Single pump

Brake chamber for clamp clamping diaphragm. Before and after the brake chamber size is different, but its structure is basically the same, as shown. It consists of inlet, cover, diaphragm, bearing plate, return spring, shell, push rod, connecting fork, clip and bolts, etc.
Brake chamber shell and cover is made of steel sheet stamping, with clip, bolt together, form the whole shell, with fabric rubber diaphragm between them, the entire outer shell of diaphragm will be separated into two mutually completely isolated air chamber. Air chamber through double cavity between the diaphragm and cover brake valve, air chamber Chang Tong diaphragm between the shell and the atmosphere. When free state, the diaphragm and the cover plate is clingy, and on the other side and putting in contact on the disk, disk and casing with return spring between end face, push rod fork at the other end is equipped with connections, is used to connect brake slack adjuster. The brake chamber bolted on the special support.
When car brake, air brake chamber from the inlet into the people, under the effect of air pressure makes the deformation of diaphragm, and driven push rod, and drive the brake slack adjusters, brake CAM rotation, the brake shoe friction plate pressure to the brake drum and brake.
When auto lift brake, brake chamber of the compressed air brake valve by double cavity or quick release valve exhaust air, diaphragm and push rod under the action of a return spring to restore the original state.