Timing chain drive unit

Details Timing chain drive unit Timing chain drive unit

2008-12-04

2011-11-22

Kim, Sang (Department: 3654)

Endless belt power transmission systems or components

Pulley having circumferentially spaced portions of drive...

C474S160000, C474S162000

Reexamination Certificate

active

08062158

ABSTRACT:
In a timing chain drive unit the tooth pitch of a driven sprocket from which a tension span of the chain travels toward a driving sprocket varies cyclically around the circumference of the driven sprocket and cyclically increases and decreases the length of the tension span in synchronism with load variations imparted to the driven sprocket by a valve-operating camshaft.

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