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Alan Z. Ullman, Northridge US

Alan Z. Ullman, Northridge, CA US

Patent application numberDescriptionPublished
20090000572METHOD AND APPARATUS FOR VAPORIZING LIQUID - An apparatus and method for vaporizing liquid are provided which employ a plurality of rods disposed within a storage vessel that serve as the heat transfer element. While the plurality of rods are generally submerged by the liquid fuel to facilitate heat transfer and vaporization of the liquid fuel, the rods may be packed closely together such that the liquid inventory required to maintain the rods in a submerged state is substantially less than required by conventional fuel supply systems, thereby permitting the weight of a fuel supply system that incorporates the apparatus and method to be reduced while still permitting effective vaporization of the fuel.01-01-2009
20090052478Beam Director Flow Control - Systems and methods are described for controlling flow disturbances emanating from a protrusion, such as a beam propagating device. In one embodiment, a method includes positioning a flow control element at least partially around a base portion of a protrusion, wherein the flow control element includes at least one flow expanding feature. A reduced pressure zone is generated proximate an aft portion of the protrusion by expanding at least a portion of a flowfield. One or more flow disturbances emanating downstream from the protrusion are deflected using the at least one reduced pressure zone.02-26-2009
20090249796Thermally-Balanced Solid State Cooling - Apparatus, systems, and methods provide for the cooling of a system on an aircraft or other platform. According to embodiments described herein, a first coolant is routed through a heat-producing system to absorb heat and maintain the system at a desired temperature. The first coolant is routed through a thermoelectric chiller for cooling before returning to absorb further heat from the system. Thermoelectric cooler modules within the chiller transfer heat from cold plates containing the first coolant to hot plates containing a second coolant. The second coolant absorbs the transferred heat and is routed to a radiator, where the heat is discharged into an ambient air stream. The second coolant is routed back to the hot plates to absorb further heat.10-08-2009
20090249808Evaporative Cooling for an Aircraft Subsystem - Apparatus, systems, and methods provide for the cooling of an aircraft subsystem. According to embodiments described herein, coolant is routed through a heat-producing subsystem to absorb heat from the subsystem and to maintain the subsystem at a desired temperature. Bleed air from an aircraft engine is cooled, dehumidified, and routed to a cooling mechanism. In the cooling mechanism, a portion of the heated coolant is evaporated into the dehumidified bleed air, cooling the remaining coolant. The reduced-temperature coolant is routed back to the subsystem to absorb further heat. Humid air from the cooling mechanism and drying process may be utilized by other aircraft subsystems.10-08-2009
20090260781THERMAL BUFFER SYSTEM - A thermal buffer for an intermittent thermal load, e.g., a directed energy weapon (DEW) system, includes a phase change heat exchanger (PCHEX), an apparatus for circulating a first working fluid of the thermal load through first conduits of the PCHEX cell in a first direction such that heat is transferred between the first fluid and a phase change material (PCM) of the PCHEX in a second direction and causes a first phase change in the PCM, and an apparatus for circulating a second working fluid of, e.g., a heat pump through second conduits of the PCHEX in a third direction opposite to the first direction such that heat is transferred between the second fluid and the PCM in a fourth direction opposite to the second direction and results in a second phase change in the PCM opposite to the first phase change therein.10-22-2009
20100078863ATMOSPHERIC TURBULENCE ISOLATION SYSTEM AND METHOD - A vibration isolation assembly for an aerodynamic object comprises a viscoelastic inner layer disposed on the aerodynamic object and being configured to attenuate vibration. The vibration isolation assembly further comprises a rigid or stiff outer layer disposed on an inner layer. The vibration isolation assembly may attenuate the transmission of aerodynamically-induced vibration to components contained or mounted to the aerodynamic object.04-01-2010
20100236758CHEMICAL REACTION-BASED THERMAL MANAGEMENT SYSTEM AND METHOD - The disclosure provides for a chemical reaction-based thermal management system and method. The system comprises a heat source for heating a first flow element, a heat exchanger for transferring heat from the first flow element to a reaction mixture flow, and a heat sink comprising one or more endothermic chemical reactions to absorb heat from the heat exchanger. The system further comprises a reactor element for approaching chemical equilibrium of the reaction mixture flow, a product removal element for removing one or more products from the one or more endothermic chemical reactions, and a plurality of driver elements for moving the first flow element and for moving the reaction mixture flow.09-23-2010
20110075234WINDOW MOUNTED BEAM DIRECTOR - A laser system employs a window integrated in the surface of a weapon platform. A high energy laser is mounted in the weapon platform to provide a laser beam which is received by a Coude' path for internal direction of the beam. A beam director receives the laser beam from the Coude' path and employs an outer steering assembly and an inner steering assembly to cooperatively provide pointing of a centerline of the laser beam at a substantially single location on the window for a full conical field of regard.03-31-2011

Patent applications by Alan Z. Ullman, Northridge, CA US