Title:
LOCK-UP DEVICE AND HYDRAULIC TORQUE TRANSMISSION DEVICE EQUIPPED WITH IT
Document Type and Number:
Japanese Patent JP2008202618
Kind Code:
A
Abstract:
To reduce drag torque in a lock-up device of a hydraulic torque transmission device.
The lock-up device 7 of a torque converter 1 consists of a piston 75, a clutch plate 80 and a damper mechanism 9. The clutch plate 80 has a first flow passage P1 for connecting an inner circumference side space S3 formed in an inner part and a space S1 formed between a front cover 11 and the clutch plate 80 in an axial direction and a second flow passage P1 for connecting the inner circumference side space S3 formed in the inner part and a space S2 formed between the piston and the clutch plate 80 in the axial direction.
Inventors:
TOMIYAMA NAOKI
Application Number:
JP2007036185A
Publication Date:
September 04, 2008
Filing Date:
February 16, 2007
Export Citation:
Assignee:
EXEDY CORP
International Classes:
F16H45/02
Domestic Patent References:
JPH07145858A | 1995-06-06 | |||
JP2000337475A | 2000-12-05 |
Foreign References:
FR2797484A1 | 2001-02-16 | |||
US20030010588A1 | 2003-01-16 | |||
US5732804A | 1998-03-31 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation