Stroke-transmitting device
AssigneeDaimler AG
InventorsStefan Rudert, Thomas Stolk, Alexander von Gaisberg-Helfenberg
Life of this patent
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Abstract
In a stroke-transmitting device for a variable transmission of an operating stroke to a member to be actuated, specifically a gas exchange valve for an internal combustion engine, including a control unit with first and second control structures, a control cam is provided for coupling the first and second control structures and having different control regions which are displaceable for an adjustment of the stroke of the member to be actuated with at least first and second degrees of freedom for controlling the stroke transmitted to the member to be actuated.
Claims10
A stroke-transmitting device for a variable transmission of strokes to a means to be actuated, in particular for the variable transmission of a camshaft stroke to a gas-exchange valve (10) of an internal combustion engine, comprising a control unit having a first control means (11) and at least a second control means (12), at least one control cam (13, 14, 15, 16) coupling the first and second control means (11, 12) with contact regions (14, 34) and being displaceable relative to one another in a contact region of the control cam (13, 14, 15, 16) in at least one first degree of freedom (17) for a constant adjustment of the stroke, the first and second control means (11, 12) being axially displaceable relative to one another, and the first control means (11) being additionally also rotatable about its longitudinal axis (19) so as to provide for at least one second degree of freedom (18) differing from the first degree of freedom (17) in a contact region of the control cam (13, 14, 15, 16) in order to adjust the stroke.
Dependencies are inferred from the claim text.