POWER TRANSMISSION DEVICE

WIPO Patent Application WO/2010/070873

A1

Provided is a power transmission device that can improve takeoff performance utilizing a torque amplifying function of a torque converter, can improve power transmission efficiency during steady travel, and permits the device to be miniaturized. The device is equipped with a torque converter (1) having a torque amplifying function, a clutch means (3) which is enabled when the vehicle is moving forward and that has a first clutch means (3a) that transmits the drive force of an engine to drive wheels via the drivetrain of the torque converter (1) and a second clutch means (3b) that transmits the drive force of the engine to the drive wheels without involving the drivetrain of the torque converter (1), a selection means (4) for selectively activating the first clutch means (3a) or the second clutch means (3b) according to the vehicle status, and a planet gear mechanism (9) that can select a power transmission path when the vehicle is moving forward and can switch the power transmission path when the vehicle is moving in reverse.

OHASHI TATSUYUKI (JP)
ASATSUKE SHOUJI (JP)
OISHI AKIO (JP)
CHIBA RYOUHEI (JP)
ISHIMURA JUN (JP)
ISHIKAWA KEIICHI (JP)

PCT/JP2009/006861

June 24, 2010

December 14, 2009

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FCC KK (JP)
OHASHI TATSUYUKI (JP)
ASATSUKE SHOUJI (JP)
OISHI AKIO (JP)
CHIBA RYOUHEI (JP)
ISHIMURA JUN (JP)
ISHIKAWA KEIICHI (JP)

F16H47/08; F16H37/02; F16H45/02

JPH03288050A	1991-12-18
JPS52109077A	1977-09-12
JPS63308266A	1988-12-15
JPS6424760U	1989-02-10
JPS5247168A	1977-04-14
JPS5244977U	1977-03-30
JPH0979346A	1997-03-25
JPH1078091A	1998-03-24

KOSHIKAWA, TAKAO (JP)
Takao Koshikawa (JP)

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