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Full-Text Articles in Mechanical Engineering
Distributed Control System For Parallel-Connected Dc Boost Converters, Steven Goldsmith
Distributed Control System For Parallel-Connected Dc Boost Converters, Steven Goldsmith
Michigan Tech Patents
The disclosed invention is a distributed control system for operating a DC bus fed by disparate DC power sources that service a known or unknown load. The voltage sources vary in v-i characteristics and have time-varying, maximum supply capacities. Each source is connected to the bus via a boost converter, which may have different dynamic characteristics and power transfer capacities, but are controlled through PWM. The invention tracks the time-varying power sources and apportions their power contribution while maintaining the DC bus voltage within the specifications. A central digital controller solves the steady-state system for the optimal duty cycle settings …
Wire Neutralization System, Scott A. Bradley, Jason Wiitanen, Timothy B. Smigowski, John T. Niemeyer, Andrew Culkin
Wire Neutralization System, Scott A. Bradley, Jason Wiitanen, Timothy B. Smigowski, John T. Niemeyer, Andrew Culkin
Michigan Tech Patents
A wire neutralizing system for use with a vehicle including a frame adapted to be hitched to a vehicle. At least one wheel supports the frame while a bottom of the wheel rolls over terrain having buried wires. The system also includes a blade movable between a stowed position in which the blade is above the bottom of the wheel and a deployed position in which the blade is below the bottom of the wheel, such that the blade plows through the terrain to disable buried wires when in the deployed position.
Anti-Icing Coatings And Methods, Russell G. Alger
Anti-Icing Coatings And Methods, Russell G. Alger
Michigan Tech Patents
A method of inhibiting or preventing bonding between snow or ice and a substrate. The method includes applying an adhesive to the substrate, broadcasting an aggregate onto the adhesive, the aggregate having the capacity to receive an anti-icing chemical into the aggregate, and applying the antiicing chemical onto the aggregate so that at least a portion of the anti-icing chemical is received into at least a portion of the aggregate.
Snow Groomer Assembly, Philip J. Quenzi, Russell G. Alger
Snow Groomer Assembly, Philip J. Quenzi, Russell G. Alger
Michigan Tech Patents
A snow groomer includes a movable platform, a prime mover mounted to the platform and a grooming drum rotatably driven by the prime mover for rotation in a direction opposite the traveling direction of the snow groomer. The grooming drum includes axially spaced apart and radially protruding ribs that extend circumferentially around the drum. The ribs include circumferentially spaced apart apertures and the apertures of each rib are aligned with the apertures of the other ribs. Elongated cutting teeth extend through the apertures of the ribs and have a cross-sectional area that is smaller than the apertures such that the …