Systems for retarding the speed of a railcar
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United States of America Patent
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May 7, 2019
Grant Date -
Apr 5, 2018
app pub date -
Dec 5, 2017
filing date -
Mar 11, 2014
priority date (Note) -
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Abstract
A system for retarding the speed of a railcar comprises a brake; a hydraulic actuator moving the brake between a closed position in which the brake applies braking pressure on the wheel of a railcar, and an open position in which the brake does not apply braking pressure on the wheel of the railcar; a hydraulic circuit provided with a pump arrangement for supplying hydraulic fluid to the hydraulic actuator; and a control circuit coupled to the hydraulic circuit for controlling the flow of hydraulic fluid to move the brake between the closed and open positions.
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