Two-speed couplings

Details Two-speed couplings Two-speed couplings

1980-09-15

1983-11-01

Herrmann, Allan D.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

192104C, F16H 374, F16H 546, F16D 4316

Patent

active

044124600

ABSTRACT:
A two-speed drive coupling for connecting an engine of a motor vehicle with an accessory such as an alternator. The coupling comprises a driving member and a driven member with a sun gear being mounted on the driven member. A planet gear wheel holder is carried on the driving member and carries planet gear wheels which mesh with the sun gear and with a crown gear locked against rotation and surrounding the sun gear. A unidirectional coupling is provided between the driving member and the driven member and a centrifugal clutch between the driving member and the holder. At low speeds of the driving member, the clutch is engaged and the driven member is rotated at a greater speed than the driving member through the planet gear wheels and the sun gear. At higher speeds of the driving member, the clutch disengages and the driven member is rotated directly by the driving member through the unidirectional coupling.

REFERENCES:
patent: 3702084 (1972-11-01), Kepple et al.

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