Patent ID: 6821227
Filing Date: 2004-11-23
Classification: B60K,Y10T

Abstract:
A transfer case comprising:an input shaft; first and second output shafts; a reduction unit having an input member driven by said input shaft and an output member; an interaxle differential having a differential input driven by said output member of said reduction unit, a first differential output driving said first output shaft, and a second differential output; a disconnect clutch moveable between a released position and an engaged position for selectively establishing a drive connection between said second differential output and said second output shaft; a range clutch moveable between first and second positions for establishing corresponding high-range and low-range speed ratio drive connections between said input member and said output member of said reduction unit; a bi-directional mode clutch operably disposed between said first and second output shafts and including a mode actuator that is moveable between first and second positions to establish corresponding AUTO and LOCK modes, said mode clutch is operable in its AUTO mode to permit relative rotation between said first and second output shafts in a first direction and prevent relative rotation therebetween in a second direction, and said mode clutch is operable in its LOCK mode to prevent relative rotation between said first and second output shafts in both directions; and a shift mechanism for controlling movement of said disconnect clutch, said range clutch and said mode actuator.