Abstract: An example space-based power generation panel arrangement includes a first reflective panel and at least one heat pipe configured to communicate thermal energy to the first reflective panel and a second reflective panel. The heat pipe is configured to hinge the first reflective panel to the second reflective panel.

Abstract: A method for gasifying a carbonaceous material includes supplying a main slurry flow to a main cavity of a two-stage slurry splitter, dividing the main slurry flow into secondary slurry flows that flow into secondary cavities extending from the main cavity at distal ends of first stage flow dividers, dividing each secondary slurry flow into tertiary slurry flows that flow into slurry injection tubes extending from each secondary cavity at distal ends or second stage flow dividers, injecting the tertiary slurry flows into a gasification chamber coupled to the injector module, impinging annular shaped sprays of a reactant onto corresponding ones of the tertiary slurry flows within the gasification chamber using annular impinging orifices in a face plate of the injector module, and cooling the face plate to withstand high temperatures and abrasion.

Abstract: A transverse flux machine has at least three phases, each provided by a stator core and phase windings. Each of the at least three phases is captured within a common housing. Parallel lines extend from the at least three phases, and a current source converter is created on each of the parallel lines by inductors, a switching network, and communicating capacitors, which are received within the common housing.

Abstract: A scroll compressor includes a compressor shell having first and second scroll members. The scroll members each have a base and a generally spiral wrap extending from its base. The generally spiral wraps of the first and second scroll members interfit to define compression chambers. A shaft causes the second scroll member to orbit relative to the first scroll member. At least one bypass port is formed in a base of one scroll member, and communicates with at least one of the compression chambers. The bypass port communicates with a passage leading to a suction pressure chamber within the compressor shell. A solenoid valve is movable between a reduced capacity position and a full capacity position, and selectively supplies a pressurized fluid to a fluid valve associated with the bypass port, such that movement of the solenoid can control whether the bypass port is open or closed.

Abstract: A gas turbine engine system includes a fan and a fan bypass passage downstream of the fan for conveying a bypass airflow from the fan. A nozzle associated with the fan bypass passage includes a plurality of different positions that influence the bypass air flow. One or more sensors near the fan produce a signal representative of a foreign object near the fan. A controller commands the nozzle to move to a desired one of the plurality of different positions in response to the signal from the sensor to change a pressure ratio across the fan to thereby reduce a mechanical stress on the fan.

Abstract: A component intended for use in very low temperature situations has an electromechanical actuator with a control for an electric motor. The control receives a temperature signal indicative of a temperature being experienced by the electromechanical actuator. The control is operable to produce a current signal sent to the electric motor which will generate heat without significant torque. A method of operating the electromechanical actuator is also disclosed.

Abstract: A bipolar plate (30) for use in a fuel cell stack (10) includes one or more first metal layers (40a) having a tendency to grow an electrically passive layer in the presence of a fuel cell reactant gas and one or more second metal layers (40b) directly adjacent the one or more first metal layers (40a). The second metal layer has a tendency to resist growing any oxide layer in the presence of the fuel cell reactant gas to maintain a threshold electrical conductivity. The second metal layer also has a section for contacting an electrode (12, 14) and providing an electrically conductive path between the electrode (12, 14) and the first metal layer.

Abstract: A seal assembly includes a body having two circumferential sides, a leading end, and a trailing end. At least one of the circumferential sides includes a first channel sidewall, a second channel sidewall, and a channel bottom wall that together define a seal channel for receiving a seal. The seal channel includes a slot that cooperates with a tab on the seal to facilitate securing the seal within the seal channel.

Abstract: A track assembly for a particulate material extrusion pump according to an exemplary aspect of the present disclosure includes a link assembly with a roller bearing. An insert mounted to a load beam located such that the roller bearing contacts the insert.

Abstract: A method of processing steel includes carburizing a martensitic stainless steel work piece to produce a carburized case by utilizing in combination, (i) a composition of the martensitic stainless steel work piece, (ii) a preselected carbon concentration in the carburized case, and (iii) a preselected grain size of the martensitic stainless steel work piece such that the carburized case predominately forms carbides of composition M6C, M2C, M23C6 or combinations thereof. The martensitic stainless steel work piece is then heated to substantially solution the metal carbides. The work piece is then quenched at a cooling rate that is sufficient to avoid substantial precipitation of any carbides during cool down to the martensite start temperature, then given a low temperature temper. In so doing, the carburized case hardened martensitic stainless steel will have balanced mechanical, tribological and corrosion resistance properties for high performance bearing and gear components.

Abstract: An electric power generation system has a synchronous machine, a starter excitation source and an exciter field driver. The starter excitation source is connected to the synchronous machine via multiple phase connections, and the exciter field driver is connected to the synchronous machine via a portion of the same phase connections. At least one of the phase connections is connected to each other phase connection via a transient voltage suppressor.

Abstract: A mobile boarding bridge (101) is equipped with climate control facilities. The mobile boarding bridge is furnished with multiple collapsible tunnels (110, 120). A heating/cooling device (160) comprising a climate controller (161) generates hot or cold air and is furnished on the outside of the first tunnel (110) of said tunnels. A connection pipe (163) that connects to ducts (164) within the tunnel is attached to said climate controller (161). A duct (164) connected to said connection pipe (163) directs air that has been heated/cooled by the heating-cooling device (160) to the interior of the first tunnel (110). An aspirator comprises an air intake (171) which intakes air from the interior of the tunnel and an intake pipe (172) which leads air taken in at said air intake (171) to the interior of the climate controller (161).

Abstract: A motor drive ground fault detection device operates by computing the total RMS voltage of all the phases, and comparing the total RMS voltage to a threshold to determine if a ground fault has occurred.

Abstract: A single support device (30) is adapted to support and secure a machine (34) at least one sheave (38) and a plurality of termination members (44, 46). The single support device (30) is conveniently installed within a hoistway (26) or within a machine room (90). The machine (34) and sheave (38) may be premounted to the support device (30) and the entire assembly can be lowered into position by crane (300).

Abstract: An anti-torque mechanism which permits a full range of swashplate assembly motion. The anti-torque mechanism generally includes an anti-torque shaft and a compound bearing mounted thereto to provide five-degrees-of-freedom (spherical-linear-elastomeric) so as to permit a swashplate attachment point to move axially in response to pitch input; pivot in response to swashplate tilt; and move in/out in the radial direction.

Abstract: A hybrid core assembly for a casting process includes a ceramic core portion, a first refractory metal core portion and a first plate positioned between the ceramic core portion and the first refractory metal core portion. The ceramic core portion includes a first trough. A portion of the refractory metal core portion is received in the first trough.

Abstract: Shaft trim balancing devices, related systems and methods are provided. In this regard, an representative device for trim balancing a rotatable shaft includes: an intermediate section being annularly shaped and having terminating ends spaced from each other in an uncompressed state of the device; and first and second sets of counterweights extending longitudinally from opposing sides of the intermediate section.

Abstract: A scroll compressor is provided with injection tubes which extend through an upper shell and into a fixed scroll member. The injection tubes are fixed relative to the fixed scroll member, and may be press-fit or otherwise secured. This arrangement simplifies the provision of injection ports into a scroll compressor.

Abstract: A turbine engine airfoil includes an airfoil structure having a side with an exterior surface. The structure includes a cooling passage extending a length within the structure and providing a convection surface facing the side. The convection surface is twisted along the length, which varies a heat transfer rate between the exterior surface and the convection surface along the length. In one example, the cooling passage is provided by a refractory metal core that is used during the airfoil casting process. The core includes multiple legs joined by a connecting portion. At least one of the legs is twisted along its length. The legs are deformed toward one another opposite the connecting portion to provide a desired core shape that corresponds to the shape of the cooling passage. Accordingly, the cooling passage provides desired cooling of the airfoil.

Abstract: An exemplary lock out assembly includes a lock nut defined about an axis. The lock nut defines inner apertures along an inner diameter and outer apertures along an outer diameter. The inner apertures are at least partially threaded. The outer apertures are at least partially threaded. The inner apertures are radially spaced from the outer apertures.