LEERLAUFVORRICHTUNG EINER HYDRAULISCHEN PUMPE.

摘要

An unloader controlling the output of a hydraulic pump, for example, in a constant pressure-type motor vehicle braking circuit. Delivery to hydraulic accumulators in the circuit is halted by a resilient seal (11) defining a gap forming part of the inlet fluid flowpath to the pump and to which the pump delivery pressure is applied, in the sense to close the gap, by a valve (14) operable when the delivery pressure reaches a predetermined value.