PISTON ASSEMBLY FOR DUAL-NETWORK DISK-BRAKE SYSTEM

摘要

A vehicle-brake system having a tandem or twin master cylinder for delivering the brake fluid to independent transmission networks each connected with one compartment of a disk brake whose actuating cylinder is located on one side of the brake disk and receives at least one piston defining its working compartments or chambers therein. A pair of pistons are provided, so that the chambers are disposed to one side of the direct-acting piston while the other piston applies pressure to the brake housing or to a force-transmission frame extending around the disk. A double-acting valve maintains the effective cross-section of the actuating assembly in spite of loss of pressure in one of the transmission networks.