Oil supply system for a valve operating mechanism in...

Details Oil supply system for a valve operating mechanism in... Oil supply system for a valve operating mechanism in...

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F01M 1/06 (2006.01) F01L 1/053 (2006.01) F01L 1/24 (2006.01) F01M 9/10 (2006.01) F01M 11/02 (2006.01) F02B 75/22 (2006.01)

Patent

CA 1328589

ABSTRACT OF THE DISCLOSURE Oil is supplied from an oil pump as working oil to hydraulic lash adjusters and also as lubricating oil to journals and cams of a camshaft. The oil passage system includes a first supply passage connected to the oil pump, a second supply passage connected between the first supply passage and a first distribu- tion passage coupled to a group of hydraulic lash adjusters, a joint passage connected to the first distribution passage, and a second distribution passage coupled to the joint passage and con- nected to another group of hydraulic lash adjusters. The second distribution passage is connected by air vent passages to a lub- ricating oil passage which supplies the camshaft with the lubri- cating oil. The joint passage is connected to one of the camshaft journals by a relief passage having a relief valve.

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