuator with a functional one of the EHSVs in a backup mode.
F15B 13/044 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
F15B 20/00 - Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
25.
Reactive Current Injenction for Active Aerospace Rectification
A power generation system includes a generator configured to output alternating current (AC) power, an active rectifier configured to receive the AC power from the generator, convert the AC power to direct current (DC) power, and output the DC power. A current injector is connected to the active rectifier and is configured to provide an injection current to power flowing through the active rectifier. The injection current includes a reactive component.
H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
B64D 27/35 - Arrangements for on-board electric energy production, distribution, recovery or storage
H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
A motor drive system includes: a motor; a controller; a first energy source configured to supply electrical energy to the motor, a second, different energy source configured to supply electrical energy to the controller, and an energy storage device. The energy storage device is configured to supply the controller with electrical energy when there is a loss of energy from the second energy source. The motor drive system is configured to, during a braking operation, charge the energy storage device with regenerative energy from the motor.
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
B60W 20/13 - Controlling the power contribution of each of the prime movers to meet required power demand in order to prevent overcharging or battery depletion
An actuator assembly includes an actuator and an actuator housing. The actuator includes a main body portion and an actuator shaft. The actuator housing encloses the main body portion of the actuator. The actuator housing includes an outer layer, an inner ceramic fiber layer, an interior chamber that is bounded by the inner ceramic fiber layer, one or more inflow vents for receiving a first fluid, and one or more outflow vents for discharging the first fluid from the actuator housing.
In accordance with at least one aspect of this disclosure, a system includes a rotor configured to rotate about a rotor axis within a pump housing. In embodiments, the rotor includes, a first end face configured to interface with a stationary port plate, a plurality of vane slots defined in the rotor arranged circumferentially about the rotor axis configured to accept a respective vane therein, and a plurality of lands between each vane slot, wherein each land includes a portion of the first end face. The rotor also includes, a lubrication pad defined in the first end face of at least one land between neighboring vane slots such that the lubrication pad is fed by the neighboring vane slots to induce buildup of a lubrication film between the first end face and the stationary port plate in the lubrication pad.
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
29.
Active rectifier with phase locked varying switch frequencies
A power distribution system includes a variable frequency alternating current (AC) generator, an active rectifier electrically connected to the variable frequency AC generator such that AC power output from the variable frequency AC generator is rectified by the active rectifier, and a switching controller configured to detect a fundamental frequency of the AC power output and lock an active switch rate of the active rectifier to an integer multiple of the fundamental frequency.
An airfoil, having: a body defining a leading edge and a trailing edge, wherein the body comprises: a base having an outer boundary extending longitudinally from a first end to a second end and transversely from a first side to a second side; and beads within the outer boundary, wherein each of the beads has a bead void, and wherein one or more of the beads includes: damping element within the bead void; or stiffening element extending across the bead.
H10N 10/17 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
A variable displacement pump can include a rotor having a plurality of vanes, and a cam ring surrounding the rotor and vanes. The vanes can be configured to extend from the rotor and contact an inner cam surface of the cam ring. The pump can also include one or more radial actuators configured to apply a radial force to the cam ring to control a position of the cam ring and the pumping action.
F04C 14/22 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
F04C 2/356 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
32.
PRESSURE SENSITIVE STOP STROKE FOR VARIABLE DISPLACEMENT PUMPS
A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. The VDP includes a variable stop configured to vary minimum displacement of the variable displacement mechanism based on position of the variable stop relative to a housing of the VDP. A pressure sensing valve (PSV) is operatively connected between the inlet line and the outlet line to actuate a stop member to adjust stopping position of the variable stop based on pressure differential between the inlet line and the outlet line.
F04B 49/16 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by adjusting the capacity of dead spaces of working chambers
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
33.
ACTIVE DISPLACEMENT CONTROL AGAINST TEMPERATURE TARGET
A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the BPV to vary flow from the BPV inlet to the bypass line. An electromechanical actuator (EMA) is operatively connected to actuate the variable displacement mechanism. A temperature sensor is operatively connected to the outlet line to generate sensor output indicative of fluid temperature in the outlet line, wherein the temperature sensor is operatively connected to a controller for active control of the EMA and/or of the actuator based on temperature in the outlet line.
A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. The BPV includes a thermostatic actuator configured to control recirculation flow amount through the BPV based on fluid temperature in the BPV. A method includes thermostatically controlling a bypass valve (BPV) to recirculate flow from the outlet line to an input line of the VDP in the event of flow demanded by the downstream system dropping below a predetermined low threshold of flow through the VDP based on fluid temperature in the BPV.
F04B 49/16 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by adjusting the capacity of dead spaces of working chambers
An aircraft system includes a thermal load, a controller, a tank for storing a cooling liquid, and a supply system for moving the cooling liquid outwardly of the tank and through a control valve to the thermal load. A controller is programmed to control the supply system. A conduit downstream of the thermal load is configured to communicate the cooling liquid to a fuel metering unit. The fuel metering unit also receives fuel from a high pressure pump. The fuel metering unit is configured to deliver a mixture of the cooling liquid and the fuel into a combustor on an associated aircraft engine. The controller programmed to determine a percentage solubility of the cooling fluid into the fuel at a detected temperature and pressure of the fuel reaching the fuel metering unit. The cooling fluid is combustible and soluble in the fuel. An aircraft and a method are also disclosed.
A fluid pump system can include a controllable pump configured to generate a pump flow through the controllable pump and to output an output flow to an output line. The fluid pump system can include a flow split system configured to be in fluid communication with the controllable pump in a bypass state such that the flow split system is configured to divert a portion of the pump flow to maintain a desired output flow to the output line but to also allow the controllable pump to maintain a minimum pump flow through the controllable pump to maintain pump temperature below a high temperature threshold.
A rotor of an electric machine includes a rotor core, a plurality of permanent magnets located at the rotor core, and a rotor sleeve enclosing the rotor core and the plurality of permanent magnets. One or more sleeve cooling channels are positioned between a radially outer surface of the rotor core and a radially inner surface of the rotor sleeve and extend axially along a length of the rotor. One or more radial cooling channels extend radially outwardly from an interior of the rotor core to the one or more sleeve cooling channels. The one or more radial cooling channels are configured to convey a flow of cooling fluid from the interior of the rotor core to the one or more sleeve cooling channels.
A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. A relief valve (RV) includes an RV inlet in fluid communication with the outlet line, and an RV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the RV to change function of the RV between a first function and a second function. The first function is a high pressure relief valve function. The second function is as a wind milling bypass function. A controller is operatively connected to the actuator to control the RV to change back and forth between the first function and the second function.
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. An electromechanical actuator (EMA) is operatively connected to actuate the variable displacement mechanism. A flow sensing valve (FSV) connected in the outlet line. The FSV includes a sensor configured to generate sensor data indicative of flow out of the outlet line. A controller is operatively connected to the EMA to control the variable displacement mechanism based on the sensor data to support flow demands from one or more downstream systems.
F02C 9/30 - Control of fuel supply characterised by variable fuel pump output
F04C 14/24 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves
A controllable pump system can include an inlet line and a pressure controlled pump connected to the inlet line to receive input flow. The pressure controlled pump can have a pressure controlled pump state configured to control a pump output to an output line connected to the pressure controlled pump. The system can include a slew pump connected to the inlet line and configured to output a slew pump pressure, and a slew pressure valve connected to the input line and to a second line and configured to output a control pressure to the pressure controlled pump. The second line can be configured to be in fluid communication with at least the slew pump such that the slew pressure valve can receive the slew pump pressure.
A fuel system can include a main pump assembly having a main fuel pump connected to an input line and configured to pump fuel to a main fuel control via a main fuel control line, a recirculation pump connected to the input line, and a fuel recirculation system connected to the recirculation pump and upstream of the main fuel control. The fuel recirculation system can be configured to select a mode from a plurality of modes. The plurality of modes can include a recirculation mode and a backup mode. The fuel recirculation system can be configured to recirculate fuel from the recirculation pump to a tank through one or more coolers in the recirculation mode, and to provide fuel to the main fuel control in the backup mode.
A system 100 comprising: a gas turbine 110 having a combustion chamber 114; a first heat exchanger HX1 configured to receive a first stream of compressed air CA1 and a stream of liquid hydrogen LH, wherein the first heat exchanger HX1 is configured to transfer heat between the first stream of compressed air CA1 and the stream of liquid hydrogen LH to yield a stream of liquid oxygen LO and a stream of gaseous hydrogen GH; and a second heat exchanger HX2 configured to receive the stream of liquid oxygen LO and a second stream of compressed air CA2, wherein the second heat exchanger HX2 is configured to transfer heat between the second stream of compressed air CA2 and the stream of liquid oxygen LO to yield a stream of gaseous oxygen GO; wherein the system is configured to direct the stream of gaseous hydrogen GH and the stream of gaseous oxygen GO to the combustion chamber 114.
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
A turbine of an air cycle machine, having: a housing; an output shaft that spins about a spin axis; a turbine disposed on the output shaft; a first nozzle defining a first inlet area that directs a first flow into the housing, the first nozzle extending along a first axis that is disposed at a first meridional angle to the spin axis; a second nozzle defining a second inlet area that differs from the first inlet area, the second nozzle directs a second flow into the housing to provide a mixed flow within the housing, the second nozzle extending along a second axis that is disposed at a second meridional angle to the spin axis, the second meridional angle differing from the first meridional angle; and a control valve configured to open and close the second nozzle.
A stator assembly for an electric motor. The stator assembly includes a stator core pack and a sleeve for the stator core pack. The sleeve includes a first portion proximal to a first end of the sleeve and a second portion adjacent to the first portion of the sleeve. The stator core pack is at least partially within the sleeve and the first portion of the sleeve is in contact with the stator core pack. The sleeve is arranged to apply a compressive stress to the stator core pack and the stator assembly is arranged such that the compressive stress applied by the first portion of the sleeve to the stator core pack is greater than the compressive stress applied by the second portion of the sleeve to the stator core pack.
An electric machine assembly includes a rotor core. The rotor core includes a plurality of winding poles extending between a first axial face and a second axial face of the rotor core. A clench lock slot is defined in the first axial face. The clench lock slot includes a first channel section having a first channel width, a second channel section having a width equal to the first channel width, and a converging-diverging section connecting between the first channel section and the second channel section. A first end of the converging-diverging section connects to the first channel section and has a width equal to the first channel width. A second end of the converging-diverging section connects to the second channel section and has a width equal to the first channel width. A clench point of the converging-diverging section is defined where the converging-diverging section is narrowest.
Hamilton Sundstrand Space Systems International, Inc. (USA)
Inventor
Himmelmann Schuster, Ashley Rose
Mugurusa, Diego S.
Abstract
A vapor compression distillation urine processor assembly including a pump, a first phase separating apparatus, a compressor, and a second phase separating apparatus. Further detailed is a method of processing urine using a vapor compression distillation urine processor assembly.
Hamilton Sundstrand Space Systems International, Inc. (USA)
Inventor
Himmelmann Schuster, Ashley Rose
Mugurusa, Diego S.
Abstract
A distillation urine processor assembly includes a pump, a heat exchanger, a first phase separating apparatus, and a second separator. Further detailed is a method of processing urine using the distillation urine processor assembly.
A ducted smoke detector includes a housing defining an interior cavity, an air inlet in fluid communication with the interior cavity, an air outlet in fluid communication with the interior cavity, a smoke sensing chamber disposed in the interior cavity, and a particulate separator disposed between and in fluid communication with the air inlet and the smoke sensing chamber in the interior cavity. The particulate separator includes a shaft, a perforated wall disposed around the shaft, and a plurality of deflection vanes disposed on the shaft. The perforated wall extends from a first open end to a second open end, is connected to the shaft, and is configured to rotate with the shaft. The plurality of deflection vanes is disposed on the shaft and extend radially outward toward the perforated wall, the plurality of deflection vanes configured to rotate with the shaft and the perforated wall.
A solid-state circuit breaker (SSCB) is provided. The SSCB includes an electrical circuit. The electrical circuit includes inductor electrical connections, a diode rectifier bridge that drives current, which enters the electrical circuit in first or second directions, across the inductor electrical connections in only one of the first direction or the second direction and an inductor. The inductor is electrically interposed between the inductor electrical connections. The inductor includes a permanent magnet arrangement configured to introduce flux pre-bias for maintaining the inductor in an out-of-saturation condition during a peak fault event.
H03K 17/56 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices
A power supply system includes first and second generators that are measured by first and second current sensors. The system also includes a first generator controller configured to: receive a first current signal from the first current sensing device and a second current signal from the second current sensing device; analyze the first current signal and the second current signal to determine a first voltage foldback value based on a first common mode current calculated from the first current signal and the second current signal; and operate the first DC power supply to reduce a first voltage output of the first DC power supply by the first voltage foldback value.
G05F 1/573 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector
H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
A cooling structure for a rotary electric machine includes an annular radiator body defining an axis X between a first end and a second end. The annular radiator body has a radially inner wall and a radially outer wall and a plurality of channels defined between the radially inner wall and the radially outer wall, each extending from the first end to the second end. Each channel includes a divider wall extending along the axis between the first end and the second end, separating the respective channel into two sub-channels. The divider wall has a corrugated shape defining alternating peaks and valleys along the axial length of the divider wall.
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
A stator assembly for an electrical machine, including stator teeth which are individually formed and are spaced azimuthally from each other. Each stator tooth includes an azimuthally extending central flange arranged to engage with the central flange of an adjacent stator tooth. The stator assembly includes clamping elements which are arranged between the stator teeth and are arranged to exert a radially inward force on each stator tooth, to hold the stator assembly together.
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
53.
PERFORMANCE ENHANCED BRUSHLESS MOTOR WITH VIRTUAL WYE NEUTRAL POINT SWITCHING
A motor drive system includes a three-phase motor and a virtual neutral bridge inverter circuit. The three-phase motor includes a first phase lead, a second phase lead, and a third phase lead. Each of the first phase neutral end, the second phase neutral end, and the third phase neutral end of the phase leads are separated from one another. The virtual neutral bridge inverter circuit includes a first neutral switch pair connected at a first neutral connection node, a second neutral switch pair connected at a second neutral connection node, and a third neutral switch pair connected at a third neutral connection node. The first phase neutral end is connected to the first neutral connection node, the second phase neutral end is connected to the second neutral connection node, and the third phase neutral end is connected to the third neutral connection node.
H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H02P 21/22 - Current control, e.g. using a current control loop
H02P 25/03 - Synchronous motors with brushless excitation
H02P 25/16 - Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
Apparatus and associated methods relate to dividing single full-width card slot of an electronics enclosure into two reduced-width card slots. Such conversion is performed by interposing a card-slot dividing member between full-width slide members on opposite interior surfaces of a card cage of the electronics enclosure. The card-slot dividing member has first and second reduced-width slide members aligned directly opposite the full-width slide members on opposite interior surfaces of the card cage. Each of the first and second reduced-width slide members is configured to slidably guide a reduced-width Circuit Card Assembly (CCA) module into the reduced-width card slot cooperatively with a corresponding one of the full-width slide members. In some embodiments, the card-slot dividing member is further configured to operate as a heat exchanger, helping to cool any CCA modules within an interior cavity of the electronics enclosure.
A power supply circuit includes a series connection, the series connection being configured to transmit energy from a main energy source to an output and an energy storage device connected in parallel to the series connection, the energy storage device being chargeable via the main energy source during a charging mode. The energy storage device is configured to supply energy to the output during a failure of the main energy source; and a controller configured to monitor and/or test the energy storage device for degradation when the energy storage device is not supplying energy to the output and when the energy storage device is not being charged.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 31/389 - Measuring internal impedance, internal conductance or related variables
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
An environmental control system for conditioning a cabin of a vehicle positioned in an enclosed air-evacuated environment includes a first inlet for receiving a first medium and a second inlet for receiving a second medium. The first medium and the second medium are mixed at a mixing point located upstream from the cabin to form a mixed medium. The environmental control system additionally includes a coolant loop having a coolant circulating therein and at least one heat exchanger. The coolant loop includes a pump for circulating the coolant. The coolant is thermally coupled to the mixed medium at the at least one heat exchanger.
Disclosed is an electrochemical process to simultaneously produce a syngas suitable for the Fischer-Tropsch (F-T) process and oxygen. In an example embodiment, the process includes feeding steam and CO2 to an intermediate temperature (e.g., <700° C.) electrochemical reactor to produce separate CO-rich and O2-rich streams. An additional electrochemical reactor can be used to produce H2. The H2 is combined with CO from the first reactor to produce a syngas mixture ideal for a downstream F-T process. Alternatively, the electrochemical reactor can produce methane directly or a methanol stream for conversion to a hydrocarbon fuel.
An electric machine control system includes a control unit, wherein the control unit includes inputs for a POR voltage feedback, an electric machine current feedback, a PMG feedback, and an input speed feedback. A protection unit includes inputs for: the POR voltage feedback, the electric machine current feedback, the PMG feedback, and the input speed feedback. At least one trip connection connects between the control unit and the protection unit. A method of generator control includes receiving an input speed feedback, a generator line contactor (GLC) auxiliary feedback, a generator control switch (GCS) feedback, and the weight on wheels feedback in a control unit. The method includes determining within the control unit if voltage regulation and/or frequency regulation should be enabled independent from a protection unit operatively connected to the control unit.
H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
A method of operating an aircraft air conditioning system is includes delivering cabin air to a lower recirculation heat exchanger included in a lower cooling zone to generate lower cooled recirculated cabin air and delivering the cabin air to an upper recirculation heat exchanger included in an upper cooling zone to generate upper cooled recirculation air. The method further comprising generating power via a power system, and invoking, via the controller, a recirculation ground maintenance mode to command the power system to deliver power to one or both of the lower cooling zone and the upper cooling zone so as to output one or both of the lower cooled recirculated cabin air and the upper cooled recirculated cabin to an aircraft cabin.
B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned
B64D 13/02 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being pressurised
B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
B64D 41/00 - Power installations for auxiliary purposes
A water collector includes a metallic center body, an outer guide disposed concentrically within the metallic center body, a mid guide disposed concentrically within the outer guide, and an inner guide disposed concentrically within the mid guide. The outer guide, the mid guide, and the inner guide are formed from a non-metallic material.
An electric engine start architecture is provided and includes a motor controller including an exciter inverter and a controller, which outputs a control signal to the exciter inverter, and a generator. The generator includes an exciter receptive of alternating current (AC) from the exciter inverter with the exciter inverter responsive to the control signal, a rotating rectifier receptive of AC from the exciter and configured to convert the AC from the exciter into direct current (DC) and a main machine exclusively drivable by AC fields in the exciter to execute an engine start operation.
H02P 1/18 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
B64D 27/24 - Aircraft characterised by the type or position of power plant using steam, electricity, or spring force
62.
HYBRID MICROPROCESSOR AND PROGRAMMABLE LOGIC DEVICE (PLD)-BASED ARCHITECTURE INCLUDING INTER PROCESSOR COMMUNICATION
A microprocessor-PLD hybrid architecture includes an IPC microprocessor and a PLD in signal communication with the IPC microprocessor via an IPC interface. The IPC microprocessor outputs a data read command to initiate a data read operation or a data write command. The PLD includes a plurality of PLD modules that store data and a bus controller. The bus controller communicates with the plurality of PLD modules via a plurality of PLD interfaces and is configured to sequentially execute a set of bus controller instructions. The bus controller reads data from a target PLD module from among the plurality of PLD modules in response to receiving the data read command, and transfers the data to the IPC microprocessor. The bus controller receives data from the IPC microprocessor and stores the data in a target PLD module from among the plurality of PLD modules in response to receiving the data write command.
A system includes first precision rectifier operatively connected to receive high and low signals of a sine coil of a resolver and to output a first signaled condition and an exciter coil of the resolver. A second precision rectifier is operatively connected to receive high and low signals of a cosine coil of the resolver and to output a second signaled condition. A quadrant detection circuit operatively connected to receive high and low signals of the exciter coil of the resolver, wherein the quadrant detection circuit is operatively connected to receive high and low signals from the sine coil and from the cosine coil, and to output a signal indicative of quadrant position of the resolver.
G01D 5/20 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
64.
DATA REFRESH CYCLE FOR ASYNCHRONOUS DEVICE COMMUNICATION
An asynchronous communication system configured to operate a MIL-1553 protocol. The system includes: a bus; a bus controller coupled to the bus that is configured to control access to the bus; a remote terminal connected to the bus; a device controller connected to the remote terminal; and a read/write overlap avoidance latch connected to the remote terminal. The read/write overlap avoidance latch provides an active signal to the device controller that prevents the device controller from writing data to the remote terminal while the bus controller is reading data from the device controller during a read cycle.
A water extractor for an environmental control system of an aircraft includes a separation mechanism configured to divide an airflow into a first airflow and a second airflow. The separation mechanism includes an inlet conduit, a body in fluid communication with the inlet conduit, and at least one coalescing feature arranged within an interior of the body. A water extraction vessel is arranged in fluid communication with the separation mechanism. The water extraction vessel includes a first portion for receiving the first airflow and a second portion for receiving the second airflow. The first portion is configured to collect and remove water from the first airflow.
A water extractor is provided and includes a helical channel, a toroidal body encompassing the helical channel and defining an exhaust plenum beyond the helical channel and comprising a first outlet, an outer body defining a settling chamber about the toroidal body and including a second outlet and a drain and a scupper disposed to direct moisture, which is separated from a medium flowing through the helical channel, from the helical channel and into the settling chamber. The medium is flowable from the helical channel into the exhaust plenum and then sequentially through the first and second outlets to pressurize collected moisture flow from the settling chamber and through the drain.
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
A valve includes a housing. A stroking valve is operatively connected to the housing for valve stroking movement relative to the housing in a direction of a longitudinal axis of the housing. The stroking valve has an open position for flow through the housing and a closed position for blocking flow through the housing. The stroking valve is configured to make sealing contact with a second face seal between the seal block and the stroking valve after a first portion of a stroke from the open position to the closed position prior to making sealing contact with a first face seal between the stroking valve and the housing.
A power generation system for an includes: a hydrogen fuel cell; an air supply system configured to supply air to the aircraft, the air supply system comprising an ORC-air heat exchanger; and an organic Rankine cycle (ORC) system comprising an organic fluid circuit. The organic fluid circuit is configured to receive excess fuel cell heat from the hydrogen fuel cell to heat organic fluid in the organic fluid circuit. The organic fluid circuit passes through the ORC-air heat exchanger such that the supply air heats the organic fluid in the organic fluid circuit. The ORC system is configured to extract power from the organic fluid.
B64D 41/00 - Power installations for auxiliary purposes
F02C 6/20 - Adaptations of gas-turbine plants for driving vehicles
H01M 8/04014 - Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
A power generation system for an aircraft includes a hydrogen fuel cell comprising a fuel cell hydrogen inlet and a fuel cell hydrogen outlet and a hydrogen recirculation system configured to recirculate recirculation hydrogen from the fuel cell hydrogen outlet to the fuel cell hydrogen inlet.
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04014 - Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/22 - Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
An impeller includes a hub. The hub has a first end and a second end and includes an impeller disk at the second end of the hub. The impeller disk includes a first annular protrusion extending from the impeller disk. A first pocket is in a radially outer side of the first annular protrusion. The impeller also includes a first preloading band positioned in the first pocket. The first preloading band encircles the radially outer side of the first annular protrusion. The impeller also includes blades connecting to a radially outer surface of the hub.
An environmental control system for a vehicle includes a source of a first medium, a cabin air compressing device including a compressor having a compressor inlet and a compressor outlet, and a conduit fluidly coupling the source of the first medium to the compressor inlet. The first medium provided to the compressor inlet is output at the compressor outlet as a compressed first medium. An environmental control system pack is located downstream from and is fluidly coupled to the compressor outlet. The environmental control system pack includes a ram air circuit having at least one ram air heat exchanger. Another conduit for providing a second medium to the compressor fluidly couples an outlet of the at least one ram air heat exchanger and the compressor inlet.
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
F25B 9/06 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
An environmental control system for a vehicle includes at least one cabin air compressing device including a compressor having a compressor inlet and a compressor outlet. The environmental control system additionally includes an environmental control system pack located downstream from and fluidly coupled to the compressor outlet via at least one conduit. The environmental control system pack includes a ram air circuit. A bypass conduit fluidly couples the compressor outlet to the ram air circuit.
An environmental control system for a vehicle includes an environmental control system pack including a ram air circuit and a thermodynamic device. The ram air circuit includes a ram air shell having a ram inlet and a ram outlet and at least one ram air heat exchanger arranged within the ram air shell. A ram air fan is fluidly coupled to the ram air shell. A bypass conduit is fluidly connected to a source of compressed medium. The bypass conduit has an outlet end positioned adjacent to a surface of the ram air fan for delivering a compressed medium to the surface.
A motor drive system includes an inverter comprising a plurality of switching elements on a first arm. A first switching element and a first resistor are connected in series between a DC input and an arm midpoint, and a second switching element and a second resistor are connected in series between the midpoint and ground. A signal conditioning circuit acts a sensor for the system and has first and second inputs. The first input is connected to the first leg between the first switching element and the first resistor, and the second input is connected to the first leg between the second resistor and the second switching element. The signal conditioning circuit can be the only current sensor connected to the arm and can be driven by the same power supply used to control the switching elements.
H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
H02M 7/539 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
A single stage servo valve assembly includes a drive assembly and a valve body assembly. The valve body assembly defines: a valve body extending along a valve body axis between a first valve body end and a second valve body axis: a supply port; a control port; and a return port formed through the valve body each defining a respective fluid flow channel, having a fluid flow axis, providing fluid communication between an interior of the valve body and an exterior of the valve body. The drive assembly operates to control the flow of fluid between the supply port, the control port and the return port, via the interior of the valve body, in response to an electric command signal. Each of the supply port, and the return port includes a tapered nozzle at an interface between the interior of the valve body and the respective port fluid flow channel.
A method is disclosed for evaluating inerting concentration of a fire suppression agent. The method includes flowing air upward into a chimney tube and flowing fuel into the flowing air in the chimney tube. A targeted concentration of the fire suppression agent is introduced into the flowing air and into the flowing fuel in the chimney tube. An ignitor is ignited to provide ignition energy to the flowing air and the flowing fuel, and the ignitor is deactivated. The targeted concentration of the fire suppression agent is at or above the inerting concentration of the fire suppression agent if combustion of the flowing fuel does not persist beyond three seconds after the ignitor is deactivated.
A vehicle includes a first area conditioned by a first medium, a second area conditioned by a second medium, and an air management system. The air management system includes a source of third medium, an environmental control system fluidly coupled to the source of third medium and to the second area, and a closed loop vapor compression system having a refrigeration medium circulating therein. The vapor compression system is fluidly coupled to the first area, the second area, and the source of third medium. During normal operation, both a first flow of the third medium conditioned within the environmental control system and a second flow of the third medium are provided to the second area.
A coated component includes a metallic body defining an inner volume configured to retain a fluid therein. The metallic body includes a plurality of segments, at least one weld joint attaching the plurality of segments, an outer surface, and an inner surface facing and defining the inner volume. The component further includes a chrome-free protective coating disposed on each of the outer surface and the inner surface. The coating includes an epoxy layer, and an oxide layer disposed between the epoxy layer and the respective outer surface and inner surface.
An exhaust moisture removal system for an electric generation system including: a sorbent wheel; an interchanger; a hydrogen evaporator including an exhaust portion; and an exhaust outflow stream passageway configured to convey an exhaust from a hydrogen fuel cell of the electric generation system through a first pass and then through a second pass, the second pass being located downstream of the first pass, wherein the first pass of the exhaust outflow stream passageway passes through the sorbent wheel, then through the interchanger, and then through the hydrogen evaporator, and wherein the second pass of the exhaust outflow stream passageway passes through the hydrogen evaporator, then through the interchanger, and then through the sorbent wheel.
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
80.
ELECTRICALLY DIRECT CONTROLLED VARIABLE DISPLACEMENT PUMPS
A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. An electromechanical actuator (EMA) is operatively connected to actuate the variable displacement mechanism for direct electromechanical control of the VDP.
A vibration damping component for a vehicle includes a housing, and a mounting lug attached to the housing. The mounting lug includes an outer shell with a top, a bottom, and sides. The mounting lug also includes a bore through the outer shell from the top to the bottom. The mounting lug also includes a cavity, an interior lattice, and a damping media. The outer shell and the bore enclose the cavity. The interior lattice is within the cavity and stiffens the mounting lug. The damping media is enclosed in the cavity and between solid portions of the interior lattice.
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
A method for monitoring degradation of at least one component in a power system comprising a motor drive circuit configured to provide AC power from a power source to power a motor. The method includes isolating the motor drive circuit from the power source; injecting a test signal to at least one component of the isolated motor drive circuit; and measuring a propagated signal resulting from the injected test signal propagating through the at least one component. The propagated signal may be compared to a test signal and, if the propagated signal differs from the test signal by a threshold, then degradation of the at least one component may be identified.
G01R 31/01 - Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
A nozzle of a fire suppression system includes a housing. Two or more orifices in the housing emit a fire suppression agent. Each of the two or more orifices emits the fire suppression agent in a rotational vortex.
B05B 1/34 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
A62C 35/68 - Pipe-line systems - Details, e.g. of pipes or valve systems
A stator coil includes a conductor wound into a plurality of turns having substantially straight sides and opposing curved ends. The stator coil also includes insulating material provided between the conductor turns and wound into the turns with the conductor. The coil can be formed by winding a conductor in a plurality of turns defined by opposing substantially straight sides an opposing curved ends, and winding an insulating material located below or above the conductor together with the conductor.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
H02K 15/10 - Applying solid insulation to windings, stators or rotors
A stator for an electrical machine can include a plurality of windings, each forming a coil and end connections. The stator can include a first potting material having a first viscosity and a first thermal conductivity. The first potting material can be disposed on each coil and fills gaps between each coil. The stator can include a second potting material different from the first potting material and having a second viscosity and a second thermal conductivity. The second viscosity can be higher than the first viscosity and the second thermal conductivity is higher than the first thermal conductivity. The second potting material can be disposed on each of the end connections to provide increased thermal conductivity from the end connections.
A bus controller-based page memory programmable logic device (PLD) architecture includes a plurality of PLD modules and a bus controller in signal communication with the plurality of PLD modules via a universal bus interface. Each PLD module include a PLD memory unit configured to store first data. The bus controller includes bus memory unit configured to store second data and includes a bus controller engine configured to sequentially execute a set of bus controller instructions. One or both of the first data and the second data is transferred between the bus controller and a target PLD module among the plurality of PLD modules in response to sequentially executing the set of bus controller instructions.
A power generation system for an aircraft includes: a storage tank for storing hydrogen; a fuel cell configured to generate power from the hydrogen; a fuel supply line configured to supply the hydrogen from storage tank to the fuel cell; a fresh air supply line configured to supply air to a cabin air supply system; and a fuel-air heat exchange system, wherein the fuel supply line and the air supply line pass through the fuel-air heat exchange system such that the hydrogen cools the air in use.
B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
An air processing system for an aircraft comprising a hydrogen fuel cell. The air processing system includes an input airflow; a first and a second compressor, wherein each compressor is configured to compress the airflow in a compression stage; a first and a second turbine, wherein each turbine is configured to decompress the airflow in a decompression stage; and a first and a second shaft each configured to independently rotate. Each shaft mechanically couples one of the compressors and one of the turbines, such that torque can be transferred between the compressor-turbine pair.
A face seal assembly includes a rotationally fixed first component at least partially defining an interior chamber containing a volume of lubricant. The first component includes a rotationally fixed seal element. A rotatable second component is rotatable about an axis of rotation relative to the first component. The second component includes a second component body extending along the axis of rotation from the interior chamber to outside of the interior chamber. An axially facing component surface is located in the interior chamber and is configured to engage with an axially-facing element surface of the seal element to define a seal interface of the face seal. A plurality of fins extend radially outwardly from the second component body in the chamber interior, such that the plurality of fins create a centrifugal force on the volume of lubricant to urge the volume of lubricant away from the seal interface.
A rectifier diode assembly is provided and includes first and second bus bars, a diode interposed between the first and second bus bars to define first and second spaces for fluid flow between the diode and the first and second bus bars, respectively, and first and second louvers. The first louvers are compressively interposed between the first bus bar and the diode to extend across the first space for thermally and electrically connecting the first bus bar and the diode. The second louvers are compressively interposed between the second bus bar and the diode to extend across the second space for thermally and electrically connecting the second bus bar and the diode.
A multilevel power converter comprising: a DC bus having a positive terminal and a negative terminal; a plurality of switches for each of a plurality of phase legs of the power converter connected between the positive terminal and the negative terminal, each power leg having an output for provided a converted voltage output according to the switching control of the plurality of switches; and one or more current sensors, wherein at least two of the switches, or at least one of the switches and a current sensor, and/or at least two current sensors are connected as a cluster to share a common power supply.
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
H02M 7/5395 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
92.
SHOOT-THROUGH PROTECTION AND CURRENT MONITORING SCHEME FOR MULTILEVEL POWER CONVERTERS
A multilevel power converter comprising: a DC bus having a positive terminal and a negative terminal; a plurality of switches for each of a plurality of phase legs of the power converter connected between the positive terminal and the negative terminal, each power leg having an output for provided a converted voltage output according to the switching control of the plurality of switches; and wherein a current sensor provided in each phase leg connected in series between an adjacent pair of the plurality of switches.
H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
93.
HEAT EXCHANGER COOLING SYSTEMS AND AUXILIARY POWER GENERATION ON LIQUID HYDROGEN-FUELED AIRCRAFTS
A system includes a fuel cell stack. A heat exchanger has an air passage in thermal communication with an H2O passage for heat exchange between air and H2O. An exhaust outlet of the fuel cell stack is connected in fluid communication with an H2O inlet of the heat exchanger for supplying H2O to the heat exchanger.
An electric machine assembly includes a stator. The stator includes a core defining a rotational axis, windings assembled into the core, and a back iron heat exchanger mounted to the core, extending around the rotational axis. A plurality of coolant circuits pass from one or more coolant inlets in the back iron heat exchanger through the back iron heat exchanger, to one or more coolant outlets in the back iron heat exchanger. Between the one or more coolant inlets and the one or more coolant outlets, the plurality of cooling circuits are in fluid isolation from one another and from radially inner and outer surfaces of the back iron heat exchanger.
Hamilton Sundstrand Space Systems International, Inc. (USA)
Inventor
Myers, Casey
Kaufman, Cory
Abstract
A waste processing system includes a storage tank to collect urine, a dose pump to mix a volume of urine pretreat with a volume of water and dispense the resultant pretreat mixture into the storage tank, and a sensor configured to monitor one or more properties of the pretreat mixture. The sensor is an optical sensor transmitting a light signal through the pretreat mixture. A method of monitoring a flow of a pretreat mixture of a waste processing system includes mixing a volume of urine pretreat with a volume of water at a dose pump defining a pretreat mixture, directing the pretreat mixture along a fluid pathway toward a storage tank, and measuring one or more properties of the pretreat mixture via an optical sensor disposed along the fluid pathway.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/25 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 33/493 - Physical analysis of biological material of liquid biological material urine
An electromagnetic machine including a stator and a heat transfer component thermally coupled to the stator. The heat transfer component has at least one inlet, at least one outlet, and one or more channels fluidly connecting the at least one inlet to the at least one outlet. The one or more channels have a helical configuration.
An assembly includes a rotor shaft extending in an axial direction along a center axis of the assembly and a flange extending radially outward from the rotor shaft and circumferentially around the rotor shaft. An axial flux motor extends circumferentially around the rotor shaft. The axial flux motor includes an array of magnets, a stator support structure, and a plurality of coils. The array of magnets extending circumferentially around the rotor shaft. The stator support structure extends circumferentially around the rotor shaft and faces the flange. The plurality of coils extends circumferentially around the rotor shaft and faces the array of magnets in the axial direction. Each coil of the plurality of coils includes bearing windings and torque generating windings on the stator support structure. Both the bearing windings and the torque generating windings face the array of magnets in the axial direction.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
A pressure vessel includes a first component, a second component, and a bonded lap joint between the first and second components. The bonded lap joint includes a portion of the first component which extends about a circumference of the pressure vessel, a portion of the second component which extends about the circumference of the pressure vessel and partially overlaps the portion of the first component, an adhesive bond connecting the portion of the first component to the portion of the second component and thereby joining the first and second components, and mechanically interlocking structures connecting the portion of the first component to the portion of the second component. The adhesive bond forms a primary retention mechanism. The mechanically interlocking structures are situated at least partially within each of the portion of the first component and the portion of the second component, and form a secondary retention mechanism.
Hamilton Sundstrand Space Systems International, Inc. (USA)
Inventor
Todd, Joshua
Fletcher, Gabriel
Abstract
A system for detecting radiation events, having: a test memory with memory blocks; a controller having controller memory; an integrated circuit (IC) array having IC chains, wherein each of the IC chains has a plurality of IC elements that is response to and generates a voltage when exposed to a radiation event; a dosimeter configured to record an accumulated amount of radiation exposure to the system, wherein the controller is configured to perform steps of: initializing the test memory, the IC array and the dosimeter; monitoring for an unexpected signal from an IC chain and for unexpected data in a memory block of the test memory; and identifying the radiation event upon one or more of receiving the unexpected signal and identifying unexpected data in a memory block of the test memory.
A variable gear ratio gear set system includes a planetary gear set including a sun gear locate at a central axis of rotation, a plurality of planet gears meshed with the sun gear and retained at a carrier, and a ring gear surrounding the plurality of planet gears and meshed therewith. An input shaft inputs rotational energy to the planetary gear set at a first rotational speed, and an output shaft outputs rotational energy from the planetary gear set at a second rotational speed. A plurality of one-way clutches are positioned in the gear set and are engageable such that the system has a first gear ratio when the input shaft is rotated in a first direction, and a second gear ratio when the input shaft is rotated in a second direction.
F16H 3/00 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
F16D 41/066 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
