US Patent 7426912 Oil supply circuit for cylinder deactivation system
Patent 7426912 was granted and assigned to Hyundai Motor Company on September, 2008 by the United States Patent and Trademark Office.
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An oil supply circuit for a cylinder deactivation system having a simple structure and capable of being installed at a cylinder head without needing additional extraneous elements by forming an oil line within a cam shaft. An embodiment may include a hydraulic pump, a plurality of tappets for controlling opening of intake and exhaust valves, a first oil circuit connected to the hydraulic pump through an oil supply line and supplying a high pressure oil to the tappets, and a second oil circuit connected to the hydraulic pump and supplying an oil to the tappets. The second oil circuit includes an oil line formed in a hollow space of the cam shaft.
US Patent 07426912 Oil supply circuit for cylinder deactivation system US Patent 7426912 Oil supply circuit for cylinder deactivation system
US Patent 07426912 Oil supply circuit for cylinder deactivation system
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