Adapter for transfer cases

摘要

An adapter for installation between a single-offset transfer case (52) and a transmission unit. The adapter (50) includes an adapter input shaft (66) coupled to an output shaft (20) of the transmission, an adapter output shaft coupled to an input shaft of the transfer case, and a drive mechanism connecting the adapter input and output shafts. The adapter input shaft (66) is rotatably driven by the transmission output shaft (20) about a first rotary axis. The adapter output shaft (74) is rotatably driven by the adapter input shaft about a second rotary axis. The input shaft and a first output shaft of the transfer case (34) are commonly aligned for rotation with adapter output shaft for rotation about the second rotary axis. The transfer case (50) has a second output shaft (44) supported for rotation about a third rotary axis. Optionally, the adapter may include a torque disconnect clutch (108) for disconnecting drive torque from the transmission to the transfer case for functions requiring torque interruption such as towing and for assisting in "on-the-fly" shifting between four-wheel high- and low-range drive modes.