Anti-lock hydraulic brake system

An anti-lock hydraulic brake system having a master brake cylinder (2), a pump unit (17, 18), a supply reservoir (11) and at least one wheel brake, a brake line between the master brake cylinder (2) and the wheel brake into which an inlet valve (21, 22) is inserted, a relief line (25) between the supply reservoir (11) and the wheel brakes into which an outlet valve (23, 24) is inserted, a pressure line (15, 16) from the pump unit (17, 18) to the brake line (12, 13), said system comprising, in combination:

• a separating valve (14) in the brake line (12, 13) between the master brake cylinder (2) and the point where the pressure line (15, 16) terminates into the brake line, which valve is switched by pump pressure to assume its closed position, and a regulating valve (19) for generating a pump pressure in the pressure line (15, 16) proportional to the pressure in the master brake cylinder (2), wherein the valve passage (36) of the separating valve (14) is operatively coupled to and communicates with the valve passage (49) of the regulating valve (19) is arranged on the operating piston (30) of the separating valve (14), wherein a non-return valve (58) is inserted into the pressure line (15, 16) which closes towards an outlet of the pump, and, wherein an operating piston (44) of the regulating valve (19) is arranged in an operating piston (30) of the separating valve (14).

An anti-lock hydraulic brake system having a master brake cylinder (2), a pump unit (17, 18), a supply reservoir (11) and at least one wheel brake, a brake line (12, 13) between the master brake cylinder (2) and the wheel brake into which an inlet valve (21, 22) is inserted, a relief line (25) between the supply reservoir (11) and the wheel brakes into which an outlet valve (23, 24) is inserted, and a pressure line (15, 16) from the pump unit (17, 18) to the brake line (12, 13), said system comprising in combination:

• a separating valve (14) in the brake line between the master brake cylinder and the point where the pressure line terminates into the brake line, which valve is switched by the pump pressure to assume its closed position, and a regulating valve for generating a pump pressure in the pressure line (15, 16) proportional to the pressure in the master brake cylinder (2), wherein connected in parallel to the separating valve (14) is a charging chamber means (71), wherein an accumulator piston (74) is sealingly guided in the charging chamber means (71), one end face of said piston being adjacent to a master-cylinder pressure chamber, while its other end face is adjacent to an accumulator chamber (76).

An anti-lock hydraulic brake system having a master brake cylinder (2), a pump unit (17, 18), a supply reservoir (11) and at least one wheel brake, a brake line (12, 13) between the master brake cylinder (2) and the wheel brake into which an inlet valve (21, 22) is inserted, a relief line (25) between the supply reservoir (11) and the wheel brakes into which an outlet valve (23, 24) is inserted, and a pressure line (15, 16) from the pump unit (17, 18) to the brake line (12, 13), said system comprising:

• a separating valve (14) in the brake line between the master brake cylinder and the point where the pressure line terminates into the brake line, which valve is switched by the pump pressure to assume its closed position, and a regulating valve for generating a pump pressure in the pressure line (15, 16) proportional to the pressure in the master brake cylinder (2), wherein connected in parallel to the separating valve (14) is a charging chamber means (71), wherein an accumulator piston (74) is sealingly guided in the charging chamber means (71), one end face of said piston being adjacent to a master-cylinder pressure chamber, while its other end face is adjacent to an accumulator chamber (76), wherein the accumulator piston (74) is arranged as an annular piston (90) which is guided coaxially to the operating piston (30) of the separating or regulating valves.

An anti-lock hydraulic brake system having a master brake cylinder (2), a pump unit (17, 18), a supply reservoir (11) and at least one wheel brake, a brake line (12, 13) between the master brake cylinder (2) and the wheel brake into which an inlet valve (21, 22) is inserted, a relief line (25) between the supply reservoir (11) and the wheel brakes into which an outlet valve (23, 24) is inserted, and a pressure line (15, 16) from the pump unit (17, 18) to the brake line (12, 13), said system comprising:

• a separating valve (14) in the brake line between the master brake cylinder and the point where the pressure line terminates into the brake line, which valve is switched by the pump pressure to assume its closed position, and a regulating valve for generating a pump pressure in the pressure line (15, 16) proportional to the pressure in the master brake cylinder (2), wherein connected in parallel to the separating valve (14) is a charging chamber means (71), wherein an accumulator piston (74) is sealingly guided in the charging chamber means (71), one end face of said piston being adjacent to a master-cylinder pressure chamber, while its other end face is adjacent to an accumulator chamber (76), wherein the closure member (101a) of the separating valve (14) is provided as a slide which can be introduced into a bore (150).