Valve train having a sliding cam element
AssigneeThyssenkrupp Presta Teccenter AG
InventorUlf Müller
Life of this patent
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Abstract
A valve drive may include a sliding cam element that is held on a carrier shaft so as to be axially displaceable along an axis of rotation of the carrier shaft. The sliding cam element may include at least one cam profile group with cam profile sections of mutually different form. The valve drive may further include a pick-off element by way of which a control movement can be picked off from the cam profile sections and transmitted to a valve. The sliding cam element may also include a second cam profile group that is similar or identical to the first cam profile group and, which for the joint control of one valve, may interact with the pick-off element.
Claims18
A valve drive comprising:
- a sliding cam element that is disposed on a carrier shaft so as to be axially displaceable along an axis of rotation of the carrier shaft, wherein the sliding cam includes a first cam profile group with first cam profile sections of mutually different form and a second cam profile group with second cam profile sections of mutually different form, wherein the first cam profile sections have a same configuration as the second cam profile sections;
- and
- a pick-off element by way of which a control movement is picked off from the first and second cam profile sections and transmitted to a valve, wherein the two cam profile groups interact with the pick-off element to jointly control the valve.
A valve drive comprising:
- a sliding cam element disposed on a carrier shaft and axially displaceable along an axis of rotation of the carrier shaft, wherein the sliding cam includes a first cam profile group having different first cam profile sections, and a second cam profile group having different second cam profile sections, wherein the first cam profile sections have a same configuration as the second profile section;
- and
- a pick-off element by way of which a control movement is transferred from the first cam profile sections to a valve, wherein the first and second cam profile groups interacts with the pick-off element to jointly control the valve, wherein the pick-off element is disposed between and couples the valve and a support, wherein the first cam profile group engages with a central portion of the pick-off element located between the valve and the support.
A valve drive comprising:
- a sliding cam element that is disposed on a carrier shaft so as to be axially displaceable along an axis of rotation of the carrier shaft, wherein the sliding cam includes a first cam profile group with first cam profile sections of mutually different form and a second cam profile group with second cam profile sections of mutually different form, wherein the first cam profile sections have a same configuration as the second cam profile sections;
- and
- a pick-off element by way of which a control movement is picked off from the first and second cam profile sections and transmitted to a valve, wherein the two cam profile groups engage with a portion of the pick-off element to jointly control the valve, wherein the portion of the pick-off element is configured to move in a same direction as the valve when the first and second cam profile sections move the pick-off element.
Dependencies are inferred from the claim text.