Overrunning coupling assembly having improved shift feel...

Details Overrunning coupling assembly having improved shift feel... Overrunning coupling assembly having improved shift feel...

2007-10-02

2007-10-02

Bonck, Rodney H. (Department: 3681)

192 clutches and power-stop control

Clutches

Automatic

C192S03000R, C192S052600, C192S069100

Reexamination Certificate

active

11148513

ABSTRACT:
An overrunning coupling assembly having improved shift feel and/or noise reduction is provided. The assembly includes planar first and second members rotatable about a first axis. In a locked position, torque transfer is permitted between the first and second members in a first direction about the first axis. In a disengaged position, the first and second members are permitted to free-wheel relative to each other in a second direction opposite the first direction. A compliant retaining device retains the first and second members together and absorbs axial impact loads. The retaining device is less compliant in the locked position than in the disengaged position to decrease axial force at time of axial impact and improve shift feel and/or noise reduction. In a first embodiment, the retaining device includes a wave spring. In a second embodiment, the retaining device includes a stepped weir plate.

REFERENCES:
patent: 4823926 (1989-04-01), Wittler et al.
patent: 5852932 (1998-12-01), Matsumoto
patent: 6032774 (2000-03-01), Gadd
patent: 6125980 (2000-10-01), Ruth et al.
patent: 6193038 (2001-02-01), Scott et al.
patent: 6290044 (2001-09-01), Burgman et al.
patent: 6745880 (2004-06-01), Yuergens
patent: 2003/0188947 (2003-10-01), Fitz et al.

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