Active damper for a planetary gear arrangement

Details Active damper for a planetary gear arrangement Active damper for a planetary gear arrangement

2005-12-13

2005-12-13

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

Planetary gearing or element

Floating or flexible coupling or support

C475S331000, C192S218000

Reexamination Certificate

active

06974401

ABSTRACT:
A planetary gear arrangement having at least three rotatable members with intermeshing gears and a primary torque path defined therein. At least one active friction damper is disposed between two of the planetary gear members, for example, a sun gear and a ring gear. The active damper is selectively operable to apply frictional engagement between the two members with which it is interconnected to establish a controlled secondary torque path therebetween. The active damper is effective to reduce gear lash changes between the gear members of a planetary assembly.

REFERENCES:
patent: 5766109 (1998-06-01), Sudau
patent: 5863274 (1999-01-01), Jackel
patent: 6398655 (2002-06-01), Orlamunder et al.
patent: 6477909 (2002-11-01), Gilbert et al.
patent: 6652409 (2003-11-01), Kao et al.
patent: 6705966 (2004-03-01), Schröder et al.

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