TRANSFER CASE FOR AN AUTOMOTIVE POWERTRAIN SYSTEM

摘要

A transfer case (16) for translating torque from an engine (12) to first and second differentials (20, 22), including: a housing (42), a primary shaft (44) supported in the housing (42) with an input end (52) in communication with the engine (12) and an output end (54) in communication with the first differential (20), a secondary shaft (46) spaced from the primary shaft (44) and in communication with the second differential (22), a clutch assembly (48) in communication with the shafts (44, 46) for selectively translating torque therebetween, and a sleeve (50) operatively attached to the primary shaft (44) between ends (52, 54). The sleeve (50) has an outer surface (68) with a plurality of radially spaced flutes (70) defined therein for directing lubricant from a predetermined location (72) of the housing (42) toward the clutch assembly (48) during rotation of the primary shaft (44).

主权项

1. A transfer case for translating rotational torque from an engine to first and second differentials of an automotive powertrain system, said transfer case comprising:
a housing; a primary shaft rotatably supported in said housing and having an input end in rotational communication with the engine and an output end in rotational communication with the first differential; a secondary shaft spaced from said primary shaft and in rotational communication with the second differential; a clutch assembly in communication with said primary shaft and said secondary shaft for selectively translating rotational torque therebetween; and a sleeve operatively attached to said primary shaft between said input end and said output end, said sleeve having an outer surface with a plurality of radially spaced flutes defined therein for directing lubricant from a predetermined location of said housing toward said clutch assembly during rotation of said primary shaft.