Unattended Railcar Motion Control System
AssigneeEnersul, Inc.
InventorsMark Charles Engelland, Trevor Michael Greer, David Alexander Shaw
Life of this patent
Estimating the term…
Abstract
A method and mechanism for initiating an emergency stop for an unattended railcar is disclosed. The method may include using a trip arm placed alongside the railway tracks at a designated stop point that may contact a portable trip-cock lever arm that extends out beyond the perimeter of the railcar if the railcar reaches the stop point as it moves along the track. The trip-cock lever arm may be attached to a valve that is connected to the pneumatic brake system of the unattended railcar. As the trip-cock lever arm rotates, the valve may open to release the air pressure in the pneumatic brake system causing the brakes to engage the wheels causing the railcar to stop.
Claims17
1-16. (canceled)
A braking system for a railcar comprising:
- an air compressor configured to supply compressed air to the braking system;
- a main reservoir connected to the air compressor;
- a regulating valve connected to the main reservoir;
- a source brake pipe connected to the regulating valve, wherein the source brake pipe is connected to a brake pipe of a railcar;
- and
- a fluid injector arranged between the regulating valve and the source brake pipe, wherein the fluid injector injects a fluid into the braking system, wherein the fluid has a freezing point below −40° C.
Dependencies are inferred from the claim text.