Serpentine drive with coil spring-one-way clutch alternator conn

Details Serpentine drive with coil spring-one-way clutch alternator conn Serpentine drive with coil spring-one-way clutch alternator conn

1991-06-05

1992-10-20

Novosad, Stephen J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including separate belt on each of coaxial pulleys...

192415, 1921062, 474135, 474903, F16D 1308, F16D 4321, F16H 712

Patent

active

051565730

ABSTRACT:
A serpentine belt drive system for an automotive vehicle in which the sequence of driven assemblies includes an alternator assembly comprising a housing and an armature assembly mounted in the housing for rotation about an armature axis. A hub structure is carried by the armature assembly outwardly of the housing for rotation therewith about the armature axis. A coil spring and one-way clutch mechanism is disposed in operative relation between the alternator pulley and the hub structure for (1) transmitting the driven rotational movements of the alternator pulley by the serpentine belt to the hub structure such that the armature assembly is rotated in the same direction as the alternator pulley while being capable of instantaneous relative resilient rotational movements in opposite directions with respect to the alternator pulley during the driven rotational movement thereof and (2) allowing the hub structure and hence the armature assembly to rotate at a speed in excess of the rotational speed of said alternator pulley when the speed of the engine output shaft is decelerated to an extent sufficient to establish the torque between said alternator pulley and said hub structure at a predetermined negative level.

REFERENCES:
patent: 2866349 (1958-12-01), Heckethorn
patent: 2885896 (1959-05-01), Hungerford, Jr. et al.
patent: 2886977 (1959-05-01), van Ausdall
patent: 4031761 (1977-06-01), Fisher et al.
patent: 4473362 (1984-09-01), Thomey et al.

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