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US 2009/0151670 A1Published application
Variable valve apparatus
AssigneeHyundai Motor Company
InventorSung Bong Park
Life of this patent
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Abstract
A variable valve apparatus includes a swing arm that includes a first body that pivots in response to rotation of an input cam, and a second body hingedly connected to the first body at a first connection. A connecting portion connects and disconnects the bodies at a second connection, in response to hydraulic pressure supplied thereto. When hydraulic pressure is not supplied to the connecting portion, the second body is connected to the first body and pivots along with the first body to open a valve.
Claims5
A variable valve apparatus comprising a swing arm, the swing arm comprising:
- a first body configured to pivot in response to a rotation of an input cam;
- a second body hingedly connected to the first body at a first connection;
- and
- a connecting portion configured to connect and disconnect the first body and the second body at a second connection in response to hydraulic pressure supplied thereto, such that when the hydraulic pressure is not supplied to the connecting portion, the second body is connected to the first body and pivots along with the first body to open a valve.
1 more element
Dependencies are inferred from the claim text.