Roof assembly and airflow management system for a temperature controlled railway car

A roof assembly for a railway car comprising:

• the roof assembly having a generally elongated, rectangular configuration;
• an air plenum assembly attached to and extending from an interior surface of the roof assembly;
• the air plenum assembly operable to receive air from a temperature control unit and to provide portions of an airflow path from the temperature control unit;
• the air plenum assembly formed in part by a plurality of plenum panels disposed adjacent to each other;
• and
• respective hanger assemblies attaching the plenum panels with the roof assembly.

A hanger assembly for use in attaching an air plenum panel with a roof assembly comprising:

• a first support and a second support with a cable assembly extending therebetween;
• a first end of the cable assembly engaged with the first support;
• a second end of the cable assembly releasably engaged with the second support;
• and
• a third support disposed between the first support and the second support to limit movement of an attached air plenum panel away from the second support.

A roof assembly for a temperature controlled railway car having a composite box structure mounted on a railway car underframe comprising:

• the roof assembly having a generally elongated, rectangular configuration corresponding approximately with configurations of the composite box structure and the railway car underframe;
• the roof assembly having a generally arcuate configuration extending from a first longitudinal edge of the roof assembly to a second longitudinal edge of the roof assembly;
• the roof assembly having a cross section defined in part by a first layer of fiber reinforced plastic and a second layer of fiber reinforced plastic;
• the first layer and second layer cooperating with each other to encapsulate insulating material therebetween;
• the first longitudinal edge and the second longitudinal edge of the roof assembly formed in part from at least the two layers of fiber reinforce plastic;
• a plurality of trim moldings attached to and extending between the roof assembly and adjacent interior portions of the composite box structure;
• the trim moldings having generally arcuate configurations;
• and
• an air plenum assembly attached to and extending from an interior surface of the roof assembly.