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US 2009/0151685 A1Published application
Variable valve lift apparatus
AssigneeHyundai Motor Company
InventorChung Han Oh
Life of this patent
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Abstract
A variable valve lift apparatus according to an exemplary embodiment of the present invention includes an inner body contacting an input cam, an outer body connected with a valve, a lost motion spring disposed between the inner body and the outer body for supplying restoring force to the inner body, a return pin assembly supplying connecting force to the inner body and the outer body, and an operating portion selectively disconnecting the inner body from the outer body.
Claims8
A variable valve lift apparatus comprising:
- an inner body contacting an input cam;
- an outer body connected with a valve, wherein the outer body slidably encloses the inner body;
- a lost motion spring disposed between the inner body and the outer body for supplying restoring force to the inner body;
- a return pin assembly supplying connecting force to the inner body and the outer body;
- a pin guide formed in a cylinder head and slidably coupling a portion of the return pin assembly;
- and
- an operating portion selectively disconnecting the inner body from the outer body by applying an operating force to the inner body according to operating mode, wherein the connecting force of the return pin assembly and the operating force of the operating portion are configured to be applied opposite each other with respect to a rotational axis of the inner body.
4 more elements
Dependencies are inferred from the claim text.