Patent ID: 6318812
Filing Date: 2001-11-20
Classification: B60T

Abstract:
A vent valve to be used with a brake control valve having a pipe bracket with an emergency portion interface, the vent valve comprising:an emergency portion body with an interface configured to be mated with the emergency portion interface of the pipe bracket, the interface including first and second brake pipe ports and a volume port;a vent valve selectively connecting the first brake pipe port to a vent port on the body;a vent piston controlling the vent valve, the vent piston including a first side connected to the volume port and a second side;a discharge valve selectively connecting the second side of the vent piston to either the vent port or the volume port;an emergency piston controlling the discharge valve, the emergency piston including a first side connected to the volume port and a second side connected to the second brake pipe port; andthe body not including at least one of an inshot valve and an accelerated application valve.