Abstract: A method and composition for fusing toner to paper using hydrofluorocarbons or perfluorinated C1-C4 alkyl alkyl ethers as a toner fusing agent in a cold fusion process. The composition utilizes a uniform mixture of at least one chlorine-free hydrofluorocarbon or perfluorinated C1-C4 alkyl alkyl ether or mixture thereof, and preferably at least one toner stabilizer and/or an optional solvent. When used, the chlorine-free composition achieves satisfactory fusing and is more environmentally advantageous than chlorine containing toner fusing agents. The composition has a zero ozone depletion potential and a low global warming potential.

Abstract: An air brake compressor supply fitting for an internal combustion engine having a turbocharger and an exhaust gas recirculation (EGR) system is located downstream of the turbocharger and upstream of where the exhaust gas is introduced into the intake air of the engine. The supply fitting can be integrated into an outlet manifold of a charge air cooler (CAC associated with the turbocharger or into an EGR mixer for mixing exhaust gas with the intake air of the engine at a location in the EGR mixer upstream from the location where the exhaust gas is introduced into the intake air of the engine.

Abstract: A carbon dioxide adsorbent comprises a carbonized, shaped precursor material, with such material being characterized by a total micropore volume of at least about 0.525 cm3/g and a median pore diameter of at least about 0.439 nm, whereby the material has a carbon dioxide capacity of at least about 28.6% g/g at a carbon dioxide partial pressure of about 6 mm Hg and a temperature of about 196° K. Also provided is a method of making a carbon dioxide adsorbent, which includes the steps of polymerizing a monomer to produce a precursor material; shaping the precursor material to produce a shaped precursor material; and carbonizing the shaped precursor material to produce the adsorbent, whereby the adsorbent is characterized by a carbon dioxide capacity of at least about 28.6% g/g at a carbon dioxide partial pressure of about 6 mm Hg and a temperature of about 196° K.

Abstract: A microturbine power generation system includes an electrical generator, a turbine, a compressor and a combustor. Hot expanding gases leaving the combustor are expanded by the turbine. The resulting turbine power is used for driving the compressor and the electrical generator. A recuperator recovers heat from a turbine exhaust stream and raises the temperature of compressed air prior to combustion. Fluid injection is accomplished in the system by using one or more nozzles to spray small fluid droplets, on the order of hundreds of microns or less in diameter, into the combustion air either upstream or downstream of the compressor, or both. The evaporative effect of the injected fluid is used to cool the generator components and to increase the effectiveness of the recuperator. The injected fluid also adds mass to the hot, expanding gases entering the turbine.

Abstract: Vinyl ether compounds having the formula: R—O—X—O—CH═CH2 wherein R is a radical selected from R1—CnHm—, R1—CnHm—C(═O)—, R1—CnHm—CH[—O—X—O—CH═CH2—], R1—CnHm—CH[—O—X—O—CH═CH2—]C(═O)—, R1—CnHm—CH[—C(═O)—O—X—O—CH═CH2—], R1—CnHm—CH[—C(═O)—O—X—0—CH═CH2—]C(═O)—, R1—[CFCl—CF2—]pCH2— and HCFCl—CF2—, wherein R1 is hydrogen, an unsubstituted or substituted fluorinated aliphatic radical, an unsubstituted or substituted fluorinated cyclic aliphatic radical, an unsubstituted or substituted fluorinated aromatic radical, an unsubstituted or substituted fluorinated araliphatic radical, or an unsubstituted or substituted fluorinated heterocyclic radi

Abstract: A radial planar fuel cell stack comprises an internal manifold having a first interior cavity and a second interior cavity. A plurality of single cells having an anode layer, a cathode layer, and an electrolyte layer therebetween are disposed about the manifold. A manifold bracket operatively fixes the manifold to at least one of the single cells. The manifold bracket describes a channel in communication with at least one of the first and second interior cavities. A porous element is disposed in the channel and ensures uniform distribution of gases over 360°.

Abstract: A composite molding compound comprising a combination of metal and ceramic powders is disclosed. The powders are combined with a binder, a liquid carrier and other processing additives in a manner to provide uniform distribution of two phases in a material format that facilitates the molding of complex parts at relatively low pressures and temperatures using conventional injection molding machines. The products formed from these molding compounds may be designed with tailored physical and mechanical properties such as thermal conductivity, thermal expansion coefficient, density, elastic modulus and wear properties.

Abstract: This invention provides compositions of 1,1,1,3,3-pentafluoropropane, water and at least one hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane and hexane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.

Abstract: A lightweight, non-metallic valve is preferably formed of molded plastic. The valve has an hour-glass configuration or enlarged recesses formed therein to reduce the overall mass of the assembly and provide increased sensitivity to low flow rates. Sealing O-rings are snap fit into grooves at opposite ends of the symmetrical assembly.

Abstract: The invention provides processes for the formation of structures in microelectronic devices such as integrated circuit devices. More particularly, the invention relates to the formation of vias, interconnect metallization and wiring lines using multiple low dielectric-constant inter-metal dielectrics. The processes use two or more dissimilar low-k dielectrics for the inter-metal dielectrics of Cu-based dual damascene backends of integrated circuits. The use of both organic and inorganic low-k dielectrics offers advantages due to the significantly different plasma etch characteristics of the two kinds of dielectrics. One dielectric serves as the etchstop in etching the other dielectric so that no additional etchstop layer is required. Exceptional performance is achieved due to the lower parasitic capacitance resulting from the use of low-k dielectrics.

Abstract: A convertible aircraft brake assembly (10, 60, 77, 78, 83, 85, 96, 120, 130) designed as original equipment to have heat sinks comprising a steel heat sink (20, 70, 80, 90, 91, 100, 110, 122) aircraft brake assembly and a carbon-carbon composite heat sink (40) aircraft brake assembly. When the aircraft brake assembly is converted from one type of heat sink to the other, the conversion is accomplished with minimal changes in component parts. The conversion can be accomplished without any changes in the piston housing (14), torque tube (12), and wheel (30) because the heat sinks include therein respective components which enable each heat sink to be utilized with the commonly used piston housing (14), torque tube (12), and wheel (30).

Abstract: A method for designing a sensor using a dual double-ended tuning forks which provides composite cancellation of second-order non-linearity terms.

Abstract: A turbine engine (49) fuel delivery system of the type including a pneumatic governor has an electronic governor and an engine excess stress avoidance feature which disable the pneumatic governor (70) so long as the engine speed exceeds a prescribed value and an electronic control unit (45) continues to function properly. The system transfers governing responsibility to the electronic control unit (45) which controls a torque motor and solenoid valve fuel diversion line (22). The system monitors an engine (49) operating parameter such as gas generator speed (37), power turbine speed, engine output torque, or engine temperature and further diminishes fuel flow to the engine (49) when the monitored parameter exceeds a threshold value.

Abstract: Current flowing into and out of a battery installed in a vehicle (V) with the required cable between one of the battery terminals and a reference point on the vehicle is determined by measuring the voltage across the cable and computing the current from the digital value of the measured current. The resistance value of the cable can be known in which case the current is computed using Ohms law and a differential current sensor can be used to respond to the voltage measured across the cable to accommodate for different ranges of current. In an embodiment where the cable resistance is unknown, a reference current source produces a known voltage that is used to set the input value to an amplifier of fixed gain for the voltage measured across the cable by controlling the output of a potentiometer so that the amplifier output voltage can be set to match the reference current generator output voltage, thereby establishing the voltage output of the amplifier as a measurement of the current flow in the cable.

Abstract: An apparatus and method for determining the rate of angular rotation of a moving body and, in particular, for alignment of the dither motion and the Coriolis acceleration sensing direction in a sensor adapted to be formed, i.e. micromachined, from a silicon substrate.

Abstract: The present invention relates to a system for indoor air purification system to and particularly to a system for removing particulates, biologicals, and gaseous chemical contaminates through the use of low room temperature catalysts, a closed cycle heat exchanger a HEPA filter and polisher for removing NOx and SOx from the air flow.

Abstract: An armor system useful, for example, as a shroud, comprising a first pliable, cut resistant fibrous layer and a second pliable fibrous layer is disclosed. The first layer is arranged to receive an impact from a large projectile prior to the second layer and engages the projectile to slow its velocity. The second layer is substantially coextensive with the first and dissipates the incoming energy of the impact to resist complete penetration of the second layer by the projectile, preferably by deforming in response to the impact. Both layers comprise fibers having a tensile modulus of at least about 200 g/d, and an energy-to-break of at least about 8 J/g and a tenacity equal to or greater than about 10 g/d. In another embodiment, the layers are reversed relative to the impact face of the system sq that the second layer becomes the first layer and is resistant to projectiles impacting the system, while the first layer becomes the second layer and resists deformation of the system by projectile impacts.

Abstract: A microturbine power generation system includes an electrical generator, a turbine and a compressor intermediate the generator and the turbine. Rotating components of the turbine, compressor and electrical generator are secured together by a tie-bolt. The tie-bolt is pre-stressed such that faces of the rotating components of the turbine, electrical generator and compressor maintain contact during high-speed, high-temperature operation of the system. The tie-bolt includes a thermally less conductive short portion that is secured to the rotating component of the turbine wheel, and an elongated portion that extends through the rotating components of the compressor and electrical generator. The short, thermally less conductive portion of the tie-bolt inhibits heat from propagating from the turbine end towards the compressor. The short, thermally less conductive portion can be a titanium rod that is inertia-welded between the elongated portion of the tie-bolt and the rotating component of the turbine.

Abstract: A valve is disclosed for regulating the flow of a pressurized working fluid through a nozzle having a nozzle throat. In a preferred embodiment of the invention, the valve comprises a valve body defining a valve bore, a pressure inlet and a nozzle plenum. The nozzle plenum fluidly communicates with the nozzle throat. A valve seat is disposed between the pressure inlet and the nozzle plenum. A valve member is slidably disposed within the valve bore. The valve member comprises a first end disposed proximal the valve seat and a second end distal the valve seat. The first end comprises a valve face and the second end comprises first and second rear surfaces. The second rear surface is spaced apart from the first rear surface. The first rear surface cooperates with the valve bore to define a rear chamber. The second rear surface cooperates with the valve bore to define an actuation chamber, the volume of which is not a function of the valve member diameter.

Abstract: For gas turbine engine mounted in an aircraft, a closed loop control system, and method therefor, for the inlet duct is provided. Under this control system the flow area of the inlet duct is varied by opening and closing a duct door. The control assures that the position of the door is such that the delta P across the engine will not inhibit the starting of the engine in flight.