Patent ID: 7987824
Filing Date: 2011-08-02
Classification: F01L

Abstract:
1. A device for hydraulic control of gas exchange valves of a reciprocating internal combustion engine, with slave cylinders which are operatively connected to one or more gas exchange valves, with master actuators which are each operatively connected to at least one cam, provided with a basic profile and a cam profile, of a camshaft driven rotatably by the reciprocating internal combustion engine and which are connectable hydraulically to the slave cylinders, with a control apparatus which is governed by an actuating member and which controls quantities of hydraulic fluid supplied to the slave cylinders, and with at least one supply line, by means of which low-pressure fluid from a pressure source can be supplied to the device by means of at least one non-return valve, wherein the master actuators have cells delimited by movable blades, by a structural element carrying the movable blades and by walls, and the movable blades are operatively connected to the basic profile and the cam profile of the at least one cam.