Timing system, particularly for an internal combustion engine wi

Details Timing system, particularly for an internal combustion engine wi Timing system, particularly for an internal combustion engine wi

1991-03-01

1992-03-10

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123 9022, 123308, F01L 114, F01L 126

Patent

active

050941976

ABSTRACT:
A timing system for controlling, via a single overhead camshaft, three or more valves of an internal combustion engine cylinder, each valve presenting a tappet located between each valve stem and a respective cam on the camshaft. The tappet axes are shifted laterally on alternate opposite sides in relation to the axes of the respective valve stems, so as to define a first predetermined eccentricity between the valve stem axes and the axis of each tappet. Moreover, the axis of each tappet is arranged eccentrically in relation to the rotation axis of the camshaft on the valve stem side, so as to define a second predetermined eccentricity in relation to the camshaft axis.

REFERENCES:
patent: 4615309 (1986-10-01), Yoshikawa
patent: 4915065 (1990-04-01), Yamada
patent: 5016592 (1991-05-01), Onodera

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