192 clutches and power-stop control – Clutches – Operators
Reexamination Certificate
2006-06-20
2006-06-20
Lorence, Richard M. (Department: 3681)
192 clutches and power-stop control
Clutches
Operators
C192S1030FA, C475S088000
Reexamination Certificate
active
07063198
ABSTRACT:
A coupling device (11) of the type including a clutch assembly (29) actuation of which is responsive to fluid pressure in a clutch piston apply chamber (43), and a series of fluid passages (53,55,57,59) communicating the chamber to a control valve assembly (69). A housing (15) defines a hub portion (61) surrounded by a plenum member (17) carrying two high pressure seals (63;163). The housing is formed such that the outer surface (60) of the hub portion is free of graphite porosity, to improve the life of the seals. Preferably, each of the seals (63;163) has a height/width ratio selected to provide the desired radially inward sealing force, but wherein the seals are still able to be assembled within the respective seal cavities (73,75;173,175).
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Fratta Celso L.
Kyle Robert J.
McMillan Patrick J.
Morgensai Keith E.
Eaton Corporation
Kasper L. J.
Lorence Richard M.
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