INTERNAL-COMBUSTION ENGINE HAVING TWO HYDRAULIC LIQUID LOOPS

摘要

An internal-combustion engine having two hydraulic fluid circuits which are connected in parallel and are supplied by means of a bypass restrictor on the control valve, from a source having a pump. Hydraulic circuits having two parallel loops in a supply unit which are supplied by means of a pump and in which one circuit has control valves with a specific opening pressure and with a specific flow characteristic generally provide an inadequate supply to one of the two loops under specific transient, operationally-dependent conditions. In the case of the fluid circuit with valves, one control valve is integrated with a bypass restrictor, as a result of which the inadequate supply of the loop provided with valves is circumvented such that a minimum supply of this loop is made possible even when the valve is closed.