Abstract: A motor for use in a volatile environment includes a rotor exposed to the volatile environment, electronics for rotating the rotor, an impervious ceramic barrier separating the electronics and the rotor, and a flexible seal for preventing the volatile environment from contacting the electronics and for minimizing vibratory and twisting loads upon the barrier to minimize damage to the barrier.

Abstract: The sublimation capability of a porous metal plate used in a sublimator is maintained by heating the porous metal plate at an elevated temperature in a flowing stream of oxygen for an extended period of time to form an oxidized surface. A short chain molecule, such as citric acid, is attached to the oxidized surface having multiple functional carboxylate groups and no hydrophobic tail.

Abstract: A thermal management system for use in a vacuum is provided including a heat generation device and a heat dissipation device. A laser sintered first heat transfer panel is mounted to a surface of the heat generation device and a laser sintered second heat transfer panel is mounted to a surface of the heat dissipation device. The first and second heat transfer panels are positioned between the heat generation device and the heat dissipation device. A portion of the first heat transfer panel and a portion of the second heat transfer panel are interposed.

Abstract: A thermal management system for use in a vacuum is provided including a heat generation device and a heat dissipation device. An extruded first heat transfer panel is mounted to a surface of the heat generation device and an extruded second heat transfer panel is mounted to a surface of the heat dissipation device. The first and second heat transfer panels are positioned between the heat generation device and the heat dissipation device. A portion of the first heat transfer panel and a portion of the second heat transfer panel are interposed.

Abstract: A solar power source is a multi-layer structure consisting of photovoltaic and quantum well thermoelectric modules in electrical contact with, but thermally insulating from, each other. The structure generates power when focused solar energy is directed at the photovoltaic module which generates power, heats up, and subsequently generates a thermal gradient in the thermoelectric module which generates additional power. The thermoelectric module may generate additional electrical energy using the Seebeck effect, or may cool the photovoltaic module using the Peltier effect.

Abstract: A device including a structural member having a heat spreader and an electronic device mounted directly to a first surface of the heat spreader of the structural member. The device also includes a cold plate mounted directly to the first surface of the heat spreader of the structural member.

Abstract: A demisable fuel supply system for a satellite includes a pressurized aluminum alloy tank with an aluminum alloy propellant management device therein. The propellant management device (PMD) can have any capillary action surface tension fluid transport features known in the art. Selected inner surfaces of the tank and the PMD are covered with a plasma powder sprayed titanium based coating to guarantee propellant wettability and corrosion resistance of the fuel supply system.

Abstract: A heat exchanger is provided and includes a frame defining a volumetric body with substantially flat upper and lower sides that each has inwardly extending ribs defining airflow pathways, heat exchange elements disposed within an interior of the body and partition walls disposed to run perpendicularly with respect to the ribs and to transmit loading between the upper and the lower sides from the ribs and through the interior of the body.

Abstract: A heat exchanger is provided and includes a frame defining a volumetric body with substantially flat upper and lower sides, heat exchange elements disposed within an interior of the body, sorbent material disposed among the heat exchange elements within the interior of the body, retainer screens disposed at upper and lower sides of the heat exchange elements and sorbent material and structural foam layers supportively disposed between the retainer screens and the substantially flat upper and lower sides to absorb loading applied to the retainer screens.

Abstract: A cold plate assembly is provided having a cold plate with a generally planar member that provides a support surface. The support surface is configured to support a heat generating device. A structural member provides attaching features that are configured to secure the cold plate assembly to a support. The cold plate is secured to the structural member by a braze material. In one example, the cold plate assembly is manufactured by arranging multiple sheets with a first braze material provided between the sheets. The multiple sheets comprise a cold plate. The braze material is heated to mechanically join the multiple sheets to one another and the cold plate to the structural member.

Abstract: A water recovery system includes a sorbing bed, a desorbing bed, a heat pump and a controller. The sorbing bed receives a first fluid stream and absorbs and/or adsorbs water from the first fluid stream. The desorbing bed is aligned with and thermally connected to the sorbing bed, and receives a second fluid stream and desorbs water to the second fluid stream. The heat pump is positioned between the sorbing bed and the desorbing bed and transfers heat from the sorbing bed to the desorbing bed. The controller distributes power to the heat pump to maintain an area near the outlet of the desorbing bed at a temperature greater than an area of the sorbing bed aligned with the area near the outlet of the desorbing bed. A method for recovering water from a fluid stream includes directing fluid streams through the described water recovery system.

Abstract: An electrical power cell system including first and second electrical power cells having first and second terminals, one or more transient voltage suppressors connected in parallel with a relay, the relay having two states, the first state of the relay connects the first and second electrical power cells in series, and the second state of the relay bypasses the first electrical power cell so that the first electrical power cell is not connected in series with the second electrical power cell.

Abstract: A speed sensor target includes a target body, the target body defining a central cavity disposed to receive a shaft of a motor, the target body includes a cylindrical outer surface having a plurality of asymmetrically spaced grooves arranged thereon, and the target body is formed of a magnetic material.

Abstract: A diagnostic device identifies failed sub-modules within a larger system based on error codes received from the system. The device stores a likelihood matrix that correlates each sub-module with each possible error code and maintains a likelihood value corresponding to the probability of a failed sub-module generating a corresponding error code and stores a prior probability of failure associated with each sub-module based on prior observational data. In response to received error codes, the device calculates a posterior probability of failure for each of the plurality of sub-modules based on a product of the likelihood values corresponding to the received error codes and the prior probability of failure associated with each sub-module. Based on the calculated posterior probability, the device identifies the sub-module with the highest posterior probability of failure as the failed sub-module.

Abstract: A rotor for an induction motor includes a rotor body, the rotor body defining a central cavity configured to receive a motor shaft and having a plurality of radial slots formed therethrough, each radial slot of the plurality of radial slots extends outward radially from the central cavity to an outer surface of the rotor body, a plurality of conductive bars arranged within the plurality of radial slots of the rotor body, wherein each conductive bar of the plurality of conductive bars extend outward radially within each radial slot from the central cavity to the outer surface of the rotor body, a first end ring arranged on the rotor body in electrical communication with each conductive bar of the plurality of conductive bars, and a second end ring arranged on the rotor body in electrical communication with each conductive bar of the plurality of conductive bars.

Abstract: A turbine outlet frozen gas capture apparatus is provided and includes an enclosure divided into first and second chambers, the first chamber being receptive of turbine outlet exhaust including frozen gas, a wheel disposed and configured to be rotatable such that frozen gas received in the first chamber is captured and transported into the second chamber and a heater disposed within the second chamber and configured to vaporize the frozen gas transported therein to thereby produce vaporized gas.

Abstract: A panel for forming a heat exchanger structure includes a first end; a second end; a first side to connect to another adjacent panel; a second side to connect to an adjacent panel; a first surface between the first and second ends and the first and second sides; a second surface between the first and second ends and the first and second sides; and a circular flow passage extending from the first end to the second end, wherein the panel is an extruded monolithic structure.

Abstract: A sampling device for a substance detection instrument includes a membrane comprising a porous support having a coating thereon, the coating comprising a carborane polysiloxane or an arylene polysiloxane, the membrane having a front side configured to be placed in contact with a test sample and a back side; a sample line having an inlet proximate to the back side of the membrane and an outlet in fluid communication with a substance detector; and a source of carrier gas in fluid communication with the back side of the membrane and the sample line inlet.

Abstract: A rotary valve includes a housing including an inlet and an outlet. A drum is rotatably located in the housing and includes one or more fluid pathways to convey fluid flow between the inlet and the outlet. The rotary valve further includes a single-piece unitary drum seal having a portion located around a perimeter of a port of the one or more fluid pathways to seal between the drum and the housing. A drum seal assembly for a rotary valve includes a single piece, unitary drum seal disposed at a drum of the rotary valve. The drum seal has a portion extending around a perimeter of a port of one or more fluid pathways of the drum to seal between the drum and an inner wall of a housing. The drum seal assembly further includes an energizer to urge the drum seal into contact with the housing.

Abstract: An aqueous-based coolant for cooling and reducing corrosion potential in applications having high aluminum or nickel surface area to coolant volume ratios has a pH between 8 and 9 and includes about 35 weight % to about 65 weight % propylene glycol, about 1.0 weight % to about 4.0 weight % 2-ethylhexanoic acid, about 0.25 weight % to about 1.0 weight % sebacic acid, about 0.25 weight % to about 1.0 weight % benzoic acid and about 0.03 weight % to about 0.1 weight % molybdate oxyanion. A cooling system includes an aluminum or nickel surface and the aqueous-based coolant. A method of cooling a component surface containing aluminum or nickel includes delivering the aqueous-based coolant to the component surface and cooling the component surface with the aqueous-based coolant.