Chain drive tensioning and adjusting arrangement

Details Chain drive tensioning and adjusting arrangement Chain drive tensioning and adjusting arrangement

1991-03-04

1992-05-05

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9017, 123 9031, 474110, 474111, F01L 134, F01L 104

Patent

active

051098130

ABSTRACT:
An arrangement and method for the hydraulic tensioning and adjusting of a camshaft chain drive has a chain which winds around both camshafts. Together with its tensioning arrangement, the chain is shifted into its transverse direction. The load end of the chain is thus lengthened, and the loose end of the chain is shortened, or vice versa. Engine oil can be used as the hydraulic fluid. The fluid pressure rises with the rotational engine speed and is used either directly or by way of a control slide valve for adjustment of the tensioning arrangement.

REFERENCES:
patent: 3888217 (1975-06-01), Hisserich
patent: 4484543 (1984-11-01), Maxey
patent: 4685429 (1987-08-01), Oyaizu
patent: 4726331 (1988-02-01), Oyaizu
patent: 4862845 (1989-09-01), Butterfield et al.
patent: 4872426 (1989-10-01), Sapienza

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