Leveling railway vehicle and related systems and methods
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United States of America Patent
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Apr 19, 2016
Grant Date -
Jan 22, 2015
app pub date -
Feb 21, 2012
filing date -
Feb 22, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Leveling railway vehicles, leveling secondary suspension systems, lift-systems for suspension systems, and other related systems and methods are shown and described. In one example, a railway vehicle includes a superstructure, a bogey, and a leveling secondary suspension system. The leveling suspension system includes at least one spring positioned between the superstructure and the bogey, and a secondary suspension-mounting lift system (SMLS) interfaced with coil spring. The SMLS includes a spring-mount (SM) and a piston assembly. In operation, pressurized hydraulic fluid acts on the piston and lifts the superstructure, thereby allowing the superstructure's access to be raised to a desired height, e.g. a platform height.
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