Hydrostatic hi-rail system
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United States of America Patent
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-
Apr 10, 2007
Grant Date -
Sep 18, 2003
app pub date -
Jan 17, 2003
filing date -
Mar 18, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydrostatic hi-rail system for use with a railway maintenance vehicle to allow travel along railway rails by raising the vehicle off of road-engaging tires onto rail-engaging flanged rail wheels. The operator controlled system includes front and rear lift assemblies, which are mounted to the front and rear of the vehicle. The assemblies include hydraulic motors, couplers and fail-safe brakes. The system is powered by the vehicle's power source such as an engine and a hydraulic power source such as the vehicle's hydraulic pump.
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