The valve assembly (1) has a valve housing (2) that is provided with two housing halves (3,4) which divide the valve assembly into a pneumatic portion (5) and a hydraulic portion (6). The pneumatic portion is formed as a control chamber and the hydraulic p...

A controlled brake apparatus and method of operating a brake apparatus utilize a pre-charge circuit (88;94) connected directly between the fluid reservoir (16) of a master cylinder (12) of the apparatus and the inlet (42) of a controlled braking pump (40),...