Flat belt continuously variable transmission with idler pulley t

Details Flat belt continuously variable transmission with idler pulley t Flat belt continuously variable transmission with idler pulley t

1988-05-31

1989-03-07

Bui, Thuy M.

Endless belt power transmission systems or components

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

474 49, 474111, 474136, F16H 712, F16H 5554

Patent

active

048102369

ABSTRACT:
A flat belt CVT is disclosed in which an idler pulley is situated intermediate variable diameter driving and driven pulley assemblies and within the axial dimension given by their respective inner guideway discs. the frame supporting the idler pulley is linearly moved on a rail by the slack side belt forces to automatically position the idler pulley in an intermediate position between the belt drive elements of the driving and driven pulley assemblies in accordance with their instantaneous effective diameters. While many arrangements are possible (positioning of the idler may be accomplished on or from either side of the center line between the two pulley assemblies, etc.), a preferred disposition is disclosed in which the idler pulley is situated in a region external to the slack belt side in order that the support apparatus for the idler need not enclose moving belts.

REFERENCES:
patent: 1370749 (1921-03-01), Kimble
patent: 3422692 (1969-01-01), Woodring
patent: 4295836 (1981-10-01), Kumm
patent: 4591351 (1986-05-01), Kumm
patent: 4607714 (1986-08-01), Uttenthaler
patent: 4714452 (1987-12-01), Kumm et al.

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