Variable camshaft timing system

Details Variable camshaft timing system Variable camshaft timing system

1988-05-10

1989-09-05

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, F01L 134

Patent

active

048628450

ABSTRACT:
A phase shift device utilized for the camshaft sprockets in a chain control device for an engine having separate camshafts for intake and exhaust valves in an internal combustion engine. A device supporting one or a pair of idler sprockets is shiftable, either pivotally or longitudinally to vary the chain path between a driving and a driven camshaft sprocket in such a way as to vary the phase of the driven sprocket relative to the driving sprocket. This device comprises a bracket which carries at least one idler sprocket and is either pivotally or longitudinally shiftable to vary the phase thus facilitating proper chain control.

REFERENCES:
patent: 3441009 (1969-04-01), Rafanelli
patent: 3683875 (1972-08-01), Chadwick
patent: 4685429 (1987-08-01), Oyaizu
patent: 4716864 (1988-01-01), Binder
patent: 4726331 (1988-02-01), Oyaizu
patent: 4744338 (1988-05-01), Sapienza, IV

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