Oil supply system for a valve operating mechanism in internal co

Details Oil supply system for a valve operating mechanism in internal co Oil supply system for a valve operating mechanism in internal co

1986-08-21

1988-03-08

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123196R, 184 69, F01M 106

Patent

active

047293497

ABSTRACT:
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 distribution 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 connected to another group of hydraulic lash adjusters. The second distribution passage is connected by air vent passages to a lubricating oil passage which supplies the camshaft with the lubricating oil. The joint passage is connected to one of the camshaft journals by a relief passage having a relief valve.

REFERENCES:
patent: 1580082 (1926-04-01), Ybarra
patent: 4512298 (1985-04-01), Hayashi
patent: 4559018 (1982-11-01), Wade

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