LOCKUP CLUTCH MECHANISM

WIPO Patent Application WO/2001/098686

A1

A lockup clutch mechanism of a torque converter, wherein a brake lining is installed on a front cover so as to use a piston as a heating body, a cooling passage is formed in the piston on the inner peripheral side (on the rotating center side) of the face thereof opposed to the brake lining in order to effectively cool the piston by oil flow, and the oil inside a case flows from the outer peripheral side through an oil flow means and a heat capacity increasing means into the inner peripheral side cooling passage while effectively cooling the piston, whereby the piston is cooled effectively by the flow to expand a slip controllably operating area (area of transmission torque and slip rotating speed).

WATANABE HISASHI (JP)
IRITANI MASANORI (JP)
KUROISHI MASAKATSU (JP)
OHMORI TOSHIHIDE (JP)
OSAWA MASATAKA (JP)
SANDA SHUZO (JP)
TAKEUCHI HIROAKI (JP)
KOJIMA MASAHIRO (JP)

PCT/JP2001/001330

December 27, 2001

February 23, 2001

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TOYODA CHUO KENKYUSHO KK (JP)
TOYOTA MOTOR CO LTD (JP)
WATANABE HISASHI (JP)
IRITANI MASANORI (JP)
KUROISHI MASAKATSU (JP)
OHMORI TOSHIHIDE (JP)
OSAWA MASATAKA (JP)
SANDA SHUZO (JP)
TAKEUCHI HIROAKI (JP)
KOJIMA MASAHIRO (JP)

F16H45/02; (IPC1-7): F16H41/30; F16H45/02

DE19851384A1	2000-05-11
JPS6245458U	1987-03-19
US5782327A	1998-07-21
US5575363A	1996-11-19
JPH10148249A	1998-06-02
US4969543A	1990-11-13
JP2000337475A	2000-12-05

Nakajima, Jun (NAKAJIMA & KATO Seventh Floor HK-Shinjuku Bldg., 3-1, Shinjuku 4-chome Shinjuku-ku Tokyo, JP)

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