Mechanical control of the intake valve lift adjustment in an internal combustion engine

A mechanically controllable valve lift adjustment for an internal combustion engine having multiple cylinders, including:

• at least one lifting lever (4) per cylinder, which has
• a means (30) bearing the lifting lever (4) rotatably and displaceably in a connecting member (5),
• a means (31) cooperating with a camshaft (28) driving the lifting lever (4), and
• a working curve (6),
• a means (8) which cooperates with the means (30) of the lifting levers (4), displacing the latter in the connecting members (5),
• a camshaft (28) which cooperates with the means (31) of the lifting lever (4) and drives the latter,
• a roll drag lever (1) which cooperates with the working curve (6) of the lifting lever (4), being moved by same,
• at least one valve per cylinder, which cooperates with the working curve (6) of one lifting lever (4) at a time, being moved by same, characterized in that the means (8) is a driven rail held displaceably in a bearing in the housing (11, 12) of the internal combustion engine.