Patent ID: 11938913
Assignee: ZF CV SYSTEMS GLOBAL GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. The power brake system (1.1, 1.2, 1.3) as claimed in claim 1,
wherein the brake control valve (56; 70) is a 3/3-way proportional valve with a pressure medium inlet, a pressure medium outlet and a working port,
wherein the working port is continuously adjustable between connection to the pressure medium outlet and the pressure medium inlet, wherein the pressure medium inlet is connected to a pressure medium source (14) via a supply line (52),
wherein the pressure medium outlet is connected to a pressure medium sink (16b),
wherein the working port is connected to the at least one brake cylinder (62a, 62b; 62a′, 62b′; 82a, 82b) via the working line (60; 60′; 74, 80),
and the working port of the brake control valve (56; 70) is connected to the pressure medium outlet in a non-energized state of the brake control valve (56; 70) and to the pressure medium inlet in a maximally energized state of the brake control valve (56; 70).