Patent ID: 8770161

Claim:
A valve lift device for a combustion engine, the valve lift device comprising: a camshaft having a rotational axis; a first guide surface on the camshaft, a first protruding portion on the first guide surface; a first unit comprising a first contact device in contact with the first guide surface, the first unit is configured and operable for undergoing a lifting movement when the first contact device comes into contact with the first protruding portion of the first guide surface; a motion-transmitting mechanism configured and operable for converting the lifting movement of the first unit for lifting at least one valve of the combustion engine; an adjusting device configured and operable for allowing linear movements of the first unit causing linear movement of the first contact device in a plane perpendicular to the camshaft's rotational axis, between at least a first contact position of the first contact device on the first guide surface and a second contact position of the first contact device on the guide surface; a second guide surface on the camshaft, a second protruding portion on the second guide surface; a second unit comprising a second contact device in contact with the second guide surface on the camshaft, the second unit is configured and operable for undergoing a lifting movement when the second contact device comes into contact with the second protruding portion of the second guide surface; wherein the first and second units are connected to the motion-transmitting mechanism in such a configuration that the one of the first and second units which at the time undergoes the higher lift of its guide surface transmits that lift to the valve; wherein one of the units is directly connected to the motion-transmitting mechanism and the other unit comprises a contact portion entering into engagement with a contact portion of the directly connected unit for lifting the directly connected unit when the other unit undergoes a higher lift of the respective guide surface thereof than the guide surface of the directly connected unit.