UNITIZED RAILCAR BRAKE EQUIPMENT

摘要

A unitized railcar brake equipment can have a relatively small integrat ed air supply and can be controlled electronically. The equipment can have a brake cylinder portion and a control valve portion. The brake cylinder portion can have a brake cylinder housing a piston head with a rod end of the piston connected to a railcar brake member. A pair of air chambers communicate on opposite sides of the piston head and an air reservoir can be integral with the brake cylinder housing. Selective coupling of the air chambers and the air reservoir to each other, a source o f pressure, or to the atmosphere can be controlled by appropriate valves to control the pressure in the brake cylinder.