Electronic compressed-air processing system
AssigneeKnorr-Bremse Systeme fur Nutzfahrzeuge GmbH
InventorEduard Hilberer
Life of this patent
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Abstract
A compressed-air processing system, notably for motor vehicles, includes, in a housing, an electromagnetic pressure regulator and a multicircuit safety valve having at least one load circuit connected to it. Each load circuit can be locked separately by an assigned pressure control unit. Reliable and economical operation of the system is achieved by positioning a pressure limiter between at least one of the pressure control units and the pressure regulator output and by the fact that in the zero-current state, the pressure limiter acts on a supply hole for the control unit so as to limit the output pressure to a defined value.
Claims13
A compressed air processing system for motor vehicles, comprising:
- an electromechanical pressure regulator and a multicircuit safety valve having at least one load circuit connected thereto, each load circuit being separately lockable by an assigned pressure control unit of a plurality of pressure control units, said pressure regulator and said multicircuit safety valve being disposed in a housing, and
- a pressure limiter arranged between at least one of the pressure control units and a pressure regulator output,
- wherein, in a zero-current condition, the pressure limiter limits a supply hole for at least one of the pressure control units to a defined output pressure,
- wherein the housing also comprises a pressure regulator solenoid valve for controlling the pressure regulator,
- wherein the housing also comprises a regeneration solenoid valve by which the pressure regulator is controlled, and
- wherein the pressure limiter has a two-circuit construction and is held in an open position by the regeneration solenoid valve and then by the pressure regulator solenoid valve.
Dependencies are inferred from the claim text.