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US 2009/0151674 A1Published application
Continuous variable valve lift apparatus
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSung Bong Park, Bosung Shin
Life of this patent
Estimating the term…
Abstract
A valve lift may be continuously varied by an apparatus that includes: an input cam provided on an input shaft; a mediating lever that moves upwards or downwards by the input cam and is formed with an output cam; a valve unit operated by the output cam; and a control device that is coupled to the mediating lever and is capable of changing a contact point between valve unit and the output cam of the mediating lever.
Claims11
A continuously variable valve lift apparatus, comprising:
- an input cam provided on an input shaft;
- a mediating lever that reciprocally moves by the input cam and is formed with an output cam;
- a valve unit operated by the output cam;
- and
- a control device that is coupled to the mediating lever and is capable of changing a contact point between valve unit and the output cam of the mediating lever.
2 more elements
A continuously variable valve lift apparatus, comprising:
- an input cam coaxially provided on an input shaft;
- a mediating lever comprising contact portion, output cam, and at least a pivot portion wherein the input cam contacts on the contact portion, and the contact portion and the output cam rotates pivotally with respect to the pivot portion in response to rotation of the input cam;
- a valve unit operated by the output cam of the mediating lever, comprising a pivot part, wherein the pivot part is positioned opposite to the pivot portion of the mediating lever with respect to rotation axis of the input shaft;
- and
- a control device that is coupled to the pivot portion of the mediating lever and changes a contact point between valve unit and the output cam of the mediating lever.
2 more elements
Dependencies are inferred from the claim text.