SYSTEMS AND METHODS FOR RETARDING THE SPEED OF A RAILCAR
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United States of America Patent
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Issued Date -
Sep 28, 2023
app pub date -
Mar 22, 2023
filing date -
Mar 24, 2022
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Abstract
A system for retarding a railcar having wheels. The system includes a brake and an actuator that moves the brake between a closed position in which the brake contacts the wheels of the railcar and an open position in which the brake does not contact the wheels of the railcar. The system further includes a hydraulic circuit through which a hydraulic fluid flows between the actuator and a reservoir. A first pump is operably connected within the hydraulic circuit and configured to provide the hydraulic fluid to the actuator for operating the brake. A heat exchanger is operably connected within the hydraulic circuit and configured to cool the hydraulic fluid flowing therethrough. A second pump is operably connected within the hydraulic circuit and configured to provide the hydraulic fluid to the heat exchanger. The heat exchanger prevents the hydraulic fluid within the hydraulic fluid from exceeding a target operating temperature.
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