Transfer case for four-wheel drive vehicle
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United States of America Patent
Stats
-
Nov 30, 2004
Grant Date -
Apr 15, 2004
app pub date -
Jul 30, 2003
filing date -
Mar 27, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.
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