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US 9,810,110 B2Granted
Valve lift control device with cylinder deactivation
AssigneeFord Global Technologies, LLC
InventorsGuenter Hans Grosch, Rainer Lach, Joerg Bonse
Life of this patent
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Abstract
Methods and systems are provided for a valve lift control device. In one example, a method may include rotating an adjusting camshaft of the valve lift control device in order to adjust a valve lift of one or more cylinders.
Claims7
A method, comprising:
- adjusting a valve lift of a valve coupled to a cylinder via an adjusting camshaft on a first side of an activation lever and a camshaft on a second side of the activation lever, the adjusting camshaft comprising radially offset cams such that the valve lift of the valve of the cylinder is individually adjusted based on an engine load, the activation lever including an end in face-sharing contact with a second lever coupled to a valve stem of the valve;
- wherein rotating the adjusting camshaft in a first direction increases an angular position of the activation lever and rotating the adjusting camshaft in a second direction decreases the angular position of the activation lever;
- wherein the second direction is opposite the first direction;
- and
- wherein rotating the adjusting camshaft in the second direction includes rotating the adjusting camshaft into a zero-lift position to deactivate the valve.
2 more elements
Dependencies are inferred from the claim text.