Coupling device and improved fluid pressure system therefor

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...

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Bibliographische Detailangaben
Hauptverfasser:	FRATTA CELSO L, MCMILLAN PATRICK J, KYLE ROBERT J, MORGENSAI KEITH E
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	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 ).