RAPID BRAKE RELEASE VALVE MECHANISM WITH AN ELASTIC DIAPHRAGM

When compressed air is delivered from the brake valve to port a, rubber diaphragm 1 is raised and the air is directed through ports d and b to the brake chambers. At the same time, diaphragm 1 closes off air discharge to the atmosphere. When braking has been completed, the pressure under diaphragm 1 drops rapidly and the diaphragm is bent downward by the pressure of the air in the brake chambers a…