Celso L Fratta

US Patent:

20060076209, Apr 13, 2006

Filed:

Oct 13, 2004

Appl. No.:

10/964134

Inventors:

Celso Fratta - Marshall MI, US
Robert Kyle - Battle Creek MI, US
Keith Morgensai - Marshall MI, US
Patrick McMillan - Battle Creek MI, US

Assignee:

EATON CORPORATION - Cleveland OH

International Classification:

F16D 25/02
F16D 25/0638

US Classification:

1920850AA, 19210300F

Abstract:

A coupling device () of the type including a clutch assembly () actuation of which is responsive to fluid pressure in a clutch piston apply chamber (), and a series of fluid passages () communicating the chamber to a control valve assembly (). A housing () defines a hub portion () surrounded by a plenum member () carrying two high pressure seals (). The housing is formed such that the outer surface () of the hub portion is free of graphite porosity, to improve the life of the seals. Preferably, each of the seals () 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 ().