Patent ID: 6086163
Filing Date: 2000-07-11
Classification: B60T

Abstract:
An air manifold allowing at least partial electronic control of a passenger train pneumatic braking system including: a brake application relay valve, a service valve, a pipe bracket, a control reservoir of pressurized air, a brake pipe, and a braking device; the service valve and pipe bracket each comprising:a control reservoir passageway in pneumatic communication with the control reservoir;a brake pipe passageway in pneumatic communication with the brake pipe; anda relay passageway in pneumatic communication with the brake application relay valve;the manifold being interposed between the service valve and the pipe bracket, the manifold comprising:a manifold control reservoir passageway pneumatically connecting the control reservoir passageways of the service valve and pipe bracket;a manifold brake pipe passageway pneumatically connecting the brake pipe passageways of the service valve and pipe bracket;a manifold relay passageway for selectively and pneumatically connecting the relay valve passageways of the service valve and pipe bracket;an electronically controlled fill valve operative to selectively interrupt and permit a flow of pressurized air from the control reservoir through the manifold control reservoir passageway to the manifold relay passageway;an electronically controlled vent valve operative to vent pressurized air from the manifold relay passageway; andan electronically controlled bypass valve operative to select between electronic and pneumatic control of the pneumatic braking system.