LIM-assisted air bearing in a transportation system
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United States of America Patent
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Jan 22, 2019
Grant Date -
Jan 14, 2016
app pub date -
Sep 23, 2015
filing date -
Aug 12, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A transportation system is disclosed that includes a monorail (or other vehicle) along a column-supported rail wherein a linear induction motor's (‘LIM’) connection to an assembly, to which the monorail/vehicle is attached, enables the LIM to essentially assist an air bearing, positioned between the rail and assembly, such that less air pressure is required. In some embodiments, a control system assists in adjusting the air pressure supplied—e.g., based on LIM data and/or weight (of vehicle and/or cargo). Further disclosed is a compliant air bearing that minimizes air loss during vertical and lateral curves, including embodiments where the air bearing is positioned relative to the rail such that a plenum area is smaller than a semi-enclosed cavity area. Additionally disclosed is a brake system that includes a brake pad attached to the air bearing that is engageable without the need to adjust the air bearing's air pressure.
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