Abstract:
A system for regulating the output of a high-voltage, high-power DC supply, the system includes a high-voltage DC power supply, a storage capacitor, and at least one non-dissipative regulator having an output voltage range less than an output voltage range of the high-voltage DC power supply. The regulator includes an internal storage capacitance and a control circuit configured to maintain a desired high-voltage output on a load.
Abstract:
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for internal combustion engines and in particularly for diesel engines having prechamber combustion systems. In one embodiment, a combustion system (10) can be provided with a pre-chamber (14) adapted to cooperate with a piston (12) in a manner that produces a highly efficient combustion process. In some embodiments, the pre-chamber (14) has passages (26,55) that have a variable cross-section and a variable angular orientation with respect to a centerline (LA3) of the pre-chamber body (14). In one embodiment, the piston (12) is provided with a number of surfaces that facilitate the flow of fuel and air within the combustion chamber (134). In some embodiments, the piston surfaces are generally aligned with angles of the combustion chamber (134) such as the angle of the intake and exhaust valves (16,18). In other embodiments the piston (12) has surfaces that are adapted to cooperate with a tip (24) of the prechamber (14).
Abstract:
This invention features a more compact and higher reliability power supply module including a high voltage DC input (101), a low voltage DC output (121), a number of DC/DC converters (150, 152, 154, 156, 158, 160) connected in parallel between the high voltage DC input and the low voltage DC output, and a controller (80) configured to modulate each DC/DC converter to convert the high voltage DC input to the low voltage DC output.
Abstract:
A resonant cavity combined solid-state amplifier system including a resonant cavity having at least one output port coupled to a high-power transmission line. A plurality of high-power transistors are each configured to generate a variable amount of power input directly into the resonant cavity. The plurality of high-power transistors may be configured such that a failure of one or more of the plurality of high-power transistors does not substantially impede operation of the resonant cavity. A plurality of output impedance matching networks each coupled to one of the plurality of high-power transistors and extending into the resonant cavity are configured to match an impedance of each transistor to an impedance of the resonant cavity and configured to electromagnetically couple power from each of the plurality of high-power transistors into the resonant cavity to provide a combined high-power output to the high-power transmission line.
Abstract:
A coreless transformer ultra-violet (UV) light source system comprising a bulb including a predetermined amount of an element which efficiently emits UV light when exposed to a high current plasma state and a predetermined amount of a buffer gas therein. An optically thin mesh primary surrounds a portion of the bulb. A pulsed radio frequency (RF) oscillator is coupled to the primary configured to drive high current pulses into the primary causing the light emitting element to form a conducting secondary comprised of the element in a plasma state thereby causing the element to efficiently emit UV light.
Abstract:
This invention features a more compact and higher reliability power source system for computing loads, the system including a high voltage DC bus connected to a number of DC sources each connected to the high voltage DC bus by a switch configured to deliver to the high voltage DC bus the DC source with the highest DC voltage, a low voltage DC bus connected to the computing loads, and a power supply including a number of DC/DC converters connected in parallel between the high voltage DC bus and the low voltage DC bus, and a controller configured to modulate each DC/DC converter to convert the high voltage on the high voltage DC bus to a low voltage output on the low voltage DC bus.
Abstract:
A high voltage converter system (50) including a high voltage line (54) at a first voltage level, a step-down device (58) connected to a second voltage level lower than the first voltage level, and a high voltage switch module (60) including a plurality of voltage limited controllable switch elements (62, 64 and 66) including components to limit the voltage across each the voltage limiting controllable switch element (62, 64 and 66) to predetermined voltage when each the voltage limiting controllable switch element (62, 64 and 66) is in an open state and to a zero voltage when each the voltage limiting controllable switch element (62, 64 and 66) is in a closed state. The voltage limiting controllable switch elements (62, 64 and 66) are typically connected in series between the power line and the step-down device (58). The high voltage down-converter system (50) also includes a control system to selectively set the open state and the closed state of each the voltage limiting controllable switch elements (62, 64 and 66) to control the current through the step-down device (58).
Abstract:
A solid-state direct cavity combiner (DCC) transmitter system for providing megawatts of power is featured. The system includes a resonant cavity including at least one high-power output transmission line, hundreds of high-power transistors each generating an amount of RF power input directly into the resonant cavity, and a plurality of modules each including at least one pair of high-power transistors differentially driving a transmission line and a coupling loop. Each said transmission line and coupling loop extends into the resonant cavity to match an impedance of each said high-power transistors of each said module to an impedance of said resonant cavity to electromagnetically couple power into the resonant cavity to provide the megawatts of power to the high-power output transmission line.
Abstract:
A pulsed electric field method for the continuous extraction of oil and lipids from small aquatic plants, the method including providing a continuous flow of a slurry of small aquatic plants. A continuous flow of small aquatic plants is directed to a treatment zone. Pulsed electric fields are applied to the treatment zone to lyse cell walls of the small aquatic plants to enhance extraction of oil and lipids therefrom.
Abstract:
A variable edge rotor blade (30) adapted to be driven by the rotor hub includes an airfoil section (30); a movable edge section (32) coupled to the airfoil section, and an actuator device (40) operating independently of the hub, disposed in the blade proximate the movable edge section, fixed to the airfoil section and coupled to the movable edge section for oscillating it between an increased lift and decreased lift position.