Method for chain meshing phasing on a V-engine camshaft drive to

Details Method for chain meshing phasing on a V-engine camshaft drive to Method for chain meshing phasing on a V-engine camshaft drive to

1998-08-14

2000-02-29

Graysay, Tamara L.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster has surface in sliding contact with belt

474140, 474148, 474150, 474 84, F16H 708, F16H 718, F16H 724

Patent

active

060303069

ABSTRACT:
A chain drive system for use primarily in automotive timing drives, in particular V-type engines and horizontally opposed engines having a separate chain drive for each bank with coaxial crankshaft driving sprockets, wherein the chain meshing for these driving sprockets is staggered from bank-to-bank in order to reduce the chain drive system noise level. This engagement phasing is accomplished by offsetting the taut strand guide of one bank some amount greater than the opposite bank, effectively increasing the chain wrap and thereby compelling a delayed roller-sprocket engagement with respect to the opposite bank. The roller collision during meshing will therefore be phased from bank-to-bank, and the resulting noise levels generated therefrom will be reduced as a result of this phasing.

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