Drive transmission apparatus for vehicle and a four-wheel drive vehicle
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United States of America Patent
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Apr 25, 2006
Grant Date -
Dec 16, 2004
app pub date -
Jun 11, 2003
filing date -
Dec 25, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Providing a drive transmission apparatus for vehicle capable of ensuring the adaptability of an electric motor to a high-temperature environment and increasing the degree of freedom for apparatus layout. The drive transmission apparatus for vehicle serves to distribute a drive force generated by a rotary drive source 2 between drive wheels 6, 12, and includes: an input member 7 applied with the drive force from the rotary drive source 2; an output member 9 for outputting the drive force to the drive wheels 12; a hydraulic clutch 21 for hydraulically performing drive transmission/transmission cut-off between the input member 7 and the output member 9; an oil pump 31 for applying a hydraulic pressure to the hydraulic clutch 21; and a sensorless brushless motor for driving the oil pump.
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