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US 2009/0151675 A1Published application
Continuous variable valve lift apparatus
AssigneeHyundai Motor Company
InventorChung Han Oh
Life of this patent
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Abstract
A lift of a valve of an engine may continuously be varied by an apparatus that includes: an input cam provided on an input shaft; a pivot shaft provided in parallel with the input shaft; a lever that rotates around the pivot shaft by a rotation of the input cam and operates the valve; and a lift varying device capable of varying a relative distance between the pivot shaft and the input shaft.
Claims19
An apparatus for continuously varying a lift of a valve, comprising:
- an input cam provided on an input shaft;
- a support shaft positioned substantially in parallel with the input shaft;
- a lever rotating on the support shaft, the lever having surface cooperating with the input cam;
- a pivot shaft extending from the lever;
- a lift varying device cooperating with the pivot shaft, configured to vary valve lift in response to movement of the pivot shaft, based on rotation of the input cam.
2 more elements
Dependencies are inferred from the claim text.